PVQ steel plate

PVQ steel plate is used for the production of pressure vessels, which are closed containers designed to hold gases or liquids at a pressure substantially different than the ambient pressure.

Pressure vessel and boiler quality steel are commonly found throughout the oil industry (including inshore and offshore), the petrochemical industry and the gas production industry. The companies in these industries set the highest demands in terms of quality, testing and conditions of supply, and Sunny Steel have all the necessary expertise to meet these demands.

Specification and Grades

ASTM A285

The ASTM A285 specification covers low to intermediate tensile strength carbon steel for use in non–critical pressure vessel applications.

The plate is used as a weldable material in the fabrication of pressure vessels and industrial boilers using fusion welding i.e. the joining of the material by melting them together to form one. The plate is offered at a maximum thickness of 50mm for all grades to ensure internal robustness.

As ASTM A285 does not promote high tensile strength, it is used commonly in the fabrication of storage tanks and low pressure temperature controlled vessels.

ASTM A285 Grade C

Although only effective in lower pressure environments, ASTM 285 Grade C is found throughout industry in a wide range or low pressurised applications. ASTM A285 Grade C is used in a range of other applications including structural, mechanical and general engineering purposes.

ASTM A285 Grade C is a low to intermediate yield steel used in the fabrication of carbon steel pressure vessels and boilers.

The material has good forming and welding characteristics under conventional methods.
(Chemical values are maximum unless stated otherwise. Mechanical properties are minimum values)
(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

Table 1: Chemical & Mechanical Values for ASTM A285 Grade C

Element	Data
C	0.16
Si	0.35
Mn	0.4/1.2
P	0.03
S	0.03
Al	0.02
Cr	0.3
Cu	0.3
N	0.3
Mo	0.08
Nb	0.01
Ti	0.03
V	0.02
Tensile (N/mm²)	360/480
Yield/min (N/mm²)	235

ASME SA285

Covering low to intermediate tensile strength carbon steel for use in non–critical pressure vessel applications, ASME SA285 sets standards for plates used by fabricators in the production of weldable pressure vessels & boilers.

As the standard is specifically for low to intermediate tensile strength, the steel plates supplied under this standard should be used in low pressure storage tanks, boilers and vessels.

We supply high quality ASME SA285 Grade C pressure vessel steel plate which is available ex–stock from our UK warehouse and can be shipped worldwide.

ASME SA285 Grade C

ASME SA285 Grade C is a low to intermediate tensile strength pressure vessel grade steel. Used in the fabrication of pressure vessels and boiler tanks, SA285 Grade C should not be considered for use in high pressure applications.

The material has good weldability under conventional methods using fusion welding. Plates supplied to this standard are normally delivered ‘as rolled’ unless otherwise specified.

(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

Table 1: Chemical & Mechanical Values for ASME SA285 Grade C

Elment	Data
C	0.16
Si	0.35
Mn	0.4/1.2
P	0.03
S	0.03
Al	0.02
Cr	0.3
Cu	0.3
Ni	0.3
Mo	0.08
Nb	0.01
Ti	0.03
V	0.02
Tensile N/mm²	360/480
Yield N/mm²	235

ASTM A516

We stock and supply a wide range of pressure vessel steel plate grades for working environments where safe operating pressure is critical.

Our pressure vessel steel is of Western European origin which is the steel of choice for the world’s boiler & pressure vessel fabricators.

We have a global reputation for the supply of high quality pressure vessel steel to these fabricators and many of them are suppliers to some of the worlds largest gas, oil and petrochemical companies.

ASTM A516 Grade 60

ASTM A516 Grade 60 is a boiler and pressure vessel quality steel which is ideal for moderate and lower temperature service.

The material is used extensively by industrial boiler and pressure vessel fabricators who provide manufacturing support to the oil, gas and petrochemical industry. The steel has good weldability and excellent notch toughness.

Alternatively we can ship to you directly from the mill.

Please refer to the data tables below. Should your require a pressure grade steel with greater tensile and yield strength, please refer to ASTM A516 Grade 65 and/or ASTM A516 Grade 70.

