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A 240 S31266 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 240 S31266

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SAE A 240 S31266

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This page is mainly introduced the A 240 S31266 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 240 S31266,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless and heat resisting steels

Cr and Cr-Ni stainless steel plate, sheet, and strip for pressure vessels and for general

A 240 S31266 S31266

Steel Garde:A 240 S31266
Type:Stainless Steels
Country:USA
Standard:SAE
Standard Number:

ITEM Standard Number Descriptions

1 ASTM A 240/A 240M Cr and Cr-Ni stainless steel plate, sheet, and strip for pressure vessels and for general
Metallographic Structure:Austenite
Application:ustenitic Chromium Nickel Molybdenum Wolfram Copper Nitrogen Stainless Steel

ITEM	Standard Number	Descriptions
1	ASTM A 240/A 240M	Cr and Cr-Ni stainless steel plate, sheet, and strip for pressure vessels and for general

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
S31266	AISI	USA
A 358 S31266	SAE	USA
A 959 S31266	SAE	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.030
Si		1.00
Mn	2.00	4.00
P		0.035
S		0.02
Cr	23.0	25.0
Ni	21.0	24.0
Mo	5.00	7.00
Cu	0.50	3.00
N	0.35	0.60
W	1.00	3.00

Mechanical Properties

Tensile strength	112～381	σb/MPa
Yield Strength	854	σ 0.2 ≥/MPa
Elongation	44	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	482～473	-
HRC	30	-

Physical Properties

Thermal expansion	65-56	e-6/K
Thermal conductivity	64-41	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4889-7893	째C
Density	0190-7985	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)
A 240 S31266 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