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21MnCr5 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 21MnCr5

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This page is mainly introduced the 21MnCr5 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 21MnCr5,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Tool steels (ISO 4957:1999)

Steel Garde:21MnCr5
Type:Tool Die Steels
Country:Germany
Standard:EN

Standard Number:

ITEM	Standard Number	Descriptions
1	DIN 17350 (1980)	Tool Steels; Technical Conditions of Delivery
2	DIN EN ISO 4957 (1999)	Tool steels (ISO 4957:1999)

Application:Tool steels (ISO 4957:1999)

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.18	0.24
Si	0.15	0.35
Mn	1.10	1.40
P		0.030
S		0.030
Cr	1.00	1.30
Mo
V

Mechanical Properties

Tensile strength	932～391	σb/MPa
Yield Strength	225	σ 0.2 ≥/MPa
Elongation	76	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	291～657	-
HRC	30	-

Physical Properties

Thermal expansion	44-90	e-6/K
Thermal conductivity	96-74	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4714-0858	째C
Density	6201-8449	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)
21MnCr5 Tool Die Steels	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