42CrMo4 is a kind of alloy steel with high hardenability, toughness and machinability. It has small temper deformation, high fatigue limit and resistance to repeated impact after quenching and tempering, available in the form of plates and bars.
Standards: ASTM A29/A29M, ISO 683,EN 10263-4, EN 10250-3 , DIN EN 10083/3
Type: Round bar, Plate
Size: 3-360 mm
Finish: Peeled, Hot Rolled, Turned and Polished, Centreless Ground.
The Equivalent Standards:
GB 3077 42CrMo
The Chemical Composition
The Mechanical Properties
Yield Strength 0.2% (MPa)
Elongation -% in 50 mm (min.)
Heating temperature 1150 ~1200°C, starting temperature 1130 ~1180°C, termination temperature > 850°C, with > 50mm, slow cooling.
l Normalizing: temperature at 850~900°C, air cooled.
l High temperature tempering: temperature at 680~700°C, air cooling.
l Quenching and tempering: preheating temperature 680 ~700°C, quenching temperature 840~880°C, oil-cooled, tempering temperature 580°C, water-cooled or oil-cooled, hardness ≤217HBW.
42CrMo4 is wildly used in large locomotive traction gears, supercharger drive gear, pressure vessels, gear, rear axle, greatly affected by load and spring clip link It can also be use to 2000m deep oil drill pipe joints and fishing tools, and can be use bending machine mold, etc.
World iron&steel is a professional supplier of alloy steel rods and bars. We manufacture and distribute high quality 42CrMo4 Gear steel round bar in accordance with EN10083 standards, specified delivery conditions and final customer specifications for industrial and commercial applications. Special sizes of steel bars and delivery issues can be further negotiated and we provide a wide range of solutions for purchasing departments to select alternative grades, contact us today!