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410 Stainless Steel

410/HT Stainless Steel plate

Type 410 is a martensitic stainless steel which is magnetic, resists corrosion in mild environents and has fairly good ductility.

410 pipe is used where abrasion and wear resistance is needed, combined with fair resistance to general corrosion and oxidation.

Specifications – Stainless Steel 410

Chemical composition of 410 stainless steel

UNS NoS41000
EN1.4006
AISI410
Carbon (C)0.08/0.15
Silicon (Si)1
Manganese (Mn)1.5
Phosphorus (P)0.04
Sulphur (S)0.03
Chromium (Cr)11.5/13.5
Molybdenum (Mo)
Nickel (Ni)0.75
Nitrogen (N)
410 stainless steel provides good corrosion resistance as well as high strength and hardness. It is magnetic in both the annealed and hardened conditions. Grade 410 stainless steel is a hardenable, martensitic stainless steel that features a minimum addition of 11.5% chromium.
Design Features – Stainless Steel 410

Mechanical properties of 410 stainless steel

DESCRIPTIONTYPE 410
Proof Stress 0.2% (MPa)205
Tensile strength (MPa)450
Elongation A5 (%)20
HardnessHB: 217
HRB: 96
Alloy 410 (AMS 5504) is magnetic in both the annealed and hardened conditions.

Chemical composition of 410 HT stainless steel

UNS NoS41000
EN1.4006
AISI410
Carbon (C)0.15
Silicon (Si)1.0
Manganese (Mn)1.0
Phosphorus (P)0.04
Sulphur (S)0.03
Chromium (Cr)11.5/13.5
Molybdenum (Mo)
Nickel (Ni)0.5
Nitrogen (N)

Mechanical properties of 410/HT stainless steel

DESCRIPTIONTYPE 410
Proof Stress 0.2% (MPa)205
Tensile strength (MPa)450
Elongation A5 (%)20
HardnessHB: 217
HRB: 96
Alloy 410 (AMS 5504) is magnetic in both the annealed and hardened conditions.

Typical Mechanical Properties- Stainless Steel 410

MaterialTempering Temp °C (°F)0.2 % Yield Strength (Mpa)Ultimate Tensile Strength (Mpa)% Elongation in 2"% Reduction of AreaCharpy V Notch Impact Strength (J)Hardness Brinell
Alloy 410 Bar260 (500)10891331176276401
Hardened 1850°F (1010°C) 30 mins, oil quench, tempered 4 Hrs
Alloy 410 Bar317 (700)10691296176066401
Hardened 1850°F (1010°C) 30 mins, oil quench, tempered 4 Hrs
Alloy 410 Bar482 (900)10141303185838401
Hardened 1850°F (1010°C) 30 mins, oil quench, tempered 4 Hrs
Alloy 410 Bar538 (1000)917965196233285
Hardened 1850°F (1010°C) 30 mins, oil quench, tempered 4 Hrs
Alloy 410 Bar593 (1100)724827206352248
Hardened 1850°F (1010°C) 30 mins, oil quench, tempered 4 Hrs
Alloy 410 Bar649 (1200)6347312165119223
Typical Applications – Stainless Steel 410

Grade 410 stainless steels find applications in the following:

Tensile Requirements – Stainless Steel 410

Possible alternative grades

The table below provides the suitable alternative grades to 410 stainless steels:
GradeReasons for choosing the grade
416High machinability is required, and the lower corrosion resistance of 416 is acceptable.
420A higher hardened strength or hardness than can be obtained from 410 is needed.
440CA higher hardened strength or hardness than can be obtained even from 420 is needed.

Corrosion Resistance

Grade 410 stainless steels are resistant to hot gases, steam, food, mild acids and alkalies, fresh water and dry air. These steels obtain maximum corrosion and heat resistance through hardening. However, grade 410 steels are less corrosion resistant than austenitic grades and grade 430 ferritic alloys containing 17% chromium. Smooth surface finish offers improved performance of steels.

Heat Resistance

Grade 410 steels have good scaling resistance at temperatures of up to 650 °C. However, the mechanical properties of the material will tend to reduce at temperatures ranging from 400 to 580 °C.

Heat Treatment

Annealing – Grade 410 steels can be fully annealed at temperatures from 815 to 900 °C, followed by slow furnace cooling and air-cooling. Process annealing of grade 410 steels can be carried out at temperatures ranging from 650 to 760 °C and air-cooled.

Hardening – Hardening of grade 410 steels can be performed at 925 to 1010 °C, followed by air and oil quenching. Heavy sections of grade 410 need to be oil quenched. Tempering, to enhance the mechanical properties and hardness of grade 410 steels, follows this process. It is not recommended to perform tempering at temperatures from 400 to 580 °C.

Welding

Grade 410 steels can be welded using all conventional welding techniques, but the materials should pre-heated at 150 to 260 °C followed by post-weld annealing treatment, to mitigate cracking. Grade 410 welding rods are recommended for tempering and post-hardening. In the “as welded” conditions, grade 309 filler rods can be used to achieve a ductile joint.

According to AS 1554.6 standards, grade 309 electrodes or rods are preferred for welding 410 steels.

Machining

Grade 410 steels can be easily machined in highly tempered or annealed conditions. However, it is hard to machine grade 410 steels if they are hardened above 30HRC. Free machining grade 416 is the best alternative.

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