42CrMo4 Forged Alloy Steel
DIN 42CrMo4 alloy steel manufacturers and suppliers, supplied in round rods,square/flat bars,rollers,shafts,blocks and forging pieces.
42CrMo4 steel is a common chromium-molybdenum alloy steel according to DIN standards and EN 10083.It contains a higher carbon content compared with 30CrMo steel.42CrMo4 forged steel is usually used in the manufacture of forgings which require higher strength and heat treatment capabilities than 35CrMo steel.At the hardness of HRC18-22,DIN 42CrMo4 can be machined well.The core of this material retains its bulk properties, while the outer surface is hardened to reduce wear and tear.42CrMo4 alloy steel also has high hardenability and good toughness.
Carbon:0.38/0.45; Silicon:0.40max; Manganese:0.60/0.90;
W-Nr: 1.7225; AISI/ASTM: 4140; JIS/KS: SCM440; UNS:G41400
3.Form & Size
1)Fuhongsteel are manufacturers and suppliers of DIN 42CrMo4 forged steel round bars, square bars,flat bars,shafts,etc.
2)Forged steel size available:
Forged flat bars,Blocks,Shafts and forging pieces can be customized.
4.Tolerances on Dimension & Straightness
3)Deviation from straightness:Max 3mm/m;
3)Non metallic inclusions
5)Ultrasonic test: EN 10228-3
42CrMo4 is a grade of steel an excellent material for such uses as gears, piston pins, crankshafts,and shafts.It is commonly used for locomotive traction with the big gear, supercharger drive gear, rear axle, the load of connecting rod.42CrMo4 steel is widely used in a variety of applications in the oil and gas industry. Examples of applications for 42CrMo forged steel also include structural tubing,connection rods, stem assemblies, tool holders.
1)Preheat 42CrMo4 forged alloy steel uniformly and slowly;
2)Increase the forging temperature up to 1150-1200°C.
3)Always keep the forging temperature above at least 850°C
1)Heating 42CrMo4 forged steel slowly to the temperature 840-875°C;
2)DIN 42CrMo4 alloy steel should be quenched in the oil;
3)Heat the steel to the temperature 550-650°C;
4)Soak at this temperature for 2 hours per 25mm of total thickness;
5)42CrMo4 steel can be cooled in the air or furnace.
6)Quenched and tempered and after stress relieved
After QT,a straightening process is necessary then the products should be tempered and distorsion-poor annealed.
1)Heat DIN 42CrMo4 forged steel slowly and thoroughly to 800-850°C;
2)Cool slowly in the furnace to the temperature 480°;
3)Complete annealing the steel in the air.
1)Increase the temperature to 860-880°C;
2)Cool 42CrMo4 steel down to room temperature in the air.
Enquiry for 42CrMo4 forged steel round bar, square bar,flat bar,rollers,shafts and blocks.