产品简介：低合金钢焊条包括抗拉强度500MPa级以上的低合金高强钢焊条，耐热钢焊条和低温钢焊条。低合金的焊接一般依钢材的强度等级来选用相应的焊条，对于碳钢与低合金钢或者低合金与低合金钢之间的异种钢焊接。一般选用与强度等级较低的钢材相应的焊接材料（焊条或焊丝）。牌号\化学成分CMnSiNiCrCuWMoVSPJ502NiCu≤0.10.3-0.8≤0.30.2-0.50.2-0.30.15-0.4≤0.035≤0.035J502WCu≤0.120.5-0.9≤0.30.2-0.50.2-0.5≤0.030≤0.030J502CrNiCu≤0.10.45-0.75≤0.30.35-0.450.25-1.450.1-1.3≤0.030≤0.030J506WCu≤0.120.6-1.2≤0.350.2-0.50.2-0.5≤0.030≤0.030J506R≤0.1≤1.5≤0.5≤0.7≤0.030≤0.030J506RH≤0.1≤1.6≤0.50.35-0.8≤0.025≤0.025J506NiCu≤0.120.5-1.2≤0.70.2-0.50.2-0.4≤0.03≤0.035J506NiCrCu≤0.10.45-1.0≤0.50.15-0.50.2-1.450.1-1.3≤0.03≤0.030J507NiCu≤0.120.5-1.2≤0.70.2-0.50.2-0.4≤0.03≤0.035J507WCu≤0.10.6-1.2≤0.350.2-0.5≤0.03≤0.030J507RH≤0.12≤1.6≤0.50.3-0.8≤0.025≤0.025J507Mo≤0.12≤0.9≤0.60.4-2≤0.2≤0.035≤0.035J507MoW≤0.1≤0.8≤0.5Nb≤0.120.5-0.9≤0.2J507CrNi≤0.10.5-0.80.3-0.50.2-0.50.5-0.80.2-0.50.2-0.5≤0.035≤0.035J507FeNi≤0.080.8-1.3≤0.651.2-2.0≤0.030≤0.030J606≤0.121.2-1.75≤0.60.25-0.45≤0.035≤0.035J607RH≤0.1≥1.0≤0.80.6-1.20.5-0.90.1-0.4≤0.025≤0.025J607Ni≤0.1≥1.0≤0.81.2-1.5≤0.03≤0.035J707Ni≤0.1≥1.0≤0.61.8-2.2≤0.20.4-0.6≤0.03≤0.030J857Cr≤0.15≥1.0≤0.60.2-1.10.5-1.0≤0.15≤0.035≤0.035J857CrNi≤0.11.3-2.5≤0.61.75-2.50.3-1.50.3-0.55≤0.05≤0.03≤0.04J907≤0.21.4-2.00.4-0.80.8-1.2≤0.035≤0.035J907Cr≤0.15≥1.0≤0.80.7-1.10.5-1.00.05-0.15≤0.035≤0.035J107≤0.2≥1.00.3-0.80.3-0.6≤0.035≤0.035J107Cr≤0.15≥1.00.3-0.81.5-2.20.4-0.80.05-0.15≤0.035≤0.035)