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349S54 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 349S54

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B.S. 349S54

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This page is mainly introduced the 349S54 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 349S54,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

Steel Garde:349S54
Type:Stainless Steels
Country:UK
Standard:B.S.
Standard Number:

ITEM Standard Number Descriptions

1 BS 970-4 Specification for wrought steels for mechanical and allied engineering purposes. Valve steels
Application:Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

ITEM	Standard Number	Descriptions
1	BS 970-4	Specification for wrought steels for mechanical and allied engineering purposes. Valve steels

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.48	0.58
Si		0.25
Mn	8.00	10.00
P		0.040
S	0.035	0.080
Cr	20.00	22.00
Ni	3.25	4.50
Mo
N	0.38	0.50
C+N	0.90

Mechanical Properties

Tensile strength	425～922	σb/MPa
Yield Strength	403	σ 0.2 ≥/MPa
Elongation	15	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	329～871	-
HRC	30	-

Physical Properties

Thermal expansion	16-34	e-6/K
Thermal conductivity	46-17	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	5120-4480	째C
Density	2514-8690	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)
349S54 Stainless Steels	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