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MK10018D200125OE00 - Hobart Hoballoy 10018-D2 1/8" Stick Electrode 50lb

Packaging: 50 lb Can
$8.46/lb

Package Price:

$423.00/50 lb Can

Usually ships within 3-5 business days

OVERVIEW

Heavy-Duty Welding with Hobart Hoballoy 10018-D2

When your project demands more strength than a standard 7018 rod can provide, the Hobart Hoballoy 10018-D2 is your go-to solution. Designed for the toughest jobs in the industry, this 1/8-inch stick electrode delivers a massive 100,000 psi tensile strength, making it ideal for repairing heavy earthmoving equipment, crane booms, and high-stress structural steel. If you are welding on manganese-molybdenum castings or high-strength alloy steels, this rod gives you the confidence that your weld will hold up under extreme loads and harsh conditions.

Welders appreciate the Hoballoy 10018-D2 for its smooth running characteristics. Despite being a high-strength rod, it offers a stable arc that is easy to control in all positions—whether you are welding flat, vertical-up, or overhead. The slag coverage is complete but detaches easily, saving you time on cleanup and grinding between passes. The bead profile is smooth and uniform, which is essential for critical repairs where stress concentrations must be minimized. Because it runs on both DCEP and AC, you can use it with a wide variety of welding machines, from shop-based rectifiers to portable engine drives.

Moisture is the enemy of high-strength welding, leading to under-bead cracking that can cause catastrophic failure. Hobart has engineered this electrode with an "H4R" moisture-resistant coating. This means the flux resists absorbing humidity from the air much better than standard rods, keeping hydrogen levels low and your welds crack-free. This is especially important when working outdoors or in humid environments where keeping rods dry is a constant battle.

This 50lb can is the standard bulk package for professional fabrication shops and field repair trucks. It ensures you have enough filler metal on hand for large multi-pass welds on thick plate. Whether you are fixing a cracked excavator bucket, fabricating a pressure vessel, or joining high-yield pipe, the Hobart Hoballoy 10018-D2 provides the reliability and performance professional welders demand. Remember to keep your open cans in a rod oven to maintain that factory-fresh performance.

Additional Information
Brand:Hobart
Diameter:3.2mm (1/8")
Packaging:50 lb Can
Weld Process:Stick (SMAW)
Position:All Position
Polarity:AC/DCEP
Grade:Steel
AWS Classification:E10018-D2-H4R
Tensile Strength:100,000 psi (min)
Yield Strength:87,000 psi
Alloy Type:Manganese-Molybdenum
Coating Type:Low Hydrogen Iron Powder
Moisture Resistance:H4R (Moisture Resistant)
Welding Current:DCEP, AC
Packaging Description:50 lb Can

INCLUDED

  • 50lb Can of Hoballoy 10018-D2 1/8" Stick Electrodes
  • Instruction Label

APPLICATIONS

  • Heavy equipment repair (excavators, bulldozers, cranes)
  • Pressure vessel fabrication
  • High-pressure piping systems
  • Manganese-molybdenum steel castings
  • Structural steel fabrication requiring 100ksi strength
  • Mining machinery maintenance
  • Railroad car manufacturing

FAQ

The primary difference is tensile strength and alloy composition. E7018 has a minimum tensile strength of 70,000 psi and is a mild steel rod. E10018-D2 has a minimum tensile strength of 100,000 psi and contains Manganese and Molybdenum for welding high-strength low-alloy steels.

The 'D2' suffix designates the specific chemical composition of the weld metal. In this case, it indicates a Manganese-Molybdenum steel alloy, typically containing 1.25-2.00% Manganese and 0.25-0.45% Molybdenum.

Yes. As a low-hydrogen electrode (EXX18), it is highly recommended to store opened containers in a holding oven at 250°F-300°F to prevent moisture absorption. If exposed to air for too long, they may need reconditioning at higher temperatures.

For the 1/8" (3.2mm) diameter Hoballoy 10018-D2, the recommended amperage range is typically between 90 and 160 Amps, depending on the position and base metal thickness.

Yes, the Hoballoy 10018-D2 is designed to operate on both Direct Current Electrode Positive (DCEP) and Alternating Current (AC), providing flexibility for different power sources.

H4R indicates the diffusible hydrogen content and moisture resistance. 'H4' means less than 4ml of hydrogen per 100g of weld metal, and 'R' indicates the coating is moisture-resistant after exposure to high humidity.

No, like most EXX18 low-hydrogen electrodes, the 10018-D2 is designed for vertical-up welding. Vertical down can lead to slag entrapment and lack of fusion.

It is compatible with high-strength steels such as ASTM A148, A225, A302, A441, and manganese-molybdenum castings where weld strength must match or exceed 100,000 psi.