17H18N9 (2X18H9)
cold-rolled sheet and strip for increased strength of various parts and structures to be welded by spot welding, as well as for products subjected to spot welding; austenitic steel
cold-rolled sheet and strip for increased strength of various parts and structures to be welded by spot welding, as well as for products subjected to spot welding; austenitic steel
Standard | Fe, % | Si, % | Mn, % | Cr, % | Ti, % | Cu, % | Ni, % | P, % | C, % | S, % |
---|---|---|---|---|---|---|---|---|---|---|
GOST 5632-72 | 68.935–74.87 | < 0.8 | < 0.2 | 17–19 | < 0.5 | < 0.3 | 8–10 | < 0.035 | 0.13–0.21 | < 0.02 |
Temperature, °C | $$E\cdot 10^{9}$$, $$MPa$$ | $$\alpha\cdot 10^{6}$$, $$K^{-1}$$ | $$\varkappa$$, $$\frac{W}{m\cdot K}$$ | $$\rho$$, $$\frac{kg}{m^3}$$ | $$c\cdot 10^{-3}$$, $$\frac{J}{kg\cdot K}$$ | $$R\cdot 10^{-6}$$, $$\Omega\cdot m$$ |
---|---|---|---|---|---|---|
20 | 199 | 18 | 7900 | 0.72 | ||
100 | 16 | 19 | 0.504 | 0.735 | ||
200 | 17 | 20 | 0.855 | |||
300 | 17.5 | 21 | 0.925 | |||
400 | 17.9 | 22 | 0.975 | |||
500 | 18.5 | 24 | 1.031 | |||
600 | 18.6 | 25 | 1.08 | |||
700 | 147 | 18.9 | 26 | 1.115 | ||
800 | 19.1 | 27 | 1.15 | |||
900 | 19.3 | 28 | 1.185 | |||
1000 | 19.5 |
Rolling | Standard | Size, mm | Tension | Classifiers | $$\sigma _{U}$$, $$MPa$$ | $$\sigma_{P}$$, $$MPa$$ | $$\epsilon_L$$, % | $$\psi$$, % | Treatment |
---|---|---|---|---|---|---|---|---|---|
Pipes are hot deformed. | GOST 9940-81 | 568 | 40 | ||||||
Pipes are coldly deformed. | GOST 9941-81 | 568 | 35 | ||||||
Rod | GOST 5949-75 | < 60 | 570 | 215 | 40 | 55 | Hardening of 1050-1100 ° C, air cooling | ||
The bar is hardened. | GOST 18907-73 | 880–930 | |||||||
Bar of specified strength | GOST 18907-73 | 590–880 | 20 | ||||||
The plates | GOST 7350-77 | 590 | 265 | 35 | Hardening of 1080-1120 ° C, cooling water | ||||
Sheet | GOST 4986-79 | 570 | 17–34 | Hardening of 1050-1080 ° C, air | |||||
Sheet thin is half-worked. | GOST 5582-75 | 740–930 | 25 | ||||||
Sheet | GOST 5582-75 | 590 | 35 | Hardening of 1050-1080 ° C, cooling water | |||||
The sheet is thin and hardened. | GOST 5582-75 | 980–1230 | 13 | ||||||
The sheet is thin and hardened. | GOST 4986-79 | 980 | 3–5 |
Germany | USA |
---|---|
X12CrNi18-8 | S30200 |
Standard | Description |
---|---|
GOST 5632-72 |
Parameter | Units of measurement | Description |
---|---|---|
$$E\cdot 10^{9}$$ | $$MPa$$ | Elastic modulus |
$$\alpha\cdot 10^{6}$$ | $$K^{-1}$$ | Coefficient of thermal (linear) expansion (range 20°C–T) |
$$\varkappa$$ | $$\frac{W}{m\cdot K}$$ | Coefficient of thermal conductivity (the heat capacity of the material) |
$$\rho$$ | $$\frac{kg}{m^3}$$ | The density of the material |
$$c\cdot 10^{-3}$$ | $$\frac{J}{kg\cdot K}$$ | The specific heat of the material (range 20°C–T) |
$$R\cdot 10^{-6}$$ | $$\Omega\cdot m$$ | Electrical resistivity |