SS 431 equivalents, chemistry & properties.
Browse reference information for SS 431, including related designations, composition, mechanical properties and density. Confirm the governing standard, product form and condition for your order.
SS 431 equivalent grades
- USA (ASTM / AISI / SAE)
- AISI 431
- UNS
- S43100
- Europe (EN)
- X17CrNi16-2
- Werkstoff No. (W.Nr)
- 1.4057
- UK (BS)
- 431S29
- Japan (JIS)
- SUS431
- China (GB)
- 14Cr17Ni2
- Russia (GOST)
- 20X17H2
Key data
- Family
- Martensitic stainless
- Density
- 7.7 g/cm³
- Typical mechanical
- Hardened and tempered, high strength
- Typical uses
- Pump shafts, propeller shafts, aircraft fittings
- Weight
- Calculate weight in SS 431
SS 431 chemical composition (weight %)
| C | Si | Mn | P | S | Cr | Ni |
|---|---|---|---|---|---|---|
| ≤0.20 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 15.0–17.0 | 1.25–2.50 |
Grades similar to SS 431
Frequently asked questions
What is the equivalent of SS 431?
SS 431 equivalents: USA (ASTM / AISI / SAE) AISI 431; UNS S43100; Europe (EN) X17CrNi16-2; Werkstoff No. (W.Nr) 1.4057; UK (BS) 431S29; Japan (JIS) SUS431; China (GB) 14Cr17Ni2; Russia (GOST) 20X17H2. Equivalents are close but not always identical; check the standard on your order.
What is the chemical composition of SS 431?
SS 431: C ≤0.20, Si ≤1.00, Mn ≤1.00, P ≤0.040, S ≤0.030, Cr 15.0–17.0, Ni 1.25–2.50 (weight %).
What is the density of SS 431?
About 7.7 g/cm³ (7,700 kg/m³), the value used for weight calculations.
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Mill test certificate (EN 10204 3.1) supplied with material; third-party inspection on request.
Need SS 431?
Steel Impex India, Mumbai, supplies SS 431 in pipes, plates, sheets, bars and fittings as available. Send the grade, standard, size and quantity.