Sep 21 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties
Other Designations
Applications
Introduction
Carbon steels are steels containing carbon as the chief alloying element. These steels contain aluminium, chromium, copper, nickel, and molybdenum in small quantities. They also contain 0.4% of silicon and 1.2% of manganese. Impurities such as phosphorous and sulfur are also present in these steels.
The datasheet given below will discuss in detail about AISI 1211 carbon steel.
Chemical Composition
The following table shows the chemical composition of AISI 1211 carbon steel.
|
Element |
Content (%) |
|
Iron, Fe |
98.7 - 99.23 |
|
Manganese, Mn |
0.60 - 0.90 |
|
Carbon, C |
0.13 |
|
Sulfur, S |
0.10 - 0.15 |
|
Phosphorous, P |
0.070 - 0.12 |
Physical Properties
The physical properties of AISI 1211 carbon steel are tabulated below.
|
Properties |
Metric |
Imperial |
|
Density |
7.87 g/cm3 |
0.284 lb/in³ |
Mechanical Properties
The mechanical properties of cold drawn AISI 1211 carbon steel are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Tensile strength |
515 MPa |
74700 psi |
|
Yield strength |
400 MPa |
58000 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 |
35% |
35% |
|
Hardness, Brinell |
163 |
163 |
|
Hardness, Knoop (converted from Brinell hardness) |
184 |
184 |
|
Hardness, Rockwell B (converted from Brinell hardness) |
84 |
84 |
|
Hardness, Vickers (converted from Brinell hardness) |
170 |
170 |
|
Machinability (based on 100 machinability for AISI 1212 steel.) |
95 |
95 |
Thermal Properties
The thermal properties of AISI 1211 carbon steel are given in the following table.
|
Properties |
Metric |
English |
|
Thermal expansion co-efficient (@ 20°C/68°F, typical steel) |
11.5 µm/m°C |
6.39 µin/in°F |
|
Thermal conductivity (typical for steel) |
51.9 W/mK |
360 BTU in/hr.ft.°F |
Other Designations
Other designations that are equivalent to AISI 1211 carbon steel include:
-
ASTM A108
-
ASTM A29
-
FED QQ-S-637 (1211)
-
SAE J403
Applications
AISI 1211 carbon steel is used in screw machine operations.