Stainless steel tube resistance to corrosion, staining and rust, making it ideal for many industries and applications, including architecture and cookware.

Sunny Steel offer a selection of thin wall stainless steel tube in fractional, metric and Imperial sizes and in accordance with global specifications. We also bring to you huge varieties of stainless steel pipe and fittings, sheets, plates and hollow bars.

304 / 304L Stainless Steel Tube and Pipe

Our stainless steel tubing is manufactured in hydraulic, pressure, mechanical and boiler tube sizes. We carry stainless steel tubing in wide variety of specifications to meet your commercial, defense and aircraft requirements, AMS, ASTM, ASME, MIL-T and MIL-S specifications including full certification and mill test reports to address all your quality concerns.

We stock over 20 grades of austenitic, ferritic, nickel based and duplex stainless steel tubing to meet your corrosion and high temperature needs. Our inventory strategy of maintaining depth in commodity sizes and keeping levels of uncommon sizes has made us the vendor the industry can depend on. Our multiple warehouses are strategically located to reduce your delivery time.

Seamless stainless steel tube and welded stainless steel tube

Types:304, 304H, 304L, 309, 310, 316, 317L, 321, 321H, 347, 347H, 410, 440C, 446, 2205 Duplex
Specifications:ASTM A213,ASME SA213,ASTM A249,ASME SA249,ASTM, A268,ASTM A269,ASTM A511,AMS 5566,AMS 5570,AMS 5571,AMS 5576, AMS 5639,AMS 5645, MIL-T-6845,MIL-T-8504, MIL-T-8808

