Sep 21 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Introduction
Steels taht contain carbon as the primary alloying element are referred to as carbon steels. They also contain 0.4% of silicon and 1.2% of manganese. Residual elements such as molybdenum, chromium, nickel, copper, and aluminium are present in traces.
The following datasheet gives an overview of the chemical composition and mechanical properties of AISI 1144 carbon steel.
Chemical Composition
The following table shows the chemical composition of AISI 1144 carbon steel.
| Element |
Content (%) |
| Iron, Fe |
97.50 - 98.01 |
| Manganese, Mn |
1.35 - 1.65 |
| Sulfur, S |
0.240 - 0.330 |
| Carbon, C |
0.40 - 0.480 |
| Phosphorous, P |
0.040 |
Physical Properties
The physical properties of AISI 1144 carbon steel are tabulated below.
| Properties |
Metric |
Imperial |
| Density |
7.85 g/cm3 |
0.284 lb/in³ |
Mechanical Properties
The mechanical properties of cold drawn AISI 1144 carbon steel are outlined in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
745 MPa |
108000 psi |
| Yield strength |
620 MPa |
89900 psi |
| Bulk modulus (typical for steel) |
140 GPa |
20300 ksi |
| Shear modulus (typical for steel) |
80.0 GPa |
11600 ksi |
| Elastic modulus |
190-210 GPa |
27557-30458 ksi |
| Poisson's ratio |
0.27-0.30 |
0.27-0.30 |
| Elongation at break |
10% |
10% |
| Reduction of area |
30% |
30% |
| Hardness, Brinell |
217 |
217 |
| Hardness, Knoop (converted from Brinell hardness) |
240 |
240 |
| Hardness, Rockwell B (converted from Brinell hardness) |
95 |
95 |
| Hardness, Rockwell C |
17 |
17 |
| Hardness, Vickers (converted from Brinell hardness) |
228 |
228 |
Thermal Properties
The thermal properties of AISI 1144 carbon steel are given below.
| Properties |
Metric |
Imperial |
| Thermal conductivity (typical steel) |
49.8 W/mK |
346 BTU in/hr.ft2.°F |
Other Designations
Other designations that are equivalent to AISI 1144 carbon steel include:
- ASTM A29
- ASTM A311
- ASTM A510
- SAE J1397
- SAE J403
- SAE J412