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50B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 50B

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GBT 50B

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This page is mainly introduced the 50B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 50B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
50B

Steel Garde:50B
Type:Special Alloy
Country:China
Standard:GBT
Application:China structural steel and alloy steel

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
XH50BMTKΦЮ(ЭП57)	ГОСТ	Russia
XH50BMKTЮP-ИД0ЭП99-ИД)	ГОСТ	Russia

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	048～567	σb/MPa
Yield Strength	467	σ 0.2 ≥/MPa
Elongation	60	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	904～540	-
HRC	30	-

Physical Properties

Thermal expansion	94-23	e-6/K
Thermal conductivity	84-04	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5327-2693	째C
Density	4512-6543	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)
50B 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