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

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CSA 70AT

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

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

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	229～644	σb/MPa
Yield Strength	251	σ 0.2 ≥/MPa
Elongation	41	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	593～326	-
HRC	30	-

Physical Properties

Thermal expansion	00-25	e-6/K
Thermal conductivity	47-63	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5400-9290	째C
Density	0996-5482	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)
70AT 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