HY 80 Steel

Chemical Analysis
C Carbon
0.12 – 0.18
Mn Manganese
0.10 – 0.40 max
P Phosphorus
0.025 max
S Sulfur
0.025 max
Si Silicon
0.15 – 0.35
Ni Nickel
2.00 – 3.25
Cr Chromium
1.0 – 1.8
Mo Molybdenum
0.20 – 0.60

General characteristics of HY 80 Steel

This is a versatile low-carbon nickel-chromium-molybdenum low-alloy steel that finds use in aggressive environments. It has a good combination of strength and toughness over a wide temperature range, and may be used at temperatures up to 1000ÂşF (540ÂşC)

Applications

This material is used in pressure vessels, high-performance pipes and civil construction.

Forging HY 80 Steel

This grade would be forged at 2100-2200ÂşF (1150-1205ÂşC) depending upon amount of reduction to be given. Parts might be air cooled after forging.

Heat treatment

This steel gets its strength and toughness combination from a special quench and tempering heat treatment. It is strongly recommended that the actual austenitizing temperature, quenching procedure and tempering temperature be put in the hands of a qualified heat treat provider.

Machinability

Machining of this grade could normally be carried out in the as-forged condition, and finish machining in the quenched and tempered condition, at 80,000 psi yield strength.

Weldability

HY 80 shows good weldability in heavy sections, with little preheat and no postweld heat treatment required.

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