Sep 20 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Introduction
Steels containing carbon as the major alloying element are called carbon steels. They may also contain up to 1.2% manganese and 0.4% silicon. Residual elements such as copper, molybdenum, aluminium, chromium and nickel are also present in these steels.
AISI 1065 carbon steel is a high-carbon steel, which has high tensile strength and heat treatable.
The following sections will give an overview of AISI 1065 carbon steel in detail.
Chemical Composition
The chemical composition of AISI 1065 carbon steel is outlined in the following table.
| Element |
Content (%) |
| Iron, Fe |
98.31 - 98.8 |
| Manganese, Mn |
0.60 - 0.90 |
| Carbon, C |
0.60 - 0.70 |
| Sulfur, S |
0.05 |
| Phosphorous, P |
0.04 |
Physical Properties
The physical properties of AISI 1065 carbon steel are tabulated below.
| Properties |
Metric |
Imperial |
| Density |
7.85 g/cm3 |
0.284 lb/in³ |
Mechanical Properties
The following table shows mechanical properties of cold drawn AISI 1065 carbon steel.
| Properties |
Metric |
Imperial |
| Tensile strength, ultimate |
635 MPa |
92100 psi |
| Tensile strength, yield |
490 MPa |
71100 psi |
| Modulus of elasticity |
200
GPa |
29007
ksi |
| Bulk modulus (typical for steel) |
140 GPa |
20300 ksi |
| Shear modulus (typical for steel) |
80 GPa |
11600 ksi |
| Poissons ratio (typical for steel) |
0.27-0.30 |
0.27-0.30 |
| Elongation at break (in 50 mm) |
10% |
10% |
| Reduction of area |
45% |
45% |
| Hardness, Brinell |
187 |
187 |
| Hardness, Knoop (converted from Brinell hardness) |
209 |
209 |
| Hardness, Rockwell B (converted from Brinell hardness) |
90 |
90 |
| Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) |
10 |
10 |
| Hardness, Vickers (converted from Brinell hardness) |
196 |
196 |
| Machinability (based on AISI 1212 steel. as 100 machinability) |
60 |
60 |
Thermal Properties
The thermal properties of AISI 1065 carbon steel are given in the following table.
| Properties |
Metric |
Imperial |
| Thermal conductivity |
49.8 W/mK |
346 BTU in/hr.ft².°F |
Other Designations
Other designations that are equivalent to AISI 1065 carbon steel include the following:
- ASTM A29 (1065)
- ASTM A510 (1065)
- ASTM A682 (1065)
- ASTM A713 (1065)
- MIL S-46049 (1065)
- MIL S-46409 (1065)
- QQ S700 (C1065)
- SAE J1397 (1065)
- SAE J403 (1065)
- SAE J412 (1065)
- SAE J414
- DIN 1.1230