The item
Alloy 20 welded Tubes with an outside diameter of 8 mm and a wall thickness of 1.6 mm. Nickel-iron-chromium with copper and niobium. Developed for sulphuric acid.
Alloy 20 Welded TubesIn stock
Alloy 20 welded tubes
OD 8 mm × 1.6 mm wall
This is a size we hold rather than one we have to roll. Nickel-iron-chromium with copper and niobium. Developed for sulphuric acid. Supplied with a mill test certificate to EN 10204 3.1 as standard.
OD 8 mm × 1.6 mm wallUNS N08020EN 2.4660HSN 7306
Properties
Super Austenitic- PREN
- 30
- Relative cost
- 4.00×
- Max service temp
- 500 °C
- Magnetic
- No
- Weldability
- Good
- Machinability
- Difficult
Pitting resistance equivalent. Higher resists chlorides better.
Indexed to 304. Indicative, for specification triage.
01Product description
Alloy 20 stainless steel welded Tubes, OD 8 mm × 1.6 mm wall: stockist and supplier in Mumbai
Rajgranth Metal & Alloys stocks and supplies Alloy 20 welded Tubes, OD 8 mm × 1.6 mm wall from Mumbai, with the material, tests and documentation covered by our ISO 9001:2015 quality system. Rajgranth Metal & Alloys has been trading since 1980, is self-funded and debt-free, and despatches most orders from its Mumbai stockyard within two days.
Grade and designations
Alloy 20 (Carpenter 20), designated UNS N08020, EN 2.4660, AISI Alloy 20 and Werkstoff NiCr20CuMo.
Standards and finishes
Standards include ASTM A213 / ASME SA-213, ASTM A269, ASTM A312 / ASME SA-312, ASTM A376 / ASME SA-376, ASTM A789 / ASME SA-789, ASTM A790 / ASME SA-790, ASTM A268 / ASME SA-268 and ASTM A511. Finishes and conditions include Bright Annealed (CFA), Solution Annealed (CFD), Electro Polished (EP), Polished (APP), Annealed and Pickled (AP), Mirror Polish, Matt Polish and Cold Drawn.
Where it is used
sulphuric acid pumps, valves and piping, pickling equipment, pharmaceutical process vessels and fertiliser and chemical plant. We supply across India and export to markets in the Middle East, Africa, Europe, Asia, North America and South America.
Ordering
Send the quantity, standard and any special requirement and we will confirm availability. Material is supplied with documentation, tested in house across 18 listed testing facilities, and covered by our ISO 9001:2015 quality management system.
Also searched as
- alloy 20 welded Tubes, OD 8 mm × 1.6 mm wall supplier
- Alloy 20 8 mm welded Tubes stockist in Mumbai
- stainless Steel Welded Tubes 8 mm
This size
07 rows- Grade
- Alloy 20
- Product
- Welded Tubes
- Outside diameter
- 8 mm
- Wall thickness
- 1.6 mm
- Length
- 5 m6.5 m
Cut to length on request
- Ends
- PlainBevelled
- Certification
- EN 10204 3.1
3.2 with third-party inspection on request
Other sizes in this grade are supplied to order — usually from stock.
Surface finishes
08- Bright Annealed (CFA)
- Solution Annealed (CFD)
- Electro Polished (EP)
- Polished (APP)
- Annealed and Pickled (AP)
- Mirror Polish
- Matt Polish
- Cold Drawn
Standards
10- ASTM A213 / ASME SA-213
- ASTM A269
- ASTM A312 / ASME SA-312
- ASTM A376 / ASME SA-376
- ASTM A789 / ASME SA-789
- ASTM A790 / ASME SA-790
- ASTM A268 / ASME SA-268
- ASTM A511
- ASTM B163 / ASME SB-163
- ASTM B407 / ASME SB-407
01Also held
Other Alloy 20 welded tubes sizes
Complete technical reference
SS welded tubes grade Alloy 20 Diameter 8.0 mm X 1.6 mm thickness
The full detail for this product as supplied from our Mumbai stockyard: sizes, grades, standards, tolerances, tests and applications.
SS welded tubes grade Alloy 20 Diameter 8.0 mm X 1.6 mm thickness, Suppliers & Exporters in India.
