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RA330® (Alloy 330 / SS330) Pipes Supplier, Exporter & Stockist

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Product Overview –RA330 (Alloy 330 / Stainless Steel 330) Pipes

RA330 (Alloy 330 / Stainless Steel 330) Pipes, are premium heat-resistant austenitic nickel-chromium-iron alloy pipes engineered for continuous operation in extremely high-temperature environments. These pipes provide exceptional resistance to oxidation, carburization, nitriding, thermal shock, thermal fatigue, and scaling, making them one of the most trusted materials for furnace equipment, heat treatment plants, petrochemical processing, power generation, and thermal processing industries.

Unlike conventional stainless steel grades, RA330 Pipes retain excellent mechanical strength and structural stability even during prolonged exposure to temperatures approaching 1149°C (2100°F). Their balanced nickel and chromium content offers superior corrosion resistance while maintaining excellent fabrication and welding characteristics. These properties make Alloy 330 Pipes highly suitable for demanding industrial applications where prolonged exposure to heat, oxidizing atmospheres, carburizing gases, and cyclic thermal loading are common.

Engineers, EPC contractors, maintenance teams, and procurement professionals frequently search for RA330 Pipes Supplier, Alloy 330 Pipes, SS330 Pipes, UNS N08330 Pipes, ASTM B535 Pipes, High Temperature Stainless Steel Pipes, Heat Resistant Alloy Pipes, Furnace Pipes, Petrochemical Pipes, Industrial Furnace Tubes, Heat Treatment Alloy Pipes, RA330 Pipe Price, RA330 Pipes UAE, RA330 Pipes Saudi Arabia, Buy Alloy 330 Pipes, and Nickel Alloy Heat Resistant Pipes.

As a trusted supplier, exporter, and stockist of RA330® (Alloy 330 / Stainless Steel 330) Pipes,we serve customers across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, India, Africa, Europe, and Southeast Asia, delivering quality products, competitive pricing, and reliable logistics for industrial and infrastructure projects.

Material Specification -RA330 (Alloy 330 / Stainless Steel 330) Pipes

Material RA330 / Alloy 330 / SS330
UNS Number N08330
Product Type Seamless, Welded & ERW Pipes
ASTM Specification ASTM B535

Technical Specifications –RA330 (Alloy 330 / Stainless Steel 330) Pipes

Outside Diameter: ½" NB to 24" NB
Wall Thickness: SCH 5 to SCH XXS
Length: Single Random, Double Random & Custom Length
Pipe Ends: Plain End, Bevel End, Threaded
Surface Finish: Annealed, Pickled, Bright Annealed, Polished
Alloy Family: Nickel-Chromium-Iron Alloy
Available Sizes: ½",¾",1",1¼",1½",2",2½",3",4",5",6",8",10",12",14",16",18",20"24"

Custom lengths and project-specific sizes are available on request.

Third Party Inspection Available

All specifications are in accordance of RA330 (Alloy 330 / Stainless Steel 330) . Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.

Chemical Composition –RA330 (Alloy 330 / Stainless Steel 330) Pipes

(As per ASTM specification)
Element Max (%)
Carbon (C): ≤0.08%
Silicon (Si) 1.00–1.50%
Manganese (Mn): ≤2.00%
Sulfur (S): ≤0.03%
Nickel (Ni) 34.00–37.00%
Iron (Fe) Balance
Chromium (Cr) 17.00–20.00%
Phosphorus ≤0.03%
Note: The carefully balanced nickel and chromium chemistry provides excellent oxidation and carburization resistance, while the controlled silicon content enhances scaling resistance during prolonged exposure to elevated temperatures.

Mechanical Properties of RA330 (Alloy 330 / Stainless Steel 330) Pipes

Property Value (Min)
Yield Strength (0.2%) ≥ 275 MPa
Tensile Strength ≥ 655 MPa
Elongation ≥35%
Melting Point 1399–1443°C
Density 7.94 g/cm³
Hardness ≤185 HB
Modulus of Elasticity 197 GPa

Note :RA330 maintains excellent mechanical strength and ductility during continuous high-temperature service, making it suitable for critical thermal processing equipment operating under cyclic heating and cooling conditions.

Why Choose RA330 (Alloy 330 / Stainless Steel 330) Pipes?

🔸 Excellent oxidation resistance up to 1149°C
🔸 Outstanding carburization resistance
🔸 Excellent nitriding resistance
🔸 Superior thermal fatigue resistance
🔸 Excellent pitting resistance
🔸 Excellent mechanical strength
🔸 Outstanding weldability
🔸 Low maintenance cost

Applications of RA330 (Alloy 330 / Stainless Steel 330) Pipes

Where RA330 (Alloy 330 / Stainless Steel 330) Pipes are used:

  • 🔸Industrial Furnace Tubes
  • 🔸Subsea Equipment
  • 🔸Offshore Equipment
  • 🔸Heat Exchangers
  • 🔸High Pressure Piping
  • 🔸Pressure Vessels
  • 🔸Mining Equipment
  • 🔸Furnace Components
  • 🔸Decorative Steel Projects

Understanding Stainless Steel Grades ?

