Gas welding rods
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DIN EN ISO: 20378 - O VIAWS: A5.2 ~R65Material no.: 1.7305
Gas welding rods for mild and low alloyed steels
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Characteristics and application
Rod for gas welding of high temperature creep resistant 2.25%Cr-1%Mo ferritic steels, i.e. P21/P22. These steels are used for creep resisting applications up to ~600°C. Typical applications in power generation plant include steam piping, turbines and boilers; the alloy also finds applications in the chemical and petro-chemical industries.
Base materials
For matching 2.5%Cr-1%Mo creep resisting ferritic steels.
10CrMo 9-10, 12CrMo 9-10, G-17CrMo 9 10
ASTM: A182 grade F22, A199/A200 grades T21/T22, A213 grade T22, A217 grade WC9, A234 grade WP22, A335 grade P22, A387 grades 21/22
Classifications
| DIN EN ISO | 20378 - O VI |
|---|---|
| AWS | A5.2 ~R65 |
| Material no. | 1.7305 |
Typical analysis in %
| C | Si | Mn | Cr | Mo |
|---|---|---|---|---|
| 0,08 | 0,15 | 0,55 | 2,10 | 1,00 |
Mechanical properties
| Yield strength (MPa) | ≥ 340 |
|---|---|
| Tensile strength (MPa) | ≥ 520 |
| Elongation (%) | 4d/5d: ≥18 |
| Charpy-V value (ISO-V, J) | RT ≥ 60 |
Typical heat treatment
Preheat temperature: 200°C
Interpass temperature: max. 300°C
PWHT: 690°C
Documentation
Official Fliess publication for the programme as a whole, not for the individual item.
Related products
Related products from the Fliess programme, with the welding process. Not a claim of technical interchangeability.
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