Stainless Steel Grade 420J2 - High Hardness Tool Grade
Feb 05, 2026
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Standards and Equivalent Grades
| UNS | EN | ASTM | DIN | GOST | GB |
|---|---|---|---|---|---|
|
SUS420J2 |
1.4034 |
Type 420 (High-C) |
X46Cr13 |
40Х13 |
4Cr13 |
Chemical Composition
| Grade | Standard | C | Cr | Ni | Mn | Si | P | S | Fe |
|---|---|---|---|---|---|---|---|---|---|
|
420J2 |
JIS G 4303 |
0.26–0.40 |
12.0–14.0 |
≤1.0 |
≤1.0 |
≤1.0 |
≤0.04 |
≤0.03 |
Balance |
|
1.4034 |
EN 10088-2 |
0.43–0.50 |
12.5–14.5 |
≤1.0 |
≤1.0 |
≤1.0 |
≤0.04 |
≤0.03 |
Balance |
|
4Cr13 |
GB/T 1220 |
0.36–0.45 |
12.5–14.5 |
- |
- |
≤1.0 |
≤0.04 |
≤0.03 |
Balance |
Mechanical Properties of 420J2
| Grade | Standard | Tensile Strength | Yield Strength | Elongation | Hardness (Brinell) |
|---|---|---|---|---|---|
|
SUS420J2 |
JIS G 4303 |
≥ 740 MPa |
≥ 300 MPa |
≥ 15 % |
≤ 217 HBW (annealed) |
|
1.4034 |
EN 10088-2 |
≥ 750 MPa |
≥ 300 MPa |
≥ 12 % |
≤ 217 HBW |
|
4Cr13 |
GB/T 1220 |
≥ 750 MPa |
≥ 300 MPa |
≥ 12 % |
≤ 217 HBW |
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