China · GB
RuTSi4Mo
GB/T 26653:2011 — Exhaust manifold iron castings
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 2.8 | 3.6 | ||
| Cr | 0.5 | |||
| Cu | 0.5 | |||
| Mn | 0.3 | |||
| Mo | 0.5 | 0.7 | ||
| Ni | 0.6 | |||
| P | 0.05 | |||
| S | 0.02 | |||
| Si | 4.3 | 4.7 | ||
| Ti | 0.2 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| castings | ≥400 | ≥480 | ≥2 | HB 200–260 HBW |