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

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AISI S21904

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

Austenitic Chromium Manganese Nickel Stainless Steel, Low carbon

Steel Garde:S21904
Type:Stainless Steels
Country:USA
Standard:AISI
Metallographic Structure:Austenite
Application:Austenitic Chromium Manganese Nickel Stainless Steel, Low carbon

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 473 S21904	SAE	USA
A 580 S21904	SAE	USA
A 666 S21904	SAE	USA
A 965 S21904	SAE	USA
A 988 S21904	SAE	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	748～739	σb/MPa
Yield Strength	219	σ 0.2 ≥/MPa
Elongation	20	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	086～831	-
HRC	30	-

Physical Properties

Thermal expansion	36-36	e-6/K
Thermal conductivity	92-66	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3902-8557	째C
Density	5831-8358	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)
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