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Products >> A5.9, STAINLESS STEEL Bare, Cored and Stranded Electrodes

 

ER409Nb

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ER409Nb  is a ferritic stainless steel welding alloy used to weld types 409 and 409Ti base metals.  The addition of niobium leads to a preferential reaction with carbon which interrupts chromium from forming carbides.  This improves corrosion resistance, increases strength at high temperatures, and promotes ferritic microstructure.


AWS Class: ER409Nb

Certification:  AWS A5.9/ A5.9M:2006

Alloy:  ER409Nb

AWS/ASME SFA A5.9

 

Welding Position:   

F, V, OH, H        

Current:

DCEP

 

Typical Properties (as welded)

Yield, kpsi:

50

Tensile Strength, kpsi:

67

Elongation%, min:

26

 

 

    

Typical Wire Chemistry as per AWS A5.9 (single values are maximum)

C

Cr

Ni

Mo

Mn

Si

P

S

Cu

Element

Amount

0.08

10.5-13.5

0.6

0.50

0.8

1.0

0.04

0.03

0.75

Nb

10XC min/0.75max

 

 

Typical Welding Parameters

Diameter

Process

Volt

 

Amps

GAS

in

(mm)

.035

 (0.9)

GMAW

26-29

160-210

98% Argon/2% Oxygen or 97% Argon/3% Oxygen

.045

 (1.14)

GMAW

28-32

180-250

98% Argon/2% Oxygen or 97% Argon/3% Oxygen

1/16”

(1.6)

GMAW

29-33

200-280

98% Argon/2% Oxygen  or 97% Argon/3% Oxygen

Diameter

Process

Volt

 

Amps

GAS

in

(mm)

 1/16”

 (1.6)

GTAW

14-18

90-130

100% Argon

 3/32”

 (2.4)

GTAW

15-20

120-175

100% Argon

 1/8”

 (3.2)

GTAW

15-20

150-220

100% Argon

 

 

< CLICK HERE for additional information on this alloy >

 

 

Products >> A5.9, STAINLESS STEEL Bare, Cored and Stranded Electrodes

 

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