AISI4140 / 42CrMo / 42CrMo4 Alloy Steel Plate Tool Steel & Alloy Steel Ignots

Products Specification of Steel Plate

DIN 42CRMO4 / 1.7225 STEEL

42CrMo4 is a heat treatable steel which contains at least 0.9%Cr,0.15%Mo as strengthening elements.After quenched and tempered, It obtains high strength, good low-temperature impact toughness with a typical tensile strength of 900 -1200 N/mm2.42CrMo4 steel has better performance than 34CrMo4 steel due to the higher carbon and chromium content.Similar to AISI 4140,only a little difference in Mn,Cr content.This material also has good machinability,good wear-resistance,but the temper brittleness is not obvious,and poor in weldability.

42CRMO4 SUPPLY FORM & SIZE & TOLERANCE

42CRMO4 SURFACE FINISH&TOLERANCE

42CRMO4 CHEMICAL COMPOSITION PER EN 10083-3

42CRMO4 RELEVANT STANDARDS

42CRMO4 MECHANICAL PROPERTY

42CRMO4 FORGING

42CrMo4 forging temperature:900 – 1100°C ,cooling as slowly as possible in still air or in sand after forged.

42CRMO4 HEAT TREATMENT

• Normalizing: 850 – 880°C,Cooling in air
• Soft Annealing:680 – 720°C,Cooling in furnace
• Stress relieve:450-650°C,Cooling in air
• Hardening:820 – 880°C,oil or water quench
• Tempering:540 – 680°C,Cooling in air

42CRMO4 SURFACE HARDNESS

• Treated to improve shearability (+S):Max 255HB
• Soft annealed (+A):Max 241HB
• Pre Quenched and tempered:280-320HB
• Flame or induction hardening:Min 53HRC

42CRMO4 APPLICATION

42CrMo4 has high strength and wear-resistance,widely used in many industries.

Components with high strength and toughness for tools, automotive parts,mechanical engineering, armament components,such as geer wheels,pinions,connecting rods,parts for mechanical engineering.

Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts,gears