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C70W2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C70W2

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DIN C70W2

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This page is mainly introduced the C70W2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of C70W2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
High carbon steel

Steel Garde:C70W2
Type:Tool Die Steels
Country:Germany
Standard:DIN
Application:High carbon steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.65	0.74
Si	0.10	0.30
Mn	0.10	0.25
P		0.030
S		0.030

Mechanical Properties

Tensile strength	257～689	σb/MPa
Yield Strength	798	σ 0.2 ≥/MPa
Elongation	19	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	117～515	-
HRC	30	-

Physical Properties

Thermal expansion	34-10	e-6/K
Thermal conductivity	40-27	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9471-7191	째C
Density	1364-2167	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)
C70W2 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