Japan · JIS
30H Grade Ⅱ-2
JIS E1102:2006 — Fish plates for rails (Amendment 2)
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.35 | 0.53 | ||
| Mn | 0.6 | 0.9 | ||
| P | 0.03 | |||
| S | 0.035 | |||
| Si | 0.15 | 0.35 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| quenched and tempered | ≥686 | ≥12 | HB 262–331 Hardness of finished surface |