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347S31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 347S31

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347S31

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This page is mainly introduced the 347S31 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 347S31,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
347S31

Steel Garde:347S31
Type:Special Alloy
Country:UK
Application:austenitic special steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	627～394	σb/MPa
Yield Strength	671	σ 0.2 ≥/MPa
Elongation	90	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	723～704	-
HRC	30	-

Physical Properties

Thermal expansion	11-30	e-6/K
Thermal conductivity	80-68	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9557-5797	째C
Density	1318-1307	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)
347S31 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