Qu819 Bobbin – Laser Welding Wire Cold-Work Tooling 1.2767 / 1.2721 / 1.2714 – 46–48 HRC
€278.46
Qu819 Bobbin – Laser Welding Wire Cold-Work Tooling 1.2767 / 1.2721 / 1.2714 – 46–48 HRC
Qu819 is the build-up wire for cold-work tooling and plastic moulds: EN ISO 14700 S Fe 3 · 819BS · filler no. ~1.6773.
It matches the nickel-alloyed tool steels 1.2767 (X45NiCrMo4), 1.2721, the hammer steel 1.2714 (55NiCrMoV7) and 35NCD16 / 45NiCrMo18 / 60NiCrMo11. According to the datasheet its hallmark is the combination of high dimensional accuracy with high hardness and strength (46–48 HRC as welded) — exactly what a cavity or die needs when it is machined back to size after welding and then has to hold up in service.
Recommended base materials
- 1.2767 (X45NiCrMo4)
- 1.2721
- 1.2714 (55NiCrMoV7) — hammer steel
- 35NCD16, 45NiCrMo18, 60NiCrMo11 and similar
Typical applications
- Plastic moulds — cavities and parting edges
- Cold-work tooling
- Dies, cutting tools and hammer steels
- Parts that are machined back to size after welding
Properties and advantages
- 46–48 HRC as welded — hardness without post-weld heat treatment
- High dimensional accuracy per the datasheet
- Rm max. 912 MPa, A 12–19 %
- Machining behaviour typical for the material
Bobbin form: K125, K80, MA125, SH253 — wire weight 100 g–500 g, Ø 0,2 mm – 0,8 mm.
Material analysis (wt.-%)
C 0.35 | Si 0.30 | Mn 0.45 | Mo 0.25 | Cr 1.7 | Ni 3.7 | Fe balance
Download
| Achievable hardness: | 46 - 48 HRC |
|---|---|
| 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: | 1.2714, 1.2721, 1.2767, 35NCD16, 45NiCr-Mo18, 60NiCrMo11 |
| Refinish: | material typical treatment |
| Wire: | Laser welding wire |
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