What is hardox 450 chemical composition elastic modulus?

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15CrMo alloy plate is a pearlite structure heat-resistant steel, which has high thermal strength (δb≥440MPa) and oxidation resistance at high temperature, and Hardox 450 chemical composition has certain hydrogen corrosion resistance. Due to the high content of Cr, C and other alloy elements in 15CrMo alloy plate, the steel has obvious hardening tendency and poor weldability. The weight calculation formula of 15CrMo alloy plate: length × width × thickness × 0.00785 = kg / m. Delivery status of 15CrMo alloy plate: hot rolling, controlled rolling, normalizing, high temperature tempering, QT, etc.

Q/BQB 310-2009 SAPH310 automotive structural steel technical dataChemical composition (melting analysis)%Carbon : ≤0.10, Silicon : ≤0.05, Manganese: ≤0.50, Phosphorus: ≤0.035, Sulfur: ≤0.035, Aluminum: ≥0.01Mechanical propertiesYield strength MPa: ≥185Tensile strength MPa: ≥310Elongation: ≥35

Compared with 15Cr steel, 20Cr alloy has higher strength and hardenability. The critical hardening diameter in oil is 4-22mm, and the critical hardening diameter in water is 11-40mm, but the toughness is poor. This Hardox 450 chemical composition alloy steel Hardox 450 chemical composition still has a tendency to grow grains during carburization, and direct quenching at lower temperature has a greater impact on impact toughness, so secondary quenching is required after carburization to improve the toughness of the core of the part, and there is no temper brittleness.

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