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1.2745 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2745

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DIN 1.2745

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This page is mainly introduced the 1.2745 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2745,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Alloyed NiCr steel

Steel Garde:1.2745
Type:Tool Die Steels
Country:Germany
Standard:DIN
Application:Alloyed NiCr steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.10	0.17
Si	0.20	0.30
Mn	0.30	0.50
P		0.030
S		0.030
Cr	0.90	1.20
Mo
V
Ni	4.20	4.70

Mechanical Properties

Tensile strength	543～030	σb/MPa
Yield Strength	169	σ 0.2 ≥/MPa
Elongation	27	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	813～724	-
HRC	30	-

Physical Properties

Thermal expansion	85-14	e-6/K
Thermal conductivity	20-67	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3145-3240	째C
Density	9102-9824	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)
1.2745 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