Alloy 20 Supplier in Vadodara
A nickel-iron-chromium alloy developed for sulphuric acid, with good resistance to chloride stress-corrosion cracking. Sheet, plate, bar, pipe and flanges — delivered all over India.
Last updated:
What is Alloy 20?
Alloy 20 (Carpenter 20 / 20Cb-3, UNS N08020, W.Nr. 2.4660) is a nickel alloy containing 32.0–38.0% nickel, 19.0–21.0% chromium and 3.0–4.0% copper. A nickel-iron-chromium alloy developed for sulphuric acid, with good resistance to chloride stress-corrosion cracking. It has a density of 8.08 g/cm³ and a minimum tensile strength of 551 MPa, and is used mainly for sulphuric acid plants, pickling tanks and racks and chemical and pharma process equipment.
- Also known as Carpenter 20 / 20Cb-3
- Designations UNS N08020 · W.Nr. 2.4660 · DIN NiCr20CuMo
- Type Nickel-iron-chromium alloy
- Density 8.08 g/cm³
- Strength (min) 551 MPa tensile · 241 MPa yield
- Main uses Sulphuric acid plants, pickling tanks and racks, chemical and pharma process equipment
We supply Alloy 20 as sheet, plate, coil / strip, round bar, pipe, tube, flanges, wire, with mill test certificates, from our stock point at GIDC Makarpura, Vadodara.
What is the chemical composition of Alloy 20?
| Ni | Cr | Cu | Mo | Nb | Fe | C | Mn |
|---|---|---|---|---|---|---|---|
| 32.0 – 38.0 | 19.0 – 21.0 | 3.0 – 4.0 | 2.0 – 3.0 | 8×C – 1.00 | Balance | 0.07 max | 2.0 max |
What are the mechanical properties of Alloy 20?
| Tensile strength (min) | 551 MPa |
|---|---|
| Yield strength 0.2% (min) | 241 MPa |
| Elongation (min) | 30% |
| Condition | Annealed plate (ASTM B463) |
| Density | 8.08 g/cm³ |
What is the equivalent of Alloy 20?
| Trade name | Generic | UNS | Werkstoff Nr. | DIN |
|---|---|---|---|---|
| Alloy 20 | Carpenter 20 / 20Cb-3 | N08020 | 2.4660 | NiCr20CuMo |
Specifications by product form
| Alloy 20 sheet / plate | ASTM B463 |
|---|---|
| Alloy 20 bar | ASTM B473 |
| Alloy 20 pipe / tube | ASTM B464, B468, B729 |
| Alloy 20 forgings / flanges | ASTM B462 |
Where is Alloy 20 used?
- Sulphuric acid plants
- Pickling tanks and racks
- Chemical and pharma process equipment
- Synthetic rubber and plastics plants
- Mixing tanks and pumps
Our advice
Alloy 20 bridges the gap between 316L and the higher nickel alloys for sulphuric acid service.
Typical specification values for guidance only — always refer to the mill test certificate. Trade names are trademarks of their owners.
Alloy 20 — FAQs
Where can I buy Alloy 20 in Vadodara?
Sagar Sales Corporation (Steel Mall®), GIDC Makarpura, Vadodara, supplies Alloy 20 sheet, plate, round bar, pipe and flanges with mill test certificates, and delivers all over India. Call +91 70162 29319 or send your size on WhatsApp for today's price.
What is the chemical composition of Alloy 20?
Alloy 20 (UNS N08020) typically contains 32.0–38.0% nickel, 19.0–21.0% chromium, 3.0–4.0% copper, 2.0–3.0% molybdenum, 8×C–1.00% niobium, the balance iron, up to 0.07% carbon and up to 2.0% manganese.
What is the equivalent of Alloy 20?
Alloy 20 is also known as Carpenter 20 / 20Cb-3. Its designations are UNS N08020, Werkstoff Nr. 2.4660 and DIN NiCr20CuMo.
What is the density of Alloy 20?
The density of Alloy 20 is about 8.08 g/cm³ (8080 kg/m³). A 1 × 2 m sheet, 1 mm thick, weighs about 16.2 kg.
What is the price of Alloy 20 per kg?
Alloy 20 is priced per kg and depends on the form (sheet, bar or pipe), size, quantity and the nickel market on the day. Send us your size and quantity for a same-day quote.
Get today's Alloy 20 rate
Tell us the grade, size, finish and quantity. We check stock and send a per-kg rate with dispatch date — usually the same working day.
- Rates direct from Vadodara stock
- Mill test certificate with every lot
- Cut-to-size and delivery all over India