公司名称：济南巨申物资有限公司

60-90kg级低焊接裂纹敏感性高强度钢板
60-90 kg/cm2 Low Welding Crack Susceptibility High Strength Steel Plates

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、焊后无需热处理的优良的焊接性能，可用于各种煤矿机械、工程机械、港口机械、建筑机械及其它要求良好焊接性的结构部件等。
These serie products are the low welding crack susceptibility high strength steel plates with the yield strength more than 460、500、550、620、690、800MPa. The products have good weldability to meet the welding requirements,without taking preheating and post heating.They are suitable to be used in coal mining machinery ,engineering mechanical equipment,port machinery,construction machinery equipment and other conditions of good weldability.

Q460CFC/D/E
Q500CFC/D/E
Q550CFC/D/E
Q620CFC/D/E 标准：YB/T4137-2005《《低焊接裂纹敏感性高强度钢板》
standard:YB/T4137-2005《Low Welding Crack Susceptibility High Strength Steel Plates》
Q690CFC/D/E
Q800CFC/D/E
JG670CF JG785CF 协议：JGX698-2011《JG670CF、JG785CF低焊接裂纹敏感性高强度钢板技术协议》
protocol: JGX698-2011 《Technical Protocol for JG670CF、JG785CF Low Welding Crack Susceptibility High Strength Steel Plates》