Guangzhou Changfeng Steel Co., LTD
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1.2083/ 420 / S136 / 4Cr13 Stainless Steel Tool Bar of Special Steel
1.2083 mould steel is a kind of plastic mould steel with high chromium element which is up to 13%.1.2083mould steel has good wear resistance and good polishing, it widely used for acid proof plastic mold.
Available size(mm):
| Flat Bar Size(mm) | Round Bar Size(mm) | |||
| Thickness | Width | Length | Diameter | Length |
| 12-300 | 800-2000 | 2000-6000 | 15-300 | 3000-6000 |
1,Grade | DIN 1.2083 AISI 420 JIS SUS420J2 |
2,Feature | Excellent corrosion resistance;Excellent abrasion resistance and elasticity |
| Excellent high-temperature abrasion resistance | |
| Medium toughness,dimensionally stable,high compressive strength | |
3,Application | Highly stressed cutting and punching tools for thin sheets |
| Stone processing tools and knives for paper and plastics,shear knives | |
| Chemical Resistance plastic mold,Corrosion of thermoplastic plastics |
4,Hardness after tempering :
| Tempering | 100°C | 200°C | 300°C | 400°C |
| HRC | 54 | 52 | 52 | 52 |
5,Chemical composition (%)
| Grade | delivery hardnessºC | C | Si | P | S | Cr | Ni | Mo | Mn |
| 420 | HRC32-36 | 0.4 | 0.8 | ≤0.03 | ≤0.03 | 13.5 | ~ | 0.6 | 0.5 |
| 4Cr13 | HB≤201 | 0.36-0.48 | ≤0.6 | ≤0.035 | ≤0.03 | 12-14 | ≤0.6 | ~ | ≤0.8 |
| 1.2083 | HB≤235 | 0.26-0.35 | ≤0.6 | ≤0.03 | ≤0.03 | 12.5-14 | ≤0.5 | ~ | ≤0.8 |
| S136 | HB≤235 | 0.38 | 0.8 | ≤0.03 | ≤0.03 | 13.6 | ~ | ~ | 0.5 |
6,Package: We provide standard export packing or according to customers' request.
7,Delivery: For abundant stock, 7-15 days.For customized products, 30-50 days.
8,Heat Treatment:
| Annealing : | 810 - 830 °C |
| Hardness after annealing : | Max.230 HB |
| Stress relieving: | Approx.650 °C |
| Hot forming: | 1050 - 850 °C |
| Hardening: | 970 - 990 °C |
| Quenching media: | Oil, Vacuum |
| Hardness after quenching: | 52 - 56 HRC |
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