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AFNOR 25CrMo4 Details

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25CrMo4 Application:Steels for quenching and tempering for construction purposes - Technical delivery conditions

Category Type Grade Designations
Grades Stainless Steels 25CrMo4 France - AFNOR , NF EN 2205 - Steel FE-PL1502 (25CrMo4) - 900 MPa <= Rm <= 1 100 MPa - Bars - De <= 40 mm
NF EN 2206 - Steel FE-PL1502 (25CrMo4) - 650 MPa <= Rm <= 850 MPa - Bars - De <= 150 mm
NF EN 2209 - Steel FE-PL1502 (25CrMo4) - 900 MPa <= Rm <= 1 100 MPa - Sheets, strips and plates - 0,5 mm <= a <= 20 mm
NF EN 2542 - Steel FE-PL1502 (25CrMo4) - Annealed - Bar and wire - De <= 40 mm - For prevailing torque nuts
NF EN 2543 - Steel FE-PL1502 (25CrMo4) - Annealed - Sheet and strip - 0,3 mm <= a <= 2 mm - For prevailing torque nuts
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 10216-2 - Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties
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

Chemical composition(wt.%) of 25CrMo4 grade: NF EN 2205

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.22 0.29
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
Steels for quenching and tempering for construction purposes - Technical delivery conditions

Mechanical properties of grade 25CrMo4 NF EN 2205

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)
359 (≥) 385 (≥) 21 41 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical properties of grade 25CrMo4 NF EN 2205

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
754 (≥) 158 (≥) 31 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 321
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
856 867 512

25CrMo4 - Form of Supply

Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED

Cross Reference Table(Equivalent Grade)

Grade Standard Country Application
25CrMo4 AFNOR France
Steels for quenching and tempering for construction purposes - Technical delivery conditions

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