SS welded tubes grade Alloy 20 Diameter 8.0 mm X 1.6 mm thickness

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.

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)

Stainless Steel Pipes Dimension – (S.S. Pipes)
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
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

CHEMICAL COMPOSITION (IN PERCENTAGE)
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.

Mechanical Properties

MECHANICAL PROPERTIES
Grade Tensile Strength
Mpa, (Min)
Yield Strength
Mpa, (Min)
%Age Elongation
in 50mm gauge
length min
Hardness (Max)
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


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