Alloy or alloyed steels are defined by the ISO specification 4948/1 in the following manner. Alloy steels are those containing any element listed below in a quantity equal to or greater than the quantity for that listed element.
Al 0.10%, B 0.008%, Bi 0.10%, Cr 0.30%, Co 0.10%, Cu 0.40%, Mn 1.65%, Mo 0.06%, Pb 0.40%, Se 0.10%, Si 0.50%, Te 0.10%, Ti 0.05%, W 0.10%, V 0.10%, Zr 0.05%, Lanthanides (each) 0.05%, other specified elements (except C, S, P, N) 0.05%.
Alloy Steel - S156
S156 is a high strength VAR steel having a tensile strength of between 1320-1520 MPa.
The supply of material is in the annealed/softened condition and develops a hard wear resistance case after surface treatment.
Alloy Steel S156 from Dynamic Metals is available in the following specifications:
Chemical Composition (Wt %)
The chemical composition of Alloy Steel S156 from Dynamic Metals is given in the table below:
The mechanical properties of Alloy Steel S156 are given in the table below:
|0.2% proof Stress (MPA)||Min: 1030 |
|Tensile Strength (MPA)||Min: 320 Max: 1520|
|Elongation (%)||Min: 11|
|Reduction of area (%)||Min: 40|
|Izod Impact (ft lbf)||Min: 30|
The hardness of alloy steel S156 in Normalized and Softened Condition is 277 HB Max.
The applications of Alloy Steel S-156 are:
Helicopter and aircraft gears
Motor sport gears
Source - Dynamic Metals