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331S40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 331S40

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B.S. 331S40

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This page is mainly introduced the 331S40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 331S40,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:331S40
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	0.35	0.50
Si	1.00	2.00
Mn	0.50	1.00
P		0.040
S		0.030
Cr	12.00	15.00
Ni	12.00	15.00
Mo
W	2.00	3.00

Mechanical Properties

Tensile strength	488～892	σb/MPa
Yield Strength	237	σ 0.2 ≥/MPa
Elongation	60	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	260～829	-
HRC	30	-

Physical Properties

Thermal expansion	43-84	e-6/K
Thermal conductivity	90-44	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2618-8044	째C
Density	5374-9285	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)
331S40 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