SM570 steel plate execution standard and cutting process description

SM570 low alloy high strength steel plate implementation standard:
JIS G3106 standard (the maximum applicable thickness of this standard is 100mm).

Chemical composition of SM570 low alloy high strength plate:
C:≤0.18; Si:≤0.55; Mn:≤1.60; P:≤0.035; S:≤0.035.

Analysis of mechanical properties of SM570 steel plate:
Yield stress/MPa: 543
Tensile strength/MPa: 643
Yield strength ratio: 0.84
Cracking stress/MPa: 439
Elongation/%: 15
Cracking parameter X: 2.4

SM570 steel plate is a typical low-alloy high-strength steel plate in the Japanese standard JIS "Rolled Steel for Welded Structures". Its strength and grade are higher in the Japanese standard, and are widely used in construction machinery, bridges, containers, vehicles, electrical equipment and other structural parts. SM570 low alloy high strength plate has high strength and low temperature impact toughness. It has been used in major construction machinery factories and coal mining machinery factories for a long time.