SS Welded Tubes made from Alloy 20 stand out as a top choice. With a diameter of 8.0 mm and a thickness of 1.6 mm, these tubes are widely used in a variety of demanding applications. SS seamless tubes made from Alloy 20 with a diameter of 8.0 mm and thickness of 1.6 mm are an ideal solution for industries that demand both high corrosion resistance and durability. Whether you’re working in chemical processing, pharmaceuticals, or any industry where strong acids and corrosive environments are prevalent, Alloy 20 seamless tubes provide the reliability and longevity you need.
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What is Alloy 20?
Alloy 20, also known as Carpenter 20 or Nickel-Iron-Chromium Alloy, is a highly corrosion-resistant metal specifically designed to combat acid attacks, particularly sulfuric acid. It is a nickel-based alloy that contains a small percentage of copper and molybdenum for added resistance to pitting and crevice corrosion. It also offers protection against stress-corrosion cracking, which makes it perfect for a variety of aggressive environments.
Key Elements of Alloy 20 Composition:
- Nickel (32-38%)
- Chromium (19-21%)
- Molybdenum (2-3%)
- Copper (3-4%)
Why Choose SS Welded Tubes in Alloy 20?
- Excellent Corrosion Resistance: Alloy 20 exhibits outstanding resistance to acidic environments such as sulfuric acid,chloride-induced pitting, and crevice corrosion. It is suitable for environments where stainless steel grades might fail.
- Durability and Strength: The seamless nature of these tubes ensures that there are no welded joints, which could become weak points. The homogeneity of seamless tubes gives them higher mechanical strength and uniformity.
- High Versatility: Alloy 20 seamless tubes are commonly used across a wide spectrum of industries such as chemical processing, pharmaceuticals, food processing, and power generation. Its versatility also makes it ideal for applications where both strength and corrosion resistance are crucial.
- Enhanced Machinability: This alloy can be easily formed into various shapes and dimensions, ensuring that it can meet specific industry standards and client specifications. The 8.0 mm diameter and 1.6 mm thickness combination is particularly popular for both flow control systems and heat exchangers.
Applications of SS Welded Tubes in Alloy 20
- Chemical and Petrochemical Plants: Due to their ability to resist acidic corrosion, Alloy 20 tubes are frequently used in equipment that processes sulfuric acid, nitric acid, phosphoric acid, and chlorides.
- Heat Exchangers: The specific dimensions of 8.0 mm x 1.6 mm make these tubes perfect for use in heat exchangers and condensers, where precision and uniformity are critical.
- Food and Beverage Industry: Their corrosion resistance makes Alloy 20 tubes safe for use in the handling of liquids that may otherwise cause pitting and contamination, making them ideal for beverage transport and food processing.
- Pharmaceuticals and Fine Chemicals: The seamless construction combined with the high corrosion resistance of Alloy 20 ensures there is no contamination, making these tubes crucial for sterile environments.
Technical Specifications for SS Welded Tubes Grade Alloy 20
- Grade:Alloy 20 (UNS N08020)
- Diameter: 8.0 mm
- Wall Thickness:1.6 mm
- Standard: ASTM B729 / ASME SB729
- Form:Seamless
- Condition: Annealed or as required by customer specifications
- Tensile Strength: Minimum 550 MPa
- Yield Strength: Minimum 240 MPa
- Elongation: 30% or higher
Benefits of Choosing Alloy 20 Tubes with 8.0 mm Diameter and 1.6 mm Thickness
- Optimal Flow Rate: This specific size is ideal for systems requiring smooth fluid flow without the risk of leaks or deformation, ensuring longevity in pipelines or processing systems.
- Compact and Efficient: The 8.0 mm diameter allows these tubes to be used in compact spaces while still providing sufficient strength and performance in high-stress applications.
- Cost-Effective in Harsh Environments:The combination of mechanical strength and corrosion resistance ensures reduced maintenance costs and longer service life, making it a highly cost-effective choice over time.
