Hastelloy C22 straight weld wires
Hastelloy C22 straight weld wires are a type of nickel-based high-temperature alloy welding material. They are designed specifically for welding Hastelloy C22 alloy (UNS N06022) or similar corrosion-resistant materials. The composition of Hastelloy C22 straight weld wires matches the base metal closely. It mainly includes elements like nickel (Ni), chromium (Cr), molybdenum (Mo), and tungsten (W). The low carbon content (≤0.015%) is optimized to improve resistance to intergranular corrosion. The form of Hastelloy C22 straight weld wires is straight. The diameter usually ranges from 1.6 mm to 4.0 mm. They are suitable for welding processes such as gas tungsten arc welding (GTAW/TIG) or plasma arc welding (PAW).
Hastelloy C22 straight weld wires are widely used in fields like chemical engineering, petroleum, environmental protection, energy, and marine engineering. They are used in reactors, flue gas desulfurization equipment, seawater desalination devices, and pharmaceutical equipment. The excellent corrosion resistance and high-temperature stability of Hastelloy C22 straight weld wires make them suitable for strong acids, chlorides, and high-temperature environments. They can effectively extend the service life of equipment and reduce maintenance costs. They are the ideal welding material for harsh working conditions.
Features of Hastelloy C22 straight weld wires
Excellent Corrosion Resistance
Hastelloy C22 straight weld wires perform well in both oxidizing and reducing media. They can withstand hydrochloric acid, sulfuric acid, chloride solutions, seawater, and mixed acids (such as nitric acid/hydrochloric acid).
They have strong resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC), especially in high-temperature environments with halogens.
High-Temperature Stability
Hastelloy C22 straight weld wires keep strength and oxidation resistance at high temperatures (up to 1200°C). They are good for situations with frequent thermal cycling.
Good Welding Processability
Hastelloy C22 straight weld wires have low sensitivity to hot cracking. The welding pool flows well and forms a nice shape. The weld can be used directly after welding without heat treatment.
They have high metallurgical compatibility with the base metal. The weld area has similar corrosion resistance to the base metal, avoiding local corrosion risks.
Low Carbon Design
The ultra-low carbon content in Hastelloy C22 straight weld wires reduces carbide precipitation. This ensures good intergranular corrosion resistance in the heat-affected zone (HAZ) after welding.
Applications of Hastelloy C22 straight weld wires
Chemical and Petroleum Fields
Hastelloy C22 straight weld wires are used to make reactors, heat exchangers, and piping systems. They work well in harsh environments with chloride ions, sulfides, or acidic media (such as flue gas desulfurization units).
Environmental and Energy Sectors
Hastelloy C22 straight weld wires are used in waste-to-energy plants for flue gas treatment systems and nuclear fuel reprocessing equipment. They can resist high-temperature corrosive gases.
Marine and Pharmaceutical Engineering
Hastelloy C22 straight weld wires are used for welding and repairing seawater desalination equipment and pharmaceutical reactors. They meet the material purity requirements for sterile environments.
Special Scenarios
Hastelloy C22 straight weld wires are used in pulp bleaching equipment (to resist chlorine dioxide corrosion) and in pipelines for sour natural gas extraction.
|
Parameter |
Specification |
Remarks |
|
Material Standard |
AWS A5.14 (ERNiCrMo-10) / UNS N06022 |
Complies with international standards |
|
Diameter (mm) |
1.6, 2.0, 2.4, 3.0, 3.2, 4.0 |
Common sizes for TIG/PAW welding |
|
Length (mm) |
1000, 1500, 2000 (or custom) |
Standard/cut-to-length options |
|
Form |
Straight cut rods |
For GTAW (TIG) or plasma welding |
|
Chemical Composition (%) |
Ni≥56, Cr 20-22.5, Mo 12.5-14.5, W 2.5-3.5, Fe 2-6, C≤0.015 |
Low carbon for corrosion resistance |
|
Tensile Strength (MPa) |
≥690 |
High weld joint strength |
|
Elongation (%) |
≥40 |
Excellent ductility |
|
Welding Process |
GTAW (TIG), PAW |
Shielded by inert gas (Ar/He) |
|
Typical Applications |
HCl/H₂SO₄ environments, chlorides, high-temperature oxidizing/reducing media |
Resists pitting, SCC, and crevice corrosion |
FAQ
Are you a factory or manufacturer?
A: Yes, we are a factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.
What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.
Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.
Do you do spot quality inspection or full inspection?
A: 100% full inspection for sure. All unqualified products are discarded.
How do you ensure your lead time?
A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.
What is the MOQ of Hastelloy C22 straight weld wires ?
A: Depends on quantity, generally, no MOQ limit.
How to pay for it?
A: A bank transfer (T/T) will be acceptable.
What is the delivery time?
A: around 7-20 days which depends on the quantity and production.
What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo
What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.
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