Sep 21 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesThermal PropertiesOther Designations
Introduction
The Alloy steels family contains a wide variety of steels having compositions which exceed the limitations of Mn, C, Mo, Si, Ni, Va, and B set for carbon steels. They are designated by AISI four-digit numbers.
The first two digits represent the main alloying elements, and the last two digits indicate the carbon content present in the alloy in hundredth of a percent.
The following datasheet gives an overview of AISI 1330 alloy steel.
Chemical Composition
The following table shows the chemical composition of AISI 1330 alloy steel.
Element |
Content (%) |
Iron, Fe |
97.35 - 97.97 |
Manganese, Mn |
1.60 - 1.90 |
Carbon, C |
0.280 - 0.330 |
Silicon, Si |
0.15 - 0.35 |
Sulfur, S |
≤ 0.040 |
Phosphorous, P |
≤ 0.035 |
Physical Properties
The physical properties of AISI 1330 alloy steel are tabulated below.
Properties |
Metric |
Imperial |
Density |
7.87 g/cm3 |
0.284 lb/in³ |
Mechanical Properties
The mechanical properties of AISI 1330 alloy steel are outlined in the following table.
Properties |
Metric |
Imperial |
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 |
Hardness, Brinell (average) |
179 - 335 |
179 - 335 |
Hardness, Knoop (converted from Brinell hardness) |
282 |
282 |
Hardness, Rockwell B (converted from Brinell hardness) |
98 |
98 |
Hardness, Rockwell C (converted from Brinell hardness) |
25 |
25 |
Hardness, Vickers (converted from Brinell hardness) |
271 |
271 |
Machinability (based on 100 machinability for AISI 1212 steel.) |
55 |
55 |
Thermal Properties
The thermal properties of AISI 1330 alloy steel are given in the following table.
Properties |
Metric |
Imperial |
Thermal expansion co-efficient (@ 20°C/68°F, typical steel) |
11.5 µm/m°C |
6.39 µin/in°F |
Thermal conductivity (typical steel) |
51.9 W/mK |
360 BTU in/hr.ft².°F |
Other Designations
Other designations that are equivalent to AISI 1330 alloy steel include:
- ASTM A322
- ASTM A331
- ASTM A519
- MIL SPEC MIL-S-16974
- SAE J404
- SAE J412
- SAE J770