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38CrA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 38CrA

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GBT 38CrA

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This page is mainly introduced the 38CrA chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 38CrA,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
38CrA

Steel Garde:38CrA
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ML38CrA	GBT	China

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	335～455	σb/MPa
Yield Strength	702	σ 0.2 ≥/MPa
Elongation	81	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	143～717	-
HRC	30	-

Physical Properties

Thermal expansion	19-48	e-6/K
Thermal conductivity	23-22	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2015-7093	째C
Density	5544-5582	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)
38CrA 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