Stainless steel tube & pipe specifications

SPEC. NO.	TITLE	SCOPE
ASTM A 213 ASME SA 213	Seamless Ferritic Stainless Steel and Austenitic Stainless Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes.	Pressure tubes, made from 16 grades of austenitic stainless steel and from 12 grades of ferritic Cr-Mo Alloy Steel.
ASTM A 249 ASME SA 249	Welded Austenitic Stainless Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes.	Pressure tubes, made from austenitic stainless steels, (Types 304, 304H, 304L, 305, 309, 310,316, 316H, 316L, 317, 321, 321H, 347, 347H, 348, 348H, and XM grades.)
ASTM A 268 ASME SA 268	Seamless and Welded Ferritic Stain-less Steel Tubing for General Service.	15 grades of ferritic stainless steel tubing for general corrosion resistance and high temperature service. (Types 329, 405, 409, 410, 429, 430, 430Ti, 443, 446, XMs & others).
ASTM A 269	Seamless and Welded Austenitic Stainless Steel Tubing for General Service.	13 grades of austenitic stainless,steel tubing for general corrosion- resisting and high-temperature service. (Types 304, 304L, 316, 316L, 317, 321,347, 348 and XM grades).
ASTM A 270	Seamless and Welded Austenitic Stainless Steel Sanitary Tubing.	Austenitic stainless steel intended for usein the diary and food industry in sizes up”to andincluding 4 in. in outside diameter.
ASTM A312 ASME SA 312	Seamless and Welded Austenitic Stainless Steel Pipe.	Austenitic stainless steel pipe intended for high temperature and general corrosive service.22 grades are covered.
ASTM A 358 ASME SA 358	Electric-Fusion-Welded Austenitic Chromium-Nickel Altoel for High-Temperature	For corrosion and high temperature service, normally not less than 8 in. nominal diameter. Types 304, 316, 309, 310, 321, 321, 347, 304L; 316L, 304H, 316H.
ASTM A 376 ASME SA 376	Seamless Austenitic Stainless Steel Pipe for High-Temp Central-Station Service.	Austenitic stainless steel pipe intended for high temperature and general corrosive service. Better surface than A312 pipe.
ASTM A 409 ASME SA 409	Welded Large Outside Diameter Light- Wall Austenitic Chromium-Nickel .Alloy Steel Pipe for Corrosive or High-Temperature Service.	Nominal diameter 14-30 in. in Schedules SS and 105. Types 304, 309, 310, 316, 317, 321, 347, 348, 304L, 316L.
ASTM A 450 ASME SA 450	General Requirements for Alloy Steel Tubes.	Common requirements for ASTM tubular specifications.
ASTM A 511	Seamless Stainless Steel Mechanical Tubing.	27 grades are covered for mechanical applications. Primarily round tubing.
ASTM A 530 ASME SA 530	General Requirements for Carbon, Ferritic Alloy, and Austenitic Alloy Steel Pipe.	Common requirements for ASTM pipe specifications as listed.
ASTM A 554	Welded Stainless Steel MechanicalTubing.	Nineteen grades are covered for mechanical applications. Rounds, squares, rectangles, and special shapes are included.
ASTM A 632	Seamless and Welded Austenitic Stainless Steel Tubing for General Service. Small Diameter.	9 grades of austenitic stainless steel tubing for general corrosion-resisting and high-temperature service.
AMS 556	Steel Tubing, Corrosion and Heat Resistant 18 Cr; 11 Ni; (Cb + Ta) (SAE 30347) Hydraulic.	Annealed type 347 hydraulic Iin6 tubing. Type 1—Seamless Type 2—Welded & Drawn
AMS 5557	Steel Tubing, Corrosion and Heat Resistant 18 Cr; 11 Ni; Ti (SAE30321) Hydraulic.	Annealed type 347 hydraulic line tubing. Type 1—Seamless Type 2—Welded & Drawn
AMS 5558	Steel Tubing, Welded, Corrosion and Heat Resistant 18 Cr; 11 Ni, (Cb + Ta) (SAE 30348) Thin Wall.	High pressure ducting, wall thickness or less. Weld bEAD controlled, X-ray.
AMS 5559	Steel Tubing, Welded, Corrosion and Heat Resistant 18 Cr, 10 Ni, Ti, (SAE 30321) Thin Wall.	High pressure ducting, wall thickness or less. Weld bead controlled, X-ray.
AMS 5560	Steel Tubing, Seamless CorrosionResistant 19 Cr; 9 Ni (SAE 30304).	Annealed type 304 aircraft hydraulic line tubing. (Not subject to high pressure). Structural.
AMS 5561	Steel Tubing, Welded and DrawnHigh Pressure Hydraulic.	For parts and assemblies such as fluid lines subject to high pressure and requiring corrosion
AMS 5562	Steel Tubing, Seamless Corrosion Resistant 21 Cr; 6 Ni; 9 Mn Annealed.	Parts and assemblies requiring both corrosion and heat resistance, and having higher strength than 18-8 types.
AMS 5565	Steel Tubing, Welded, Corrosion Resistant 19 Cr; 9 Ni (SAE 30304).	Annealed type 304 aircraft hydraulic line tubing. (Not subject to high pressure). Structural.
AMS 5566	Steel Tubing, Seamless or Welded Corrosion Resistant 19 Cr; 10 Ni (SAE 30304) High Pressure Hydraulic.	Cold drawn type 304, high pressure, aircraftType 1 SeamlessType 2—Welded Drawn
AMS 5567	Steel Tubing, Seamless or Welded Corrosion Resistant 19 Cr; 10 Ni (SAE 30304) Hydraulic, Solution Treated.	Fluid lines subject to medium high pressures requiring corrosion resistance. Annealed.(1) Seamless (2) Welded & Drawn
AMS 5570	Steel Tubing, Seamless Corrosion and Heat Resistant 18 Cr; 10 Ni; Ti tSAE 30321). Annealed Structural.	Parts and assemblies requiring both corrosion and heat resistance especially when such partsare welded during fabrication. Requiring oxidation resistance up to approximately 1500°F., but useful at that temperature only when stresses are low.
AMS 5571	Steel Tubing, Seamless Corrosion andHeai Resistant 18 Cr; 11 Ni; (Cb + Ta)‹SAE 30347). Annealed Structural.	Parts and assemblies requiring both corrosion and heat resistance especially when such parts are welded during fabrication. Requiring oxidation resistance up to approximately 1500°F., but useful at that temperature only when stresses are low.
