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1.2057 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2057

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EN 1.2057

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This page is mainly introduced the 1.2057 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2057,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Hardened steel; Ball and roller bearing steels

Steel Garde:1.2057
Type:Tool Die Steels
Country:Germany
Standard:EN
Application:Hardened steel; Ball and roller bearing steels

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
1.2057	EN	Germany

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	1.00	1.10
Si	0.15	0.35
Mn	0.20	0.40
P		0.030
S		0.030
Cr	0.90	1.10
Mo
V

Mechanical Properties

Tensile strength	919～457	σb/MPa
Yield Strength	559	σ 0.2 ≥/MPa
Elongation	20	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	597～233	-
HRC	30	-

Physical Properties

Thermal expansion	27-08	e-6/K
Thermal conductivity	38-82	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9957-7645	째C
Density	0300-5669	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)
1.2057 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