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STS347 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS347

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KS STS347

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This page is mainly introduced the STS347 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS347,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:STS347
Type:Stainless Steels
Country:Korea
Standard:KS

Standard Number:

ITEM	Standard Number	Descriptions
1	D 3692 (2001)	Cold finished stainless steel bars
2	D 3698 (2008)	Cold rolled stainless steel plates, sheets and strip
3	D 3702 (2008)	Stainless steel wire rods
4	D 3703 (2007)	Stainless steel wires
5	D 3705 (2008)	Hot rolled stainless steel plates, sheets and strip
6	D 3706 (2008)	Stainless steel bars
7	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
STS347TKA	KS	Korea
STS347HTB	KS	Korea
STS347HTF	KS	Korea
STS347TB	KS	Korea
STS347TF	KS	Korea
STS347TPY	KS	Korea
STS347FB	KS	Korea
STS347HFB	KS	Korea
STS347HTP	KS	Korea
STS347TP	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	17.00	19.00
Ni	9.00	13.00
Mo
N
Nb	10×C％

Mechanical Properties

Tensile strength	158～347	σb/MPa
Yield Strength	268	σ 0.2 ≥/MPa
Elongation	67	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	183～360	-
HRC	30	-

Physical Properties

Thermal expansion	55-36	e-6/K
Thermal conductivity	20-08	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	3479-8466	째C
Density	7654-9592	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)
STS347 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