Stainless Steel Pipes Dimension – (S.S. Pipes)
19 entries
| Stainless Steel Pipes Dimension – (S.S. Pipes) | 13 | 1 | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wall thickness in mm. | 0.5 | 0.6 | 0.7 | 0.8 | 1 | 1.2 | 1.6 | 2 | 2.6 | 3 | 3.2 | 3.6 |
| O.D. in mm. | Weight in kg/meter | 12 | 1 | |||||||||
| 6 | 0.069 | 0.081 | 0.093 | 0.104 | 0.125 | 0.144 | 0.176 | – | – | – | – | – |
| 9.52 | 0.112 | 0.134 | 0.154 | 0.174 | 0.213 | 0.249 | 0.317 | – | – | – | – | – |
| 10 | 0.119 | 0.141 | 0.163 | 0.184 | 0.225 | 0.264 | 0.336 | – | – | – | – | – |
| 12.7 | 0.153 | 0.182 | 0.21 | 0.238 | 0.293 | 0.345 | 0.444 | – | – | – | – | – |
| 14 | 0.169 | 0.201 | 0.233 | 0.264 | 0.325 | 0.384 | 0.496 | – | – | – | – | – |
| 15.87 | 0.192 | 0.229 | 0.266 | 0.301 | 0.372 | 0.44 | 0.571 | 0.694 | – | – | – | – |
| 19 | 0.231 | 0.276 | 0.32 | 0.364 | 0.45 | 0.534 | 0.696 | 0.85 | 1.066 | 1.2 | 1.264 | – |
| 25 | 0.306 | 0.366 | 0.425 | 0.484 | 0.6 | 0.714 | 0.936 | 1.15 | 1.456 | 1.65 | 1.744 | 1.926 |
| 25.4 | 0.311 | 0.372 | 0.432 | 0.492 | 0.61 | 0.726 | 0.952 | 1.17 | 1.482 | 1.68 | 1.776 | 1.962 |
| 31.8 | – | – | – | – | – | 0.918 | 1.208 | 1.49 | 1.898 | 2.16 | 2.288 | 2.538 |
| 38 | – | – | – | – | – | 1.104 | 1.456 | 1.8 | 2.301 | 2.625 | 2.784 | 3.096 |
| 44.5 | – | – | – | – | – | 1.299 | 1.716 | 2.125 | 2.724 | 3.113 | 3.304 | 3.681 |
| 50.8 | – | – | – | – | – | 1.488 | 1.968 | 2.44 | 3.133 | 3.585 | 3.808 | 4.248 |
| 63.5 | – | – | – | – | – | – | 2.476 | 3.075 | 3.959 | 4.538 | 4.824 | 5.391 |
| 76.1 | – | – | – | – | – | – | 2.98 | 3.705 | 4.778 | 5.483 | 5.832 | 6.525 |
| 101.6 | – | – | – | – | – | – | 4 | 4.98 | 6 | 7 | 7,872 | 8.82 |
Chemical Composition
22 entries
| CHEMICAL COMPOSITION (IN PERCENTAGE) | 11 | 1 | ||||||||
| Grade | C (Max) | Mn (Max) | P (Max) | S (Max) | Si (Max) | Cr | Ni | Mo | Nitrogen (Max) | Cu/ Others |
| 301 | 0.15 | 2 | 0.045 | 0.03 | 1 | 16.00 – 18.00 | 6.00 – 8.00 | – | 0.1 | – |
| 304 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 8.00- 10.50 | – | 0.1 | – |
| 304L | 0.03 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 8.00- 12.00 | – | 0.1 | – |
| 310S | 0.08 | 2 | 0.045 | 0.03 | 1.5 | 24.00- 26.00 | 19.00 – 22.00 | – | – | – |
| 316 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 16.00 – 18.00 | 10.00 – 14.00 | 2.00 – 3.00 | 0.1 | – |
| 316L | 0.03 | 2 | 0.045 | 0.03 | 0.75 | 16.00 – 18.00 | 10.00 – 14.00 | 2.00 – 3.00 | 0.1 | – |
| 317 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 11.00 – 14.00 | 3.00 – 4.00 | 0.1 | – |
| 317L | 0.03 | 2 | 0.045 | 0.03 | 0.75 | 18.00 – 20.00 | 11.00 – 15.00 | 3.00 – 4.00 | 0.1 | – |
