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Sheet, strip 20kh17n2 - 1.4057 - aisi 431

Sheet, strip 20kh17n2 - 1.4057 - aisi 431

Corrosion resistant stainless steel grade AISI 431 is designed for high strength for heavy-loaded parts, which operate in slightly aggressive environments impact and abrasion. Steel products 431 is used in the automotive industry, chemical industry, electrical engineering, due to its high strength, durability and resistance to corrosion.

The chemical composition of AISI 431, in percent.

Ni P C Cr Si Mn S
1.5 — 2.5 up to 0.035 0.17 — 0.25 16 — 18 to 0.8 to 0.8 up to 0.025

Mechanical properties steel grade 431 at 20 °C.

Products mm % % MPa - kJ / m2 MPa -
Forgings   12 30 666   500 813  
- Size d5 y sT Eg. KCU blower SB Armoor.
The hardness of the material Forgings AISI 431 HB 10-1 = 248 — 293 MPa
The hardness of the material after annealing AISI 431 HB 10 -1 = 285 MPa


Physical characteristics of this brand of alloy:
— 1st kind of modulus of elasticity, [MPa] — E
— The heat capacity of the material (or the ratio of teploprovodna.), in [W/(m·deg)] -l
— The temperature required to obtain these properties, [Grad] — T
— linear coefficient. temp. extensions to [1/Deg] (temp. the interval 20°C), -a
— the specific electrical resistance, [Ohm·m] -R
— The density of this material, [kg/m3] -r
— the specific heat capacity of material [j/(kg·deg)] (temp. the interval 20°C) -C

Magnetic characteristics:

the coercive force (not more than) [A/m ] Hc
the magnetic permeability (not above) [ MH/m ] Umax
— specific losses (no higher) frequency 50 Hz, magnetic induction of 1.0 T [ W/kg ] P1.0/50
— TL — magnetic induction a magnetic field of not less than 100, in a magnetic field [ A/m ] B100
Mechanical characteristics:
— Short-term tensile strength in [MPa] blower SB
— Yield strength (limit of proportionality) for the residual strain, [MPa] sT
— at break elongation in [ % ] d5
— narrowing of the relative in [ % ] y
— the viscosity of the shock, in [ kJ / m2] KCU
— Brinell hardness [MPa] HB
weldability limited — welding is possible in the process of heating up to temp. 100−120°C and further thermal treatment
konovalivka in order to obtain quality welded joints, it is necessary to perform additional operations: during welding heating up to temp. 200−300°C, heat treatment (annealing) after welding.
Welded without any restrictions — welding is carried out without further heat treatment and pre-heating.

Buy at best price

The company «AVEK global» sells a range of products from steel AISI 431. The popularity of this type of products due high quality products, great variety and real value. Every our products undergoes strict control throughout the production chain, to guarantee absolute high quality of our steel products. Modern technologies allow to carry out individual orders for non-standard settings. The company «AVEK global» is always ready to produce quality products according to individual order.