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ER 409Cb chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ER 409Cb

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AMS ER 409Cb

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This page is mainly introduced the ER 409Cb chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ER 409Cb,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Bare Stainless Steel Welding Electrodes and Rods

Steel Garde:ER 409Cb
Type:Stainless Steels
Country:USA
Standard:AMS
Standard Number:

ITEM Standard Number Descriptions

1 SFA-5.9/SFA-5.9M Bare Stainless Steel Welding Electrodes and Rods
Metallographic Structure:Precipitation-Hardening
Application:Bare Stainless Steel Welding Electrodes and Rods

ITEM	Standard Number	Descriptions
1	SFA-5.9/SFA-5.9M	Bare Stainless Steel Welding Electrodes and Rods

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
A 959 Type 409Cb	SAE	USA
ER 409Cb	AMS	USA

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C		0.06
Si		1.00
Mn		1.00
P		0.045
S		0.04
Ni		0.50
Cr	10.50	11.75
Al
Cu
Ti
Fe		remaining
N
Mo
V

Mechanical Properties

Tensile strength	402～391	σb/MPa
Yield Strength	367	σ 0.2 ≥/MPa
Elongation	83	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	988～197	-
HRC	30	-

Physical Properties

Thermal expansion	67-64	e-6/K
Thermal conductivity	55-28	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1459-8564	째C
Density	9733-7211	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)
ER 409Cb 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