30
traction, earrings, beams, levers, shafts, sprockets, spindles, press cylinders, joints and other parts of low strength.
Classification
Chemical composition
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Cu, % | Ni, % | As, % | P, % | C, % | S, % |
|---|---|---|---|---|---|---|---|---|---|---|
| Standard | Fe, % | Si, % | Mn, % | Cr, % | Cu, % | Ni, % | As, % | P, % | C, % | S, % |
| GOST 1050-88 | 97.475–99.06 | 0.17–0.37 | 0.5–0.8 | < 0.25 | < 0.3 | < 0.3 | < 0.08 | < 0.035 | 0.27–0.35 | < 0.04 |
Information on suppliers
Physical characteristics
| 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} |
|---|---|---|---|---|---|
| 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} |
| 20 | 200 | 52 | 7850 | ||
| 100 | 196 | 12.1 | 51 | 0.47 | |
| 200 | 191 | 12.9 | 49 | 0.483 | |
| 300 | 185 | 13.6 | 46 | 0.546 | |
| 400 | 14.2 | 43 | 0.563 | ||
| 500 | 14.7 | 39 | 0.764 | ||
| 600 | 164 | 15 | 36 | ||
| 700 | 15.2 | 32 |
Mechanical properties at 20 °C
| Rolling | Standard | Size, mm | Tension | Classifiers | \sigma _{U}, MPa | \sigma_{P}, MPa | \epsilon_L, % | \psi, % | Treatment |
|---|---|---|---|---|---|---|---|---|---|
| Rolling | Standard | Size, mm | Tension | Classifiers | \sigma _{U}, MPa | \sigma_{P}, MPa | \epsilon_L, % | \psi, % | Treatment |
| Sheet | 4–14 | heat-treated | 430–590 | 24 | |||||
| Metal rolling | GOST 1050-88 | < 80 | 490 | 295 | 21 | 50 | Normalization | ||
| Metal rolling | GOST 1050-88 | cold-work | 560 | 7 | 35 | ||||
| Metal rolling | GOST 1050-88 | annealing | 440 | 17 | 45 | ||||
| Tape | annealing | 390–640 | 16 | ||||||
| Tape | cold-work | 640–930 |
Brinell hardness number
| Rolling | Standard | Classifiers | Value, HBW |
|---|---|---|---|
| Rolling | Standard | Classifiers | Value, HBW |
| Sheet | heat-treated | 0–0 | |
| Metal rolling | GOST 1050-88 | calibrated, cold-work | 229 |
| Metal rolling | GOST 1050-88 | hot rolling | 0–0 |
| Metal rolling | GOST 1050-88 | annealing, calibrated | 0–0 |
Technological Properties
Critical point temperatures
Analogues
| USA | Germany |
|---|---|
| USA | Germany |
| M1031 | 1.0528 (C30) |
Standards
| Standard | Description |
|---|---|
| Standard | Description |
| GOST 1050-88 |
Description of chemical elements
Description of physical characteristics
| Parameter | Units of measurement | Description |
|---|---|---|
| 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) |
Description of mechanical properties
Designation of types of weldability
| Parameter | Units of measurement | Description |
|---|---|---|
| Parameter | Units of measurement | Description |
| no limits | Welding is performed without heating and without subsequent heat treatment | |
| Boundedly welded | Welding is possible with heating up to 100–120 °C and subsequent heat treatment | |
| Difficult to weld | For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing | |
| Not applicable for welded structures |