Chromium-molybdenum cast steel is widely used in industrial fields with relatively high mechanical properties. The addition of molybdenum to chromium steel can increase the strength of steel castings without having a significant impact on the impact toughness of cast steel. Moreover, chromium-molybdenum cast steel has very good high temperature performance and creep resistance. After quenching and tempering or normalizing heat treatment, chromium-molybdenum cast steel can obtain excellent mechanical properties.
Molybdenum can improve the hardenability of cast steel and reduce the temper brittleness of cast steel. Chromium-molybdenum cast steel is used for large-section castings and steel castings that require deep hardening.
| Chemical Composition of Chrome Molybdenum Cast Steel | ||||||
| Steel Grade | C (%) | Si (%) | Mn (%) | Cr (%) | Mo (%) | P、S (%) |
| ZG20CrMo | 0.17-0.25 | 0.20-0.45 | 0.50-0.80 | 0.50-0.80 | 0.40-0.60 | ≤0.035 |
| ZG35CrMo | 0.30-0.37 | 0.30-0.50 | 0.50-0.80 | 0.80-1.20 | 0.20-0.30 | ≤0.035 |
| ZG40CrMo | 0.35-0.45 | 0.17-0.45 | 0.50-0.80 | 0.80-1.10 | 0.20-0.30 | ≤0.04 |
| ZG20Cr5Mo | 0.15-0.25 | ≤0.50 | ≤0.60 | 4.00-6.00 | 0.50-0.65 | ≤0.04 |
| ZG17CrMo | 0.15-0.20 | 0.30-0.60 | 0.50-0.80 | 1.20-1.50 | 0.45-0.55 | ≤0.04 |
Post time: Feb-19-2021