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BM410NM00001870E60 - E410NiMo 3/16 Inch Martensitic Stainless Stick Electrode

Packaging: 10lb tube
$25.44/lb

Package Price:

$254.40/10lb tube

Usually ships within 3-5 business days

OVERVIEW

Heavy-Duty Repair for Turbines and Valves

When you are tasked with repairing heavy industrial equipment like hydro turbine runners, pump casings, or high-pressure valves, you need a rod that runs smooth and deposits tough metal. The Exocor E410NiMo 3/16" stick electrode is your go-to solution for welding "soft" martensitic stainless steels. Unlike standard 410 rods which can be brittle, this modified alloy contains nickel and molybdenum, making the weld metal much tougher and more resistant to cracking. It is the industry standard for working on CA6NM castings often found in power plants and heavy fluid handling systems.

The 3/16-inch diameter is perfect for filling large grooves and building up worn surfaces efficiently. It runs on Direct Current Electrode Positive (DCEP) and provides a stable arc with manageable slag, allowing you to lay down consistent beads even in deep cavities. The coating is designed to protect the weld pool from atmospheric contamination while ensuring a clean deposit that resists cavitation and pitting—common issues in underwater or high-flow machinery.

Using E410NiMo helps you avoid the headaches of weld cracking that often plague standard stainless repairs. While it is a high-performance rod, remember that the base metal usually likes a bit of heat before you start, and a stress-relief bake afterwards ensures the repair lasts for years. Whether you are building up a worn turbine blade or fixing a crack in a massive valve body, this electrode gives you the confidence that your weld will hold up under extreme pressure and constant vibration.

Additional Information
Brand:Exocor
Diameter:5.0mm (3/16")
Grade:E410NiMo
Weld Process:Stick (SMAW)
Polarity:DC
AWS Classification:E410NiMo
Rod Type:Stick Electrode
Core Material:Martensitic Stainless Steel
Coating Type:Basic
Welding Position:Flat, Horizontal
Applications:Hydro Turbines, Valves, Pumps, CA6NM Castings
Packaging Description:10lb tube
Packaging:10 lb Tube
Position:All Position

INCLUDED

  • 10lb (approx.) Tube of E410NiMo 3/16" Coated Electrodes

APPLICATIONS

  • Repairing hydroelectric turbine runners and wicket gates
  • Welding ASTM A487 Grade CA6NM castings
  • Fabrication and repair of high-pressure valve bodies
  • Pump casings and impellers subject to cavitation
  • Offshore and marine components requiring high strength and erosion resistance

FAQ

E410NiMo contains added Nickel (approx. 4.5%) and Molybdenum (approx. 0.5%). This modification eliminates ferrite in the microstructure, resulting in significantly better toughness and ductility compared to standard E410.

This electrode is designed to run on Direct Current Electrode Positive (DCEP).

Yes, a preheat of approximately 100°C to 150°C (212°F - 300°F) is typically recommended to prevent cracking, especially on heavy sections.

Yes, to achieve optimal ductility and toughness, PWHT at 600°C - 620°C (1110°F - 1150°F) is usually required after welding.

The 3/16" diameter is quite large and is generally best suited for flat and horizontal positions. Smaller diameters are preferred for out-of-position welding.

It is primarily designed for welding cast martensitic stainless steels like ASTM A487 Grade CA6NM, as well as 410 stainless steel where improved toughness is desired.

The weld deposit offers excellent resistance to cavitation and erosion, which are the primary wear factors in hydroelectric turbine environments.