SAE J1268 Grade 15B21H
Equivalent material: DIN 1.5523, DIN 19MnB4, AFNOR 19MnB4, BS 170H20, UNI 19MnB4, AISI 15B21H, JIS SWRCHB420, JIS SWCHB420, EN 19MnB4, EN 1.5523, GOST 20G2R, GB ML20MnB, ASTM Grade 15B21RH, ASTM 15B21RH, UNS H15211
SAE J1268 Grade 15B21H general
| Property |
Temperature |
Value |
Comment |
| Density |
23.0 °C |
Density of 7.8 - 7.9 g/cm³ |
Typical for Low Carbon Steel |
SAE J1268 Grade 15B21H thermal
| Property |
Temperature |
Value |
Comment |
| Coefficient of thermal expansion |
23.0 °C |
Coefficient of thermal expansion of 1.32E-5 - 1.38E-5 1/K |
Typical for Low Carbon Steel |
| Max service temperature |
- |
Max service temperature of 500 °C |
Typical for Carbon Steel |
| Melting point |
- |
Melting point of 1480 - 1526 °C |
Typical for Low Carbon Steel |
| Specific heat capacity |
23.0 °C |
Specific heat capacity of 465 J/(kg·K) |
Typical for Low Carbon Steel |
| Thermal conductivity |
23.0 °C |
Thermal conductivity of 25 - 93 W/(m·K) |
Typical for Low Carbon Steel |
SAE J1268 Grade 15B21H chemical
| Property |
Value |
| Boron |
Boron of 5E-4 - 3E-3 % |
| Carbon |
Carbon of 0.17 - 0.24 % |
| Iron |
balance |
| Manganese |
Manganese of 0.7 - 1.2 % |
| Phosphorus |
Phosphorus of 0.03 % |
| Silicon |
Silicon of 0.15 - 0.35 % |
| Sulfur |
Sulfur of 0.05 % |
SAE J1268 Grade 15B21H magnetic
| Property |
Value |
Comment |
| Curie temperature |
Curie temperature of 770 °C |
Typical for Low Carbon Steel |
SAE J1268 Grade 15B21H 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 |
SAE J1268 Grade 15B21H mechanical
| Property |
Temperature |
Value |
Comment |
| Elastic modulus |
23.0 °C |
Elastic modulus of 200 - 215 GPa |
Typical for Low Carbon Steel |
| Poisson's ratio |
23.0 °C |
Poisson's ratio of 0.29 [-] |
Typical for Low Carbon Steel |
| Shear modulus |
23.0 °C |
Shear modulus of 82 GPa |
Typical for Low Carbon Steel |
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