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21CMoV5-7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 21CMoV5-7

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EN 21CMoV5-7

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This page is mainly introduced the 21CMoV5-7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 21CMoV5-7,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

Steel Garde:21CMoV5-7
Type:Structural Steel
Country:European
Standard:EN
Standard Number:

ITEM Standard Number Descriptions

1 EN 10269-1999 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
Application:high temperature boiler steels for energy industries

ITEM	Standard Number	Descriptions
1	EN 10269-1999	Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

Relevant products:

21CMoV5-7,1.7709,2...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
21CMoV5-7	DIN	Germany
1.7709	EN	European
21CrMoV5-7, 1.7709, 21CrMoV5-11, 1.8070	DIN	Germany

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.17	0.25
Mn	0.40	0.80
Si		0.40
P		0.030
S		0.030
Cr	1.20	1.50
Ni		0.60
Mo	0.55	0.80
V	0.25	0.35
Al		0.03

Mechanical Properties

Tensile strength	681～363	σb/MPa
Yield Strength	413	σ 0.2 ≥/MPa
Elongation	62	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	425～828	-
HRC	30	-

Physical Properties

Thermal expansion	29-53	e-6/K
Thermal conductivity	32-68	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9298-5894	째C
Density	3451-1339	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

Size Availability

Steel Grade	Specification	Processing range(mm)
21CMoV5-7 Structural Steel	Round Bar and Hollow Bar	Φ1 to Φ2000
	Square and Flat Steel	Φ10 to Φ100
	Plate and Sheet	0.08-800(Thickness)10-1500(Width)Length
	Tube or Pipe	OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
	Coil and Strip Steel	THK:0.1mm Width:1500mm
	Forged	Ring/Cylindrical/Disk