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Tool Steel

Tool Steel H42

Principle Design Features

This alloy is one of the Hot Work, Tungsten/ Molybdenum type tool steels.

Known Forms

Disc

Disc

Drill Rod

Drill Rod

Flat Bar

Flat Bar

Plate

Plate

Precision Ground Bar

Precision Ground Bar

Ring

Ring

Round Bar

Round Bar

Sheet

Sheet

Square Bar

Square Bar

Additional Data

Specifications

A681 (H-42),T20842

Chemical Elements

Carbon0.55 - 0.7
Chromium3.75 - 4.5
IronBalance
Manganese0.15 - 0.4
Molybdenum4.5 - 5.5
Phosphorus0.03 max
Silicon0.2 - 0.45
Sulphur0.03 max
Tungsten5.5 - 6.75
Vanadium1.75 - 2.2

Physical Properties

Density: 0.283lb/in³Density