Watch Industry

Yves Stöckli
Business Unit Manager Watch Industry
Hempel Special Metals offers solutions tailored to the requirements of the modern and high-end watchmaking industry, both for watch cases and movement components.
The exclusive range of Staybrite® stainless steels and titanium meets the highest criteria for corrosion resistance and polishability. Material is available as sheet and plate, bar, tube, wire, strip and special profiles, and can be cut or tailor-made on request.
Each material lot of the Watch Case Quality (Staybrite® WCQ) is additionally tested upon receipt at the service centre, and undergoes special analysis at an independent laboratory.
Product Range
Inox Staybrite®
| Alloy | Specifications |
|---|---|
| 316L / 1.4404 | |
| 316L / 1.4435 WCQ | WCQ |
| 316LVM / 1.4435 / 1.4441 WCQ+ | ASTM F-138, ISO 5832-1, WCQ+ (remelted) |
| 904L / 1.4539 | |
| 305 / 1.4303 |
Titanium
| Alloy | Specifications |
|---|---|
| Grade 1 / 3.7025 | ASTM F67-13 |
| Grade 2 / 3.7035 | ASTM F67-13 |
| Grade 4 / 3.7065 | ASTM F67-13 |
| Grade 5 / 3.7164 | |
| Grade 23 / Ti6Al4VELI / 3.7165ELI | ASM F136-13, ISO 5832-3 |
Other material
| Alloy | Specifications |
|---|---|
| X35 ST + | 700 HV |
| CuBe 2Pb - AM173 | 380 HV |
Bronze | CuSn8, CuAl |
| Nivaflex / 2.4782 | 45/18 |
| Tantalum | |
| Cronidur 30 / 1.4108 | AMS 5898 |
| P2000 / 1.4452 | |
| 444 / 1.4521N | |
| 420 / 1.4021 | |
| Zirconium / Zr 702 |

