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Weld Star Alloy Nickel C22 TIG Rods 3.2mm 5kg (NiCrMo-10)

£355.00 ex VAT

Further Reductions Available On Request 01276 505012

  • TIG Filler Rods
  • 5kg Pack – 3.2mm
  • C22 Nickel Alloy
SKU: 6011100601 Categories: ,



AWS A5.14 – ER NiCrMo-10

A 5KG pack of Weld Star 3.2mm alloy C22 TIG welding wire (NiCrMo-10).  Designed specifically for joining C22, 625 and 825 materials or a combination of these alloys.  C22 is noted for its excellent resistance to the effects of stress and cracking corrosion.  Weld Star Alloy C22 TIG welding rods also have a highly effective ability to resist pitting and crevice corrosion.  These are commonly regarded as two of the most difficult forms of corrosion to detect and therefore can significantly impact on weld integrity.

C22 TIG rods also have a good capacity to withstand the effects of stress and cracking corrosion even at high temperatures.  They are extensively used for overlays and cladding of lower alloy steels.

Typically, Weld Star Alloy C22 TIG wire is used in very extreme environments such as highly corrosive chemical processing plants, severe offshore and petrochemical settings, waste water treatment, manufacture of pesticides and equipment for chlorination plants.

Features & Benefits
  • Designed for welding Nickel alloys including C22, 625 and 825.
  • Excellent resistance to stress cracking
  • Good levels of resistance to pitting corrosion
  • Strong ability to withstand the effects of elevated temperatures
Applications / Industries
  • Petrochemical
  • Equipment for chlorination plants.
  • Sever Offshore Environments
  • Waste water treatment
  • Manufacture of pesticides
  • Chemical processing plants
Pitting corrosion

Attacks at a rapid pace in small / specific areas, forming multiple cavities, holes or pits in metal.  It is considered to be a very serious form of corrosion, this is because it is very difficult to detect and combat until it’s too late.  The effects on engineering projects can be catastrophic, sometimes resulting in entire system failures.  There are a number of measures that can be taken to prevent possible pitting corrosion attacks including:

    • The use of metal surface cleaners that are specifically designed for the prevention of this issue.
    • Use of more corrosion resistant materials where possible
    • Ensure base materials are cleaned of fluids on a regular basis
Crevice corrosion

Refers to a localised attack on metals at or immediately next to a gap or crevice joining both materials, where a stagnant electrolyte is present.  It is possible for this form of corrosion to occur between metal and non-metal surfaces as well as two metal surfaces.  In the first instance, the electrolyte will not present any threat.  As time increases and oxygen levels in the liquid decrease a chemical transition occurs. Where acid starts to form, attacking the material surfaces. If left unchecked this form of corrosion can cause structural integrity issues.


Chemical Composition %
C% Mn% Fe% P% S% Si% Cu%
max max 2.00 max max max  max
0.010 0.50 6.00 0.020 0.010 0.08  0.50
Ni% Co% Cr% Mo% V% W%
49.00 max 20.00 12.50 max 2.50
min 2.50 22.50 14.50 0.30 3.50


Mechanical Properties
Tensile Strength ≥690 MPa
Yield Strength
Impact Strength

Mechanical properties are approximate and may vary based on the heat, shielding gas, welding parameters and other factors.


EN ISO 18274 – Ni 6022 – NiCr21Mo13Fe4W3
AWS A5.14 – ER NiCrMo-10


Shielding Gases

EN ISO 14175 – TIG: I1 (Argon)


Welding Positions

EN ISO 6947 – PA, PB, PC, PD, PE, PF, PG

Typical Base Materials

Alloy 22, Alloy 625, Alloy 825, Alloy 926*
* Illustrative, not exhaustive list


In Conclusion

Overall Weld Star Alloy C22 TIG rods are designed specifically for welding C22, 625 and 825 metals or a combination of these three alloys.  This filler wire is noted for its exceptional capacity to withstand the effects of varying forms of corrosion. C22 is particularly effective against pitting and crevice corrosion which can easily go undetected, resulting in serious failure of weld integrity.  It is often used in very severe environments including chemical processing plants, offshore facilities and waste water treatment.

Images are for illustration purposes only.




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