Heat resisting steel 431
2026-09-14 16:10:14 Origin： Remark：0 Click：
ASTM A511/511M - 12 Standard specification for seamless stainless steel mechanical tubing aisi 431 Martensitic steel round bar, flat bar, plate, forgings 431 stock available, quenched and tempered
TECHNICAL DATA SHEET - MT 431
Material specifications: ASTM A511 / 511M - 12
Material category: martensitic type 16.0Cr - 2.0Ni - 0.16C iron base steel
Official test certificate: issued by TUV - SGS - CNAS
Stock available: round bar, sheet, plate, flat bar.
PRODUCT DESCRIPTION
Steel 431 is usually produced by EAF, AOD followed by electro-slag refining (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied in the annealed, peeled condition.
Final heat treatment: quenched and tempered, + SRA.
Material category: martensitic type 16.0Cr - 2.0Ni - 0.16C iron base steel
Official test certificate: issued by TUV - SGS - CNAS
Stock available: round bar, sheet, plate, flat bar.
PRODUCT DESCRIPTION
Steel 431 is usually produced by EAF, AOD followed by electro-slag refining (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
Bars are usually supplied in the annealed, peeled condition.
Final heat treatment: quenched and tempered, + SRA.
PROFILES AND DIMENSIONS
Round bar, rod, disc (diameter): 6.0 ~ 920 mm
Square bar, flat bar: 10 ~ 600 mm
Length: random length or based on the customer's special requirement.
Heavy, middle plate via hot rolled / forged: T3.0 ~ 400 X W20 ~ 1200 X L mm
Sheet steel via cold rolled: T 0.5 ~ 3 X W15 ~ 1000 X L mm
Steel strip via cold rolled: T 0.3 ~ 3.0 X W10 ~ 300 X L mm (or in coil form)
Forging piece: stepped shafts, other different shapes based on OEM.
Carbon, C (％): ≤ 0.20
Manganese, Mn (％): ≤ 1.00
Phosphorus, P (％): ≤ 0.040
Sulfur, S (％): ≤ 0.030
Sulfur, S (％): ≤ 0.030
Silicon, Si (％): ≤ 1.00
Nickel, Ni (％): 1.25 ~ 2.50
Chromium, Cr (％): 15.0 ~ 17.0
Chromium, Cr (％): 15.0 ~ 17.0
Molybdenum, Mo (％): -
Aluminum, Al (%): -
Copper, Cu (%): -
Nitrogen, N (%):
Ferrum, Fe (%): remainder.
TYPICAL MECHANICAL PROPERTIES
Heat treatment practice:
Quenching 950 ~ 1050 degree celsius, oil cooling
Tempering 600 ~ 650 degree celsius, air cooling.
Tensile strength, Rm ≥ MPa: 900 ~ 1050
Yield strength, Rp0.2 ≥ MPa: 680
Yield strength, Rp0.2 ≥ MPa: 680
Elongation, A5 ≥: 12.0
Reduction of area, Z ≥: 45.0
Hardness via heat treatment, HB: 295
Reduction of area, Z ≥: 45.0
Hardness via heat treatment, HB: 295
TECHNICAL SALES ASSISTANCE & SERVICE
20+ years focus on special steel manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
20+ years focus on special steel manufacturing and processing.
Stock over 60 grades with a competitive price, along with cutting service for specific requirement.
Customizing special material is welcome.
We closely cooperate with the professional inspection partners to strictly control the quality and improve the quality manage system, and guarantee the goods delivery each time. It is proved that we are worth of trusting and will be the strategic partner of the supplying chains in the special steels field.
Export packing / Export documents.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.
Transport by Track, Sea, Courier (FedEx, UPS, DHL) and Air Cargo.
CNC saw cutting.
Marking by stamping or printing.
Third party inspection service.
Marking by stamping or printing.
Third party inspection service.
Further, please also check the materials in stock available:
Raw material - steels of blade for steam turbine
XM-25, S45000, GD450, C450
403 ESR, GB/T 8732 type 12Cr12Mo, 10705BA/BB/BC
AISI 616, 422, 1.4935, X20CrMoWV12-1, 10705BU
B50A365B, 403Cb+, 1.4913, X19CrMoVNbN11-1
17-4PH, 630, 1.4542, X5CrNiCuNb16-4, 10705GU/GV/GW
M-152, S64152, 1.4938, X12CrNiMoV12-3, S151D
FV520B, S143, 1.4594, X4CrNiCuMo14-5
X22CrMoV12-1, 1.4923
13Х11Н2B2MФ, AE961W
15-5PH, XM-12, S15500
A286, AISI 660, S66286
10705MBU, 10705AJ
Non-magnetic steel:
1.3816, X8MnCrN18-18, 1.3818, X55MnCrN18-4
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