GB/T 45
GB/T 45 introduction
GB/T 699-1999 Grade 45 is a quality carbon structural steel that is widely used in mechanical manufacturing applications and high-strength moving parts.
Equivalent material: DIN 1.0503, DIN GS-C45, DIN C45, AFNOR C45, BS 080M46, UNI C45, SS 1650, UNE F.114, AISI 1045, AISI 1043, SAE 1045, SAE 1043, JIS S45C, JIS S45CM, EN C45, EN 2C45, EN 1.0503, ISO C45, ISO CS45, GOST 45, GB 45, GB U20452, GB/T U20452, ASTM Grade 1045, UNS G10430, UNS G10450, IS C45, DIN 1.1191, DIN Ck45, DIN C45E, DIN GS-Ck45, AFNOR XC45, AFNOR C45E, AFNOR C45RR, AFNOR XC48H1, BS 080H46, BS CFS8, BS C45E, BS AW2, SS 1672, UNE C45K, AISI 1045H, SAE 1045H, JIS S48C, EN C45E, EN 1.1191, ISO C45E4, ISO C45E, ISO CE45E4, ISO S48C, GB/T SM45, GB/T T10450, GB/T CRB800H, GB/T 45H, GB/T 45AH, GB/T C33457, GB/T ZGD345-570, ASTM 1045, UNS H10450, UNS G10450, UNS G10420
GB/T 45 general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Medium Carbon Steel |
GB/T 45 thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1.32E-5 1/K |
Typical for Medium Carbon Steel |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1380 - 1514 °C |
Typical for Medium Carbon Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 470 - 520 J/(kg·K) |
Typical for Medium Carbon Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 21 - 52 W/(m·K) |
Typical for Medium Carbon Steel |
GB/T 45 chemical
| Property |
Value |
| Carbon |
Carbon of 0.42 - 0.5 % |
| Chromium |
Chromium of 0 - 0.25 % |
| Copper |
Copper of 0 - 0.25 % |
| Iron |
Balance |
| Manganese |
Manganese of 0.5 - 0.8 % |
| Nickel |
Nickel of 0 - 0.3 % |
| Phosphorus |
Phosphorus of 0 - 0.04 % |
| Silicon |
Silicon of 0.17 - 0.37 % |
| Sulfur |
Sulfur of 0 - 0.035 % |
GB/T 45 electrical
| Property |
Temperature |
Value |
Comment |
| Electrical resistivity |
23.0 °C |
Electrical resistivity of 1.43E-7 - 1.74E-7 Ω·m |
Typical for Carbon Steel |
GB/T 45 mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Medium Carbon Steel |
| Elongation A5 |
23.0 °C |
Elongation A5 of 16 % |
- |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Medium Carbon Steel |
| Reduction of area |
23.0 °C |
Reduction of area of 40 % |
- |
| Shear modulus |
23.0 °C |
Shear modulus of 75 - 80 GPa |
Typical for Carbon Steel |
| Tensile strength |
23.0 °C |
Tensile strength of 600 MPa |
- |
| Yield strength |
23.0 °C |
Yield strength of 355 MPa |
- |
Trust our high-quality steel to forge a brighter and stronger future for your projects.
-- Our promise
Similar or equivalent steel materials
Get a quote