BaerCoil® Wire Thread Inserts – Materials
| Tensile strength at room temperature | Temperature resistance | Applications | ||
|---|---|---|---|---|
| Stainless steel V2A AISI 304 Material no.: 1.4301 X5CrNi18-10 | > 1,400 N/mm² | 315°C long-term 425°C short-term | All normal applications for thread repair and for thread reinforcement | |
| Stainless steel V4A AISI 316 X5CrNiMo17-12-2 Material no.: 1.4401 | > 1.400 N/mm² | 315°C long-term 425°C short-term | - improved corrosion resistance - reduced thread friction - for high-alloy CrNr steel screws | Applications in seawater and chlorinated water |
| Inconel X750 NiCr15Fe7TiAl material no.: 2.4669 Nimonic 90 NiCr20Co18Ti material no.: 2.4632 | > 1,150 N/mm² > 1,150 N/mm² | 550°C long-term 750°C short-term 600°C long-term 900°C short-term | - high thermal resistance - high corrosion protection | - Aerospace - turbochargers - aircraft engines - turbines - thermal power plants |
| Bronze CuSn6 CW452K Material No.: 2.1020 | > 900 N/mm² | 250°C long-term 300°C short-term | - Movement threads - Cr-Ni screws - Cu workpieces - Non-magnetic | Applications in seawater. Best electrical conductivity |
Other materials such as Nitronic 60, Inconel 625, Hastelloy, as well as special materials are available on request.
BaerCoil® wire thread inserts – surface treatments
| Color | Applications | |
|---|---|---|
| Cadmium-plated | yellow, glossy | For high corrosion resistance and high lubrication to prevent seizing. Suitable up to 250°C. |
| Galvanized | yellow | For high corrosion resistance, alternative for cadmium plating. |
| Silver plated | silver | prevents thread seizure at high temperatures. |
| Cadmium plated & olive colored | olive gray | According to US military specifications like NASM21209 |
| Dry film lubrication | gray | Additional lubrication for applications with high frictional force, e.g. recommended for applications of inserts - type: "screw grip |
| BaerCoil protection | black, glossy | prevents corrosion between the thread insert and the holding thread. Facilitates and improves installation. |