ER309LSi 符合：YB/T5092 H03Cr24Ni13Si1
不锈钢焊丝 相当：AWS A5.9 ER309LSi
ISO 14343-A-G 23 12 L Si
In accordance with：YB/T5092 H03Cr24Ni13Si1
Be equivalent to：AWS A5.9 ER309LSi
ISO 14343-A-G 23 12 L Si
说明：焊丝主要成分是C-23Cr-13Ni，是不锈钢MIG、TIG焊接材料，可全位置焊接。因添加Si，铁水流动性佳，从而成形更加美观，送丝顺畅、电弧稳定、飞溅极少；熔敷金属的机械性能稳定。因含碳量低，耐腐蚀性能优良。
用途：常用于碳钢与不锈钢异种材料焊接，石油化工行业如反映容器内壁堆焊过渡金属，或应用于韧性较差的马氏体、珠光体不锈钢焊接。
Instructions：The ER309LSi welding stick consists mainly of C-23Cr-13Ni. It belongs to stainless steel MIG and TIG welding material and can be used to all-position welding. Because of the addition of Si, the molten iron flows well as to shape up more beautifully and to feed wire more smoothly, with sable voltaic arc and little splatter. The deposited metal has steady mechanical property. Due to a low content of carbon ,it has excellent inoxidability.
Use：It’s usually used to weld carbon steel and stainless dissimilar materials, to resurfacing weld the inner wall of the reaction vessel in petrochemical industry, or to weld martensite with poor toughness and ferrite stainless steel.
焊丝化学成分（%）
|
项目 |
C |
Mn |
Si |
Cr |
Ni |
Mo |
P |
S |
Cu |
|
保证值 |
≤0.030 |
1.00～2.50 |
0.65～1.00 |
23.00～25.00 |
12.00～14.00 |
≤0.75 |
≤0.030 |
≤0.030 |
≤0.75 |
|
例值 |
0.021 |
2.33 |
0.78 |
23.93 |
13.84 |
0.46 |
0.012 |
0.014 |
0.19 |
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：
1. 保护气体：注意保护气体的纯度，混合气配比推荐Ar+1～3%O2。TIG采用纯Ar。
2. 气体流量：20～25L/min。
3. 干伸长度：15～25mm。
4. 将焊接部位的锈层、湿气、油污、灰尘等确实除净。
5. 室外焊接时，当风速大于1.5m/s应采取适当的防风措施，以防发生气孔。