Table 1: Chemical Composition of ASTM A516 Grade 60

Element	Data
Carbon (C)	%
12.5mm or less 12.5 – 50mm 50 – 100mm 100 – 200mm > 200mm	0.21 0.23 0.25 0.27 0.27
Sulphur (S)	%
(max)	0.035
Manganese (Mn)	%
12.5mm or less • Heat Analysis : • Product Analysis : Over 12.5mm • Heat Analysis : • Product Analysis :	0.6-0.9 0.55-0.98 0.85-1.20 0.79-1.30
Phosphorus (P)	%
(max)	0.035
Sulphur (S)	%
(max)	0.035
Silicon (Si)	%
• Heat Analysis : • Product Analysis :	0.15-0.40 0.13-0.45

(Maximum values unless stated otherwise)

Table 2: Mechanical Properties of ASTM A516 Grade 60

DESCRIPTION	GRADE 60
Tensile strength (ksi)	60-80
Tensile strength (MPa)	415-550
Yield strength (ksi)	32
Yield strength (MPa)	220
Elongation in 200mm (min)(%)	21
Elongation in 50mm (min) (%)	25
Thickness (max)(mm)	205

(Minimum values unless stated otherwise)

(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

ASTM A516 Grade 65

ASTM A516 Grade 65 is an excellent weldable carbon steel choice for pressure vessels and boiler fabrication. The material offers excellent performance in lower than ambient temperature service, has good weldability and excellent notch toughness.

A516 Grade 65 has greater specified tensile and yield strength when compared with ASTM A516 Grade 60

Used throughout the oil, gas and petrochemical industry, the steel is also found in sour service and wet H2S applications (where the steel is HIC tested).

Table 1: Chemical Composition of ASTM A516 Grade 65

Element	Data
Carbon (C)	%
12.5mm or less 12.5 – 50mm 50 – 100mm 100 – 200mm > 200mm	0.24 0.26 0.28 0.29 0.29
Manganese (Mn)	%
12.5mm or less • Heat Analysis : • Product Analysis : Over 12.5mm • Heat Analysis : • Product Analysis :	0.85-1.20 0.79-1.30 0.85-1.20 0.79-1.30
Phosphorus (P)	%
(max)	0.035
Sulphur (S)	%
(max)	0.035
Silicon (Si)	%
• Heat Analysis : • Product Analysis :	0.15-0.40 0.13-0.45

(Maximum values unless stated otherwise)

Table 2: Mechanical Properties of ASTM A516 Grade 65

DESCRIPTION	GRADE 65
Tensile strength (ksi)	65-85
Tensile strength (MPa)	450-585
Yield strength (ksi)	35
Yield strength (MPa)	240
Elongation in 200mm (min)(%)	19
Elongation in 50mm (min) (%)	21
Thickness (max)(mm)	205

(Minimum values unless stated otherwise)

(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

ASTM A516 Grade 70

Sunny Steel supply high quality carbon steel plate for boiler and pressure vessel fabrication which is ideally suited to the high standards set by the oil, gas and petrochemical industry – this is why we stock an extensive range of carbon plates according to ASTM A516 Grade 70.

ASTM A516 Grade 70 is an excellent choice for service in lower than ambient temperature applications, has excellent notch toughness and is used in both pressure vessels and industrial boilers.

A516 Grade 70 offers greater tensile and yield strength when compared to ASTM A516 Grade 65 and can operate in even lower temperature service.

Our plates come with mill certification in accordance with EN10204 3.1 or EN10204 3.2. Our plates are fully traceable, usually with hard stamping and we welcome any third party or customer inspection if required which can be arranged with the client.

Table 1: Chemical Composition of ASTM A516 Grade 70

Element	Data
Carbon (C)	%
12.5mm or less 12.5 – 50mm 50 – 100mm 100 – 200mm > 200mm	0.27 0.28 0.30 0.31 0.31
Manganese (Mn)	%
12.5mm or less • Heat Analysis : • Product Analysis : Over 12.5mm • Heat Analysis : • Product Analysis :	0.85-1.20 0.79-1.30 0.85-1.20 0.79-1.30
Phosphorus (P)	%
(max)	0.035
Sulphur (S)	%
(max)	0.035
Silicon (Si)	%
• Heat Analysis : • Product Analysis :	0.15-0.40 0.13-0.45

(Maximum values unless stated otherwise)

Table 2: Mechanical Properties of ASTM A516 Grade 70

DESCRIPTION	GRADE 70
Tensile strength (ksi)	70-90
Tensile strength (MPa)	485-620
Yield strength (ksi)	38
Yield strength (MPa)	260
Elongation in 200mm (min)(%)	17
Elongation in 50mm (min) (%)	21
Thickness (max)(mm)	205

(Minimum values unless stated otherwise)

ASME SA516

The ASME SA516 specification is part of the ASME Boiler & Pressure Vessel Code (BPVC) and is a standard which governs the use of carbon steel in weldable industrial boilers and pressure vessels.

