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STSF304H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STSF304H

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This page is mainly introduced the STSF304H chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STSF304H,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel forgings for pressure vessels

Steel Garde:STSF304H
Type:Stainless Steels
Country:Korea
Standard:KS
Standard Number:

ITEM Standard Number Descriptions

1 D 4115 (2001) Stainless steel forgings for pressure vessels
Metallographic Structure:Austenite
Application:Stainless steel forgings for pressure vessels

ITEM	Standard Number	Descriptions
1	D 4115 (2001)	Stainless steel forgings for pressure vessels

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.04	0.10
Si		1.00
Mn		2.00
P		0.040
S		0.030
Cr	18.00	20.00
Ni	8.00	12.00
Mo

Mechanical Properties

Tensile strength	816～576	σb/MPa
Yield Strength	643	σ 0.2 ≥/MPa
Elongation	74	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	334～674	-
HRC	30	-

Physical Properties

Thermal expansion	04-25	e-6/K
Thermal conductivity	99-66	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3338-4609	째C
Density	2102-4426	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)
STSF304H 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