DIN 42CrMo4 / 1.7225 Alloy Steel Plate Custom Cutting Round , Square , Holes

Products Specification

Although 42CrMo4 steel is more expensive than 41Cr4 steel, it is more preferable in terms of material properties. EN 42CrMo4 alloy engineering steel materials have been widely used in automotive driving elements. Otai Steel is able to supply you prime quality of 42CrMo4 alloy steel materials with wide range.

1.42CrMo4 Alloy Steel Supply Range

42CrMo4 Round bar Sizes: 10mm – 3000mm
Steel 42CrMo4 Flat and Plate: 10mm-1500mm thickness x 200-3000mm width
Other steel shape and sizes available according to your requirements.

Surface condition: Black, rough machined, peeled, turned or other requirements according to your requirements.

2,DIN 42CrMo4 Alloy Steel Relevant Specifications and Equivalents

3.42CrMo4 Alloy Steel Chemical Composition

4. DIN 42CrMo4 Alloy Steel Mechanical Properties

5. Heat Treatment of 42CrMo4 Steels

Annealing of 42CrMo4 Steels

• Heat steel 42CrMo4 forged steel slowly and thoroughly to 800-850°C;
• Cool slowly in the furnace to the temperature 480°;
• Complete annealing the steel in the air.

Quenched and Tempered (Q+T)

• Heat 42CrMo4 steel slowly to 880°C;
• Soak at this temperature then quench in oil;
• Temper as soon as 42CrMo4 steel reach room temperature (20°C);
• Heat uniformly to the suitable temperature of 560°C;
• Withdraw the 42CrMo4 material from the furnace and cool in the air.

6. Forging of 42CrMo4 Alloy Steel

• Preheat 42CrMo4 engineering steel uniformly and slowly;
• Increase the forging temperature up to 1150-1200°C.
• Always keep the forging temperature above at least 850°C

7.Weldability

Engineering steel 42CrMo4 has only limited weldability. Preheating to 200-300°C is strongly recommended; the upper limit should not be exceeded because of risk for deterioration of the chrome layer.

Alloy steel 42CrMo4 can be friction welded. However, precautions are necessary so as to limit the formation of undesirable microstructures in the welded zone.

8.Application of 42CrMo4 Alloy Steels

EN 42CrMo4 alloy steel is widely used for engineering steel purpose, such as: making various kinds of machinery, automobile, mining spare part, the gearwheel of the engine, the driving gear of supercharger, the connecting rob, the pinchock under the high pressure, parts for power train applications, cold formed fastener components, shafts, gears, drill collars for the oil exploration, etc.