AFNOR 25 CD 4 S

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#AFNOR #25 #CD #4 #S

Description

AFNOR AFNOR 25 CD 4 S Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Alloy Steel: AFNOR 25 CD 4 S

Category	Type	Steel Grade	Standard
Steel Grades	Alloy Steel	AFNOR 25 CD 4 S	AFNOR
		B.S. 805 M 20
		B.S. 817 M 40
		B.S. CDS 110
		B.S. En. 47
		B.S. S. 139
		B.S. Type 3
		B.S. Type 7
		B.S. Type 8
		AFNOR 20 MC 5
		AFNOR 20 NCD 2

Chemical composition(mass fraction)(wt.%) of the AFNOR 25 CD 4 S

Element	Weight %
C	0.28-0.33
Mn	0.40-0.60
P	0.035 (max)
S	0.04 (max)
Si	0.15-0.30
Cr	0.80-1.10
Mo	0.15-0.25

Mechanical Properties of steel grade AFNOR 25 CD 4 S

Yield R_p0.2 (MPa)	Tensile R_m (MPa)	Impact KV/Ku (J)	Elongation A (%)	Reduction in cross section on fracture Z (%)	As-Heat-Treated Condition	Brinell hardness (HBW)
419 (≥)	251 (≥)	11	23	14	Solution and Aging, Annealing, Ausaging, Q+T,etc	232

Physical Properties of steel grade AFNOR 25 CD 4 S

Temperature (°C)	Modulus of elasticity (GPa)	Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and	Thermal conductivity (W/m·°C)	Specific thermal capacity (J/kg·°C)	Specific electrical resistivity (Ω mm²/m)	Density (kg/dm³)	Poisson’s coefficient, ν
21	-	-			0.44	-
789	889	-	22.3	421		-
693	-	34	22.2			223	133

Heat Treatment of steel grade AFNOR 25 CD 4 S

Heat treated : 1583°C - 1511°C

Technological Curves of steel grade AFNOR 25 CD 4 S

No Curve

Cross Reference Table (Equivalent Grade) of AFNOR 25 CD 4 S

Grade	Standard	Country	Application
X20Cr13(AFNOR)	AFNOR	France	Martensite And Precipitation Hardening
1.4439(AFNOR)	AFNOR	France	Austenite
1.4539(AFNOR)	AFNOR	France	Austenite
X6CrNiNb18-10(AFNOR)	AFNOR	France	Austenite
1.4580(AFNOR)	AFNOR	France	Austenite
1.4436(AFNOR)	AFNOR	France	Austenite
1.4438(AFNOR)	AFNOR	France	Austenite
1.4361(AFNOR)	AFNOR	France	Austenite
1.4563(AFNOR)	AFNOR	France	Austenite
1.4537(AFNOR)	AFNOR	France	Austenite
1.4547(AFNOR)	AFNOR	France	Austenite
X1NiCrMoCuN25-20-7(AFNOR)	AFNOR	France	Austenite
X2CrNiN23-4(AFNOR)	AFNOR	France	Austenitic-Ferrite
1.4362(AFNOR)	AFNOR	France	Austenitic-Ferrite
1.4462(AFNOR)	AFNOR	France	Austenitic-Ferrite
1.4507(AFNOR)	AFNOR	France	Austenitic-Ferrite
1.4501(AFNOR)	AFNOR	France	Austenitic-Ferrite
Q255 A		China	Engineering and welding
Q255 B		China	Engineering and welding
H25	ASTM	USA	Alloy tool steel

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