The specification sets standards for pressure vessel and boiler quality steel in moderate and lower temperature service. Steel grades which come under this specification are recognised for certain characteristics which include excellent notch toughness and weldability. The material grades vary in performance and such performance is dictated in part by the steels chemical composition.

As a stockholder and global supplier of high quality pressure vessel carbon steel plate, Sunny Steel offer range of ASME SA516 grades which is the steel of choice for fabricators serving industry, especially in the oil, gas and chemical supply markets.

ASME SA516 Grade 60

An ideal steel for use in moderate to lower working temperatures, ASME SA516 Grade 60 is used in the fabrication of weldable industrial boilers and steel pressure vessels.

It is a normalized steel which is known for its excellent notch toughness and weldability and is primarily found in pressurised service throughout the oil, gas and petrochemical industry.

Table 1: Chemical Composition of ASME SA516 Grade 60

Carbon (C)	%
12.5mm or less 12.5 – 50mm 50 – 100mm 100 – 200mm > 200mm	0.21 0.23 0.25 0.27 0.27
Manganese (Mn)	%
12.5mm or less • Heat Analysis : • Product Analysis : Over 12.5mm • Heat Analysis : • Product Analysis :	0.60-0.90 0.55-0.98 0.85-1.20 0.79-1.30
Phosphorus (P)	%
(max)	0.035
Sulphur (S)	%
(max)	0.035
Silicon (Si)	%
• Heat Analysis : • Product Analysis :	0.15-0.40 0.13-0.45

(Maximum values unless stated otherwise)

Table 2: Mechanical Properties of ASME SA516 Grade 60

DESCRIPTION	GRADE 60
Tensile strength (ksi)	60-80
Tensile strength (MPa)	415-550
Yield strength (ksi)	32
Yield strength (MPa)	220
Elongation in 200mm (min)(%)	21
Elongation in 50mm (min) (%)	25

(Minimum values unless stated otherwise)

ASME SA516 Grade 65

Suitable for a variety of applications in the Petrochemical, Chemical, Oil & Gas Industries, ASME SA516 Grade 65 is a carbon steel used by worldwide fabricators serving these markets.

The steel grade is used in the fabrication of weldable pressure vessels and boilers due to the materials specific composition and characteristics. Excellent notch toughness coupled with good weldability are consistent typical in this grade.

Table 1: Chemical Composition of ASME SA516 Grade 65

Carbon (C)	%
12.5mm or less 12.5 – 50mm 50 – 100mm 100 – 200mm > 200mm	0.24 0.26 0.28 0.29 0.29
Manganese (Mn)	%
12.5mm or less • Heat Analysis : • Product Analysis : Over 12.5mm • Heat Analysis : • Product Analysis :	0.85-1.20 0.79-1.30 0.85-1.20 0.79-1.30
Phosphorus (P)	%
(max)	0.035
Sulphur (S)	%
(max)	0.035
Silicon (Si)	%
• Heat Analysis : • Product Analysis :	0.15-0.40 0.13-0.45

(Maximum values unless stated otherwise)

Table 2: Mechanical Properties of ASME SA516 Grade 65

DESCRIPTION	GRADE 65
Tensile strength (ksi)	65-85
Tensile strength (MPa)	450-585
Yield strength (ksi)	35
Yield strength (MPa)	240
Elongation in 200mm (min)(%)	19
Elongation in 50mm (min) (%)	23

(Minimum values unless stated otherwise)

ASME SA516 Grade 70

Used throughout the oil, gas and petrochemical industry the material is a normalized steel with excellent weldability and improved notch toughness i.e. the materials ability to absorb energy when a flaw is present.

We keep this material in stock with added stringent restrictions applied to the chemical, mechanical and testing requirements – this ensures that the material is available to you from our warehouse, regardless of your requirements.

Table 1: Chemical Composition of ASME SA516 Grade 70

Carbon (C)	%
12.5mm or less 12.5 – 50mm 50 – 100mm 100 – 200mm > 200mm	0.27 0.28 0.30 0.31 0.31
Manganese (Mn)	%
12.5mm or less • Heat Analysis : • Product Analysis : Over 12.5mm • Heat Analysis : • Product Analysis :	0.85-1.20 0.79-1.30 0.85-1.20 0.79-1.30
Phosphorus (P)	%
(max)	0.035
Sulphur (S)	%
(max)	0.035
Silicon (Si)	%
• Heat Analysis : • Product Analysis :	0.15-0.40 0.13-0.45

Table 2: Mechanical Properties of ASME SA516 Grade 70

DESCRIPTION	GRADE 70
Tensile strength (ksi)	70-90
Tensile strength (MPa)	485-620
Yield strength (ksi)	38
Yield strength (MPa)	260
Elongation in 200mm (min)(%)	17
Elongation in 50mm (min) (%)	21

(Minimum values unless stated otherwise)

ASTM A537

The ASTM A537 specification covers heat treated carbon steel plates for pressure vessel applications.

