Incoloy 330 Pipe Fittings have a special place among nickel-iron-chromium alloys used for thermal processing applications. By deliberately adding silicon to the base alloy, the alloy of UNS N08330 / DIN 1.4886 has improved resistance to oxidizing atmospheres which is not possible with normal austenitic grades. SS 330 / RA 330 Pipe Fittings possess outstanding carburization resistance and retains strength up to 2200°F (1200°C) and exhibits the same microstructure even after prolonged exposure to extreme temperatures. This makes them the best product for industrial heating furnaces, conveyor systems, retorts, baskets and parts of a petrochemical furnace.
Amardeep Steel Centre is one of the best manufacturers, suppliers and exporters of ASTM B366 Incoloy 330 Pipe Fittings (Seamless and Welded). We stock Incoloy 330 Butt Weld Fittings and Incoloy 330 Forged Fittings in sizes of 1/2” to 48” in accordance with ASME B16.9 and ASME B16.28 dimensional standards with material test certificates from EN 10204 3.1.
ASTM B366 Incoloy 330 Pipe Fittings Specifications
Parameter | Details |
Standards | ASTM / ASME |
Designation | B366, SB366 |
Dimension Standard | ASME B16.9, ASME B16.28, MSS SP-43, MSS SP-75 |
Grade | Incoloy 330 (UNS N08330, WNR 1.4886), also known as SS 330, RA 330 |
Type | Seamless Butt Weld Fittings, Welded Butt Weld Fittings |
Seamless Size Range | 1/2" – 10" |
Welded Size Range | 1/2" – 48" |
Schedule | Sch 10 to Sch XXS |
Types | Elbow, Tee, Reducer, Cap, Stub End, Bend, Cross, Nipple, Lateral Tee |
Types of Incoloy 330 Pipe Fittings
ASTM B366 Incoloy 330 Pipe Fittings include the following types:
- Incoloy 330 Long Radius Elbow (90° & 45°, LR & SR)
- Incoloy 330 Equal Tee & Reducing Tee
- Incoloy 330 Concentric & Eccentric Reducer
- Incoloy 330 End Pipe Cap & Dish Cap
- Incoloy 330 Cross (Equal & Reducing)
- Incoloy 330 Stub End (Long & Short)
- Incoloy 330 Pipe Bend (1.5D to 5D)
- Incoloy 330 U-Bend & 180° Elbow
- Incoloy 330 Lateral Tee
- Incoloy 330 Pipe Nipple
Need Incoloy 330 Pipe Fittings? Amardeep Steel Centre — Seamless & Welded, ASTM B366, Fast Global Delivery | Request a Quote |
Incoloy 330 Chemical Composition
Grade | C | Mn | Si | S | Fe | Ni | Cr | Cu |
Incoloy 330 / UNS N08330 | ≤ 0.05 | ≤ 2.0 | 0.75–1.50 | ≤ 0.03 | Balance | 34.0–37.0 | 17.0–20.0 | ≤ 1.0 |
Incoloy 330 Mechanical Properties
Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%) | Elongation |
Incoloy 330 | 8.08 g/cm³ | 1355–1400°C | 620 MPa | 275 MPa | 40% min |
Equivalent Grades of Incoloy 330
Standard | UNS | Werkstoff Nr. | Common Trade Names |
Incoloy 330 | N08330 | 1.4886 | SS 330, RA 330, Alloy 330, RA330® |
Applications of Incoloy 330 Pipe Fittings
ASTM B366 UNS N08330 Pipe Fittings are used across:
- Industrial heating furnaces — retorts, muffles, boxes, baskets, fixtures
- Petrochemical furnace parts and reformer tubes
- Heat-treat furnace conveyor systems
- Boiler fixtures and gas turbine components
- Salt pots and perlite systems
- Chemical and food processing equipment
- High-temperature fans and ducting
Testing & Inspection
Incoloy 330 Pipe Fittings from Amardeep undergo the following quality checks:
- Mechanical Testing — Tensile, Hardness, Impact
- Chemical Analysis — Spectro Analysis
- PMI (Positive Material Identification) Testing
- Intergranular Corrosion (IGC) Test
- Pitting Resistance Test
- Flattening & Flaring Test
- Hydrostatic / Pressure Test
- 100% Radiography Test (on request)
- Micro & Macro Examination
Packaging & Export Supply
Incoloy 330 Butt Weld Fittings are individually wrapped and packed in seaworthy plywood cases or wooden pallet packaging. Each piece is marked with heat number, grade, size, and part number. Fumigation certificates are provided for all international shipments. Amardeep exports SS 330 Pipe Fittings to Europe, the Middle East, the USA, Southeast Asia, and 80+ countries globally.
Frequently Asked Questions (FAQs)
Q1. What is Incoloy 330 used for in pipe fittings?
Incoloy 330 Pipe Fittings are used in heat treatment furnaces, petrochemical furnace parts, retorts, boilers, gas turbines, and high-temperature conveyor systems for their carburization and oxidation resistance up to 1200°C.
Q2. What is the role of silicon in Incoloy 330 Pipe Fittings?
Silicon (0.75–1.50%) in Incoloy 330 Pipe Fittings enhances resistance to oxidizing and carburizing atmospheres. It forms a protective silica layer at elevated temperatures that standard stainless steels cannot replicate.
Q3. What is the maximum temperature rating of Incoloy 330?
Incoloy 330 Pipe Fittings can withstand continuous service up to 2200°F (1200°C) and may be forged between 2100°F and 1750°F. They combine high-temperature strength with excellent oxidation and carburization resistance.
Q4. What ASTM standard covers Incoloy 330 Pipe Fittings?
Incoloy 330 Pipe Fittings are covered by ASTM B366 / ASME SB366 for material. Dimensional requirements follow ASME B16.9, ASME B16.28, and MSS SP-43 for butt weld types.
Get an Instant Quote | Amardeep Steel Centre — Incoloy 330 Pipe Fittings Manufacturer in India | ASTM B366 | EN 10204 3.1 |
