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E320LR-16


Alloy Type:

E320LR-16 is similar in composition to 320 stainless steel but with carbon, silicon, phosphorus, and sulfur controlled to lower limits and columbium and manganese kept to a narrower range.  The resulting composition is designed to reduce the possibility of microfissuring.  Low heat input is advised when welding with E320LR-16 electrodes.

 

Typical Applications:  tanks, process piping, heat exchangers for the chemical processing industry

 

AWS Class:    E320LR-16 Certification: AWS A5.4/A5.4M:2004
Alloy:  E320LR ASME SFA A5.4

 

Welding Position:    F, V, OH, H Current:

AC-DCEP

 

Tensile Strength, kpsi: 75 min
Yield Strength, kpsi: *NS
Elongation %: 30 min

 

*Not Specified

Typical Wire Chemistry as per AWS A5.4(single values are maximum)

C Cr Ni Mo Nb + Ta Mn Si P S Cu
0.03 19.0-21.0 32.0-36.0 2.0-3.0 8 X C, min to 0.40 max 1.50-2.50 0.30 0.02 0.015 3.0-4.0

 

 

Typical Welding Parameters
Diameter Process Volt Amps (flat) Amps (V/OH)
in (mm)
 3/32  (2.4) SMAW  24-28 70-85 65-75
 1/8  (3.2) SMAW  26-30 85-110 80-90
 5/32  (4.0) SMAW  28-32 110-140  100-120
 3/16  (4.8) SMAW  28-32 120-160  110-130

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