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A 268 S44700 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 268 S44700

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SAE A 268 S44700

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This page is mainly introduced the A 268 S44700 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 268 S44700,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 S44700
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

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 176 S44700	SAE	USA
A 240 S44700	SAE	USA
A 276 S44700	SAE	USA
A 479 S44700	SAE	USA
A 493 S44700	SAE	USA
A 580 S44700	SAE	USA
S44700	AISI	USA
SA-240 S44700	AMS	USA
SA-268 S44700	AMS	USA
SA-276 S44700	AMS	USA
SA-479 S44700	AMS	USA
A 176 S44735	SAE	USA
A 240 S44735	SAE	USA
A 268 S44735	SAE	USA
S44735	AISI	USA
SA-240 S44735	AMS	USA
SA-268 S44735	AMS	USA
A 176 S44800	SAE	USA
A 240 S44800	SAE	USA
A 268 S44800	SAE	USA
A 276 S44800	SAE	USA
A 479 S44800	SAE	USA
A 493 S44800	SAE	USA
A 580 S44800	SAE	USA
S44800	AISI	USA
SA-240 S44800	AMS	USA
SA-268 S44800	AMS	USA
SA-276 S44800	AMS	USA
SA-479 S44800	AMS	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.01
Mn		0.30
Si		0.20
P		0.025
S		0.02
Cr	28.00	30.00
Ni		0.15
Mo	3.50	4.20
N		0.02
Cu		0.15

Mechanical Properties

Tensile strength	288～491	σb/MPa
Yield Strength	429	σ 0.2 ≥/MPa
Elongation	55	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	579～345	-
HRC	30	-

Physical Properties

Thermal expansion	02-34	e-6/K
Thermal conductivity	05-16	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3611-2433	째C
Density	1240-5827	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 S44700 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