| AISI 1021 Steel, cold rolled, 25 mm (1 in.) round | |
|---|---|
| Categories: | MetalFerrous MetalCarbon SteelAISI 1000 Series SteelLow Carbon Steel |
| Material Notes: | Used in cold heading and extruding. Applications include low-strength fasteners, die pins, motor spindles, and recessed-head screws. Post water quenched hardness: 41 HRC surface, 95 HRB half-radius, 92 HRB center. |
| Key Words: | UNS G10210, ASTM A29, ASTM A510, ASTM A519, ASTM A545, ASTM A548, ASTM A576, carbon steels, ASTM A659, SAE J403, SAE J412, SAE J414, BS 970 070M20, EN3, BS 970 080M20 |
| Vendors: | No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material. |
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Export data to your CAD/FEA program| Physical Properties | Metric | English | Comments |
|---|---|---|---|
| Density | 7.858 g/cc | 0.2839 lb/in³ | |
| Mechanical Properties | Metric | English | Comments |
| Hardness, Brinell | 137 | 137 | |
| Hardness, Knoop | 156 | 156 | Converted from Brinell |
| Hardness, Rockwell B | 75 | 75 | Converted from Brinell |
| Hardness, Vickers | 143 | 143 | Converted from Brinell |
| Tensile Strength, Ultimate | 484 MPa | 70200 psi | |
| Tensile Strength, Yield | 360 MPa | 52200 psi | |
| Elongation at Break | 33 % | 33 % | in 50 mm |
| Reduction of Area | 65.2 % | 65.2 % | |
| Modulus of Elasticity | 200 GPa | 29000 ksi | Typical for steel |
| Bulk Modulus | 160 GPa | 23200 ksi | Typical for steel |
| Poissons Ratio | 0.29 | 0.29 | Typical For Steel |
| Shear Modulus | 80.0 GPa | 11600 ksi | Typical for steel |
| Electrical Properties | Metric | English | Comments |
| Electrical Resistivity | 0.0000159 ohm-cm @Temperature 0.000 °C | 0.0000159 ohm-cm @Temperature 32.0 °F | estimated by comparison with similar steel alloys |
| Thermal Properties | Metric | English | Comments |
CTE, linear  | 11.5 µm/m-°C @Temperature 20.0 °C | 6.39 µin/in-°F @Temperature 68.0 °F | Typical steel |
| 12.2 µm/m-°C @Temperature 0.000 – 300 °C | 6.78 µin/in-°F @Temperature 32.0 – 572 °F | Typical for steel | |
| 13.9 µm/m-°C @Temperature 0.000 – 500 °C | 7.72 µin/in-°F @Temperature 32.0 – 932 °F | Typical for steel | |
| Specific Heat Capacity | 0.472 J/g-°C | 0.113 BTU/lb-°F | Typical steel |
| Thermal Conductivity | 51.9 W/m-K | 360 BTU-in/hr-ft²-°F | Typical steel |
| Component Elements Properties | Metric | English | Comments |
| Carbon, C | 0.17 – 0.23 % | 0.17 – 0.23 % | |
| Iron, Fe | 98.78 – 99.23 % | 98.78 – 99.23 % | As remainder |
| Manganese, Mn | 0.60 – 0.90 % | 0.60 – 0.90 % | |
| Phosphorus, P | <= 0.040 % | <= 0.040 % | |
| Sulfur, S | <= 0.050 % | <= 0.050 % | |
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