AMS 5572	Steel Tubing, Seamless Corrosion and Heat Resistant 25 Cr; 20 Ni (SAE 30310). Annealed Structural.	Parts and assemblies requiring both corrosion and heat resistance especially when welded during fabrication. Requiring oxidation resistance up to approximately 2000°F., but useful at that temperature only when stresses are low.
AMS 5573	Seamless Type 316 Annealed Structural.	Parts & assemblies requiring both corrosion and heat resistance up to 1600ºF.
AMS 5574	Seamless Type 309S Annealed Structural.	Parts & assemblies requiring both cofrosion and heat resistance up to 2000°F., especially welded assemblies.
AMS 5575	Steel Tubing, Seamless Corrosion and Heat Resistant 16 Cr; 11 Ni; (Cb + Ta) (SAE 30347). Annealed Structural.	Parts and assemblies requiring both corrosion and heat resistance espec[ially when such parts are welded during fabrication. Requiring oxidation resistance up to approximately 1500ºF., but useful at that temperature only when stresses are low.
AMS 5576	Steel Tubing, Welded, Corrosion and Heat Resistant 18 Cr; 10 Ni; Ti (SAE 30321). Annealed Structural.	Parts and assemblies requiring both corrosion and heat resistance especially when such parts are welded during fabrication. Requiring oxidation resistance up to approximately 1500°F., but useful at that temperature only when stresses are low.
A EBS 5577	Steel Tubing, Welded, Corrosion and Heat Resistant 25 Cr; 20 Ni; (SAE 30310). Annealed Structural.	Parts and assemblies requiring both corrosion and heat resistance especially when welded during fabrication. Requiring oxidation resistance up to approximately 2000°F., but useful at that temperature only when stresses are low.
AMS 5639	Seamless Type 304	Cold Finished Mechanical Tube Rockwell 90B max Hardness Corrosion Embrittlement Capability
AMS 5645	Seamless Type 321	Cold Finished Mechanical Tube Rockwell 90B max Hardness Corrosion Embrittlement Capability
AMS 5646	Seamless Type 347	Cold Finished Mechanical Tube Rockwell 90B max Hardness Corrosion Embrittlement Capability
AMS 5647	Seamless Type 304L	Cold Finished Mechanical Tube Rockwell 90B maxHardness Corrosion Embrittlement Capability
AMS 5648	Seamless Type 316	Cold Finished Mechanical Tube Rockwell 90B max Hardness
MIL-T-5695	Tubing, Steel, Corrosion Resistant(304),Cold Drawn (1/2 or 1/4 hard Smls or W & D.	Intended for use in fabrication of aircraft structural part requiring a high fegree of resisitance to corrosion.
MIL-T-6737 (T 321)	Tubing, Steel, Corrosion and Heat Resistant (18-8 Stabilized), Welded. Annealed.	Type 321 and 347 tubing intended use in the manufacture of exhaust stacks, manifolds, blast tubes, ring collector and similar applications where a weldable corrosion and heat resisting steel is required or for use at 800º – 1500°F.
MIL-T-6845 (T 304)	Tubing, Steel, Corrosion Resistant 304) Aerospace Vehicle Hydraulic ³/ Hard, Seamless, Weldsd Drawn.	Intended for use in high pressdre hydraulic and pneumatic systems in which corrosion resistant materials are required. The tubing is not suitable for use in applications assembled by weldin or brazing or exposed to temperatures higher 800°F., because of impaired resistance to corrosion, where subsequent anneal not possible.
MIL-T-8504 (T 304)	Tubing, Steel, Corrosion Resistant 18-8) Annealed, Aircraft Hydraulic Seamless, Welded.	Intended for use in high pressure hydraulic and pneumatic systems in which corrosion resistant materials are required. This tubing is of lower strength and higher ductility than tubin Speci- fication MIL-T-6845. May be used to MIL-T-6845 tubing but heavier wall thicknesses must be used. Same qualifications regarding welding, brazing & temperature.
MIL-T-8506 (T 304)	Tubing, Steel, Corrosion Resistant (304) Annealed. Seamless, Welded.	Intended for use in the fabrication of aircraft parts requiring a high degree of resistance to corrosion. Not to be used in high pressure hydraulic control systems.
MIL-T-8606 (T 304L) (T 321) (T 347)	Tubin , steel, Corrosion Resistant 18-8 Annealed. Welded & Drawn.	Intended for use in applications which require a high degree of resistance to corrosion or to temperatures in the range of 800°F.—1500°F., or in applications which involve welding. Suitable for use In tank-automotive equipment for hydraulic and mechanical applications.
MIL-T-8808 (T 321) (T 347)	Tubing, Steel, Corrosion Resistant (18-8 Stabilized), Aircraft Hydraulic Quality. Annealed. Seamless, Welded & Drawn.	Intended for use in high hydraulic and pneumatic systems where and heat resistance are required and in which welding or brazing may be involved during fabrication. Resists oxidation at temperatures to 1200°F., but is useful at that temperature only when stresses are low.
MIL-T-8973 (T304L) (T 316L) (T 321) (T 347)	Tubing, Steel, Corrosion Resistant, Aerospace Vehicle Hydraulic System. ³/ Hard. Seamless, Welded & Drawn.	Intended for use in high pressure hydraulic and pneumatic systems corrosion and heat resistance are required and in which welding or brazing may be involved during fabrication. Suitable for use in temperatures to 1200°F., when stresses are low.
MIL-P•1144 (T 304) (T 304L) (T 316) (T 316L) (T-321) (T 347)	Pipe, Stainless Steel, (Corrosion Resisting). Seamless or Welded. Annealed.	Pipe is intended for high-temperature and hy- draulic or other pressure service under general corrosive conditions.

