SS 420 equivalents, chemistry & properties.
Browse reference information for SS 420, including related designations, composition, mechanical properties and density. Confirm the governing standard, product form and condition for your order.
SS 420 equivalent grades
- India (IS)
- X20Cr13 / X30Cr13 (IS 6911)
- USA (ASTM / AISI / SAE)
- AISI 420
- UNS
- S42000
- Europe (EN)
- X20Cr13 / X30Cr13
- Werkstoff No. (W.Nr)
- 1.4021 / 1.4028
- UK (BS)
- 420S29 / 420S37
- Japan (JIS)
- SUS420J1 / SUS420J2
- China (GB)
- 20Cr13 / 30Cr13 (2Cr13 / 3Cr13)
- Russia (GOST)
- 20X13 / 30X13
Key data
- Family
- Martensitic stainless
- Density
- 7.74 g/cm³
- Typical mechanical
- Hardened up to about 50 HRC
- Typical uses
- Cutlery, surgical tools, moulds, shafts
- Weight
- Calculate weight in SS 420
SS 420 chemical composition (weight %)
ASTM A276 / A479 (bar)
| C | Si | Mn | P | S | Cr |
|---|---|---|---|---|---|
| ≥0.15 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 12.0–14.0 |
ASTM A240 S42000 (plate, sheet, strip)
| C | Si | Mn | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|
| ≥0.15 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 12.0–14.0 | ≤0.75 | ≤0.50 |
Grades similar to SS 420
Frequently asked questions
What is the equivalent of SS 420?
SS 420 equivalents: India (IS) X20Cr13 / X30Cr13 (IS 6911); USA (ASTM / AISI / SAE) AISI 420; UNS S42000; Europe (EN) X20Cr13 / X30Cr13; Werkstoff No. (W.Nr) 1.4021 / 1.4028; UK (BS) 420S29 / 420S37; Japan (JIS) SUS420J1 / SUS420J2; China (GB) 20Cr13 / 30Cr13 (2Cr13 / 3Cr13); Russia (GOST) 20X13 / 30X13. Equivalents are close but not always identical; check the standard on your order.
What is the chemical composition of SS 420?
SS 420 (ASTM A276 / A479 (bar)): C ≥0.15, Si ≤1.00, Mn ≤1.00, P ≤0.040, S ≤0.030, Cr 12.0–14.0 (weight %).
What is the density of SS 420?
About 7.74 g/cm³ (7,740 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 420?
Steel Impex India, Mumbai, supplies SS 420 in pipes, plates, sheets, bars and fittings as available. Send the grade, standard, size and quantity.