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M52 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M52

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ASTM M52

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This page is mainly introduced the M52 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of M52,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Bearing Steel

Steel Garde:M52
Type:Tool Die Steels
Country:USA
Standard:ASTM
Application:Bearing Steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.85	0.95
Si	0.20	0.60
Mn	0.15	0.45
P		0.030
S		0.030
Cr	3.50	4.30
Mo	4.00	4.90
V	1.65	2.25
W	0.75	1.50
Co

Mechanical Properties

Tensile strength	195～130	σb/MPa
Yield Strength	916	σ 0.2 ≥/MPa
Elongation	36	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	987～174	-
HRC	30	-

Physical Properties

Thermal expansion	12-22	e-6/K
Thermal conductivity	67-39	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9739-4779	째C
Density	4647-8618	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)
M52 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