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A 473 S21904 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 473 S21904

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SAE A 473 S21904

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This page is mainly introduced the A 473 S21904 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 473 S21904,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Stainless Steel Forgings

Steel Garde:A 473 S21904
Type:Stainless Steels
Country:USA
Standard:SAE
Standard Number:

ITEM Standard Number Descriptions

1 A 473 (2009) Stainless Steel Forgings
Metallographic Structure:Austenite
Application:Stainless Steel Forgings

ITEM	Standard Number	Descriptions
1	A 473 (2009)	Stainless Steel Forgings

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 240 S21904	SAE	USA
A 269 S21904	SAE	USA
A 276 S21904	SAE	USA
A 314 S21904	SAE	USA
A 580 S21904	SAE	USA
A 666 S21904	SAE	USA
A 965 S21904	SAE	USA
A 988 S21904	SAE	USA
S21904	AISI	USA
SA-666 S21904	AMS	USA
SA-965 S21904	AMS	USA
A 240 S21904	SAE	USA
A 269 S21904	SAE	USA
A 276 S21904	SAE	USA
A 314 S21904	SAE	USA
A 473 S21904	SAE	USA
A 580 S21904	SAE	USA
A 666 S21904	SAE	USA
A 965 S21904	SAE	USA
A 988 S21904	SAE	USA
S21904	SAE	USA
SA-666 S21904	AMS	USA
SA-965 S21904	AMS	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.04
Mn	8.00	10.00
Si		1.00
P		0.06
S		0.03
Cr	19.00	21.50
Ni	5.50	7.50
Mo
N	0.15	0.40

Mechanical Properties

Tensile strength	421～650	σb/MPa
Yield Strength	024	σ 0.2 ≥/MPa
Elongation	80	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	251～047	-
HRC	30	-

Physical Properties

Thermal expansion	96-89	e-6/K
Thermal conductivity	47-06	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8803-7175	째C
Density	9541-2884	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 473 S21904 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