Sheet, strip 20x17n2 - 1.4057 - aisi 431

International Equivalent

Mark Analogue W. Nr. Aisi Uns En Order
20KH17N2 EI407 1.4057 431 X20CrNi17-2 Delivery from the stock, in stock

AISI 431 grade.

This stainless corrosion-resistant steel is designed for heavy-duty high-strength parts used for abrasion and impact loads in mildly aggressive environments. It is used in chemical industry, electrical engineering, automotive industry and has high strength, durability, corrosion resistance.

Percentage composition

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

Mechanical characteristics of AISI 431 steel at 20 °C

Range mm - MPa MPa % % kJ/m2 -
- Size e.g. s in sT d5 y KCU Heat treatment.
Forgings 813 666 12 30 500
AISI 431 alloy condition Yield strength (MPa) Tensile strength Elongation at break
20°С 100°С 200°С 300°С
Annealed 520 495 460
¼ hard 1000 1570 MPa 3%
Hardened ≤1200 1400 MPa 6%

Marking of physical properties:

Description Designation
- Alloy data acquisition temperature [degrees] - T
- Modulus of elasticity of the 1st kind, [MPa] - E
- Coefficient of thermal linear expansion (at 20°C), [1/Grad] -a
- Specific electrical resistance [Ohm-m] -R -R
- Specific gravity [g/cm3] -r -r
- Heat transfer coefficient [W/(m-grad)] -l -l
- Specific heat capacity (at 20°C), [J/(kg-grad) -C
Marking of mechanical properties:
- Limit of proportionality (yield strength for permanent deformation) [MPa] sT
- Short-time strength [MPa] sT
- Ratio constriction [ % ] y
- Tensile elongation [ % ] d5
- Brinell hardness, in [MPa] HB
- Impact toughness [kJ/m2] KCU

Weldability:

Designation Description
limited weldable - Must be preheated to 100-120°C with subsequent heat treatment
no restrictions - No need for preheating and final heat treatment
Difficult to weld - need preheating to 200-300 ° C with the final heat treatment

Buy at best price

Evek GmbH stocks a wide range of AISI 431 steel products. Our representative offices are located. You can make a purchase without leaving your office, through the Company's website. The popularity of products of AISI 431 brand is explained by a variety of assortment and low cost. All products are of the highest quality. Technological completeness of each stage of production makes it possible for us to fulfill individual orders in case you are not satisfied with the basic execution of the product. We carry out high quality individual orders of non-standard parameters, the timing of their implementation is minimal. Wholesale customers are offered discounts.