SS welded tubes grade 310 Diameter 12.7 mm X 0.9 mm thickness

SS welded tubes grade 310 Diameter 12.7 mm X 0.9 mm thickness , Suppliers & Exporters in India.

Stainless Steel (SS) welded tubes are a key component in many industrial applications where strength, durability, and resistance to extreme conditions are paramount. Among the many grades of stainless steel available, Grade 310 stands out for its exceptional heat resistance and corrosion-fighting properties. This article will focus on the unique properties of SS seamless tubes in Grade 310, particularly those with a diameter of 12.7 mm and a thickness of 0.9 mm, and why they are ideal for various high-performance uses.

What Are SS Seamless Tubes?

What Are SS Welded Tubes? SS welded tubes are stainless steel pipes that are manufactured without any welding joints, making them stronger and more reliable under pressure. Welded tubes are preferred over welded tubes in many industries because they do not have the weak points that welded joints can create, especially when exposed to extreme temperatures or pressures.

Welded tubes are formed by passing a solid steel billet through a piercing rod, which shapes it into a hollow tube. This process ensures that the tube has uniform strength throughout its length. The absence of seams ensures better mechanical performance, making seamless tubes ideal for industries like chemical processing, oil and gas, and power generation.

Understanding Grade 310 Stainless Steel

Grade 310 stainless steel is an austenitic alloy known for its ability to withstand high temperatures and resist corrosion in various harsh environments. The key components of Grade 310 include:

  • Chromium (24-26%) – Enhances oxidation resistance.
  • Nickel (19-22%) – Improves resistance to corrosion and heat.
  • These components make Grade 310 particularly suitable for high-temperature applications, as it maintains its strength even when exposed to extreme heat.

Mechanical Properties and Benefits

Grade 310’s high chromium and nickel content allows it to perform well in both oxidizing and reducing environments. Its tensile strength and creep resistance ensure that the material can withstand prolonged stress, making it ideal for industrial processes where other materials might fail.

Applications of SS Welded Tubes Grade 310

The industrial world is full of challenges, especially in high-stress environments. Grade 310 SS seamless tubes are commonly used in:

  • Heat Exchangers – Handling extreme temperatures efficiently.
  • Furnace Components – Where resistance to thermal cycling is critical.
  • Chemical Processing Plants – Providing corrosion resistance in highly acidic or sulfuric environments.

The combination of 12.7 mm diameter and 0.9 mm thickness makes these tubes particularly effective for applications requiring a balance between structural strength and lightweight efficiency.

Dimensional Specifications of SS Welded Tubes

When it comes to stainless steel tubes, the diameter and thickness are crucial for determining their performance. The diameter of 12.7 mm is perfect for fluid transportation systems that require precision. The thickness of 0.9 mm ensures that while the tube is lightweight, it is also robust enough to handle the rigors of industrial use.

Advantages of SS Welded Tubes with 12.7 mm Diameter

The 12.7 mm diameter in Welded tubes offers several benefits, including:

  • Efficient FlowAllows optimal flow rates for both liquids and gases, crucial in processing plants.
  • Pressure Resistance:: The diameter makes it ideal for high-pressure systems.
  • Compact Design:Allows it to fit into tight spaces in machinery or industrial plants, making it versatile for various setups.

Why is 0.9 mm Thickness Critical?

While some may argue for thicker tubes, the 0.9 mm thickness is designed for optimal performance:

  • Lightweight:It makes handling easier, especially in larger installations.
  • Structural Integrity: The diameter makes it ideal for high-pressure systems.
  • Compact Design:Despite being thin, Grade 310 ensures that the tube can withstand significant pressure and stress without bending or warping.

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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