QuFe50 Bobbin – Laser Welding Wire Stainless 1.4576 / ER318Si – Chemical and Plant Engineering
€113.05
QuFe50 Bobbin – Laser Welding Wire Stainless 1.4576 / ER318Si – Chemical and Plant Engineering
QuFe50 is the niobium-stabilised CrNiMo austenite for chemical and plant engineering: 1.4576 · ER318Si (19 12 3 Nb Si).
The niobium ties up the carbon and thereby makes the weld metal resistant to intergranular corrosion — even without solution annealing after welding. Together with the molybdenum this gives the combination that vessels, piping and apparatus in chloride-bearing media need. Service range −120 to +400 °C.
Recommended base materials
- 1.4401, 1.4404 — X5/X2CrNiMo17-12-2 / AISI 316, 316L
- 1.4435, 1.4436 — CrNiMo austenites with increased Mo content
- 1.4571, 1.4573 — Ti-stabilized CrNiMo steels (316Ti)
- 1.4580, 1.4581, 1.4583 — Nb-stabilized CrNiMo steels and cast grades
Typical applications
- Chemical plant construction — vessels, piping
- Components in chloride-bearing media
- Plants without solution annealing after welding
- Repairs on Nb-stabilised CrNiMo steels
Advantages of 1.4576 / ER318Si
- Niobium stabilization prevents intergranular corrosion at weld seams
- Molybdenum (3.0 %) increases resistance to pitting and crevice corrosion
- Service range −120 °C to +400 °C
- Weld metal: yield 450 MPa, tensile 640 MPa, elongation 30 %
Bobbin form: K125, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,8 mm.
Material analysis (wt.-%)
C 0.03 | Si 0.4 | Mn 1.5 | Cr 19.0 | Ni 12.0 | Mo 3.0 | Nb 0.55 | Fe balance
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| Bobbin size: | K80, K125, MA125, SH253 |
|---|---|
| Bobbin weight: | 100 g, 200 g, 500 g |
| Diameter: | 0,2 mm, 0,3 mm, 0,4 mm, 0,5 mm, 0,6 mm, 0,8 mm |
| Recommendations for basis material: | 1.4401, 1.4404, 1.4435, 1.4436, 1.4571, 1.4573, 1.4576, 1.4580, 1.4581, 1.4583 |
| Refinish: | material typical treatment |
| Wire: | Laser welding wire |
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