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| Min. Order: | 1 Kilogram |
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AWS A5.21RCoCr-B stellite 12 mig tig Welding Wire rod used in Wood sawtooth
GB/T 29713 RCoCr-B
YB/T 5092 H112
AWS A5.9 RCoCr-B
ISO 14343-B-RCoCr-B
Description:
ND112 cobalt-based surfacing tig welding rod in the Co-Cr-W surfacing alloy with moderate hardness, wear
resistance than ND111 good, but slightly less plastic, with good corrosion resistance, heat and wear resistance,
about 650 ℃ high temperature Still maintain these characteristics.
Use:
Mainly used for high temperature, high pressure valves, internal combustion engine valves, high pressure pump
sleeve and liner sleeve, hot roll hole type welding
Deposited metal Chemical composition (%)
| project | C | Mn | Si | Cr | W | Fe | Co | S | Cu |
| guarantee value | 1.2-1.7 | ≤1.0 | 0.4-2.0 | 26-32 | 7.0-9.5 | 2.0 | margin | - | - |
Reference current (AC, DC-)
| diameter(mm) | 1.6 | 2.0 | 2.5 | 3.2 |
| Welding current(A) | 50~100 | 100~200 | 200~300 | 300~400 |
Precautions:
1. Protection of gas: the use of pure Ar; flow: current in the 100 ~ 200A 9 ~ 14L / min, the current in the
200 ~ 300A 14 ~ 18L / min.
2. Tungsten pole extension length: 3 ~ 5mm; arc length: 1 ~ 3mm.
3. Wind speed limit of ≤ 1.0m / s; Proposed in the welding area on the back of the argon protection.
4. In the welding, the welding line energy directly affects the size of the weld metal mechanical properties
and crack resistance, etc., should be more attention.
5. The welding parts of the rust layer, moisture, oil, dust, etc. in addition to the net.The above recommend
ations are for reference only, in the specific operation of the prevailing situation prevail. If necessary, first
process evaluation and then determine the welding program.
Product Categories : welding wires > cobalt base welding wire
