42CrMo4

42CrMo4 Stainless Steels to NF A 35-590

42CrMo4 - Specification & Application

  • NF A 35-590 - Tool steels
  • NF EN 10083-1 - Steels for quenching and tempering - Part 1: General technical delivery conditions
  • NF EN 10083-3 - Steels for quenching and tempering - Part 3: Technical delivery conditions for alloy steels
  • NF EN 10132-3 - Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 3: Steels for quenching and tempering
  • NF EN 10250-3 - Open die steel forgings for general engineering purposes - Part 3: Alloy special steels
  • NF EN 10263-4 - Steel rod, bars and wire for cold heading and cold extrusion - Part 4: Technical delivery conditions for steels for quenching and tempering
  • NF EN 10269 - Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
  • NF EN 10297-1 - Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes
  • NF EN 10305-1 - Steel tubes for precision applications - Technical delivery conditions - Part 1: Seamless cold drawn tubes
  • NF EN 10343 - Steels for quenching and tempering for construction purposes - Technical delivery conditions

Steels for quenching and tempering for construction purposes - Technical delivery conditions

Chemical composition(wt.%) of 42CrMo4 grade: to NF A 35-590

Elements Min.（≥） Max.（≤） Similar Remarks
C 0.38 0.45
Si - 0.40
Mn 0.60 0.90
P - 0.035
S - 0.035
Cr 0.90 1.20
Ni - -
Mo 0.15 0.30

42CrMo4 - Detail

Steels for quenching and tempering for construction purposes - Technical delivery conditions

Mechanical properties of grade 42CrMo4 NF A 35-590

Proof strength
Rp0.2 (MPa)		 Tensile strength
Rm (MPa)		 Impact energy
KV (J)		 Elongation at fracture
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
244 (≥) 651 (≥) 31 43 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical properties of grade 42CrMo4 NF A 35-590

Property Density
kg/dm3		 Temperature T
°C/F		 Specific heat
J / kgK		 Thermal conductivity
W/mK		 Electric resistance
µΩ·cm		 Modulus of elasticity
kN/mm2		 Expansion rate
279 (≥) 492 (≥) 23 12 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 313
Temp.
°C/°F		 Creep strain limit
(10000h)
(Rp1,0) N/mm2		 Creep rupture strength
(10000h)
(Rp1,0) N/mm2
864 729 527

Equivalent Grade

1 42CrMo4 2 42CrMo4 3 GS-42CrMo4 4 42CrMo4 5 EN 42CrMo4KD 6 EN 42CrMo4 7 42CrMo4 8 1.7225

Equivalent Products

Product shapes we supply:

We can customize the production of 42CrMo4 grade, contact us for the best solution.
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