Alloy 20 Ferrule Fittings in imperial and metric sizes to ASTM B366 / ASME SB 366. Get quotes from verified suppliers on MetalMitra.
- Alloy 20 Ferrule Fittings
- Alloy 20
- Double Ferrule
- Compression Fittings
- Leak-Proof
- Instrumentation
- OD Tubing
Your details are never shown publicly. The MetalMitra team reviews every requirement.
Specifications
| Dimensions | DIN, ASTM, ASME, BS and all International Standards |
|---|---|
| Specifications | ASTM B366 / ASME SB 366 |
| Grade | Alloy 20 – UNS N08020 |
| Size Range | 1/8" to 2" and 2mm to 32mm tube diameter |
| Working Pressure | up to 6,000psi (based on severity of application) |
| Available Thread | NPT(ANSI B1.20.1), and ISO thread configurations (BSPT, BSPP) |
Grades & standards
- Alloy 20
Chemical composition & mechanical properties
| Ni | Cr | Mo | Cu | Nb | C | Fe |
|---|---|---|---|---|---|---|
| 32.0–38.0 | 19.0–21.0 | 2.0–3.0 | 3.0–4.0 | 8×C – 1.00 | 0.07 | balance |
Single values are maximums unless marked min. Values per ASTM B463 / B464; always confirm against the purchase specification and the mill test certificate.
Source Alloy 20 Ferrule Fittings from verified mills, manufacturers and stockists on MetalMitra. Options span imperial and metric sizes, produced to ASTM B366 / ASME SB 366, and every order can ship with an EN 10204 3.1 certificate.
Alloy 20 Ferrule Fittings are compression-type tube fittings that use front and back ferrules to grip the tube and create a reliable, leak-tight seal without welding.
Alloy 20 (UNS N08020) was developed specifically to stand up to sulphuric acid. Alloy 20 (UNS N08020) is a niobium-stabilized nickel-iron-chromium alloy with copper and molybdenum, developed for excellent resistance to sulphuric acid and other aggressive chemical environments.
What you can source
- Male & Female Connectors — Connect tubing to threaded ports and equipment.
- Unions & Reducers — Join tubes of the same or different sizes.
- Elbows, Tees & Crosses — Change direction or branch instrumentation lines.
- Caps, Plugs & Ferrules — End closures and replacement ferrule sets.
Key properties
- Sulphuric Acid Resistance — Developed specifically for sulphuric acid service.
- Stress Corrosion Resistance — Good resistance to chloride stress corrosion cracking.
- Niobium Stabilized — Reduced risk of carbide precipitation during welding.
- Good Fabricability — Forms, machines and welds without fuss.
Applications & industries
- Chemical Processing
- Sulphuric Acid Plants
- Pharmaceutical
- Petrochemical
- Pickling Equipment
- Food Processing
- Synthetic Fibre Plants
- Heat Exchangers
- Process Piping
- Storage Tanks
- Fabrication
- General Engineering
Testing & documentation
Inspection and documentation for Alloy 20 Ferrule Fittings follow the applicable standard plus any extra requirements in your PO.
- Dimensional & thread inspection
- Visual inspection
- Grade verification against the order
- Ferrule fit-up check
- Pressure / leak testing as applicable
- Positive Material Identification (PMI) as applicable
- EN 10204 3.1 Mill Test Certificate
- Project-specific documentation on request
Why source on MetalMitra
- Verified suppliers — Mills, manufacturers and stockists are reviewed by the MetalMitra team before they list.
- One RFQ, several quotes — Share size, grade and quantity once and compare offers side by side.
- Full traceability — Heat numbers, EN 10204 3.1 MTCs and third-party inspection on request.
- Delivered worldwide — Export-worthy packing and shipping to India, the Middle East, Africa, Europe and the Americas.
Request pricing
Post an RFQ for Alloy 20 Ferrule Fittings with your drawing or specification and receive quotes from verified suppliers.
Technical note: Values on this page are for reference. Always confirm against the governing standard, your purchase specification and the mill test certificate.
Applications & industries
- Chemical Processing
- Sulphuric Acid Plants
- Pharmaceutical
- Petrochemical
- Pickling Equipment
- Food Processing
- Synthetic Fibre Plants
- Heat Exchangers
- Process Piping
- Storage Tanks
- Fabrication
- General Engineering
- Petrochemical & Refining
- Chemical Processing
- Pharmaceutical
- Food & Dairy
Testing & documents
Ask for the documents you need in your requirement — suppliers confirm them in their quotation:
- Mill test certificate to EN 10204 3.1, or 3.2 with third-party witness
- Third-party inspection (TPI) by SGS, Bureau Veritas, TÜV or your nominated agency
- Tests as the standard or your order requires: hydro, PMI, IGC, NDT, hardness or impact tests
Need Alloy 20 Ferrule Fittings?
Share grade, size, quantity and delivery location. We compare suitable suppliers and come back with a clear quotation.