Incoloy 020 Welded Tubes Sulfuric Acid Resistant for Wastewater Treatment & Pickling Lines

Incoloy 020 welded tubes offer exceptional resistance to sulfuric acid and other aggressive chemicals, making them ideal for demanding industrial applications. These nickel-iron-chromium-molybdenum-copper alloy tubes provide superior performance in wastewater treatment systems and metal pickling operations where conventional stainless steels fail. Their welded construction combines cost-effectiveness with reliable corrosion resistance, delivering long service life in some of industry's most challenging environments.

Material Advantages

Superior Chemical Resistance

Excellent sulfuric acid resistance (up to 50% concentration at moderate temperatures)

Outstanding performance in phosphoric, nitric, and organic acids

Resists chloride-induced stress corrosion cracking

Maintains integrity in mixed acid environments

Mechanical Properties

Tensile strength: 550-690 MPa

Yield strength: ≥240 MPa

Elongation: ≥40%

Hardness: ≤90 HRB

Manufacturing Benefits

Precision-welded construction for consistent quality

Cost-effective alternative to seamless tubing

Available in various diameters and wall thicknesses

Can be supplied in annealed condition for optimal corrosion resistance

Key Applications

Wastewater Treatment Systems

Acid Waste Handling

Transport lines for sulfuric acid waste streams

Scrubber system components

Neutralization tank internals

Industrial Effluent Processing

Chemical plant wastewater collection systems

Metal finishing effluent lines

Flue gas desulfurization (FGD) discharge piping

Metal Pickling Operations

Pickling tank circulation systems

Acid recovery unit components

Rinse water transfer lines

Fume exhaust ducting

Chemical Processing

Sulfuric acid production equipment

Phosphate fertilizer manufacturing

Dye and pigment production systems

Industry Requirements

Wastewater Treatment Needs

✔ Long-term corrosion resistance in aggressive media

✔ Reduced maintenance requirements

✔ Compliance with environmental regulations

✔ Cost-effective material solutions

Pickling Line Operators Require

✔ Resistance to hot acid solutions

✔ Minimal metallic contamination

✔ Smooth internal surfaces to prevent particle buildup

✔ Weld integrity for pressurized systems

Quality Specifications

ASTM B729/B775 compliant

Full radiographic testing (RT) available

Hydrostatic testing per customer requirements

Material certification with traceability

Technical Comparison

Installation & Maintenance

Best Practices

Proper welding techniques using matching filler metals

Post-weld heat treatment when required

Regular visual inspections for early detection

Proper cleaning procedures after fabrication

Expected Service Life

5-10 years in continuous sulfuric acid service

3-5 years in mixed acid environments

10+ years in moderate wastewater applications

Conclusion

Incoloy 020 welded tubes provide an optimal combination of corrosion resistance and cost-effectiveness for sulfuric acid handling applications. Their superior performance in wastewater treatment and pickling lines makes them a preferred choice over standard stainless steels, offering extended service life with reduced maintenance costs.

For engineers and plant operators, specifying Incoloy 020 welded tubes ensures:

Reliable performance in aggressive chemical environments

Cost savings compared to higher-nickel alternatives

Regulatory compliance for hazardous material handling

Reduced downtime from corrosion-related failures

Available Support Services:

Material selection guidance

Welding procedure specifications

Custom fabrication options

Failure analysis and troubleshooting

FAQ:

Q: What is DLX Incoloy Alloy?

A: DLX Incoloy Alloy is a high-performance nickel-chromium alloy that is resistant to high-temperature corrosion and oxidation. It is commonly used in applications such as gas turbines, chemical processing, and nuclear reactors.

Q: What is the composition of DLX Incoloy Alloy?

A: DLX Incoloy Alloy consists of nickel, chromium, iron, and smaller amounts of other metals such as molybdenum, titanium, and aluminum. The exact composition can vary depending on the specific grade of Incoloy Alloy.

Q: What are the advantages of using DLX Incoloy Alloy?

A: DLX Incoloy Alloy has excellent resistance to high-temperature corrosion and oxidation, making it ideal for use in harsh environments. It also has good mechanical properties at both high and low temperatures, and is highly resistant to cracking and stress-corrosion.

Q: Where is DLX Incoloy Alloy manufactured?

A: DLX Incoloy Alloy is manufactured in China, where it is produced to strict quality control standards to ensure consistent performance and reliability.

Q: What are some common applications for DLX Incoloy Alloy?

A: DLX Incoloy Alloy is commonly used in applications such as gas turbines, chemical processing, and nuclear reactors. It is also used in the aerospace industry for parts such as exhaust nozzles and afterburner parts.