Product Overview
SN-140 Tempering Salt is a low-temperature nitrate/nitrite-based salt bath compound designed for the martempering (marquenching) of bearing steels, thin-section rings, precision automotive parts and high-carbon tool steels. The bath operates from 150°C to 500°C — covering the full martempering window for 100Cr6, EN31 and similar grades.
Martempering in SN-140 produces significantly less distortion than conventional oil quenching. The uniformly heated salt bath eliminates the thermal gradients that cause warping in thin-section and ring-shaped components — critical for bearing rings where bore roundness and OD tolerance are measured in microns.
Technical Specifications
| Product Code | SN-140 |
| Salt Type | Nitrate/Nitrite low-temperature quench salt |
| Working Temperature | 150°C – 500°C |
| Process | Martempering (marquenching) |
| Physical Form | White granular salt |
| Packaging | 25 kg HDPE sealed bags |
| Compatible Steel Grades | 100Cr6, EN31, EN9, carbon steels |
| Key Benefit | Reduced distortion vs. oil quench |
| Storage | Cool, dry — segregate from combustibles |
| Documentation | COA, MSDS, TDS included with every order |