S460ML properties Heavy Plates Cutting

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15CrMo alloy plate is a heat-resistant steel with pearlite structure, which has high thermal strength (δb≥440MPa) and oxidation resistance at high temperatures, and has a certain resistance to hydrogen corrosion. Due to the high content of Cr, C and other alloying elements in steel, the hardening tendency of S460ML properties and 15CrMo alloy plate is obvious and the weldability is poor. After welding, local high temperature tempering treatment should be carried out. The heat treatment process of 15CrMo alloy plate is as follows: the temperature rise rate is 200°C/h, the temperature is raised to 715°C for 1 hour and 15 minutes, the temperature drop rate is 100°C/h, and the temperature is reduced to 300°C before air cooling.

As the thickness and hardness of S460ML properties increase, the tendency to crack at the cutting edge increases. In order to prevent the S460ML properties from cutting cracks, preheating should be carried out before S460ML properties cutting. Special attention should be paid to preheating to make the entire S460ML properties interface evenly heated to avoid local overheating in the area contacting the heat source. If the whole S460ML properties cannot be preheated, the partial preheating method can be used instead.

QSTE550TM cold formed hot rolled pickled automotive structural steelQSTE550TM chemical composition (melting analysis)%C: ≤0.12, Si: ≤0.35, Mn: ≤1.70, P: ≤0.03, S: ≤0.025, Ti: ≤0.22, Nb: ≤0.09, Al: ≥0.015Mechanical propertiesYield strength MPa: ≥500Tensile strength MPa: 550-700

As steel transportation belongs to the transportation of major parts, so in the process of transportation, modern logistics technology, such as centralized transportation, information technology, is a bit out of place. Based on the current situation of China's S460ML properties steel transportation industry, highway transportation is a way of transportation that many enterprises often choose. Naturally, its business volume also accounts for more than 50% of the whole S460ML properties steel transportation industry.

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