SUS420J2(A)/SUS420J2(H)
| Characteristics Corrosion Resistance Applications Chemical Composition Mechanical properties International Standard Comparision Chart Stock Form And Sizes Cold Finished Round Bars |
Peeled Round Bars |
Characteristics
SUS420J2 is a martensitic stainless steel, and high strength and hardness can be obtained by subjecting it to heat treatment (quenching and tempering).
It becomes harder than SUS420J1 after quenching.
Although its corrosion resistance is better than general hardened steels, it is inferior to austenitic stainless steels, ferritic stainless steels, and precipitation hardening stainless steels because its carbon (C) content is higher.
Stock Form and Sizes
◆1000mm ◎2000mm ▲3000mm ■3500mm ●4000mm ★2500mm～3990mm
SUS420J2(A) Cold finished round barsSpecification：JIS G4318
| Size 2〜8 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 2.5 | 3 | 3.5 | 4 | 4.4 | 5 | 5.3 | 5.5 | 6 | 6.35 | 7 | 7.1 | 8 | 8.4 |
| ◎ | ◎ | ◎ | ◎ | ◎ | ● | |||||||||
| Size 8〜15 | ||||||||||||||
| 8.95 | 9 | 9.52 | 10 | 10.8 | 11 | 11.3 | 12 | 12.7 | 13 | 14 | 14.3 | 14.6 | 15 | 15.87 |
| ● | ● | ● | ● | ● | ||||||||||
| Size 16〜24 | ||||||||||||||
| 16 | 16.3 | 17 | 17.3 | 18 | 18.3 | 19 | 20 | 20.3 | 21 | 22 | 22.2 | 23 | 23.3 | 24 |
| ● | ● | ● | ● | ● | ||||||||||
| Size 25〜42 | ||||||||||||||
| 25 | 26 | 27 | 27.62 | 28 | 30 | 30.6 | 32 | 33 | 33.3 | 34 | 35 | 36 | 38 | 40 |
| Size 45～50 | ||||||||||||||
| 42 | 45 | 48 | 50 | |||||||||||
SUS420J2(H) Peeled round barsSpecification：JIS G4303
| Size 5〜24 | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5 | 6 | 8 | 10 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 22 | 24 |
| ● | ● | ● | ● | ● | ||||||||||
| Size 25〜46 | ||||||||||||||
| 25 | 26 | 27 | 28 | 30 | 32 | 33 | 35 | 36 | 38 | 40 | 42 | 44 | 45 | 46 |
| ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | |||||
| Size 48〜130 | ||||||||||||||
| 48 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 110 | 120 | 130 |
| ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ★ | ★ | ★ |
| Size 140〜350 | ||||||||||||||
| 140 | 150 | 160 | 170 | 180 | 190 | 200 | 210 | 230 | 250 | 280 | 300 | 330 | 350 | |
| ★ | ★ | ★ | ★ | ★ | ★ | ★ | ||||||||
Chemical composition
| Ni | Cr | Fe | C | Mn | Si | Co | P | S | Mo | Cu | N | Nb | Ta | Nb+Ta | W | V | other | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| min | 12.00 | 0.26 | ||||||||||||||||
| max | (0.60) | 14.00 | 0.4 | 1.00 | 1.00 | 0.040 | 0.030 |
( )% max may be added
※Above is standard values of JIS G4303. For further information, please contact us.
Mechanical properties
Soft Annealed
| Tensile Strength N/mm² | 0.2% Yield Strength N/mm² | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | |||||
| max | HB235 |
Quench and Tempered
| Tensile Strength N/mm² | 0.2% Yield Strength N/mm² | Elongation ％ | Reduction of Area ％ | Hardness | |
|---|---|---|---|---|---|
| min | 740 | 540 | 12 | 40 | HB217 |
| max |
※Above is standard values of JIS G4303. For further information, please contact us.
International Specification Comparison chart
| Material | Round bars | Plates/Sheets | Pipes/Tubes | ||
|---|---|---|---|---|---|
| Seamless | Welded | ||||
| JIS | SUS420J2 | G4303/G4318 | G4304/G4305 | ||
| ASTM | S42000 | A182/A276/A479 | A240 | ||
| ASME | S42000 | SA182/SA276/SA479 | SA240 | ||
| DIN/EN | 1.4021 | ||||
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