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Ningbo Ningshing Precision Machinery Group Co., Ltd. is DIN 1.2550 tool steel stockholders and suppliers from china. Over 25 years experience in supplying DIN 1.2550 tool steel round bar, flat bar and plate.
DIN 1.2436 / AISI D6 Cold Work Tool Steel is used to make cold and hot working tools that withstand high pressure, impact and shocks. The blade made of this steel is very durable, strong hardening ability, very suitable for heat treatment.
Round: dia.10-600 mm
Hot Rolled Plate: 10-460 x 1600-2300 mm
Forged Block: 150-500 x 200-1900 mm
| DIN / W.Nr | JIS | GB | |
| ---- | 1.2550 | G4404 | 60WCrV7 |
| Steel Grade | C | Si | Mn | P | S | Cr | W |
| 1.2550 | 0.55-0.65 | 0.70-1.00 | 0.15-0.45 | ≤ 0.030 | ≤ 0.030 | 0.9-1.20 | 1.70-2.20 |
2. dimensionally stable, impact resistant and high hardening capacity.
Annealing
720 to 750℃
Hardness after annealing: max. 230HB
Quenching
870 to 900 ℃
Quenching in oil
Tempering
180 to 300 ℃
After tempering hardness HRC | 100℃：60; After tempering hardness HRC | 200℃：58; After tempering hardness HRC | 300℃：56; After tempering hardness HRC | 400℃：52
Normailizing
Normalizing temperature then cool in furnace
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