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STS303Cu chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS303Cu

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KS STS303Cu

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This page is mainly introduced the STS303Cu chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS303Cu,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel bars

Steel Garde:STS303Cu
Type:Stainless Steels
Country:Korea
Standard:KS

Standard Number:

ITEM	Standard Number	Descriptions
1	D 3692 (2001)	Cold finished stainless steel bars
2	D 3702 (2008)	Stainless steel wire rods
3	D 3703 (2007)	Stainless steel wires
4	D 3706 (2008)	Stainless steel bars

Metallographic Structure:Austenite
Application:Stainless steel bars

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS303	KS	Korea
STS303Se	KS	Korea

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.15
Si		1.00
Mn		2.00
P		0.20
S		0.15
Cr	17.00	19.00
Ni	8.00	10.00
Mo		0.60
N
Cu	1.50	3.50

Mechanical Properties

Tensile strength	290～276	σb/MPa
Yield Strength	067	σ 0.2 ≥/MPa
Elongation	90	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	549～591	-
HRC	30	-

Physical Properties

Thermal expansion	21-12	e-6/K
Thermal conductivity	30-74	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	9141-5067	째C
Density	3081-4957	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)
STS303Cu 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