2363
Other2363
Air-hardening cold-work steel (DIN 1.2363 / A2).
Chemical Composition (%)
| C | 0.95 |
|---|---|
| SI | 0.1 |
| MN | 0.4 |
| CR | 4.8 |
| MO | 0.9 |
| V | 0.15 |
| P | 0.03 |
| S | 0.03 |
Applications
High-end / niche grade used in aerospace, defense, tooling, bearing, gear or heavy shaft applications.
Available Forms
Bar, plate, sheet, tube, forgings, strip, wire, powder
Uses
High-carbon chromium bearing steel for rolling-element bearings, races and precision balls/rollers. Combines high hardness, fatigue life and dimensional stability; also used for gauges, needles and wear parts.
Heat Treatment
Spheroidize anneal (760–780 °C), austenitize 830–860 °C oil quench, temper 150–180 °C to 60–66 HRC; stabilising treatments improve dimensional stability.
Precautions
Preheat and control interpass temperature when welding; post-weld heat treatment or stress relief is recommended to avoid hard-zone cracking. Use low-hydrogen electrodes. Protect from decarburization during heating (controlled atmosphere or protective coating).
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