30H13N7S2 (3Х13Н7С2, EI72)
valves for automobile engines; heat-resistant steel
valves for automobile engines; heat-resistant steel
Standard | Fe, % | Si, % | Mn, % | Cr, % | Ni, % | P, % | C, % | S, % |
---|---|---|---|---|---|---|---|---|
GOST 5632-72 | 74.305–79.75 | 2–3 | < 0.8 | 12–14 | 6–7.5 | < 0.03 | 0.25–0.34 | < 0.025 |
Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\epsilon_L$$, % | $$\psi$$, % | $$KCU\cdot 10^{3}$$, $$\frac{J}{m^2}$$ | Treatment |
---|---|---|---|---|---|---|---|---|---|---|
Rod | GOST 5949-75 | 1180 | 785 | 8 | 25 | 200 |
Standard | Description |
---|---|
GOST 5632-72 |