OK 75.75是一款已烘干至较低水分含量的LMA焊条,适合用于室温条件下或经过适度预热的高强度、低合金钢焊接。Typical Tensile Properties As welded Elongation Tensile Strength Yield Strength 保护气体 20 % 830 MPa 780 MPa ISO - - - AWS 夏比V型缺口冲击性能 As welded Impact Value Testing Temperature 保护气体 60 J -40 °C ISO 焊缝金属分析 Mn Mn Mo C Si Ni Cr 1.61 % - - - - - Mo Mn Mo C Si Ni Cr - 0.4 % - - - - C Mn Mo C Si Ni Cr - - 0.05 % - - - Si Mn Mo C Si Ni Cr - - - 0.36 % - - Ni Mn Mo C Si Ni Cr - - - - 2.4 % - Cr Mn Mo C Si Ni Cr - - - - - 0.4 % 熔敷数据 Fusion time per electrode at 90% I max kg weld metal/kg electrodes Number of electrodes/kg weld metal 安培 熔敷率 电压 V 直径 54 sec 0.67 kg 66.0 70-110 A 1.00 kg/h 22 V 2.5 x 350 mm 80 sec 0.67 kg 31.5 100-150 A 1.40 kg/h 23 V 3.2 x 450 mm 92 sec 0.65 kg 21.0 135-200 A 1.90 kg/h 24 V 4.0 x 450 mm 105 sec 0.63 kg 12.0 180-260 A 2.50 kg/h 25 V 5.0 x 450 mm