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Key Advantages of RA330 (Alloy 330 / Stainless Steel 330) Pipes

Long service life Excellent oxidation resistance up to 1149°C Excellent resistance to chloride stress corrosion cracking Good corrosion resistance Excellent scaling resistance

Best Alternatives to RA330 (Alloy 330 / SS330) Pipes

1.Inconel 601 Pipes

    This process provides:
  • 🔸 Superior oxidation resistance
  • 🔸 Excellent scaling resistance above 1000°C
  • 🔸 Outstanding thermal stability

Best for:Industrial furnaces and thermal processing.

2.Incoloy 800H / 800HT Pipes

  • 🔸 Excellent creep strength
  • 🔸 High-temperature corrosion resistance
  • 🔸 Good fabrication properties

Best for: Power plants and petrochemical industries.

3.Stainless Steel 310S Pipes

  • 🔸 Excellent heat resistance
  • 🔸 Good oxidation resistance
  • 🔸 More economical than nickel alloys

Best for: Medium-temperature furnace and heat treatment applications.

Looking for a reliable RA330 (Alloy 330 / SS330) Pipes supplier, exporter, or stockist for furnace construction, petrochemical processing, heat treatment, or high-temperature industrial applications?

Request a Quote Today for RA330 (Alloy 330 / Stainless Steel 330) Pipes !

Frequently Asked Questions

–RA330 (Alloy 330 / Stainless Steel 330) Pipes

What are RA330 (Alloy 330) Pipes used for?
RA330 Pipes are primarily used in high-temperature industrial applications such as heat treatment furnaces, petrochemical plants, thermal processing equipment, power plants, furnace rollers, radiant tubes, retorts, heat exchangers, and industrial kilns. Their excellent oxidation resistance allows continuous service in temperatures approaching 1149°C.
What is the maximum operating temperature of RA330 Pipes?
RA330 Pipes are designed for continuous service up to approximately 1149°C (2100°F) in oxidizing environments while maintaining excellent mechanical strength, dimensional stability, and oxidation resistance.
What makes RA330 better than conventional stainless steel pipes?
Compared to standard stainless steels such as SS304 or SS316, RA330 contains a higher nickel content, providing significantly better resistance to oxidation, carburization, thermal fatigue, scaling, and creep at elevated temperatures. It is specifically engineered for prolonged high-temperature industrial service.
Are RA330 Pipes suitable for furnace applications?
Yes. RA330 is one of the industry's preferred materials for furnace construction. It performs exceptionally well in radiant tubes, furnace rollers, retorts, muffles, annealing furnaces, continuous furnaces, and other thermal processing equipment exposed to repeated heating and cooling cycles.
Can RA330 Pipes be welded?
Yes. RA330 Pipes offer excellent weldability using standard nickel alloy welding procedures. Proper filler metals and qualified welding practices help maintain corrosion resistance and high-temperature performance after fabrication.
Are RA330 Pipes resistant to carburization and nitriding?
Yes. One of the major advantages of Alloy 330 is its exceptional resistance to carburizing and nitriding atmospheres, making it highly suitable for heat treatment facilities, carburizing furnaces, and thermal processing industries.
What certifications are available with RA330 Pipes?
RA330 Pipes can be supplied with EN 10204 3.1 Mill Test Certificates, Positive Material Identification (PMI) reports, chemical and mechanical test reports, dimensional inspection reports, and third-party inspection certificates according to project requirements.
Which industries commonly purchase RA330 Pipes?
Industries include petrochemical plants, refineries, heat treatment companies, industrial furnace manufacturers, power plants, steel mills, glass manufacturers, ceramic plants, mining operations, heavy engineering companies, and EPC contractors involved in high-temperature industrial projects.
What sizes of RA330 Pipes are commonly available?
RA330 Pipes are commonly supplied from ½" NB to 24" NB in Seamless, Welded, and ERW construction with wall thicknesses ranging from SCH 5 to SCH XXS, along with custom dimensions based on project specifications.
Which countries do you export RA330 Pipes to?
We supply and export RA330 (Alloy 330 / SS330) Pipes to customers across the UAE, Saudi Arabia, Qatar, Oman, Kuwait, Bahrain, India, Africa, Southeast Asia, Europe, and other global industrial markets with complete documentation and inspection support.