ER309L 符合:YB/T5092 H03Cr24Ni13Si
不锈钢焊丝 相当:AWS A5.9 ER309L
ISO 14343-A-G 23 12 L
In accordance with:YB/T5092 H03Cr24Ni13Si
Be equivalent to:AWS A5.9 ER309L
ISO 14343-A-G 23 12 L
说明:ER309L焊丝主要成分是低C-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,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。如石油化工、火力电站等行业。
Instructions:The ER309L welding stick consists mainly of low C-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, or to resurfacing weld the inner wall of the reaction vessel in petrochemical industry, or to weld martensite with poor toughness, ferrite stainless steel or similar materials.
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 |
0.30~0.65 |
23.00~25.00 |
12.00~14.00 |
≤0.75 |
≤0.030 |
≤0.030 |
≤0.75 |
例值 |
0.021 |
1.95 |
0.34 |
23.90 |
12.92 |
0.39 |
0.012 |
0.008 |
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。