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1.2709 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2709

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DIN 1.2709

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This page is mainly introduced the 1.2709 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2709,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
High alloyed NiCoMo steel

Steel Garde:1.2709
Type:Tool Die Steels
Country:Germany
Standard:DIN
Application:High alloyed NiCoMo steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.03
Si		0.10
Mn		0.15
P		0.010
S		0.010
Cr		0.25
Mo	4.50	5.20
V
Ni	17.00	19.00
Co	8.50	10.00
Ti	0.80	1.20

Mechanical Properties

Tensile strength	679～553	σb/MPa
Yield Strength	919	σ 0.2 ≥/MPa
Elongation	21	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	767～858	-
HRC	30	-

Physical Properties

Thermal expansion	30-89	e-6/K
Thermal conductivity	81-06	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6085-1167	째C
Density	9324-8445	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)
1.2709 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