Qu4842 TIG Filler Wire Heat Resistant 25 20 / ER310 (1.4842) – Scale Resistant to 1200 °C
Qu4842 TIG Filler Wire Heat Resistant 25 20 / ER310 (1.4842) – Scale Resistant to 1200 °C
Qu4842 is the heat-resistant 25-20 austenite: EN ISO 14343-A G/W 25 20 · AWS ER310 · filler no. 1.4842. Cr 25 % · Ni 20 %.
The weld metal is fully austenitic and scale resistant up to 1200 °C — while remaining tough down to −196 °C. It is the first choice under attack from oxidising, nitrogen-bearing and oxygen-poor gases and for joints on heat-resistant Cr-Si-Al steels in sulphurous gases. Important: avoid the range 605–900 °C — embrittlement can occur there.
Recommended base materials
- 1.4841, 1.4845, 1.4828
- 1.4840, 1.4846, 1.4826
- 1.4835, 1.4762
- Heat-resistant rolled, forged and cast steels
Typical applications
- Furnace construction and annealing baskets
- Components in oxidising and sulphurous gases
- Heat-resistant cast steel
- Cryogenic applications down to −196 °C
Properties and advantages
- Scale resistant up to 1200 °C
- Tough down to −196 °C
- Fully austenitic — resistant to oxidising and oxygen-poor gases
- Re 315 MPa · Rm 490 MPa · A 25 %. Avoid the 605–900 °C range
TIG advantage: For applying material over large areas and building up thicker sections.
TIG welding wire packaging: 1,000 mm rods, 1 kg cardboard tubes, 5 kg cartons, Ø 1.0–3.2 mm.
Material analysis (wt.-%)
C 0.12 | Si 0.50 | Mn 1.75 | Cr 25.00 | Ni 20.00 | Fe balance
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| Diameter: | 1,0 mm, 1,2 mm, 1,6 mm, 2,0 mm, 2,4 mm, 3,2 mm |
|---|---|
| Recommendations for basis material: | 1.4762, 1.4826, 1.4828, 1.4835, 1.4840, 1.4841, 1.4845, 1.4846 |
| Refinish: | material typical treatment |
| Rod length: | 1000 mm |
| Wire: | WIG wire |
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