Cr25Ni20: 0.20%-0.30% carbon content, 24%-26% chromium content, 19%-22% nickel content, austenitic heat-resistant alloy, applicable to 1000-1200℃ heat treatment processes; Cr Mo Alloy Steel (ZG40Cr25Ni20): 0.35%-0.45% carbon content, 24%-26% chromium content, 19%-22% nickel content, high creep resistance and high-temperature strength; 40CrNiMoA: 0.37%-0.44% carbon content, 0.60%-0.90% chromium content, 1.20%-1.60% nickel content, 0.15%-0.25% molybdenum content, high strength and toughness, suitable for medium-temperature heat treatment fixtures; High-Strength Carbon Steel (45#): 0.42%-0.50% carbon content, 0.50%-0.80% manganese content, high strength, suitable for low-temperature heat treatment fixtures.
| Material | Standard | Nominal Chemical Composition (%) | C | Si | Mn | Cr | Ni | Mo | S | P | Max Working Temp (℃) | Applicable Heat Treatment Process |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cr25Ni20 | GB/T 12230 | - | ≤0.20 | ≤1.00 | ≤2.00 | 24-26 | 19-22 | —— | ≤0.03 | ≤0.035 | 1200 | High-Temperature Annealing, Quenching |
| ZG40Cr25Ni20 | ASTM A297 | - | 0.35-0.45 | 1.5-2.5 | ≤2.00 | 24-26 | 19-22 | —— | ≤0.04 | ≤0.04 | 1100 | High-Temperature Quenching, Tempering |
| 40CrNiMoA | GB/T 3077 | - | 0.37-0.44 | 0.20-0.40 | 0.50-0.80 | 0.60-0.90 | 1.20-1.60 | 0.15-0.25 | ≤0.025 | ≤0.025 | 800 | Medium-Temperature Tempering, Normalizing |
| 45# Carbon Steel | GB/T 699 | - | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.25 | ≤0.25 | —— | ≤0.035 | ≤0.035 | 600 | Low-Temperature Aging, Cold Treatment |
| ZG30Cr5Mo | GB/T 11352 | - | 0.25-0.35 | 0.4-1.0 | 0.5-1.2 | 4.0-6.0 | —— | 0.2-0.8 | ≤0.04 | ≤0.04 | 750 | Medium-Temperature Annealing |
| FMU-29 | Custom | - | 0.25-0.45 | 0.3-1.0 | 0.6-1.5 | 6.0-8.0 | —— | 0.2-0.4 | ≤0.04 | ≤0.04 | 850 | Medium-High Temperature Heat Treatment |
Cr25Ni20: 0.20%-0.30% carbon content, 24%-26% chromium content, 19%-22% nickel content, austenitic heat-resistant alloy, applicable to 1000-1200℃ heat treatment processes; Cr Mo Alloy Steel (ZG40Cr25Ni20): 0.35%-0.45% carbon content, 24%-26% chromium content, 19%-22% nickel content, high creep resistance and high-temperature strength; 40CrNiMoA: 0.37%-0.44% carbon content, 0.60%-0.90% chromium content, 1.20%-1.60% nickel content, 0.15%-0.25% molybdenum content, high strength and toughness, suitable for medium-temperature heat treatment fixtures; High-Strength Carbon Steel (45#): 0.42%-0.50% carbon content, 0.50%-0.80% manganese content, high strength, suitable for low-temperature heat treatment fixtures.
| Material | Standard | Nominal Chemical Composition (%) | C | Si | Mn | Cr | Ni | Mo | S | P | Max Working Temp (℃) | Applicable Heat Treatment Process |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cr25Ni20 | GB/T 12230 | - | ≤0.20 | ≤1.00 | ≤2.00 | 24-26 | 19-22 | —— | ≤0.03 | ≤0.035 | 1200 | High-Temperature Annealing, Quenching |
| ZG40Cr25Ni20 | ASTM A297 | - | 0.35-0.45 | 1.5-2.5 | ≤2.00 | 24-26 | 19-22 | —— | ≤0.04 | ≤0.04 | 1100 | High-Temperature Quenching, Tempering |
| 40CrNiMoA | GB/T 3077 | - | 0.37-0.44 | 0.20-0.40 | 0.50-0.80 | 0.60-0.90 | 1.20-1.60 | 0.15-0.25 | ≤0.025 | ≤0.025 | 800 | Medium-Temperature Tempering, Normalizing |
| 45# Carbon Steel | GB/T 699 | - | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.25 | ≤0.25 | —— | ≤0.035 | ≤0.035 | 600 | Low-Temperature Aging, Cold Treatment |
| ZG30Cr5Mo | GB/T 11352 | - | 0.25-0.35 | 0.4-1.0 | 0.5-1.2 | 4.0-6.0 | —— | 0.2-0.8 | ≤0.04 | ≤0.04 | 750 | Medium-Temperature Annealing |
| FMU-29 | Custom | - | 0.25-0.45 | 0.3-1.0 | 0.6-1.5 | 6.0-8.0 | —— | 0.2-0.4 | ≤0.04 | ≤0.04 | 850 | Medium-High Temperature Heat Treatment |