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70W chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 70W

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CSA 70W

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This page is mainly introduced the 70W chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 70W,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
70W

Steel Garde:70W
Type:Special Alloy
Country:Canada
Standard:CSA
Application:Canada Engineering and steel structure

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
C70W1		Germany
C70W2	DIN	Germany
70WT	CSA	Canada
SMA570W	CNS	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	662～939	σb/MPa
Yield Strength	026	σ 0.2 ≥/MPa
Elongation	67	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	786～188	-
HRC	30	-

Physical Properties

Thermal expansion	54-41	e-6/K
Thermal conductivity	06-85	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5213-9351	째C
Density	1855-2588	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)
70W Special Alloy	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