ASTM A537 Class 1 plates are supplied in the normalised condition whilst Class 2 plates are quenched and tempered. ASTM A537 carbon steel plates promote greater tensile and yield strength than pressure vessel plates supplied under the ASTM A516 standard.

Our plates can be shipped from our own stockholding in the UK or directly from the mill itself. As we are part of the mill rolling program we can ship plates to our customers to meet their deadlines on a global basis. The steel can also be tested to your specific requirements.

We also have own own steel processing plant which means that we can supply ASTM A537 steel profiles cut to your specific requirements using our CAD controlled multi–head flame cutters.

ASTM A537 Class 1

ASTM A537 Class 1 carbon steel plates are engineered to be used in pressure vessel applications.

The material is a normalised steel which is heat treated and as a consequence displays greater yield and tensile strength than the more standard ASTM A516 grades.

We can supply ASTM A537 Class 1 plates from stock or directly from the mill. We also offer an in house profiling service where the material can be cut to the size or shape you require.

Table 1: Chemical Composition of ASTM A537 Class 1

Element	%
C	0.24
Si	0.15/0.50
Mn < 40mm	0.70/1.35
Mn > 40mm	1.00/1.60
P	0.035
S	0.035
Cr	0.25
Mo	0.80
Ni	0.25
Cu	0.35

(Maximum values unless stated otherwise)

Table 2: Mechanical Properties of ASTM A537 Class 1

YIELD (MPA)	TENSILE (MPA)	ELONGATION A50MM	ELONGATION A200MM	THICKNESS
345	485-620	22%	18%	< 65
310	450/585	22%	18%	> 65 < 100

(Minimum values unless stated otherwise)

(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

ASTM A537 Class 2

ASTM A537 Class 2 steel is a higher yield and tensile strength material used in the fabrication of pressurised vessels and steel boilers.

The steel includes the alloying of carbon, manganese and silicon and is heat treated using the quenched and tempered method which gives the material its residual strength. Sourced by the world’s leading fabricators, ASTM A537 Class 2 is a material used extensively by the oil, gas and petrochemical industry.

Table 1: Chemical Composition of ASTM A537 Class 2

Element	%
C	0.24
Si	0.15/0.50
Mn < 40mm	0.70/1.35
Mn > 40mm	1.00/1.60
P	0.035
S	0.035
Cr	0.25
Mo	0.80
Ni	0.25
Cu	0.35

(Maximum values unless stated otherwise)

Table 2: Mechanical Properties of ASTM A537 Class 2

YIELD (MPA)	TENSILE (MPA)	ELONGATION A50MM	ELONGATION A200MM	THICKNESS
415	550/690	22%	–	< 65
380	515/655	22%	–	> 65 < 100
315	485/620	20%	–	> 100 < 150

(Minimum values unless stated otherwise)

EN 10028

EN10028: Part2 :2006 is a euro norm standard relating to weldable pressure vessel grade alloy and non–alloy steels used in elevated temperature service.

The standard supersedes the old British and DIN standards. Chrome Molybdenum steels, with their higher temperature resistance, come under this standard and this section includes link to EN10028 chrome moly grades which are suitable for the fabrication of pressure vessels and boilers.

Chrome Molybdenum pressure vessel grade steels offers good corrosion resistance and weldability. We supply this material to fabricators who serve the major oil, petrochemical and gas companies.

EN 10028 10CrMo910

10CrMo910, with increased molybdenum and chromium, provides greater heat and corrosion resistance than 16Mo3 & 13CrMo45.

Again the material is a pressure vessel grade steel for use in elevated temperature service. The steel has good weldability and is offered under the EN 10028 standard.

Please refer to the technical information for 10CrMo910 below.

