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Cr2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Cr2

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GB Cr2

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This page is mainly introduced the Cr2 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Cr2,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Cr2 Measuring tool cutting tool steel

Steel Garde:Cr2
Type:Tool Die Steels
Country:China
Standard:GB
Standard Number:

ITEM Standard Number Descriptions

1 GB/T 1229-2000 Alloy tool steel
Application:Measuring tool cutting tool steel

ITEM	Standard Number	Descriptions
1	GB/T 1229-2000	Alloy tool steel

Relevant products:

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
125Cr2	DIN	Germany
140Cr2	EN	Whole
74NiCr2	DIN	Germany

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.95	1.10
Si		0.40
Mn		0.40
Cr	1.30	1.65

Mechanical Properties

Tensile strength	915～703	σb/MPa
Yield Strength	940	σ 0.2 ≥/MPa
Elongation	54	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	908～959	-
HRC	30	-

Physical Properties

Thermal expansion	90-53	e-6/K
Thermal conductivity	09-51	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1303-3565	째C
Density	1353-7767	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)
Cr2 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