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A 988 S31803 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 988 S31803

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SAE A 988 S31803

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This page is mainly introduced the A 988 S31803 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 988 S31803,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service

Steel Garde:A 988 S31803
Type:Stainless Steels
Country:USA
Standard:SAE

Standard Number:

ITEM	Standard Number	Descriptions
1	A 988/A 988M (2011)	Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service

Metallographic Structure:Austenitic-Ferritic(Duplex steel)
Application:Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 1049 S32205	SAE	USA
A 240 S32205	SAE	USA
A 270 S32205	SAE	USA
A 276 S32205	SAE	USA
A 479 S32205	SAE	USA
A 511 S32205	SAE	USA
A 789 S32205	SAE	USA
A 790 S32205	SAE	USA
A 815 CRS32205	SAE	USA
A 815 WPS32205	SAE	USA
A 928 S32205	SAE	USA
A 988 S32205	SAE	USA
S32205	AISI	USA
SA-240 S32205	AMS	USA
SA-479 S32205	AMS	USA
SA-789 S32205	AMS	USA
SA-790 S32205	AMS	USA
SA-815 CRS32205	AMS	USA
SA-815 WPS32205	AMS	USA
A 1049 S31803	SAE	USA
A 240 S31803	SAE	USA
A 270 S31803	SAE	USA
A 276 S31803	SAE	USA
A 479 S31803	SAE	USA
A 511 S31803	SAE	USA
A 789 S31803	SAE	USA
A 790 S31803	SAE	USA
A 815 CRS31803	SAE	USA
A 815 WPS31803	SAE	USA
A 928 S31803	SAE	USA
A 949 S31803	SAE	USA
A 955 S31803 Grade 280	SAE	USA
A 955 S31803 Grade 40	SAE	USA
A 955 S31803 Grade 420	SAE	USA
A 955 S31803 Grade 520	SAE	USA
A 955 S31803 Grade 60	SAE	USA
A 955 S31803 Grade 75	SAE	USA
A 959 S31803	SAE	USA
S31803	AISI	USA
SA-240 S31803	AMS	USA
SA-276 S31803	AMS	USA
SA-479 S31803	AMS	USA
SA-789 S31803	AMS	USA
SA-790 S31803	AMS	USA
SA-815 CRS31803	AMS	USA
SA-815 WPS31803	AMS	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.03
Mn		2.00
Si		1.00
P		0.03
S		0.02
Cr	21.00	23.00
Ni	4.50	6.50
Mo	2.50	3.50
N	0.08	0.20

Mechanical Properties

Tensile strength	905～114	σb/MPa
Yield Strength	095	σ 0.2 ≥/MPa
Elongation	39	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	125～919	-
HRC	30	-

Physical Properties

Thermal expansion	37-30	e-6/K
Thermal conductivity	49-74	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9594-8346	째C
Density	1671-4673	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 988 S31803 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