Mechanical Properties of 10CrMo910

GRADE	THICKNESS	YIELD STRENGTH	TENSILE STRENGTH	ELONGATION (A)	IMPACT ENERGY KV AT TEST TEMPERATURE
	(mm)	50	100	150	-20	0	+20
		MPa	MPa	%	J	J	J
16Mo3	< 16	310	480/630	18	–	–	31
	> 16 < 40	300	480/630	18	–	–	31
	> 40 < 60	290	480/630	18			27
	> 60 < 100	280	470/620	17			27
	> 100 < 150	265	460/610	17			27
	> 150 < 250	250	450/600	17			27

Chemical Composition of 10CrMo910Element  % Carbon (C) 0.08/0.14 Silicon (Si) 0.50 Manganese (Mn) 0.40/0.80 Phosphorus (P) 0.020 Sulphur (S) 0.010 Chromium (Cr) 2.00/2.50 Molybdenum (Mo) 0.90/1.10 Nitrogen (N) 0.012 Copper (Cu) 0.30

EN 10028 13CrMo45

13CrMo45 is chrome moly steel intended for use in the fabrication of weldable steel pressure vessels and boilers in elevated temperature service.

The material offers excellent performance with higher than normal temperature resistance and displays excellent anti-corrosive properties making it suitable steel for use in sour service environments. Popular with the oil, petrochemical and gas industries, 13CrMo45 is supplied under the EN 10028 euro norm standard.

Technical information for 13CrMo45 can be found below.

Mechanical Properties of 13CrMo45

GRADE	THICKNESS	YIELD STRENGTH	TENSILE STRENGTH	ELONGATION (A)	IMPACT ENERGY KV AT TEST TEMPERATURE
	(mm)	50	100	150	-20	0	+20
		MPa	MPa	%	J	J	J
16Mo3	< 16	300	450/600	19	–	–	31
	> 16 < 60	290	450/600	19	–	–	31
	> 60 < 100	270	440/590				27
	> 100 < 150	255	430/580				27
	> 150 < 250	245	420/570				27

Chemical Composition of 13CrMo45

Element	%
Carbon (C)	0.08/0.18
Silicon (Si)	0.35
Manganese (Mn)	0.40/1.00
Phosphorus (P)	0.025
Sulphur (S)	0.010
Chromium (Cr)	0.70/1.15
Molybdenum (Mo)	0.40/0.60
Nitrogen (N)	0.012
Copper (Cu)	0.30

EN 10028 16Mo3

16Mo3 is a EN10028 specified pressure vessel grade chrome molybdenum steel alloy for use in elevated working temperatures.

The material is used as a weldable steel in the fabrication of industrial boilers and steel pressurised vessels found in the oil, gas and chemical industry. Due to the materials chrome and molybdenum content, 16Mo3 has excellent heat resistance and corrosion resistant characteristics.

Mechanical Properties of 16Mo3

GRADE	THICKNESS	TEMPERATURE (DEG C)
	(mm)	50	100	150	200	250	300	350	400	450	500
		MPa	MPa	MPa	MPa	MPa	MPa	MPa	MPa	MPa	MPa
16Mo3	< 16	273	264	250	233	213	194	175	159	147	141
	> 16 < 40	268	259	245	228	209	190	172	156	145	139
	> 40 < 60	258	250	236	220	202	183	165	150	139	134
	> 60 < 100	238	230	218	203	186	169	153	139	129	123
	> 100 < 150	218	211	200	186	171	155	140	127	118	113
	> 150 < 250	208	202	191	178	163	148	134	121	113	108

Chemical Composition of 16Mo3

Element	%
Carbon (C)	0.12/0.20
Silicon (Si)	0.35
Manganese (Mn)	0.40/0.90
Phosphorus (P)	0.025
Sulphur (S)	0.010
Chromium (Cr)	0.030
Molybdenum (Mo)	0.25/0.35
Nickel (Ni)	0.30
Nitrogen (N)	0.012
Copper (Cu)	0.30

BS 1501

BS 1501 is the British Standard specification for carbon and carbon manganese steel plates for pressure purposes.

The standard (which outlines standards for certain grades which are suitable for pressure vessel and boiler fabrication) has now been withdrawn and superseded by the Euro Norm standard EN 10028.

Below are a list of BS 1501 grades which are known to be suitable for use in industrial boilers, pressure vessels and heat exchangers.

BS 1501 – Comparable Pressure Vessel / Boiler Grades

• BS1501-161-360A/B
• BS1501-161-430A/B
• BS1501-223-490A/B
• BS1501-224-460A/B
• BS1501-224-490A/B
• BS1501-225-490A/B

The above grades should be used as reference material only. For information on current specifications relating to pressure vessel and boiler quality steel, please refer to the ASTM, ASME and EN specifications.

BS1501 – 161-360A/B

BS-161-360A/B (often referred to as Grade 360A/B) is a British Standard specified steel which is ideal for use in fabricated steel pressure vessels and boilers.

