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自2011年至今,已经有4项焊材标准进行了更新,它们是NB/T 47018.1~47018.7—2011《承压设备用焊接材料订货技术条件》代替JB/T 4747—2002《压力容器用钢焊条订货技术条件》;GB/T 983—2012《不锈钢焊条》代替GB/T 983—1995《不锈钢焊条》;GB/T 5117—2012《非合金钢及细晶粒钢焊条》代替GB/T 5117—1995《碳钢焊条》;GB/T 5118—2012《热强钢焊条》代替GB/T 5118—1995《低合金钢焊条》。所颁布的新标准与原标准相比,变化颇大。经过这几年的使用发现了一些问题,使用中也遇到了一定的难度。
Since 2011, there have been four welding consumables standards have been updated, they are NB / T 47018.1 ~ 47018.7-2011 “pressure equipment welding materials ordering technical conditions” instead of JB / T 4747-2002 “pressure vessel steel electrodes GB / T 983-2012 ”stainless steel electrode“ instead of GB / T 983-1995 ”stainless steel electrode“; GB / T 5117-2012 ”non-alloy steel and fine grain steel electrode“ instead of GB / T 5117- 1995 ”Carbon steel electrode“; GB / T 5118-2012 ”Hot-tempered steel electrode“ instead of GB / T 5118-1995 ”low-alloy steel electrode." The new standard promulgated is quite different from the original standard. After several years of use found some problems, use also encountered a certain degree of difficulty.