本产品系屈服强度 460、 500、 550、 620、 690、 800MPa 的低焊接裂纹敏感性钢，，，，，，具有省略焊前预热、焊后无需热处置惩罚的优 良的焊接性能，，，，，，可用于种种煤矿机械、工程机械、口岸机械、修建机械及其它要求优异焊接性的结构部件等。。。。。

This product is the ? low welding crack susceptibility steel plate with the yield strengths of 460, 500, 550, 620, 690 and

800MPa, showing excellent welding performance due to no need of preheating before welding or heat treatment after welding, suitable for manufacture of various mining machinery, engineering machinery, port machinery, construction machinery and other structural components of good welding requirements.

4～80×2200～3800×6000～12000mm