DIN 1.7225/42CrMo4 Alloy Steel
DIN 1.7225/42CrMo4 Alloy Steel manufacturers and suppliers, supplied with round rods,square/flat bars,rollers,shafts,blocks and forging pieces.
DIN 1.7225 / 42CrMo4 grade is a common Chromium-Molybdenum alloy steel which are commonly used after quenched and tempered. DIN 1.7225 / 42CrMo4 has good strength and toughness,and good low-temperature impact toughness. DIN 1.7225 / 42CrMo4 is widely used in large size and important parts,such as axle,gear,connecting rod,engine cylinder,spring,oil drill pipe joints and fishing tool.
|Mechanical Property( for guidance only)|
|Tensile strength||Yield strength||Elongation||Reduction of area|
BS: 708M40 / EN19
Hardening is used to meet specific mechanical properties which can make the material fit for use.
Tempering is used to remove the stresses and brittleness caused by quenching, develop the required mechanical properties,and improve dimensional stability and toughness.
Annealing is a process used to soften the material,enhance the machinability and toughness,increase the ductility and improve the homogeneity in material.
Normalizing is used to make material softer , refine the grain size and improve the uniformity of microstructure and properties.
|Shape:Round / Square / Flat Bars, Shafts, Rollers, Blocks.
Forged round bar
Rolled round bar
Length: 3,000-10,000mm(can be customized)
Forged square bar
Surface condition: Black/Peeled/Smooth Turned
Tolerance:As per customer requirement
Straightness:Max 3mm/m(Enhanced straightness may be available on request)
|Structure & NDE|
|Grain size : ASTM 5 or finer
Forging ratio :minimum 3:1
Ultrasonic test: 100% ultrasonically tested As per SEP1921 Class C/c , D/d or ASTM A388
|A material test report will be provided, documenting the following:
6.NDE test method/criteria