Washington Alloy

ER 4340 - Mild Steel TIG Welding Rod - 1lb. Pack

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Minimum Purchase:
1 unit
$78.06 - $86.00


ER 4340

High-Performance Mild Steel TIG Welding Rod.

Class SAE 4340
AISI 4340
Available Diameters 1/16" & 3/32"
Length 36" (914mm)
Weight 1 lb. Pack

Approximate number of rods per 1 lb. pack for each diameter:

  • 1/16" (1.6mm): 26 - 30
  • 3/32" (2.4mm): 12 - 16

ER 4340 - AISI 4340

ER4340 is a low alloy, copper-coated wire designed for the welding of heat-treatable, low alloy steels such as the SAI / AISI 4300 series where higher carbon grades are used or where greater tensile strengths are desired.

A pre-heat of 400°F - 550°F is required for some of the higher carbon grades to prevent cracking.

Proper heat-treating procedures will produce tensile strengths of 190,000 - 265,000 psi.

Hardness varies with heat-treating.

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Additional Information

Material Type:
Mild Steel
Wire Diameter:
1/16" (1.6mm)
Wire Diameter:
3/32" (2.4mm)
Pack Size:
1 lb. Mini Pack
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1 Review

  • 1

    Stijn We apologize for the delivery challenges…

    Posted by Stijn V. on Oct 16th 2018

    Stijn: We apologize for the delivery challenges with your 1st order. We're happy to see that your subsequent orders were delivered on time. Don't hesitate to let us know if there's anything else we can do to serve your TIG Rod and welding supply needs.

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