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420J2
DSM
420
SUS 420J2
knife,blade,
Tensile strength is the main performance of the material after quenching. Generally, the tensile strength of 420J2 after quenching can reach more than 1400, and the unquenched material is about 900.
The anti-rust performance of martensitic steel after quenching is better than that of unquenched materials, mainly because after the carbon chromium decomposes, the carbon dissolves in the matrix, and the chromium element strengthens the anti-rust properties. Chromium is an element that plays a decisive role in rust prevention in 400 series stainless steel. Due to the presence of carbon chromium compounds before quenching, the actual chromium element that is responsible for rust prevention is about 2% lower than the actual content. After quenching, the chromium element content can increase by 1%. above.
| DESCRIPTION | 420J2 grades are hardenable martensitic stainless steel used for cutlery, pump bushings and valves | ||||||||
| CHEMICAL COMPOSITION | Grade | C2 | Si | Mn | P | S | Cr | Ni | 列1 |
| 420J1 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 12.0-14.0 | ≤0.6 | |||
| 420J2 | 0.26-0.40 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 12.0-14.0 | ≤0.6 | ||
| APPLICATIONS | Cutlery / Pump Valves/ Bushings / Screw-drivers | ||||||||
| MECHANICAL PROPERTIES AFTER COLD ROLLING AND FINAL ANNEALING | Rp0.2 | > 520 | > 540 | ||||||
| Rm | > 225 | > 225 | |||||||
| Elongation | > 18 % | > 18 % | |||||||
| Hardness | < 97 B | < 99 B | |||||||
| CORROSION RESISTANCE | This grade has moderate corrosion resistance to atmosphere, fresh water, mild acids present in fruit juices and milk like lactic, tartaric, citric acids, mild alkalis etc. The corrosion resistance is best in hardened and tempered conditions. | ||||||||
Tensile strength is the main performance of the material after quenching. Generally, the tensile strength of 420J2 after quenching can reach more than 1400, and the unquenched material is about 900.
The anti-rust performance of martensitic steel after quenching is better than that of unquenched materials, mainly because after the carbon chromium decomposes, the carbon dissolves in the matrix, and the chromium element strengthens the anti-rust properties. Chromium is an element that plays a decisive role in rust prevention in 400 series stainless steel. Due to the presence of carbon chromium compounds before quenching, the actual chromium element that is responsible for rust prevention is about 2% lower than the actual content. After quenching, the chromium element content can increase by 1%. above.
| DESCRIPTION | 420J2 grades are hardenable martensitic stainless steel used for cutlery, pump bushings and valves | ||||||||
| CHEMICAL COMPOSITION | Grade | C2 | Si | Mn | P | S | Cr | Ni | 列1 |
| 420J1 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 12.0-14.0 | ≤0.6 | |||
| 420J2 | 0.26-0.40 | ≤1.00 | ≤1.00 | ≤0.040 | ≤0.030 | 12.0-14.0 | ≤0.6 | ||
| APPLICATIONS | Cutlery / Pump Valves/ Bushings / Screw-drivers | ||||||||
| MECHANICAL PROPERTIES AFTER COLD ROLLING AND FINAL ANNEALING | Rp0.2 | > 520 | > 540 | ||||||
| Rm | > 225 | > 225 | |||||||
| Elongation | > 18 % | > 18 % | |||||||
| Hardness | < 97 B | < 99 B | |||||||
| CORROSION RESISTANCE | This grade has moderate corrosion resistance to atmosphere, fresh water, mild acids present in fruit juices and milk like lactic, tartaric, citric acids, mild alkalis etc. The corrosion resistance is best in hardened and tempered conditions. | ||||||||
