Sep 13 2012
Topics Covered
IntroductionChemical CompositionPhysical propertiesMechanical PropertiesThermal PropertiesOther Designations
Introduction
Alloy steels contain different kinds of steels exceeding the composition limits of Mn, C, Mo, Si, Ni, Va, and B set for the carbon steels. They are designated by AISI four-digit numbers. The first two digits represent the main alloying elements, and the last two digits represent the carbon content present in the alloy in hundredth of a percent. They react more quickly to mechanical and heat treatments than carbon steels.
The datasheet given below provides more details about AISI E9310 alloy steel.
Chemical Composition
The following table shows the chemical composition of AISI E9310 alloy steel.
| Element |
Content (%) |
| Iron, Fe |
93.77-95.19 |
| Nickel, Ni |
3.0-3.50 |
| Chromium, Cr |
1.0-1.40 |
| Manganese, Mn |
0.450 - 0.650 |
| Silicon, Si |
0.200-0.350 |
| Molybdenum, Mo |
0.0800-0.150 |
| Carbon, C |
0.0800-0.130 |
| Sulfur, S |
≤ 0.0250 |
| Phosphorous, P |
≤ 0.0250 |
Physical properties
The physical properties of AISI E9310 alloy steel are given in the following table.
| Properties |
Metric |
Imperial |
| Density |
7.85 g/cm3 |
0.284 lb/in³ |
Mechanical Properties
The mechanical properties of annealed AISI E9310 alloy steel are outlined in the following table.
| Properties |
Metric |
Imperial |
| Tensile strength |
820 MPa |
119000 psi |
| Yield strength |
450 MPa |
65300 psi |
| Bulk modulus (typical for steel) |
140 GPa |
20300 ksi |
| Shear modulus (typical for steel) |
80 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) |
17.30% |
17.30% |
| Hardness, Brinell |
241 |
241 |
| Hardness, Knoop (converted from Brinell hardness) |
265 |
265 |
| Hardness, Rockwell B (converted from Brinell hardness value) |
97 |
97 |
| Hardness, Rockwell C (converted from Brinell hardness) |
22 |
22 |
| Hardness, Vickers (converted from Brinell hardness value) |
254 |
254 |
| Machinability (hot rolled and cold drawn. Based on 100 machinability for AISI 1212 steel) |
50 |
50 |
Thermal Properties
The thermal properties of AISI E9310 alloy steel are listed in the following table.
| Properties |
Metric |
Imperial |
| Thermal expansion co-efficient (@ 20°C/68°F, estimated) |
11.5 µm/m°C |
6.39 µin/in°F |
| Thermal conductivity (typical steel) |
51.9 W/mK |
360 BTU in/hr.ft.°F |
Other Designations
Other designations that are equivalent to AISI E9310 alloy steel include:
- AMS 6260
- AMS 6265
- AMS 6267
- ASTM A29 (E9310)
- ASTM A331 (E9310)
- ASTM A519 (E9310)
- ASTM A646 (9310-2)
- SAE J1397 (9310)
- SAE J404 (9310)