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SA-240 S43400 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-240 S43400

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AMS SA-240 S43400

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This page is mainly introduced the SA-240 S43400 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SA-240 S43400,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Steel Garde:SA-240 S43400
Type:Stainless Steels
Country:USA
Standard:AMS

Standard Number:

ITEM	Standard Number	Descriptions
1	SA-240/SA-240M	Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Metallographic Structure:Ferrite
Application:Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications

Relevant products:

D6AC Forging Hollow Bar

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 240 S43400	SAE	USA
A 554 S43400	SAE	USA
S43400	AISI	USA
SUS 434	JIS	Japan
SUS 434	JIS	Japan
SUS 434	JIS	Japan
SUS 434	JIS	Japan
SUS 434-WSB	JIS	Japan
434S17	B.S.	UK
434S20	B.S.	UK
STS434	KS	Korea
STS434WSB	KS	Korea
CNS 434	CNS	China

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.12
Mn		1.00
Si		1.00
P		0.04
S		0.03
Cr	16.00	18.00
Ni
Mo	0.75	1.25

Mechanical Properties

Tensile strength	112～263	σb/MPa
Yield Strength	321	σ 0.2 ≥/MPa
Elongation	23	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	580～288	-
HRC	30	-

Physical Properties

Thermal expansion	10-23	e-6/K
Thermal conductivity	69-77	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9923-3388	째C
Density	8272-2858	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)
SA-240 S43400 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