Czech Republic · CSN
1.5918
CSN EN 10263-3 — Steel rod,bars and wire for cold heading and cold extrusion - Part 3: Technical delivery conditions for case hardening steels
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.14 | 0.2 | ||
| Cr | 1.4 | 1.7 | ||
| Cu | 0.25 | |||
| Mn | 0.5 | 0.9 | ||
| Ni | 1.4 | 1.7 | ||
| P | 0.025 | |||
| S | 0.025 | |||
| Si | 0.3 | A lower silicon content or a specific silicon range may be agreed at the time of ordering. |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| bars, wire +U+C+AC, > 2 <= 5 mm, steel bars | 600.00 | |||||
| bars, wire +U+C+AC, > 5 <= 40 mm, steel bars | 580.00 | |||||
| bars, wire +U+C+AC+LC, > 2 <= 5 mm, steel bars | 640.00 | |||||
| bars, wire +U+C+AC+LC, > 5 <= 40 mm, steel bars | 620.00 | |||||
| bars, wire +AC, > 5 <= 40 mm, steel bars | 600.00 | |||||
| bars, wire +AC+C, > 10 <= 40 mm, steel bars | 710.00 | |||||
| bars, wire +AC+C, > 5 <= 10 mm, steel bars | 720.00 | |||||
| bars, wire, -+FP, > 5 <= 40 mm, HB | Steel bar 156 207.00 |
Heat treatment
| Type | 1 |
|---|---|
| Heat-treatment curve | CCT modified |
| Heat-treatment curve | Hardness-Tempering |
| Heat-treatment curve | CCT |
| Heat-treatment curve | TTT |
| Heat-treatment curve | Hardenability |