Stainless steel tube data

Chemical Composition

AISITYPE	CHEMISTRY-PERCENT								TYPICAL CHARACTERISTICS
AISITYPE	C	Mn	P	S	SI	– CR	NI	OTHER	TYPICAL CHARACTERISTICS
304	0.08 max	2 max	0.04 max	0.03 max	0.075 max	18.00 20.00	8.00 11.00	–	General purpose “300” series grade for tubing applications.
304L	0.035 max	2 .00 max	0.04 max	0.03 max	0.75 max	18.00 20.00	8.00 13.00	–	Low carbon type 304 where greater resistance to carbide precipitation is desired.
304H	0.04 0.1	2 max	0.04 max	0.03 max	0.75 max	18.00 20	8.00 11	–	Carbon modified for improved high temperature strength.
310	0.15 max	2 max	0.04 max	0.03 max	0.75 max	24.00 26	19.00 22	–	High resistance to scaling and oxida-tion up to 2000°F.
316	008 max	2.00 max	0.040 max	0.030 max	0.75 max	16.00 18.00	11.00 4.00	Mo2.00- 3.00	Better corrosion resistance than type 304 in reducing media. Good hi-temp strength.
316L	0.035 max	2 max	0.04 max	0.03 max	0.75 max	16.00 18	10.00 15	Mo 2.00 3.00	Low carbon type 316 where greater resistance to carbide precipitation is desired.
316H	0_04 0.10	I 2.00 max	0040 max	0.030 max	0.75 max	16.00 18.00	11.00 14.00	Mo2.00-3.00	Carbon modified for improved temperature strength.
317	0.08 Max	2 max	0.04 max	0.03 max	0.75 max	18.00 20	11.00 14	Mo 3.00 4.00	Similar to type 316 but with better corrosion resistance and creep strength.
321	0.48 max	203 max	0.04 max	0.03 max	0.75 max	17.00 20	9.00 13	Ti 5XC-0.60	Titanium stabilized against carbide precipitation. Similar properties to type 304.
347	0.08 max	200 max	0.04 max	0.03 max	0.75 max	17.00 20	7.00 13	Cb + Ta 10XC-1.00	Columbium and tantalum stabilized against carbide precipitation.
21-6-9	0.04 max	8.00 max	60 max	0.03 max	1 max	19.00 21.5	5.50 7.5	N 0.15 0.40	High strength-to-weight ratio. Good corrosion resistance.
416	0.15 Max	1.25 max	0.066 max	0.15 max	1.00 max	12.00 14.00	—	—	Hardenable by heat treatment. Free machining. Moderate corrosion resistance.

Mechanical properties

TYPE	ITEMPER	NOMINAL MECHANICAL PROPERTIES
TYPE	ITEMPER	TENSILE PSI	YIELD PSI	ELONG. % IN 2″	ROCKWELL HARDNESS
304,	Annealed I 1/8 Hard	85000 105000	35000 75000	55 20	RB80 RB95
304L	Annealed 1/8 Hard	80000 105000	30000 75000	55 20	RB75 RB95
304H	Annealed	85,000	35,000	55	RB80
310	Annealed	95,000	45,000	45	RB85
316 316L 316H	Annealed Annealed Annealed	85000 80000 85000	35000 30000 35000	50 50 50	RB80 RB75 RB80
317	Annealed	90,000	40,000	45	RB85
321	Annealed 1/8 Hard	90,000 105000	35000 75000	55 20	RB80 RB95
347	Annealed	95,000	40,000	50	RB85
21-6-9	Annealed 1/8 Hard	100000 142000	60000 120000	45 20	RB9,0 RC30.
416	Annealed	75,000	35,000	20	RB95

The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described here in are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either expressions or implied , of fitness for these or other purposes.