Alloy 20 Buttweld Pipe Fittings in seamless, ERW and welded to ASTM B 366 / ASME SB 366. Get quotes from verified suppliers on MetalMitra.
- Alloy 20 Buttweld Pipe Fittings
- Alloy 20
- Elbows
- Tees
- Reducers
- Crosses
- Stub Ends
- End Caps
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Specifications
| Standard | ASTM / ASME / ANSI |
|---|---|
| Dimensions | ASME / ANSI B16.9, B16.11, B16.28, B16.5, MSS SP-43, GB12459, GB/T13401, GB/T14383, SH3406, SH3408, SH3409 etc. |
| Specifications | ASTM B 366 / ASME SB 366 |
| Grade | Alloy 20 – UNS N08020 |
| Alloy 20 Seamless Butt Weld Fittings Size | 1/2" – 10" |
| Alloy 20 Welded Butt Weld Fittings Size | 1/2" – 48" |
| Wall Thickness | From 2 to 40 mm |
| Schedule | Sch 5 TO Sch XXS |
| Type | Seamless / ERW / Welded / Fabricated |
Grades & standards
- Alloy 20
- ASME B16.5
- ASME B16.9
- ASME B16.11
- MSS SP-43
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 Buttweld Pipe Fittings from verified mills, manufacturers and stockists on MetalMitra. Options span seamless, ERW and welded, produced to ASTM B 366 / ASME SB 366, and every order can ship with an EN 10204 3.1 certificate.
Alloy 20 Buttweld Pipe Fittings are welded pipe fittings that are bevelled and butt-welded to the pipe, creating a continuous, high-strength and leak-resistant connection with smooth internal flow.
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
- Elbows — 45°, 90° and 180° long and short radius elbows.
- Tees & Crosses — Equal and reducing tees and crosses for branching.
- Reducers — Concentric and eccentric reducers for size changes.
- Stub Ends & Caps — Long and short stub ends and pipe end caps.
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 Buttweld Pipe Fittings follow the applicable standard plus any extra requirements in your PO.
- Dimensional inspection
- Wall thickness & bevel inspection
- Visual inspection
- Grade verification against the order
- Chemical composition verification
- Mechanical testing as applicable
- Non-destructive testing as applicable
- EN 10204 3.1 Mill Test Certificate
- Third-party inspection (TPI) 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 Buttweld Pipe 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 Buttweld Pipe Fittings?
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