Aug 28 2012
Topics Covered
IntroductionChemical
CompositionPhysical PropertiesMechanical PropertiesThermal PropertiesOther Designations
Introduction
Steels containing carbon as the major alloying element are referred as
carbon steels. They may also consist of up to 1.2% of manganese and 0.4% of silicon, as well as other alloying elements such as chromium, aluminium, molybdenum, and copper in small quantities.
The following datasheet gives an overview of the AISI 1046 carbon steel.
Chemical Composition
The chemical composition of the AISI 1046 carbon steel is tabulated
below.
| Element |
Content
(%) |
| Iron, Fe |
98.41 - 98.88 |
| Manganese, Mn |
0.70 - 1.0 |
| Carbon, C |
0.420 - 0.50 |
| Sulfur, S |
≤ 0.050 |
| Phosphorous, P |
≤ 0.040 |
Physical Properties
The following table outlines the physical properties of the AISI 1046 carbon
steel.
| Properties |
Metric |
Imperial |
| Density |
7.85 g/cc |
0.284 lb/in³ |
Mechanical Properties
The mechanical properties of the cold drawn AISI 1046 carbon steel are given
in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
650 MPa |
94300 psi |
| Yield strength |
545 MPa |
79000 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 (in 50 mm) |
12% |
12% |
| Reduction of area |
35% |
35% |
| 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.) |
55 |
55 |
Thermal Properties
The following table shows thermal properties of the AISI 1046 carbon
steel.
| Properties |
Metric |
Imperial |
| Thermal expansion co-efficient (@
0-100°C/32-212°F) |
11.5 µm/m°C |
6.39 µin/in°F |
| Thermal conductivity |
49.8 W/mK |
346 BTU in/hr.ft².°F |
Other Designations
Other designations that are equivalent to the AISI 1046 carbon steel
include:
- ASTM A29
- ASTM A510
- ASTM A576
- ASTM A830
- SAE J1397
- SAE J403
- SAE J412
- SAE J414