| 321 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 17.00 – 19.00 | 9.00 – 12.00 | – | 0.1 | Ti5 ( C + N ) Min or 0.70 max |
| 347 | 0.08 | 2 | 0.045 | 0.03 | 0.75 | 17.00 – 19.00 | 9.00 – 13.00 | – | – | Cb= 10x ( C Min ) or 1.00 Max |
| 409 | 0.08 | 1 | 0.04 | 0.01 | 1 | 10.50 – 11.75 | 0.5 | – | – | Ti= 6x (C+ N ) Min or 0.70 Max |
| 409M | 0.03 | 0.81.2 | 0.03 | 0.03 | 0.40.75 | 11.00- 12.00 | 1.5 max. | – | – | Ti= 6x (C) Min or 0.70 Max |
| 410S | 0.08 | 1 | 0.04 | 0.03 | 1 | 11.50- 13.50 | 0.6 | – | – | – |
| 410 | 0.15 | 1 | 0.04 | 0.03 | 1 | 11.50- 13.50 | 0.75 | – | – | – |
| 420 | 0.35 | 0.5 | 0.035 | 0.015 | 0.5 | 12.00 – 13.00 | 0.20.3 | – | – | – |
| 430 | 0.12 | 1 | 0.04 | 0.03 | 1 | 16.00 – 18.00 | 0.75 | – | – | – |
| JSL AUS | 0.08 | 7.08.0 | 0.07 | 0.03 | 0.75 | 15.50 – 16.50 | 4.25 – 4.75 | – | – | 0.9 – 1.10 |
| JS- 203 | 0.08 | 9.2510.25 | 0.07 | 0.03 | 0.75 | 14.25 – 15.25 | 2.25 – 2.75 | – | – | 1.60- 2.0 |
| 301M | 0.1 | 4.55.5 | 0.06 | 0.03 | 0.75 | 14.50 – 15.50 | 6.0 – 7.0 | – | – | 1.70- 1.90 |
| * Thickness of 1.27mm & below will have elongation of 20% min. | 11 | 1 |
|---|
Mechanical Properties
22 entries
| MECHANICAL PROPERTIES | 6 | 1 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grade | 1 | 2 | Tensile Strength Mpa, (Min) | 1 | 2 | Yield Strength Mpa, (Min) | 1 | 2 | %Age Elongation in 50mm gauge length min | 1 | 2 | Hardness (Max) | 2 | 1 |
| BHN | Rb | |||||||||||||
| 301 | 515 | 205 | 40 | 217 | 95 | |||||||||
| 304 | 515 | 205 | 40 | 201 | 92 | |||||||||
| 304L | 485 | 170 | 40 | 201 | 92 | |||||||||
| 310S | 515 | 205 | 40 | 217 | 95 | |||||||||
| 316 | 515 | 205 | 40 | 217 | 95 | |||||||||
| 316L | 485 | 170 | 40 | 217 | 95 | |||||||||
| 317 | 515 | 205 | 35 | 217 | 95 | |||||||||
| 317L | 515 | 205 | 40 | 217 | 95 | |||||||||
| 321 | 515 | 205 | 40 | 217 | 95 | |||||||||
| 347 | 515 | 205 | 40 | 201 | 92 | |||||||||
| 409 | 380 | 170 | 20 | 179 | 88 | |||||||||
| 409M | 430 | 275 | 20 | 187 | 90 | |||||||||
| 410S | 415 | 205 | 22 | 183 | 89 | |||||||||
| 410 | 450 | 205 | 20 | 217 | 89 | |||||||||
| 420 | 700( max ) | – | 15 | 217 | 95 | |||||||||
| 430 | 450 | 205 | 22 | 183 | 89 | |||||||||
| JSL AUS | 515 | 205 | 40 | 217 | 95 | |||||||||
| JS- 203 | 515 | 205 | 40 | 217 | 95 | |||||||||
| 301M | 515 | 205 | 40 | 217 | 95 |
Alloy 20 applications
04- Sulphuric acid pumps, valves and piping
- Pickling equipment
- Pharmaceutical process vessels
- Fertiliser and chemical plant
Industries
04Alloy 20 welded tubes, OD 8 mm × 1.6 mm wall.
Tell us the quantity and where it is going. We will confirm stock and come back with price the same working day.