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STR409L chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR409L

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KS STR409L

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This page is mainly introduced the STR409L chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of STR409L,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Heat - resisting steel plates and sheets

Steel Garde:STR409L
Type:Stainless Steels
Country:Korea
Standard:KS
Standard Number:

ITEM Standard Number Descriptions

1 D 3732 (2002) Heat - resisting steel plates and sheets
Metallographic Structure:Ferrite
Application:Heat - resisting steel plates and sheets

ITEM	Standard Number	Descriptions
1	D 3732 (2002)	Heat - resisting steel plates and sheets

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.03
Si		1.00
Mn		1.00
P		0.04
S		0.03
Cr	10.50	11.75
Ni		0.60
Mo
N
Ti	6×C％	0.75

Mechanical Properties

Tensile strength	874～933	σb/MPa
Yield Strength	061	σ 0.2 ≥/MPa
Elongation	62	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	668～465	-
HRC	30	-

Physical Properties

Thermal expansion	69-00	e-6/K
Thermal conductivity	59-08	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	2751-3182	째C
Density	2246-2758	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)
STR409L 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