Sep 18 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesOther Designations
Introduction
Carbon steels are designated by AISI four-digit numbers. They contain only carbon as the major alloying element. 1.2% of manganese, and 0.4% of silicon are present in these steels. They also contain chromium, nickel, copper, aluminium, and molybdenum in small amount. Impurities such as sulfur and phosphorous are also found in these steels.
The following datasheet will discuss in detail about AISI 1074 carbon steel.
Chemical Composition
The following table shows the chemical composition of AISI 1074 carbon steel.
| Element |
Content (%) |
| Carbon, C |
0.70-0.80 |
| Manganese, Mn |
0.50-0.80 |
| Sulfur, S |
0.05 (max) |
| Phosphorous, P |
0.04 (max) |
Physical Properties
The physical properties of AISI 1074 carbon steel are tabulated below.
| Properties |
Metric |
Imperial |
| Density |
7.7-8.03g/cm3 |
0.278- 0.290 lb/in3 |
Mechanical Properties
The mechanical properties of AISI 1074 carbon steel are outlined in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
650 MPa |
94275 psi |
| Yield strength |
505 MPa |
73244 psi |
| 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 |
40% |
40% |
| Hardness |
192 |
192 |
Other Designations
Other designations that are equivalent to AISI 1074 carbon steel include:
- AMS 5120
- ASTM A29
- ASTM A510
- ASTM A682
- ASTM A713
- ASTM A830
- DIN 1.1248
- MIL S-46049
- QQ S700 (C1074)
- SAE J1397
- SAE J403
- SAE J412
- SAE J414
- AMS 5120D
- AMS 5120F