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The effect of alloy elements on the properties of heat treatment methods for thick steel plate: the performance of heat treatment method reflects the difficulty coefficient level of heat treatment process and the tendency of defects caused by heat treatment process. The key points include cutting performance, over temperature sensitivity, quenching aging tendency and air oxidation carburizing tendency. S690QL1 steel equivalent, Carbon steel has high machinability, and slow cooling method can be used in heat treatment, which can reduce the deformation and cracking tendency of the products. The addition of Mn and Si will increase the over temperature sensitivity of steel.
A514 grade T high strength structural steel chemical composition (melting analysis)%C: 0.08-0.14, Si: 0.40-0.60, Mn: 1.20-1.50, P max.: 0.035, S max.: 0.010, B max.: 0.005, Mo: 0.15-0.30, V: 0.03-0.08The mechanical properties in thickness (mm) T≤65Yield strength (≥Mpa): 690Tensile strength (Mpa):760-895Elongation in ≥, %: 18
Recently, the S690QL1 steel equivalent price has fallen into a dilemma, and Tangshan production restriction has started again. When the market transaction is weak, the S690QL1 steel equivalent price gain support again. Although the high demand is not good at present, which will restrain the rise of S690QL1 steel equivalent price, the preference of market mentality and cost side make most S690QL1 steel equivalent manufacturers optimistic about the prosperous season. Therefore, it is expected that the S690QL1 steel equivalent price will be easy to rise and difficult to fall in the near future, so it is suggested that businesses can make up stocks at low prices.
Structural steel is a category of steel construction material that is produced with a particular cross section or shape, and some specified values of strength and chemical composition. S690QL1 steel equivalent, Structural steel plates are normally supplied in the as-rolled condition. Our structural steel plate are supplied with thickness range 3mm to 350mm. The plates may be ordered normalized or stress relieved, or both. steel plates shall be normalized. steel plates and sheets shall be quenched and tempered.
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