Dec 17 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations
Introduction
Alloy steels contain wide varieties 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.
The following datasheet gives an overview of HY100 alloy steel.
Chemical Composition
The following table shows the chemical composition of HY100 alloy steel.
|
Element |
Content (%) |
|
Iron, Fe |
92.8 - 96.2 |
|
Nickel, Ni |
2.25 - 3.50 |
|
Chromium, Cr |
1.0-1.80 |
|
Copper, Cu |
~ 0.25 |
|
Molybdenum, Mo |
0.20 - 0.60 |
|
Silicon, Si |
0.15 - 0.35 |
|
Carbon, C |
0.12 - 0.20 |
|
Manganese, Mn |
0.10 - 0.40 |
|
Vanadium, V |
~ 0.030 |
|
Phosphorous, P |
~ 0.025 |
|
Sulfur, S |
~ 0.025 |
|
Titanium, Ti |
~ 0.020 |
Physical Properties
The physical properties of HY100 alloy steel are given in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
7.87 g/cm3 |
0.284 lb/in3 |
Mechanical Properties
The mechanical properties of HY100 alloy steel are outlined in the following table.
|
Properties |
Metric |
Imperial |
|
Yield strength |
689 MPa |
100000 psi |
|
Shear modulus (typical of steel) |
80 GPa |
11600 ksi |
|
Elastic modulus (typical of steel) |
205 GPa |
29700 ksi |
|
Poisson's ratio |
0.28 |
0.28 |
Other Designations
Other designations equivalent to HY100 alloy steel include MIL S-16216 and UNS K32045.