H00Cr22Ni8Mo3N
说明:
焊丝主要成分是22Cr-9Ni-3Mo-N,为奥氏体-铁素体双相不锈钢TIG焊丝。由于熔敷金属含有40%左右的铁素体,熔敷金属兼有奥氏体不锈钢的综合性能和铁素体不锈钢的抗应力腐蚀特性,成为一种新兴的焊接材料。
用途:
常应用于石油化工、船舶制造等行业,如022Cr22Ni5Mo3N(SUS 2205)材料的焊接。
焊丝化学成分(%)
| C | Mn | Si | Cr | Ni | Mo | P | S | Cu | N |
保证值 | ≤0.030 | 0.50~2.00 | ≤0.90 | 21.50~23.50 | 7.50~9.50 | 2.50~3.50 | ≤0.030 | ≤0.030 | ≤0.75 | 0.08~0.20 |
例值 | 0.022 | 1.67 | 0.44 | 22.60 | 8.70 | 3.20 | 0.011 | 0.009 | 0.16 | 0.15 |
参考电流(AC或DC+)
直径(mm) | φ1.6 | φ2.0 | φ2.5 | φ3.2 |
焊接电流(A) | 50~100 | 100~200 | 200~300 | 300~400 |
注意事项:
1. Protective gas: pure Ar; flow: 9 ~ 14L / min at current of 100 ~ 200A and 14 ~ 18L / min at current of 200 ~ 300A.
2. Tungsten extension length: 3 ~ 5mm; arc length: 1 ~ 3mm.
3. Wind speed limit ≤1.0m / s; it is recommended to pass argon gas protection on the back of welding area.
4. In welding, the size of the welding wire energy directly affects the mechanical properties of the weld metal and crack resistance, should pay more attention.
5. Welding parts of the rust layer, moisture, oil, dust, etc. in addition to net.
The above suggestions are for reference only, in the specific operation to the scene prevail. If necessary, process assessment and then determine the welding program.
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