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STS403 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS403

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KS STS403

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This page is mainly introduced the STS403 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STS403,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Stainless steel bars

Steel Garde:STS403
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

Metallographic Structure:Martensite
Application:Stainless steel bars

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
STS403FB	KS	Korea
STS403WSB	KS	Korea

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.15
Si		0.50
Mn		1.00
P		0.040
S		0.030
Cr	11.50	13.00
Ni		0.60
Mo
N

Mechanical Properties

Tensile strength	071～624	σb/MPa
Yield Strength	208	σ 0.2 ≥/MPa
Elongation	38	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	194～318	-
HRC	30	-

Physical Properties

Thermal expansion	09-57	e-6/K
Thermal conductivity	23-65	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6157-8220	째C
Density	6621-6733	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)
STS403 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