S420NL carbon steel plate sheet characteristics and use

S50C steel plate is a high-quality high-quality medium carbon steel. S stands for steel, which means iron, and 50 stands for carbon content of 0.50%. C represents carbon steel, which means that S50C is a carbon steel with a carbon content of 0.50%.Mechanical properties of S50C steel plate:Tensile strength σb (MPa): ≥630 (64); Yield strength σs (MPa): ≥375 (38); Elongation δ5 (%): ≥14; Reduction of area ψ (%): ≥40; Impact Work Akv (J): ≥31(4); Impact toughness value αkv (J/cm2): ≥39(4)Hardness: unheated, ≤241HB; annealed steel, ≤207HB

At present, the overall market demand of S420NL carbon steel plate sheet is weak, the purchase intention of end users is not strong, and the purchase is basically on demand. The market transaction of S420NL carbon steel plate sheet is relatively general, and some markets have declined. However, the overall market inventory of S420NL carbon steel plate sheet is not high, coupled with the strong willingness of steel mills to support price, and the high resource cost in the later stage, therefore, businesses are not willing to sell of S420NL carbon steel plate sheet at too low price. On the whole, the short-term market of S420NL carbon steel plate sheet is expected to be dominated by high fluctuations.

S420NL carbon steel plate sheet Shanghai inventory: 12.9*2987*10384, 15*2200*10270, 14*1950*10600, 320*2200*4250, 32*2500*6000, 14*2200*10030, 65*3010*8230, 16*2100*10650, 36*2200*12000, 12.9*2987*10384, 14*1950*10900, 25*2500*12000, 15*2200*10270, 20*2620*11800, 14*1950*10450, 30*2200*12000, 14*2200*10030, 20.9*2851*7000, 20*2933*7300, 14*1950*10500, 50*2200*12000, 31.9*2920*9420, 20*2933*7300.

Tempering includes high temperature tempering, medium temperature tempering and low temperature tempering. Tempering means to reheat the S420NL carbon steel plate sheet quenched steel to a certain temperature and then cool it in a certain way. Tempering can reduce or eliminate the internal stress produced by quenching, reduce the hardness and strength, and improve the ductility or toughness of steel. After S420NL carbon steel plate sheet quenching, the workpiece should be tempered in time, and the required mechanical properties can be obtained through the combination of quenching and tempering.