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  • Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod
  • Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod
  • Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod
  • Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod
  • Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod
  • Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod
Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod

Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod

  • 15 - 499 Kilograms
    $65
  • 500 - 49999 Kilograms
    $55
  • >= 50000 Kilograms
    $45

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Performance Welding: Designed for cobalt-based welding applications, such as overlay welding and repair of high-wear components. The ERCoCr-A (Stellite 6/Colmonoy 6) alloy ensures exceptional resistance to abrasion, corrosion, and high-temperature wear.
  • Versatile Material Compatibility: Suitable for welding on silver, cast iron, nickel, and iron-based substrates, adhering to AWS A5.21 standards for industrial-grade reliability.

Key features

  • 1. Material Technology

    • With cobalt-based alloy composition (Stellite 6/Colmonoy 6), achieve superior corrosion resistance and durability in high-temperature environments.

  • 2. Interactive Design

    • With uniform diameter and smooth surface, ensure consistent arc stability and precise welds for professional-grade results.

  • 3. Performance Parameters

    • With compatibility for cast iron, nickel alloys, and iron, deliver reliable performance across diverse materials.

  • 4. Scenario Solutions

    • Designed for industrial welding scenarios, handle heavy-duty applications requiring prolonged operation without degradation.

  • 5. Certification Standards

    • Certified to AWS A5.21 standards, ensuring compliance with industry regulations for quality and safety.

Product details

Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod

The Cobalt-based Welding Wire AWS A5.21 ERCoCr-A Stellite 6 Colmonoy 6 Nickel Welding Rod is engineered for high-performance welding in demanding applications. Crafted from a cobalt-nickel alloy with trace iron and silver, it offers exceptional wear resistance, thermal stability, and corrosion protection. The smooth, cylindrical rods are bundled for safe handling and are certified to AWS A5.21 standards.

Technical specifications

FeatureSpecificationBenefit
MaterialCobalt-based alloy (Stellite 6/Colmonoy 6), nickel, iron, silverHigh hardness, corrosion resistance, and thermal stability
ShapeCylindrical, standard diameter (unspecified)Consistent welding performance across applications
Operating Temp.Standard range (up to 1,200°C)Safe for most industrial welding processes
CertificationAWS A5.21Ensures compliance with global welding standards
ApplicationMIG/TIG welding, wear-resistant coatingsIdeal for heavy machinery, aerospace, and high-heat environments

Customization guide

Adjustable parameters include:

  • Material composition: Tailor cobalt/nickel ratios for specific corrosion or thermal needs.
  • Diameter: Customize to suit weld thickness (e.g., 1.6mm for thin materials, 3.2mm for heavy-duty applications).
  • Coating: Add flux-cored or ceramic coatings for enhanced arc stability.

Get inspired

With cobalt’s unmatched wear resistance, this welding rod enables durable repairs for machinery parts, turbine blades, and high-wear components. Its nickel content ensures corrosion resistance in harsh environments, while the smooth surface guarantees a clean, precise weld.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Coating TypeStandard fluxEnhanced ceramicPremium dual-layer
Diameter Tolerance±0.1mm±0.05mm*±0.02mm*
Coefficient of Thermal Expansion6.5 µm/m°C5.8 µm/m°C5.0 µm/m°C*

Supplier's note

  1. Technical Breakthroughs:

    • Cobalt Content (35%+): Delivers 50% higher wear resistance than traditional stainless steel rods.
    • Nickel Alloying: Offers 2x corrosion resistance in acidic environments compared to carbon steel.
    • Precision Diameter Tolerance: Ensures 98% arc stability in automated welding systems.

  2. Version Selection Guide:

    • Base Model: Suitable for general workshops needing cost-effective solutions (e.g., repairing farm equipment).
    • Advanced Model: Ideal for precision manufacturing (e.g., automotive parts requiring tight tolerances).
    • Pro Model: Recommended for extreme environments (e.g., aerospace or offshore drilling, where thermal shock and corrosion are critical).

Example: The Pro version’s low thermal expansion (5.0 µm/m°C) ensures structural integrity in jet engine repairs, outperforming industry benchmarks by 20%. Pair it with its cobalt-rich core for seamless integration with high-temperature alloys.

Frequently asked questions

  • Which cobalt-based welding rod suits high-temperature applications like industrial machinery?

  • How to clean and maintain Stellite 6 welding rods for consistent performance?

  • Cobalt-based vs. nickel-based rods: Which is better for cast iron repair?

  • Can ERCoCr-A rods be customized for MIG welding on stainless steel?

  • Is the ERCoCr-A welding rod AWS A5.21 certified for aerospace applications?

  • What makes ERCoCr-A suitable for repairing high-wear nickel components?

  • How does this rod handle extreme heat compared to standard stainless steel rods?

  • What’s the difference between Stellite 6 and Colmonoy 6 in welding rods?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Cobalt-basedAerospace, exhaust systems, high-heat▲▲▲ 60% Co, 28% Cr, 12% W (ASTM A751)
1200°C max temp (AWS A5.21)		Extreme temp resistance (up to 1200°C)
Wear/corrosion resistance		High cost
Requires skilled welders (specialized techniques needed)
Nickel-basedChemical plants, marine environments▲▲ 60% Ni (ASTM A312)
1000°C max temp (AWS A5.18)		Corrosion resistance in harsh chemicals
Good ductility		Lower max temp than cobalt
Costly compared to mild steel
Stainless SteelFood processing, general fabrication▲ 18% Cr, 8% Ni (ASTM A276)
800°C max temp (ASTM A240)		Balanced corrosion/wear resistance
Cost-effective for moderate temps		Limited to 800°C
Less durable in extreme wear scenarios
Flux-coredOutdoor construction, thick materialsAWS A5.18 compliant
600°C max temp
High deposit rate ▲▲		Efficient for thick welds
Performs in windy conditions		Generates fumes
Requires post-weld cleaning
Aluminum-basedAutomotive/aerospace (lightweight)99% Al purity (ASTM B209)
500°C max temp
High conductivity ▲		Lightweight
Excellent thermal/electrical conductivity		Brittle at low temps
Requires precise temperature control
Mild SteelGeneral welding, structural work0.12–0.3% carbon (ASTM A53)
400°C max temp ▲▲▲		Inexpensive
Easy to weld with basic equipment		Poor corrosion resistance
Limited to low-temperature applications

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