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A 581 Type 303Se chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 581 Type 303Se

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SAE A 581 Type 303Se

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This page is mainly introduced the A 581 Type 303Se chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 581 Type 303Se,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
A 581 Type 303Se

Steel Garde:A 581 Type 303Se
Type:Stainless Steels
Country:USA
Standard:SAE
Standard Number:

ITEM Standard Number Descriptions

1 ASTM A 581 / A 581M Free machining stainless and heat resisting steel wire
Metallographic Structure:Austenite
Application:Free machining stainless and heat resisting steel wire

ITEM	Standard Number	Descriptions
1	ASTM A 581 / A 581M	Free machining stainless and heat resisting steel wire

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
303Se	YB	USA
A 314 303Se	SAE	USA
A 473 303 Se	SAE	USA
A 511 MT303Se	SAE	USA
A 582 Type 303Se	SAE	USA
A 895 Type 303Se	SAE	USA
A 959 Type 303Se	SAE	USA
F 593 303 Se	SAE	USA
F 594 303Se	SAE	USA
F 880 Class A1-50 303Se	SAE	USA
F 880 Class A1-70 303Se	SAE	USA
SUS 303Se	FED	Japan
SUS303Se	AMS	USA
A 314 S30323	SAE	USA
A 473 S30323	SAE	USA
A 581 S30323	SAE	USA
A 582 S30323	SAE	USA
A 895 S30323	SAE	USA
F738 Class A1-50 S30323	SAE	USA
F738 Class A1-70 S30323	SAE	USA
F738 Class A1-80 S30323	SAE	USA
F738 Class A1-80 S30323	SAE	USA
F836 Class A1-50 S30323	SAE	USA
F836 Class A1-70 S30323	SAE	USA
F836 Class A1-80 S30323	SAE	USA
S30323	AISI	USA
SUS 303 Se	JIS	Japan
SUS 303 Se	JIS	Japan
SUS 303 Se	JIS	Japan
SUS 303 Se	JIS	Japan
STS303Se	KS	Korea
303Se	CNS	China

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.15
Si		1.00
Mn		2.00
P		0.2
S		0.06
Cr	17.0	19.0
Ni	8.00	10.0
Se	0.15

Mechanical Properties

Tensile strength	135～392	σb/MPa
Yield Strength	714	σ 0.2 ≥/MPa
Elongation	44	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	118～660	-
HRC	30	-

Physical Properties

Thermal expansion	78-43	e-6/K
Thermal conductivity	68-32	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9856-2080	째C
Density	8686-0008	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 581 Type 303Se 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