The BS specification has now been superseded by the Euro Norm specification EN 10028, however, many companies in the industry still refer to this standard, so we have included details of the grade for cross reference purposes.

There are two types BS1501-161-360 available which are …

• Type A :
  Denotes specified min. room temperature tensile properties
• Type B :
  As per Type A but with elevated temperature properties

Table 1: Chemical Composition of BS1501 – 161-360A/B

Element	%
*C (max)	0.22
Si (min)	0.10
Si (max)	0.40
Mn (min)	0.90
Mn (max)	1.60
P (max)	0.030
S (max)	0.030
*Al (metallic) (min)	0.015
Cr (max)	0.25
Cu (max)	0.30
Mo (max)	0.10
Ni (max)	0.75

(* Element accumulative total 0.70% max.)

Table 2: Mechanical Properties of BS1501 – 161-360A/B

NOMINAL PLATE THICKNESS		TENSILE STRENGTH		YIELD STRENGTH	ELONGATION
Over (mm)	Up to and inc. (mm)	min. N/mm²	max. N/mm²	min. N/mm²	min. (%)
3	16	460	580	325	21
16	40			315	21
40	63			305	20
63	100			*	19
100	150			*	19

BS1501 – 161-430A/B

BS-161-430A/B is a British Standard specified steel which has now been superseded by the Euro Norm specification EN 10028.

As reference is still being made to this material by prospective clients, we have included details of BS -161-430A/B on this reference for information purposes. The steel is used in the fabrication of welded pressure vessels and boilers.

There are two types of BS1501-161-430 available which are …

• Type A :
  Denotes specified min. room temperature tensile properties
• Type B :
  As per Type A but with elevated temperature properties

Table 1: Chemical Composition of BS1501 – 161-430A/B

Element	%
*C (max)	0.22
Si (min)	0.10
Si (max)	0.40
Mn (min)	0.90
Mn (max)	1.60
P (max)	0.030
S (max)	0.030
*Al (metallic) (min)	0.015
Cr (max)	0.25
Cu (max)	0.30
Mo (max)	0.10
Ni (max)	0.75

(* Element accumulative total 0.70% max.)

Table 2: Mechanical Properties of BS1501 – 161-430A/B

NOMINAL PLATE THICKNESS		TENSILE STRENGTH		YIELD STRENGTH	ELONGATION
Over (mm)	Up to and inc. (mm)	min. N/mm²	max. N/mm²	min. N/mm²	min. (%)
3	16	490	610	325	21
16	40			315	21
40	63			305	20
63	100			*	19
100	150			*	19

(Please note: the technical information above is for guidance only – for exact specifications please check with our Sales Team)

BS1501 – 223-490A/B

BS1501-223-490A/B is steel grade ideally suited for use in the fabrication of weldable pressure vessels & boilers. The standard which is provided by the British Standards Institute has now been replaced with the European standard EN1002.

Although BS-223-490A/B is no longer a currently active spec for pressure vessel steel it is still widely referred to in the industry and for this reason we have included details on our website for cross referencing purposes.

There are two types of BS1501-223-490 available which are …

• Type A :
  Denotes specified min. room temperature tensile properties
• Type B :
  As per Type A but with elevated temperature properties

Table 1: Chemical Composition of BS1501 – 223-490A/B

NOMINAL PLATE THICKNESS		TENSILE STRENGTH		YIELD STRENGTH	ELONGATION
Over (mm)	Up to and inc. (mm)	min. N/mm²	max. N/mm²	min. N/mm²	min. (%)
3	16	490	610	355	21
16	40			345	21
40	63			340	20
63	100			*	19
100	150			*	19

Table 2: Mechanical Properties of BS1501 – 223-490A/B

Element	%
*C (max)	0.20
Si (min)	0.10
Si (max)	0.50
Mn (min)	0.90
Mn (max)	1.60
P (max)	0.030
S (max)	0.030
*Al (metallic) (min)	0.015
Ni (min)	0.010
Ni (max)	0.060
Cr (max)	0.25
Cu (max)	0.30
Mo (max)	0.10
Ni (max)	0.75

DIN 17155

DIN 17155 is the outdated German specification for pressure vessel steels and boiler quality plate. This specification (along with the BS standard) have now been superseded by EN 10028.

We find that our customers still refer to this old standard from time to time which is why we have included information of grades to the DIN 17155 specification on this website.

Please note though, that the information should now be used for cross reference purposes only.

