Wuxi Zhanlu International Trade Co., Ltd
Wuxi Zhanlu adheres to the business philosophy of "quality is life, service is soul", and the principle of complete variety and service first.
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18CrMo4 (1.7243) alloy structural steel has good technological properties and weldability, and has high endurance strength at 500~550 ℃. When the temperature exceeds 550 ℃, the oxidation resistance becomes worse and the creep strength decreases significantly. When the temperature is 500~550 ℃ for a long time, the thermal strength and strength of 18CrMo4 steel decrease.
Supply Form & Size
| Form of Supply | Size(mm) | Length(mm) |
| Round bar | 6.0mm-1200mm | 2.5m-10m |
Chemical Composition&Related Specifications
| Grade | C | Si | Mn | S | P | Cr | Ni | Cu | Mo |
| 18CrMo4 | 0.15～0.21 | ≤0.40 | 0.60～0.90 | ≤0.035 | ≤0.035 | 0.90～1.20 | ≤0.030 | ≤0.030 | 0.15～0.25 |
Brand comparison table
| AISI/SAE | DIN/EN | BS | JIS/KS | China |
| / | 18CrMo4(1.7243) | 18CrMo4(1.7243) | SCM415 | 15CrMo |
Mechanical Property
| tensile strength σb (MPa) | ≥440(45) |
| yield strength σs (MPa | ≥295(30) |
| elongation δ5 (%) | ≤22 |
| Reduction of area ψ (%) | ≥60 |
| Impact absorbed energy(Aku2/J) | ≥94 |
| Impact toughness value αkv (J/cm2) | ≥118(12) |
| Sample size | 30mm |
| Brinell hardness(HBS100/3000) | ≤179HB |
