25 CrMoS 4

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Germany DIN 25CrMoS4 Bright steel products - Technical delivery conditions - Part 5: Steels for quenching and tempering and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 25CrMoS4 / 25 CrMoS 4

Category	Grade	Standard	Region/Area	Standard Content
Metals	25 CrMoS 4	DIN EN 10277-5	Germany	Bright steel products - Technical delivery conditions - Part 5: Steels for quenching and tempering

Chemical composition(mass fraction)(wt.%) of the 25 CrMoS 4

Element	Min	Max	Similar
Si	-	0.4000	-
S	0.0200	0.0400	-
P	-	0.0350	-
Mo	0.0150	0.3000	-
Mn	0.6000	0.9000	-
Cr	0.9000	1.2000	-
C	0.2200	0.2900	-
Si	-	0.4000	-
S	0.0200	0.0400	-
P	-	0.0250	-
Mo	0.1500	0.3000	-
Mn	0.6000	0.9000	-
Cr	0.9000	1.2000	-
C	0.2200	0.2900	-
Si	-	0.4000	-
S	0.0200	0.0400	-
P	-	0.0350	-
Mo	0.1500	0.3000	-
Mn	0.6000	0.9000	-
Cr	0.9000	1.2000	-
C	0.2200	0.2900	-
Si	-	0.4000	-
S	0.0200	0.0400	-
P	-	0.0350	-
Other	-	-	-
Mo	0.1500	0.3000	-
Mn	0.6000	0.9000	-
Cr	0.9000	1.2000	-
C	0.2200	0.2900	-

Mechanical Properties of steel grade 25 CrMoS 4

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)
626 (≥)	446 (≥)	32	24	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	211

Physical Properties of steel grade 25 CrMoS 4

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	-	-			0.31	-
845	724	-	42.3	142		-
723	-	44	23.2			113	314

Heat Treatment of steel grade 25 CrMoS 4

Heat treated : 1824°C - 1729°C

Technological Curves of steel grade 25 CrMoS 4

No Curve

Cross Reference Table (Equivalent Grade) of 25 CrMoS 4

Grade	Standard	Country	Application
ASTM 5140
AISI 201
AISI 202
1.2767
17-4PH
AISI 1052
AISI 416Se
AISI 1330
AISI 205 Stainless Steel
AISI A10
AISI A2
AISI A3
AISI A4
1.0036
1.0037
SAE J403
UNS G10100
AMS 4924
ASTM A36
Electrode 100S-1

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