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308 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 308

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UNS 308

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This page is mainly introduced the 308 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 308,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Chemical compositions of SAE wrought stainless steels

Steel Garde:308
Type:Stainless Steels
Country:USA
Standard:UNS
Standard Number:

ITEM Standard Number Descriptions

1 SAE J 405 (1998) Chemical compositions of SAE wrought stainless steels
Metallographic Structure:Austenite
Application:Chemical compositions of SAE wrought stainless steels

ITEM	Standard Number	Descriptions
1	SAE J 405 (1998)	Chemical compositions of SAE wrought stainless steels

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
308	UNS	USA
A 167 Type 308	SAE	USA
A 276 308	SAE	USA
A 314 308	SAE	USA
A 473 308	SAE	USA
A 580 Type 308	SAE	USA
A 959 Type 308	SAE	USA
A 167 S30800	SAE	USA
A 276 S30800	SAE	USA
A 314 S30800	SAE	USA
A 473 S30800	SAE	USA
A 580 S30800	SAE	USA
S30800	SAE	USA
308L	AMS	USA
ER 308L	International	USA
S30803	AISI	USA
A 167 S30815	SAE	USA
A 213 S30815	SAE	USA
A 240 S30815	SAE	USA
A 249 S30815	SAE	USA
A 276 S30815	SAE	USA
A 312 S30815	SAE	USA
A 358 S30815	SAE	USA
A 409 S30815	SAE	USA
A 473 S30815	SAE	USA
A 479 S30815	SAE	USA
A 813 S30815	SAE	USA
A 814 S30815	SAE	USA
A 943 S30815	SAE	USA
A 959 S30815	SAE	USA
S30815	AISI	USA
SA-213 S30815	AMS	USA
SA-240 S30815	AMS	USA
SA-249 S30815	AMS	USA
SA-276 S30815	AMS	USA
SA-312 S30815	AMS	USA
SA-358 S30815	AMS	USA
SA-409 S30815	AMS	USA
SA-479 S30815	AMS	USA
SA-813 S30815	AMS	USA
SA-814 S30815	AMS	USA
A 479 ER308	SAE	USA
ER 308	AMS	USA
ER 308	International	USA
SA-479 Type ER308	AMS	USA
S30880	AISI	USA
A 167 S30815	SAE	USA
A 213 S30815	SAE	USA
A 240 S30815	SAE	USA
A 249 S30815	SAE	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si		1.00
Mn		2.00
P		0.045
S		0.03
Cr	19.0	21.0
Ni	10.0	12.0

Mechanical Properties

Tensile strength	642～428	σb/MPa
Yield Strength	943	σ 0.2 ≥/MPa
Elongation	39	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	185～020	-
HRC	30	-

Physical Properties

Thermal expansion	50-97	e-6/K
Thermal conductivity	01-09	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6918-0609	째C
Density	6766-7731	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)
308 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