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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	772～705	σb/MPa
Yield Strength	392	σ 0.2 ≥/MPa
Elongation	31	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	731～306	-
HRC	30	-

Physical Properties

Thermal expansion	48-95	e-6/K
Thermal conductivity	78-23	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4124-2813	째C
Density	2714-6343	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