CHS307（A307）符合：G/>nbspnbspnbspnbspAWSE/>说明：CHS307是低氢型药皮的不锈钢焊条，焊缝金属具有优良的抗裂性以及***化性能。采用直流反接，可进行全位置焊接。用途：用于焊接相同类型的不锈钢，异种钢以及高铬钢，高锰钢等。熔敷金属化学成份：nbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbspnbsp（%）CMnSiCrNiMoCuSP≤0.150.5-2.5≤0.90≤0.75≤0.75≤0.030≤0.040熔敷金属化学性能：（经保温4h，然后空冷）抗拉强度бb(Mpa)伸长率δ5(%)≥550≥25参考电流：（DC+）焊条直径（mm）2.02.53.24.05.0焊接电流（A）25-5050-8080-110注意事项：焊前焊条须经250烘焙1小时。)