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ER 4340 - Mild Steel TIG Welding Rod - 10lb. Pack

ER 4340 - Mild Steel TIG Welding Rod - 10lb. Pack

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*Minimum Qty: 10 *Minimum Increments: 10
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ER 4340  (Priced Per Pound, Sold in Quantities of 10)

High-Performance Mild Steel TIG Welding Rod.

Class SAE 4340
AISI 4340
Available Diameters 1/16" & 3/32"
Length 36" (914mm)
Weight 10 lb. Pack

Approximate number of rods per 10 lb. pack for each diameter:

  • 1/16" (1.6mm): 260 - 300
  • 3/32" (2.4mm): 120 - 160

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.

(Rods priced per lb, sold in 10 lb boxes)


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