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28Cr chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 28Cr

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ASTM 28Cr

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This page is mainly introduced the 28Cr chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 28Cr,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
28Cr

Steel Garde:28Cr
Type:Special Alloy
Country:USA
Standard:ASTM
Application:

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
28Cr-15Ni	AISI	USA
28Cr	AISI	USA
28Cr-5Ni	AISI	USA
28Cr4	UNE	Spain
EN 28Cr4	EN	Euronorm
EN 28CrS4	EN	Euronorm

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	118～176	σb/MPa
Yield Strength	208	σ 0.2 ≥/MPa
Elongation	96	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	152～397	-
HRC	30	-

Physical Properties

Thermal expansion	69-41	e-6/K
Thermal conductivity	34-13	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6937-2548	째C
Density	6681-2426	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)
28Cr Special Alloy	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