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SUS 321HFB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 321HFB

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JIS SUS 321HFB

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This page is mainly introduced the SUS 321HFB chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of SUS 321HFB,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel blooms and billets for forgings

Steel Garde:SUS 321HFB
Type:Stainless Steels
Country:Japan
Standard:JIS
Standard Number:

ITEM Standard Number Descriptions

1 G 4319 (1991) Stainless steel blooms and billets for forgings
Metallographic Structure:Austenite
Application:Stainless steel blooms and billets for forgings

ITEM	Standard Number	Descriptions
1	G 4319 (1991)	Stainless steel blooms and billets for forgings

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.04	0.10
Si		1.00
Mn		2.00
P		0.045
S		0.03
Cr	17.00	20.00
Ni	9.00	13.00
Mo
Ti	4×C％	0.60

Mechanical Properties

Tensile strength	529～244	σb/MPa
Yield Strength	207	σ 0.2 ≥/MPa
Elongation	86	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	676～541	-
HRC	30	-

Physical Properties

Thermal expansion	03-92	e-6/K
Thermal conductivity	84-37	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8126-8387	째C
Density	5134-0789	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)
SUS 321HFB 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