SS welded pipes grade 316 Diameter 22 mm X Sch 10

SS welded pipes grade 316 Diameter 22 mm X Sch 10 , Suppliers & Exporters in India.

Stainless steel (SS) welded pipes are a cornerstone of various industrial applications due to their exceptional strength, corrosion resistance, and durability. Among the many available grades, Grade 316 stainless steel stands out for its superior performance in harsh environments, particularly in industries exposed to chemicals, seawater, and extreme temperatures. This article focuses on SS seamless welded pipes, Grade 316, with a specific emphasis on those with a 22 mm diameter and Schedule 10 (Sch 10) wall thickness.

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Key Features of SS Welded Pipes (Grade 316)

  • Corrosion Resistance:o Grade 316 stainless steel contains molybdenum (Mo), which provides enhanced resistance to pitting and crevice corrosion in chloride environments. This makes it an ideal material for applications in marine environments, chemical processing plants, and even in environments with high salinity or exposure to brine.
  • Durability:The seamless construction of these pipes eliminates any welded seam, which is often a weak point in welded pipes. This construction method enhances the overall durability, ensuring the pipe can withstand high pressure and stress without compromising its structural integrity.
  • High-Temperature Tolerance:o SS 316 seamless welded pipes are capable of withstanding temperatures up to 800°C. This makes them ideal for high-temperature applications, including boiler systems, heat exchangers, and certain chemical processing environments.
  • Chemical Resistance: The addition of molybdenum gives 316 stainless steel greater resistance to acids, alkalis, and other chemical solutions, expanding its usability in pharmaceutical, food processing, and petrochemical industries.

Understanding the Specifications: Diameter 22 mm X Sch 10

  • Diameter: 22 mmThe outer diameter (OD) of 22 mm makes these pipes suitable for applications requiring small to medium-sized piping solutions. They are often used in precision industries where space and flow control are critical.
  • Schedule 10 Wall ThicknessSch 10 refers to a standardized thickness of the pipe walls. In this case, the wall thickness is relatively light, which is ideal for applications requiring lower pressure tolerance. Sch 10 pipes are often used in low-pressure systems, including ventilation, drainage, and low-pressure water transportation.

Applications of Grade 316 SS Pipes (22 mm X Sch 10)

  • Marine Applications:The resistance to corrosion from seawater makes these pipes perfect for shipbuilding, offshore platforms, and marine hardware systems. The Sch 10 thin-walled construction ensures that the pipes are lightweight yet strong enough to handle the demanding conditions of saltwater environments.
  • Chemical Processing:o Grade 316’s exceptional resistance to corrosive chemicals makes it a preferred choice for transporting fluids in chemical processing plants. The seamless construction ensures no weak points, making it ideal for industries handling aggressive chemicals, acids, and gases.
  • Food & Beverage Industry:o In food processing, maintaining hygiene and preventing contamination is critical. SS 316 seamless pipes are used due to their resistance to corrosion and ease of cleaning. Their high durability ensures a long lifecycle even under constant exposure to high-temperature steam and caustic cleaning agents.
  • Pharmaceutical Industry:o These pipes are frequently used in the pharmaceutical sector to transport fluids and gases under controlled conditions. The molybdenum content ensures the pipes can withstand the harsh cleaning chemicals and sterilization processes used in this industry.
  • Oil & Gas Pipelines:o SS 316 seamless welded pipes, especially with Sch 10, find use in the oil and gas industry for transporting petroleum products, natural gas, and other chemical fluids in low-pressure environments. Their resistance to corrosion ensures a longer lifespan even when exposed to harsh environments.

Advantages of Seamless Pipes over Welded Pipes

  • No Welded Seams:One of the key benefits of seamless pipes is the absence of welded seams, which are prone to corrosion and failure under high pressure or stress. Seamless pipes provide a uniform structure, ensuring better performance in demanding applications.
  • Strength and Reliability:Seamless pipes are known for their uniformity in structure, which allows them to withstand higher pressures, making them preferable for critical applications in high-pressure systems.
  • Higher Corrosion Resistance:The seamless manufacturing process often leads to a pipe that is more resistant to corrosion and oxidation, particularly in environments with fluctuating temperatures or aggressive chemicals.

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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