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A 268 S40900 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 268 S40900

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SAE A 268 S40900

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This page is mainly introduced the A 268 S40900 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 268 S40900,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Steel Garde:A 268 S40900
Type:Stainless Steels
Country:USA
Standard:SAE
Standard Number:

ITEM Standard Number Descriptions

1 A 268/A 268M (2010) Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service
Metallographic Structure:Ferrite
Application:Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

ITEM	Standard Number	Descriptions
1	A 268/A 268M (2010)	Seamless and Welded Ferritic and Martensitic Stainless Steel Tubing for General Service

Relevant products:

S30409/304H/S30409/1.4948 Tube

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 240 S30409	SAE	USA
A 249 S30409	SAE	USA
A 358 S30409	SAE	USA
A 813 S30409	SAE	USA
A 814 S30409	SAE	USA
A 965 S30409	SAE	USA
S30409	AISI	USA
SA-240 S30409	AMS	USA
SA-358 S30409	AMS	USA
SA-813 S30409	AMS	USA
SA-814 S30409	AMS	USA
SA-965 S30409	AMS	USA
A 240 S40900	SAE	USA
A 554 S40900	SAE	USA
S40900	AISI	USA
SA-268 TP S40900	AMS	USA
A 493 S40940	SAE	USA
S40940	AISI	USA
A 176 S40945	SAE	USA
A 240 S40945	SAE	USA
A 959 S40945	SAE	USA
S40945	AISI	USA
SA-240 S40945	AMS	USA
A 240 S40975	SAE	USA
A 959 S40975	SAE	USA
S40975	AISI	USA
SA-240 S40975	AMS	USA
A 959 Type 409Cb	SAE	USA
ER 409Cb	AMS	USA
ER 409Cb	AMS	USA
SUS 409LTP	JIS	Japan
409S19	B.S.	UK
LW12	B.S.	UK
LW19	B.S.	UK
STR409	KS	Korea
STR409L	KS	Korea
SUH409	CNS	China
SUH409L	CNS	China

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Mn		1.00
Si		1.00
P		0.045
S		0.045
Cr	10.50	11.7
Ni		0.50
Mo

Mechanical Properties

Tensile strength	297～851	σb/MPa
Yield Strength	571	σ 0.2 ≥/MPa
Elongation	40	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	888～092	-
HRC	30	-

Physical Properties

Thermal expansion	85-98	e-6/K
Thermal conductivity	19-61	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9533-5524	째C
Density	0700-8252	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 268 S40900 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