ER 符合：YB/T5092 H12Cr24Ni13Si
不锈钢焊丝 相当：AWS A5.9 ER309
In accordance with：YB/T5092 H12Cr24Ni13Si
Be e to：AWS A5.9 ER309
ISO 14343-A-G 22 12 H
说明：ER309焊丝主要成分是22Cr-12Ni。配用SJ601不锈钢碱性烧结焊剂，其焊缝金属具有良好的力学性能，抗裂性能、抗晶间腐蚀性能，具有不增Si、不增C，且Cr、Ni烧损小等特点。因合金含量高，耐高温性良好。
用途：常用于碳钢与不锈钢异种材料焊接或应用于韧性较差的马氏体、珠光体不锈钢焊接。如石油化工、火力发电站等行业。
Instructions ：The ER309 welding stick consists mainly of 22Cr-12Ni. It coordinates with the stainless steel alkaline sintered flux SJ601.It’s welding line metal has good mechanical properties and resistance ability to intergranular corrosion and crack .It would not increase Si or C and would burn little Cr and Ni. Due to a high content of alloy ,it has good high thermal resistance ability.
Use ：It’s usually used to weld carbon steel and stainless dissimilar materials ,sometimes to weld martensite and pearlite steel with poor toughness ,in petrochemical industry ,fire power station and other industries.
焊丝化学成分（%）
项目 C Mn Si Cr Ni Mo P S Cu
保证值 ≤0.12 1.00~2.50 0.30~0.65 23.00~25.00 12.00~14.00 ≤0.75 ≤0.030 ≤0.030 ≤0.75
例值 0.081 1.61 0.40 23.85 13.15 0.23 0.012 0.013 0.23
参考电流（DC+）
焊丝直径（mm） Φ0.8 Φ1.0 Φ1.2 Φ1.6 Φ2.0 Φ2.5 Φ3.2
焊接电流（A） 70~150 100~200 140~220 50~100 100~200 200~300 300~400
注意事项：
焊接线能量的大小将直接影响到焊缝的力学性能。用户根据实际情况调整线能量，重要结构尽可能采用小的线能量。
焊接区域因严格去除油、锈、水分等杂质。
以上焊接参数仅供参考。
Cautions and operations points ：
The energy of the bonding wire directly affect the mechanical properties of the welding line .Consumers should adjust the energy of the bonding wire according to actual conditions. The importa