SS welded tubes grade Alloy 20 Diameter 21.3mm X 1.6 mm thickness

SS welded tubes grade Alloy 20 Diameter 21.3mm X 1.6 mm thickness, Suppliers & Exporters in India.

SS seamless tubes, especially those made from Alloy 20, stand out for their durability, corrosion resistance, and efficiency. Among the various dimensions available, the 21.3 mm diameter and 1.6 mm thickness tubes are particularly favoured in many industries for their adaptability and superior mechanical properties. In this comprehensive guide, we’ll delve into the features, benefits, and applications of Alloy 20 seamless tubes of these dimensions.

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Key properties of Alloy 20 include:

  • Excellent resistance to pitting and crevice corrosion in acid environments.
  • Good mechanical strength, making it ideal for high-stress applications.
  • Outstanding weldabilityensuring ease of installation in piping systems.

Specifications of SS Welded Tubes – 21.3 mm Diameter X 1.6 mm Thickness

These SS Welded tubes, with a diameter of 21.3 mm and a wall thickness of 1.6 mm, provide a perfect balance between strength and weight. Their seamless construction eliminates the risk of leaks and weak points, ensuring consistent performance in critical applications.

Key advantages of welded tubes:

  • High pressure resistance:With no welded joints, welded tubes can withstand greater pressure compared to welded counterparts.
  • Enhanced corrosion resistance: Welded tubes have uniform strength across the tube wall, offering better protection against corrosion.
  • Precision:The consistent dimensions ensure a precise fit for industrial piping systems.

Applications of Alloy 20 SS Welded Tubes

Due to its superior corrosion resistance and mechanical strength, Alloy 20 is widely used in industries that handle harsh chemicals and demanding environments. Some of the most common applications include:

  • Chemical processing: Ideal for handling sulfuric acid, phosphoric acid, and chlorides.
  • Pharmaceuticals: : Resistant to chemical corrosion, making it suitable for use in equipment that handles caustic solutions.
  • Food processing: Alloy 20 is approved for use in applications where hygiene and corrosion resistance are critical.
  • Petrochemical industries: For piping systems exposed to acidic environments, this grade is a preferred choice.

Benefits of Using Alloy 20 Welded Tubes in Critical Applications

  • Enhanced corrosion resistance: With a high nickel content, Alloy 20 provides superior protection against corrosion compared to standard stainless steels.
  • Cost efficiency: Although a specialty alloy, Alloy 20 offers long-term savings by reducing maintenance costs and extending equipment life.
  • Temperature performance: Alloy 20 can handle a wide range of temperatures, making it versatile for different environments, from low to moderately high temperatures.

Why Choose Welded Tubes with 21.3 mm Diameter and 1.6 mm Thickness?

The 21.3 mm diameter combined with the 1.6 mm wall thickness provides an ideal mix of durability and flexibility. These dimensions make the tube suitable for medium-pressure applications, while still being light enough to offer cost efficiency in terms of materials and ease of installation.

Key reasons to choose this dimension:

  • Perfect balance: Provides a balance between structural integrity and flow capacity.
  • Ease of transport and installation: : Lightweight yet durable enough for harsh conditions.
  • Versatile: Suitable for a wide range of industrial processes, from chemical handling to water treatment.

Compliance and Quality Standards for SS Welded Tubes

Welded tubes of this specification typically meet global standards such as ASTM, ASME, and DIN. Compliance with these standards ensures that the tubes offer optimal performance in terms of strength, corrosion resistance, and durability.

Common certifications include:

  • ASTM B729 – Standard for seamless alloy steel pipes.
  • ASME SB-729 – Specification for seamless pipes in chemical processing.

Final Thoughts: Investing in Alloy 20 Seamless Tubes

For industries that demand high-performance, corrosion-resistant piping solutions, Alloy 20 seamless tubes with a diameter of 21.3 mm and thickness of 1.6 mm offer the ideal solution. Their ability to withstand harsh environments, combined with their excellent mechanical properties, makes them a cost-effective and reliable option for industrial applications. Whether you are in the chemical, pharmaceutical, or food processing industry, choosing Alloy 20 ensures that your system will perform efficiently and with minimal maintenance for years to come.

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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