Product Catalog

ER90S-B3


Alloy Type:

ER90S-B3 is used for welding 2-1/4 chrome-1 molybdenum steels, frequently piping in the petroleum industry and for elevated temperature service.  Preheat is necessary and a post-weld heat treatment is usually required.

 

Typical Applications:   boilers, pipelines, steam boilers, pressure tanks, oil industry, thermo electrical industry, chemical and petroleum industry

 

AWS Class: ER90S-B3 Certification:  AWS A5.28/A5.28M:2005
Alloy:  ER90S-B3 AWS/ASME SFA A5.28

 

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

GMAW-DCEP

 

Tensile Strength, kpsi: 90 min
Yield Strength, kpsi: 78 min
Elongation %: 17 min

 

 

Typical Wire Chemistry as per AWS A5.28 (single values are maximum)

 

C Mn Si P S Ni Cr Mo Cu Other
0.07-0.12 0.40-0.70 0.40-0.70 0.025 0.025 0.2 2.30-2.70 0.90-1.20 0.35 0.50

 

 

Typical Welding Parameters
Diameter Process Volt Amps Shielding Gas
in (mm)
 .035  (0.9) GMAW  28-32 165-200 Spray transfer 98% Argon/2% Oxygen
 .045  (1.2) GMAW  30-34 180-220  Spray transfer 98% Argon/2% Oxygen
 1/16  (1.6) GMAW  30-34 230-260  Spray transfer 98% Argon/2% Oxygen
 .035  (0.9) GMAW  22-25 100-140  Short Circuiting Transfer 90% Helium/  75% Argon / 25% CO2
 .045  (1.2) GMAW  23-26 120-150 Short Circuiting Transfer 90% Helium/  75% Argon / 25% CO2
 1/16  (1.6) GMAW  23-26 160-200 Short Circuiting Transfer 90% Helium/  75% Argon / 25% CO2
 1/16  (1.6) GTAW 12-15 100-125  100% Argon
 3/32  (2.4) GTAW  15-20 125-175  100% Argon
 1/8  (3.2) GTAW  15-20 175-250  100% Argon

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