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74NiCr2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 74NiCr2

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DIN 74NiCr2

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This page is mainly introduced the 74NiCr2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 74NiCr2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Alloyed NiCr steel

Steel Garde:74NiCr2
Type:Tool Die Steels
Country:Germany
Standard:DIN
Application:Alloyed NiCr steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.70	0.78
Si	0.10	0.25
Mn	0.35	0.45
P		0.035
S		0.035
Cr	0.20	0.30
Mo
V
Ni	0.50	0.60

Mechanical Properties

Tensile strength	341～191	σb/MPa
Yield Strength	637	σ 0.2 ≥/MPa
Elongation	46	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	001～177	-
HRC	30	-

Physical Properties

Thermal expansion	86-86	e-6/K
Thermal conductivity	36-79	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2279-4932	째C
Density	6197-6559	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)
74NiCr2 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