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2S.111 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 2S.111

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B.S. 2S.111

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This page is mainly introduced the 2S.111 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 2S.111,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Specification for aircraft material. Nickel-chromium-tungsten valve steel

Steel Garde:2S.111
Type:Stainless Steels
Country:UK
Standard:B.S.
Standard Number:

ITEM Standard Number Descriptions

1 BS 2S 111 Specification for aircraft material. Nickel-chromium-tungsten valve steel
Application:Specification for aircraft material. Nickel-chromium-tungsten valve steel

ITEM	Standard Number	Descriptions
1	BS 2S 111	Specification for aircraft material. Nickel-chromium-tungsten valve steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.37	0.47
Si	1.00	2.00
Mn	0.50	1.00
P		0.035
S		0.025
Cr	13.00	15.00
Ni	13.00	15.00
Mo	0.40	0.60
W	2.20	3.00

Mechanical Properties

Tensile strength	063～574	σb/MPa
Yield Strength	389	σ 0.2 ≥/MPa
Elongation	82	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	137～769	-
HRC	30	-

Physical Properties

Thermal expansion	73-23	e-6/K
Thermal conductivity	87-72	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8558-6870	째C
Density	8978-4225	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)
2S.111 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