The item
Alloy 20 welded Tubes with an outside diameter of 9.5 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 9.5 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 9.5 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 9.5 mm × 1.6 mm wall: stockist and supplier in Mumbai
Rajgranth Metal & Alloys stocks and supplies Alloy 20 welded Tubes, OD 9.5 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 9.5 mm × 1.6 mm wall supplier
- Alloy 20 9.5 mm welded Tubes stockist in Mumbai
- stainless Steel Welded Tubes 9.5 mm
This size
07 rows- Grade
- Alloy 20
- Product
- Welded Tubes
- Outside diameter
- 9.5 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 9.5 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 9.5 mm X 1.6 mm thickness, Suppliers & Exporters in India.
Alloy 20 is a highly corrosion-resistant material, making it an excellent choice for manufacturing stainless steel (SS) welded tubes. Known for its ability to withstand harsh chemical environments, Alloy 20 is specifically designed to resist acids like sulfuric acid, making it a preferred option for industries such as chemical processing, petrochemicals, and pharmaceuticals.
Alloy 20 is a highly corrosion-resistant material, making it an excellent choice for manufacturing stainless steel (SS) welded tubes. Known for its ability to withstand harsh chemical environments, Alloy 20 is specifically designed to resist acids like sulfuric acid, making it a preferred option for industries such as chemical processing, petrochemicals, and pharmaceuticals. When combined with precision specifications such as Diameter: 9.5 mm and Thickness: 1.6 mm, these seamless tubes offer reliability in demanding industrial applications.
Get A Quote NOW
What Are Welded Tubes?
Unlike welded tubes, welded tubes are formed by extruding a solid round steel billet into a hollow tube without any welding. This results in a smooth surface finish and better mechanical properties, as there are no seams that may become weak points under high pressure or corrosive conditions.
Key Features of SS welded Tubes in Alloy 20
- Exceptional Corrosion Resistance: Alloy 20 is known for its superior resistance to sulfuric acid and various aggressive chemicals, which is essential for industries that deal with corrosive substances.
- Superior Strength: Alloy 20 offers excellent mechanical properties, including high tensile strength, which makes the tubes resistant to cracking and deformation, even under extreme pressure.
- Dimensional Precision: The specification of 9.5 mm diameter and 1.6 mm wall thickness ensures that these seamless tubes offer perfect dimensional accuracy, which is crucial for precise industrial applications.
- High Temperature Tolerance: The alloy can withstand elevated temperatures, making it suitable for operations where extreme heat is a concern.
Applications of SS Welded Tubes Grade Alloy 20
Thanks to the unique properties of Alloy 20, these seamless tubes (9.5 mm diameter x 1.6 mm thickness) are widely used in:
- Chemical and Petrochemical Industries: Alloy 20's resistance to acidic environments, particularly sulfuric acid, makes it indispensable in chemical processing plants, where tubes are exposed to aggressive chemicals.
- Food and Pharmaceutical Industry: Alloy 20 is compliant with various food safety standards due to its non-reactive properties and resistance to corrosion. It's commonly used in equipment and piping systems that require high levels of cleanliness and purity.
- Marine Applications: The excellent corrosion resistance of Alloy 20 also makes it suitable for marine environments, where exposure to seawater and harsh weather conditions is a constant challenge.
- Nuclear and Energy Sectors: The strength and corrosion resistance of Alloy 20 makes it a reliable material for applications in energy and nuclear plants, especially in heat exchangers and reactors.
Technical Specifications for Alloy 20 Welded Tubes
- Grade: Alloy 20 (UNS N08020)
- Diameter:9.5 mm
- Wall Thickness: 1.6 mm
- Standards:ASTM B729, ASME SB729, DIN, and other industry-specific standards
- Finish: Bright annealed, pickled, or as specified by the customer
- Length:Customizable based on project requirements (available in fixed or random lengths)
Benefits of Using SS Seamless Tubes Made from Alloy 20
- Durability in Harsh Conditions: Designed to endure aggressive environments, Alloy 20 tubes can last longer compared to traditional stainless steels like 304 or 316 in acid-heavy environments.
- Leak-Proof Design: The seamless construction eliminates weak spots, ensuring a leak-proof and high-strength performance under high-pressure conditions.
- Low Maintenance:Due to their high resistance to corrosion, these tubes require minimal maintenance, saving costs in the long run.
Frequently Asked Questions (FAQs)
What makes Alloy 20 better than 316 stainless steels?
Alloy 20 provides superior resistance to sulfuric acid and other corrosive chemicals compared to 316 stainless steels. This makes it ideal for applications that involve exposure to harsh chemicals, which would otherwise corrode standard grades.
Can Alloy 20 seamless tubes handle high-pressure environments?
Yes, the seamless design of the tubes, combined with the strength of Alloy 20, allows them to withstand high-pressure environments without deformation or cracking.
What is the maximum temperature these tubes can endure?
Alloy 20 seamless tubes can operate effectively at temperatures up to 500°C, depending on the specific environment and conditions.
Are custom sizes available for SS seamless tubes in Alloy 20?
Yes, manufacturers can often customize the tube dimensions to meet specific project requirements. Common variations include different diameters, wall thicknesses, and lengths.
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 9.5 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.