AISI 1012 Carbon Steel (UNS G10120)
Carbon steels are steels that contain only carbon as their chief alloying element. Traces of 0.4% silicon and 1.2% manganese are present in these steels. Small quantities of copper, nickel, molybdenum, aluminium and chromium can also be found in the carbon steels.
AISI 1012 Carbon Steel (UNS G10120)
Introduction
Carbon steels are steels that contain only carbon as their chief alloying element. Traces of 0.4% silicon and 1.2% manganese are present in these steels. Small quantities of copper, nickel, molybdenum, aluminium and chromium can also be found in the carbon steels.
AISI 1012 carbon steel is characterized with good machinability and formability, and can be hardened by cyaniding.
The following datasheet provides an overview of AISI 1012 carbon steel.
Chemical Composition
The chemical composition of AISI 1012 carbon steel is outlined in the following table.
| Element | Content (%) |
|---|---|
| Iron, Fe | 99.16-99.6 |
| Manganese, Mn | 0.30-0.60 |
| Carbon, C | 0.10-0.15 |
| Sulfur, S | ≤ 0.050 |
| Phosphorous, P | ≤ 0.040 |
Physical Properties
The following table shows the physical properties of AISI 1012 carbon steel.
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.87 g/cm3 | 0.284 lb/in³ |
Mechanical Properties
The mechanical properties of cold drawn AISI 1012 carbon steel are displayed in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Brinell | 105 | 105 |
| Hardness, Knoop (converted from Brinell hardness) | 123 | 123 |
| Hardness, Rockwell B (converted from Brinell hardness) | 60 | 60 |
| Hardness, Vickers (converted from Brinell hardness) | 108 | 108 |
| Tensile strength | 370 MPa | 53700 psi |
| Yield strength | 310 MPa | 45000 psi |
| Elongation at break (In 50 mm) | 19.00% | 19.00% |
| Reduction of area | 40.00% | 40.00% |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Machinability (based on AISI 1212 steel as 100 machinability. The machinability of Group I bar, rod, and wire products can be improved by cold drawing.) | 55 | 55 |
| Shear modulus (typical for steel) | 80.0 GPa | 11600 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
Thermal Properties
The thermal properties of AISI 1012 carbon steel are given in the following table.
| Properties | Metric | Imperial |
|---|---|---|
| Thermal conductivity (typical steel) | 49.8 W/mK | 346 BTU in/hr.ft².°F |
Other Designations
Equivalent materials to AISI 1012 carbon steel are given in the following table.
| ASTM A29 | ASTM A510 | ASTM A519 | ASTM A545 |
| ASTM A549 | ASTM A575 | ASTM A576 | MIL SPEC MIL-S-11310 (CS1012) |
| SAE J403 | SAE J412 | SAE J414 |
