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STS304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS304

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KS STS304

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This page is mainly introduced the STS304 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS304,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Special alloys steel for chemical plant

Steel Garde:STS304
Type:Stainless Steels
Country:Korea
Standard:KS

Standard Number:

ITEM	Standard Number	Descriptions
1	D 3534 (2002)	Cold rolled stainless steel strip for springs
2	D 3692 (2001)	Cold finished stainless steel bars
3	D 3698 (2008)	Cold rolled stainless steel plates, sheets and strip
4	D 3702 (2008)	Stainless steel wire rods
5	D 3703 (2007)	Stainless steel wires
6	D 3705 (2008)	Hot rolled stainless steel plates, sheets and strip
7	D 3706 (2008)	Stainless steel bars
8	D 3749 (2008)	Special alloys steel for chemical plant

Metallographic Structure:Austenite
Application:Special alloys steel for chemical plant

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS304L	KS	Korea
STS304LTB	KS	Korea
STS304LTBS	KS	Korea
STS304LTPY	KS	Korea
STS304LWSA	KS	Korea
STS304LWSB	KS	Korea
STS304LCA	KS	Korea
STS304LFB	KS	Korea
STS304LTP	KS	Korea
STS304N1	KS	Korea
STS304N2	KS	Korea
STS304LN	KS	Korea
STS304J3	KS	Korea
STS304J3WSA	KS	Korea
STS304J3WSB	KS	Korea
STS304J1	KS	Korea
STS304J2	KS	Korea
STS304TKA	KS	Korea
STS304TKC	KS	Korea

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.08
Si		1.00
Mn		2.00
P		0.045
S		0.030
Cr	18.00	20.00
Ni	8.00	10.50
Mo
N

Mechanical Properties

Tensile strength	528～433	σb/MPa
Yield Strength	060	σ 0.2 ≥/MPa
Elongation	41	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	318～449	-
HRC	30	-

Physical Properties

Thermal expansion	50-91	e-6/K
Thermal conductivity	93-77	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9399-4203	째C
Density	2920-6716	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)
STS304 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