DIN 17155 Pressure Vessel Grades

• DIN 17155 HI
• DIN 17155 HII
• DIN 17155 17MN4
• DIN 17155 19MN6

DIN 17155 HI

DIN standard HI pressure vessel steel has now been superseded with the Euro Norm specification EN 10028. We find however that our clients still search and make enquiries for this steel which is why we have provided grade specification details on this website.

Please refer to the technical information below.

Please note that this information should be used for cross reference purposes and you should refer to equivalent grades when making your enquiry for pressure vessel grade steel.

Table 1: Chemical Composition & Mechanical Properties of DIN 17155 HI

Element	%
C	0.16
Si	0.35
Mn	0.40/1.20
P	0.030
S	0.025
Al	0.020
Cr	0.30
Cu	0.30
Ni	0.30
Mo	0.08
Nb	0.01
Ti	0.03
V	0.02
Tensile (N/mm²)	360/480
Yield/min (N/mm²)	235

(All values are % Max unless stated. Yield value is minimum.)

DIN 17155 HII

DIN 17155 HII is the German standard for pressure vessel steel. This standard is no longer active and has been superseded along with the old British Standard by EN 10028, the new Euro Norm standard. Our customers often search and make sales enquiries for this steel grade and as a consequence we have provided grade specification details on this website.

Please refer to the technical data below. Note that this information should be used for cross reference purposes – please refer to equivalent grades when making your enquiry for our pressure vessel grade steels.

Table 1: Chemical Composition & Mechanical Properties of DIN 17155 HII

Element	%
C	0.20
Si	0.40
Mn	0.50/1.40
P	0.030
S	0.025
Al	0.020
Cr	0.30
Cu	0.30
Ni	0.30
Mo	0.08
Nb	0.01
Ti	0.03
V	0.02
Tensile (N/mm²)	410/530
Yield/min (N/mm²)	265

(All values are % Max unless stated. Yield value is minimum.)

DIN 17155 17Mn4

DIN 17MN4 has now been superseded by the euro norm specification EN10028.

We have included details of 17MN4 on this website for cross reference purposes but should you wish to purchase pressure vessel steel to this specification, please consider the following alternatives…

• ASTM A516 Grade 65
• ASME SA516 Grade 65
• P295GH
• BS1501-224-460A/B

Table 1: Chemical Composition & Mechanical Properties of DIN 17155 17Mn4

Element	%
C	0.08/0.20
Si	0.40
Mn	0.90/1.50
P	0.030
S	0.025
Al	0.020
Cr	0.30
Cu	0.30
Ni	0.30
Mo	0.08
Nb	0.01
Ti	0.03
V	0.02
Tensile (N/mm²)	460/580
Yield/min (N/mm²)	295

(All values are % Max unless stated. Yield value is minimum.)

DIN 17155 19Mn6

DIN 17155 19MN6 is an outdated German specification for pressure vessel steel. This technical specification has now been superseded by EN 10028 but we have provided details of 19MN6 on our website for cross reference purposes.

Customers should consider the steel grades below as alternatives…

• P355NH
• BS1501-225-490A/B

Table 1: Chemical Composition & Mechanical Properties of DIN 17155 19Mn6

(All values are % Max unless stated. Yield value is minimum.)

Element	%
C	0.08/0.20
Si	0.40
Mn	0.90/1.50
P	0.030
S	0.025
Al	0.020
Cr	0.30
Cu	0.30
Ni	0.30
Mo	0.08
Nb	0.01
Ti	0.03
V	0.02
Tensile (N/mm²)	460/580
Yield/min (N/mm²)	295

ASTM A553 Type 1

ASTM A553 Type 1 covers 9% nickel alloy steel plates that are used in the fabrication of cryogenic pressure vessels. This material is capable of operating at temperatures as low as -196oC, and has high levels of strength and weldability.

ASTM A553 Type 1 9% nickel is a martensitic steel when it is quenched or tempered up to thicknesses as high as 100 mm. It is a unique martensite as it isn’t brittle or hard, but it is strong and tough which makes it easily to fabricate into pressure vessels.

Our range of ASTM A553 Type 1 9% nickel steels are perfect for containing or transporting cryogenic gases, such as nitrogen, oxygen, and argon.

Element	CHEMICAL COMPOSITION OF ASTM A553 TYPE 1
Carbon (C)	0.13%
Manganese (Mn)	0.9%
Phosphorus (P)	0.035%
Sulfur (S)	0.040%
Silicon (Si)	0.15-0.30%
Nickel (Ni)	8.50-9.50%
Iron (Fe)	Base Metal

ASTM A553 Type 2

ASTM A553 Type 2 covers 8% nickel alloy steel plates that are used in the fabrication of cryogenic pressure vessels. This material is capable of operating at temperatures as low as -170oC, and has high levels of strength and weldability.

