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T7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T7

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T7

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T7 Profile
T7 Chemical composition
T7 Mechanical Properties
T7 Physical Properties
T7 Heat treatment
T7 Size Availability
T7 Relevant products

Profile

This page is mainly introduced the T7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of T7,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

The performance characteristics of carbon steel and use

Steel Garde:T7
Type:Special Alloy
Country:China
Application:Carbon tool steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
UNS T72301	UNS	USA
W2-A	ASTM	USA
UNS T72302	UNS	USA
T72305	UNS	USA
CT75	SS	Sweden
CT75	SS	Sweden
T7MoNiCrl80	STAS/SR	Romania
T7NiCrl80	STAS/SR	Romania
T70MoCr280	STAS/SR	Romania
T75Cr280	STAS/SR	Romania
St70F	ONORM	Austria

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	629～838	σb/MPa
Yield Strength	150	σ 0.2 ≥/MPa
Elongation	88	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	764～734	-
HRC	30	-

Physical Properties

Thermal expansion	20-59	e-6/K
Thermal conductivity	29-40	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0041-5480	째C
Density	5464-6620	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)
T7 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