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D7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of D7

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ASTM D7

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This page is mainly introduced the D7 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of D7,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
D7

Steel Garde:D7
Type:Special Alloy
Country:USA
Standard:ASTM
Application:Alloy tool steel

Relevant products:

1.2365(H10, X32Cr...

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
SKD7	JIS	Japan

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	820～759	σb/MPa
Yield Strength	173	σ 0.2 ≥/MPa
Elongation	27	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	578～489	-
HRC	30	-

Physical Properties

Thermal expansion	98-76	e-6/K
Thermal conductivity	88-96	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4256-7130	째C
Density	7760-1703	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)
D7 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