Inconel 600 Pipes & Fittings
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Inconel 600 Pipes and Fittings Supplier in Mumbai, India
Nicorex Alloys is an ISO 9001 / ISO 14001 certified supplier of Inconel 600 pipes and pipe fittings based in Mumbai, India. We supply seamless and welded pipes per ASTM B167 / B516 / B517 / B829 / B163, with matching buttweld fittings per ASTM B366 (Grade WPNCI).
Inconel 600 is also known as Alloy 600, UNS N06600, and Werkstoff 2.4816. With 72% Ni minimum, 14-17% Cr, and 6-10% Fe, this solid-solution-strengthened nickel-chromium-iron alloy resists high-temperature oxidation, carburisation, nitriding, and chloride stress corrosion cracking where other nickel alloys fail. The alloy maintains useful strength up to 1093°C (2000°F) and retains full ductility at cryogenic temperatures. Furnace retorts above 1000°C, nuclear PWR steam generators, and caustic evaporator piping all demand Inconel 600. All products meet ASME Boiler and Pressure Vessel Code Sections I, III, and VIII. They have a minimum tensile strength of 550 MPa (80 ksi), a minimum yield strength of 240 MPa (35 ksi), and a minimum elongation of 30%. Pipe sizes range from NPS 1/2″ to 24″ in schedules SCH 5S through XXS. Fittings are available as seamless (1/2″–10″) and welded (1/2″–48″) in elbows, tees, reducers, caps, and stub ends.
Inconel 600 pipes and fittings are used in heat treatment and furnace systems, nuclear power plants, chemical processing (caustic soda and chlor-alkali), aerospace, oil and gas, and food processing. Each shipment includes EN 10204/3.1 mill test certificates, PMI reports, and complete traceability.
Inconel 600 Pipes & Pipe Fittings – Specifications
Below are the specifications of Inconel 600 pipes and fittings, covering the main types, sizes, and other required information.
| Pipes Specification | |
|---|---|
| Parameter | Details |
| Pipe & Tube Standards | ASTM B167, B829, B516, B517, B163 / ASME SB167, SB829, SB516, SB517, SB163 |
| Size | Pipe NPS 1/2″ to 24″; OD 3-600 mm |
| Wall / Schedule | SCH 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 160, XXS |
| Fitting Specification | |
| Parameter | Details |
| Fittings Standards | Buttweld Fittings: ASTM B366 / ASME SB366 |
| Dimensions | ASME B16.9, B16.28, MSS SP-43 |
| Size | BW Size: NPS 1/2″ to 48″ |
| Pressure Class | SCH 5S, 10S, 40S, 80S, 160, XXS |
Chemical Composition of Inconel 600 Pipe & Fittings
Shows the ASTM B167-based chemical composition of Inconel 600 pipes and fittings, listing key elements and permitted ranges.
| Material / Element | Nickel (Ni) | Chromium (Cr) | Iron (Fe) | Carbon (C) | Manganese (Mn) | Silicon (Si) | Copper (Cu) | Sulfur (S) |
|---|---|---|---|---|---|---|---|---|
| Min (%) | 72.0 | 14.0 | 6.0 | – | – | – | – | – |
| Max (%) | – | 17.0 | 10.0 | 0.15 | 1.00 | 0.50 | 0.50 | 0.015 |
The alloy contains about 72% nickel, which helps it resist reducing environments, caustic alkalis, and chloride stress corrosion cracking (SCC). Chromium at 14–17% delivers oxidation and sulfidation resistance. Unlike Hastelloy C276, Alloy 600 contains no molybdenum or tungsten and is not designed for strong acid service. Its strength lies in high-temperature oxidation, carburisation resistance, and caustic environments.
Mechanical Properties of Inconel 600 Pipes & Fittings
Mechanical performance data for Inconel 600 pipes and fittings in the annealed state, specified according to ASTM B167 requirements:
| Property | Tensile Strength (min) | Yield 0.2% Offset (min) | Elongation (min) | Hardness (typical) | Modulus of Elasticity |
|---|---|---|---|---|---|
| Value | 550 MPa (80 ksi) | 240 MPa (35 ksi) | 30% | 75–90 HRB | 214 GPa (31 × 10⁶ psi) |
Alloy 600 retains 310 MPa tensile at 538°C and 207 MPa at 760°C. No ductile-to-brittle transition at cryogenic temperatures. Cold working can raise tensile strength to 1520 MPa (220 ksi).
