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

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JIS SUS 321HTP

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

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

ITEM Standard Number Descriptions

1 G 3459 (2012) Stainless steel pipes
Metallographic Structure:Austenite
Application:Stainless steel pipes

ITEM	Standard Number	Descriptions
1	G 3459 (2012)	Stainless steel pipes

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.04	0.10
Si		0.75
Mn		2.00
P		0.03
S		0.03
Cr	17.00	20.00
Ni	9.00	13.00
Mo	9.00	13.00
Ti	4×C％	0.60

Mechanical Properties

Tensile strength	179～395	σb/MPa
Yield Strength	905	σ 0.2 ≥/MPa
Elongation	19	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	583～341	-
HRC	30	-

Physical Properties

Thermal expansion	75-17	e-6/K
Thermal conductivity	37-71	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	8554-7311	째C
Density	1809-7633	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 321HTP 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