24 July 2021 Mould Steel Bar
6Cr5MnSi Mould Steel Bar
6CrW2Si is originally made of GB standard steel, belongs to cold work die steel, its characteristics are similar to the United States imported S1 die steel, but the characteristics are slightly inferior to the import S1.
6CrW2Si has a higher quenching hardness and a certain high-temperature strength than 4CrW2Si and 5CrW2Si, but has a higher toughness in the tempered state.
6CrW2Si die steel is generally used to manufacture tools that are subjected to impact loads and require high wear resistance, such as pneumatic tools, chisels and impact dies, cold shear blades, and impact die slicing dies.
Materials made of 6Cr5MnSi standard chemical composition and hardness, density, heat treatment, application, etc. Overview:
China mould steel - 6Cr5MnSi
Impact cold work die steel
Similar to the national brands in China
6CrW2Si United States
S1 Germany
60WCrV7
chemical composition
(%) Standard C Mn Si Cr W Mo V Cu P S
GB / T1299-2000 0.55 ~ 0.65 ≤0.40 0.50 ~ 0.80 1.10 ~ 1.30 2.20 ~ 2.70 ≤0.030 ≤0.030
Features · 6CrW2Si has a higher quenching hardness than 4CrW2Si, 5CrW2Si and a certain high temperature strength, and in the tempering state has a higher toughness
Application · It is usually used to make tools that bear the impact load and require high wear resistance, such as pneumatic tools, chisels and impact molds, cold shear blades, die for impact machine
Critical point (° C) Ac1: 775; Ac3: 810 Ms: 280
Hot
Department
Reason · Pre-heat treatment, that is, annealing: 820 ± 10 ℃ Burn evenly, ≤ 30 ℃ / h Controlled cooling to 550 ℃ baked air-cooled
Quenching: 860 ~ 900 ℃ oil cooling, HRC ≥ 57,
Tempering: to eliminate stress Stable tissue 200 ~ 250 ℃ air cooling, HRC53 ~ 58
To eliminate stress and reduce the hardness of 430 ~ 470 ℃ air cooling, HRC45 ~ 48
Forging φ □ 100-300.
· Flat steel 10-90 × 100-310, length according to customer requirements.
Factory condition annealing HB ≤ 235,