Inconel 600 Pipes & Pipe Fittings Equivalent Grades
Global equivalent grades and standards for Inconel 600 pipes and fittings, listing international designations corresponding to UNS N06600 alloy:
| Property | UNS | Werkstoff Nr. | EN / DIN | JIS | BS | ASME BPVC | Trade Names |
|---|---|---|---|---|---|---|---|
| Designation | N06600 | 2.4816 | NiCr15Fe / 17742, 17750–17754 | NCF 600 | 3072–3076 (NA14) | Sections I, III, VIII (Code Case 1827) | Inconel 600, Nicrofer 7216 H, Nickelvac 600, Pyromet 600 |
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Types of Inconel 600 Pipes & Pipe Fittings
Inconel 600 pipes are manufactured in multiple forms for high-temperature furnace environments and nuclear-grade water systems. Matching fittings connect, redirect, and control flow:
Inconel 600 Seamless Pipe
Inconel 600 Welded Pipe
Inconel 600 Condenser & Heat-Exchanger Tube
Inconel 600 ERW / EFW Pipe
Inconel 600 Elbow (45° / 90° / 180°)
Inconel 600 Tee (Equal / Reducing)
Inconel 600 Reducer (Concentric / Eccentric)
Inconel 600 Cap & Stub End
Industries Using Inconel 600 Pipes & Pipe Fittings
Inconel 600 pipes and fittings are used in places where the piping has to handle very high heat or harsh, corrosive chemicals.
- Heat Treatment & Furnace Industry: Retort piping, muffle and radiant tubes, roller hearth parts; resists carburisation and nitriding above 1000°C.
- Nuclear Power: Used for PWR steam generator tubes, reactor core components, control rod drive mechanisms, and pressuriser piping. It is approved under ASME BPVC Sections I, III, and VIII.
- Chemical Processing: Used in caustic soda evaporator lines, chlor-alkali plant piping, and vinyl chloride production systems. Fittings handle NaOH, KOH, and organic acids where SCC immunity is required.
- Aerospace & Gas Turbines: Used for exhaust liner piping, turbine seal piping, and airframe tubing. It stays strong and resists oxidation at temperatures where stainless steels begin to fail.
- Oil & Gas / Petrochemical: Refinery piping for caustic solutions, catalytic reformer piping, and hydrogen production tubing. NACE MR-01-75 compliant for specific sour gas environments.
- Food Processing & Pharmaceutical: Fatty acid lines, soap making, sterilisation; resists acids, survives CIP/SIP.
- Electronics & Semiconductor: Process piping for electronic component manufacturing and thermocouple protection tubes where purity and oxidation resistance are critical.
How to Order Inconel 600 Pipes & Pipe Fittings from Nicorex Alloys
To order Inconel 600 Pipes, follow these important steps:
- Product Form — Seamless Pipe / Fittings (Elbow, Tee, Reducer)
- Size — OD x WT or NPS x Schedule
- End Type — PE / BE / BW
- Material Grade — Inconel 600 / UNS N06600 / W.Nr. 2.4816
- Quantity — Pieces or total weight in kg / MT
- Standard — ASTM B167 (pipe) / ASTM B366 (fittings)
- Additional Requirements — NACE, PMI, solution annealed, IGC
- Documentation — MTC 3.1/3.2, PMI Report, TPI Certificate
- Packaging — VCI wrap, ISPM 15 compliant export crating
- Delivery — Domestic / International (specify destination)
Frequently Asked Questions
What ASTM Standard Covers Inconel 600 Seamless Pipe?
ASTM B167 / ASME SB167 covers seamless pipe and tube. ASTM B163 covers condenser/heat-exchanger tubes. Welded: B517 (pipe), B516 (tube). Fittings: B366 (buttweld WPNCI).
What is the Maximum Operating Temperature for Inconel 600 pipe fittings?
1093°C (2000°F) for continuous service. The alloy maintains useful strength and oxidation resistance throughout this range. At cryogenic temperatures, it retains full ductility without brittle failure.
Is Inconel 600 Pipe suitable for Acid Service?
Alloy 600 has moderate acid resistance and is not the first choice for concentrated acid service. Its strength lies in caustic alkalis, high-purity water, and high-temperature environments. For strong acids such as HCl, H₂SO₄, and HF, it’s better to use Hastelloy C276 or C22 rather than Inconel 600.
What is the price of Inconel 600 pipe fittings in India?
Prices vary with size, schedule, seamless or welded type, quantity, and nickel prices. Contact Nicorex Alloys for the latest price list.
Is Inconel 600 Pipe used in Nuclear Applications?
Yes. ASME BPVC approved for Sections I, III, and VIII. Standard material for PWR steam generator tubing due to high-purity water corrosion resistance and high-temperature strength.
What is the difference between ASTM B167 and ASTM B829?
ASTM B167 applies to nickel‑chromium‑iron alloys (N06600, N06601, N06690) used for seamless pipes and tubes. B829 is a more general standard that covers many nickel alloys. Both give the same product quality; B167 is specific to certain alloys, while B829 is a general specification.