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1/8" X 39" ER90S-B9 THERMANIT MTS 3-LNI Low Alloy Steel TIG Rod 11 lb Tube

Airgas Part #:UTP21846

Manufacturer Part #:21846

$61.68 /US Pound
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$1,356.96 Box 22 US pound / Box
US pound
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Item Details

  • Thermanit MTS 3 LNi is a solid filler rod designed for manual gas tungsten arc welding. The 9Cr-1Mo-V-Nb type weld metal exhibits a fully tempered martensitic microstructure with favorable mechanical properties in post weld heat treated condition. The range of application covers joint welding of similar alloyed creep strength enhanced ferritic steels like ASTM grade 91 tube, pipe, plate, forgings and castings, used in the thermal power and petrochemical industry. The chemical composition is optimized in order to provide a high creep resistant and ductile weld metal after post weld heat treatment along with low level of trace elements. Thanks to the restricted Mn+Ni content of less than 1.0 wt. % the AC1 temperature is certainly above 1455ºF.

Product Attributes

AWS Classification

» ER90S-B9

Trade Name



» 11 lb


» 1/8"


» 39"


» Tube