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55CrMnA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 55CrMnA

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GBT 55CrMnA

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This page is mainly introduced the 55CrMnA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 55CrMnA,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
55CrMnA

Steel Garde:55CrMnA
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	489～928	σb/MPa
Yield Strength	630	σ 0.2 ≥/MPa
Elongation	71	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	800～556	-
HRC	30	-

Physical Properties

Thermal expansion	78-41	e-6/K
Thermal conductivity	65-50	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0286-5143	째C
Density	2012-5930	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)
55CrMnA 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