ASTM A553 Type 2 8% nickel is a martensitic steel when it is quenched or tempered up to thicknesses as high as 100 mm. It is a unique martensite as it isn’t brittle or hard, but it is strong and tough which makes it easily to fabricate into pressure vessels.

Our range of ASTM A553 Type 2 8% nickel steels are perfect for containing or transporting cryogenic gases, such as nitrogen, oxygen, and argon.

Element	Chemical Composition of ASTM A553 Type 1
Carbon (C)	0.13%
Manganese (Mn)	0.9%
Phosphorus (P)	0.035%
Sulfur (S)	0.040%
Silicon (Si)	0.15-0.30%
Nickel (Ni)	7.50-8.50%
Iron (Fe)	Base Metal

ASME SA553 Type 1

ASME SA553 Type 1 covers 9% nickel alloy steel plates that are used in the fabrication of cryogenic pressure vessels. This material is capable of operating at temperatures as low as -196oC, and has high levels of strength and weldability.

ASME SA553 Type 1 9% nickel is a martensitic steel when it is quenched or tempered up to thicknesses as high as 100 mm. It is a unique martensite as it isn’t brittle or hard, but it is strong and tough which makes it easily to fabricate into pressure vessels.

Our range of ASME SA553 Type 1 9% nickel steels are perfect for containing or transporting cryogenic gases, such as nitrogen, oxygen, and argon.

Element	Chemical Composition of ASTM A553 Type 1
Carbon (C)	0.13%
Manganese (Mn)	0.9%
Phosphorus (P)	0.035%
Sulfur (S)	0.040%
Silicon (Si)	0.15-0.30%
Nickel (Ni)	8.50-9.50%
Iron (Fe)	Base Metal

ASME SA553 Type 2

ASME SA553 Type 2 covers 8% nickel alloy steel plates that are used in the fabrication of cryogenic pressure vessels. This material is capable of operating at temperatures as low as -170oC, and has high levels of strength and weldability.

ASME SA553 Type 2 8% nickel is a martensitic steel when it is quenched or tempered up to thicknesses as high as 100 mm. It is a unique martensite as it isn’t brittle or hard, but it is strong and tough which makes it easily to fabricate into pressure vessels.

Our range of ASME SA553 Type 2 8% nickel steels are perfect for containing or transporting cryogenic gases, such as nitrogen, oxygen, and argon.

Element	Chemical Composition of ASTM A553 Type 1
Carbon (C)	0.13%
Manganese (Mn)	0.9%
Phosphorus (P)	0.035%
Sulfur (S)	0.040%
Silicon (Si)	0.15-0.30%
Nickel (Ni)	7.50-8.50%
Iron (Fe)	Base Metal

ASTM A353

ASTM A353 specification covers 9% nickel steel plates that are double-normalized and tempered, and this steel is used for cryogenic welded pressure vessels. These steel plates are usually limited to a thickness of 50 mm.

ASTM A353 9% nickel is can operate at temperatures lower than -196oC, which is needed for the containment and transportation of cryogenic gases such as argon, nitrogen, and oxygen.

This steel plate has a tensile strength of 690-825 MPa and yield strength 515 MPa. These properties make ASTM A353 9% nickel a fantastic choice for cryogenic pressure vessel steel production.

Element	%
Carbon (C)	0.13%
Manganese (Mn)	0.9%
Phosphorus (P)	0.035%
Sulfur (S)	0.040%
Silicon (Si)	0.15-0.30%
Nickel (Ni)	8.50-9.50%
Iron (Fe)	Base Metal

ASME SA353

ASME SA353 specification covers 9% nickel steel plates that are double-normalized and tempered, and this steel is used for cryogenic welded pressure vessels. These steel plates are usually limited to a thickness of 50mm.

ASME SA353 9% nickel can operate at temperatures lower than -196oC, which is needed for the containment and transportation of cryogenic gases such as argon, nitrogen, and oxygen.

This steel plate has a tensile strength of 690-825 MPa and yield strength 515 MPa. These properties make ASME SA353 9% nickel a good choice for cryogenic pressure vessel steel production.

Element	%
Carbon (C)	0.13%
Manganese (Mn)	0.9%
Phosphorus (P)	0.035%
Sulfur (S)	0.040%
Silicon (Si)	0.15-0.30%
Nickel (Ni)	8.50-9.50%
Iron (Fe)	Base Metal