Used in the products of the automobile, truck, tractor, and allied industries
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 3.40 | ||
| Si | 1.60 | 2.10 | ||
| Mn | 0.60 | 0.90 | ||
| P | - | 0.15 | ||
| S | - | 0.12 |
Brake drums and clutch plates for moderate service requirements, where high carbon iron is desired to minimize heat checking. Lamellar pearlite ferrite if present not to exceed 15%.
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 711 (≥) | 589 (≥) | 32 | 31 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 424 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 296 (≥) | 845 (≥) | 24 | 31 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 434 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 321 | 178 | 215 |
We can customize the production of G2500a grade, contact us for the best solution.
–sales@specificsteel.com