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TlG welding rods, copper coated for welding in boiler, pressure vessel and pipeline construction, also for welding work with guenched and tempered and case-hardening steels. Preferred for 13CrMo4-5. Approved for long-term use at operating temperatures of up to +570°C.Suitable for step cooling applications(Bruscato <15 ppm). The weld metal exhibits high quality, good toughness and crack resistance, it is resistant to caustic cracking, can be nitrided and is suitable for quenching and tempering. The creep strength in the same range as the 13Cro4-5 material. Very good welding and flow behaviour.
same alloy creep resistant steels and cast steel, case-hardening and nitriding steels with comparable composition,heat treatable steels with comparable composition.，steels resistant to caustic cracking
Tensile strength(Mpa)： | MIN 550 |
Yield stress(Mpa): | MIN 470 |
Elongation (%) | MIN 20 |
Impact values: | MIN 47(-29℃) |
C | Mn | Si | Cr | Ni | Mo | P | S | Cu |
0.07-0.12 | 0.40-0.70 | 0.40-0.70 | 1.20-1.50 | ≤0.20 | 0.40-0.65 | ≤0.012 | ≤0.025 | ≤0.20 |
0.098 | 0.60 | 0.55 | 1.26 | 0.10 | 0.50 | 0.006 | 0.002 | 0.008 |
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