Designation by Standards
Chemical Composition (in weight %)
1.8159 is a heat treatable, low alloy steel containing manganese, chromium and vanadium. It is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength.
Permanently stressed machine, engine and vehicle parts when high strength and toughness are required.Most severely stressed springs for trucks, torsion springs.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.84
Heat to 640-720oC, cool slowly. This will produce a maximum Brinell hardness of 248.
Harden from a temperature of 820-860oC followed by oil quenching.
Tempering temperature: 540-680oC.
Mechanical Properties in Hardening and Tempering Condition
|Diameter (mm)||0.2 % proof stress (N/mm2)||Tensile strength (N/mm2)||Elongation (%)||Reduction of area (%)||Notch impact energy (ISO-V) (J)|
Hot forming temperature: 1050-850oC.
Machining is best done with this alloy in the annealed or normalized and tempered condition. It can be machined by all conventional methods.
This is a low alloy steel and not a corrosion resistant alloy. Protective coating should be used.
The alloy can be fusion or resistance welded. Preheat and post heat weld procedures should be followed when welding this alloy by established methods.
The 1.8159 alloy may be cold worked, in the annealed condition, by conventional methods and tooling. It has good ductility.
All technical information is for reference only.