SS welded tubes grade 310 Diameter 4.7mm X 0.9 mm thickness

SS Welded tubes grade 310 Diameter 4.7mm X 0.9 mm thickness , Suppliers & Exporters in India.

Rajgranth Metals is a leading ready stockholder of SS seamless tubes Grade 310 in Mumbai, India. Stainless steel (SS) welded tubes have gained immense popularity across industries, especially in high-demand sectors like petrochemical, oil and gas, and heat treatment industries. Among the various grades of stainless steel, Grade 310 stands out due to its remarkable ability to withstand high temperatures and corrosive environments. In this article, we will dive deep into the unique properties of SS welded tubes Grade 310, specifically focusing on the 4.7mm diameter and 0.9mm thickness variation.

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What Are SS welded Tubes?

Welded tubes, unlike welded tubes, are manufactured without any joints or welds, which gives them enhanced structural integrity. This makes them ideal for high-pressure environments where strength and resistance to breaking are critical. Welded tubes also have a smoother internal surface, which is beneficial in fluid transfer applications, reducing the risk of clogging and contamination.

Understanding Grade 310 in Stainless Steel

Grade 310 is a high alloy austenitic stainless steel known for its excellent oxidation resistance, especially at elevated temperatures. It contains high levels of chromium and nickel, which enhance its durability in extreme heat and corrosive environments. This makes Grade 310 seamless tubes perfect for industries where stability and longevity are key.

Key Specifications of Grade 310 Stainless Steel Tubes

When discussing the Grade 310 stainless steel tubes, it’s important to note the specific 4.7mm diameter and 0.9mm thickness. These dimensions are common in industries where precision and exact tolerance are crucial. The small diameter is often used in delicate applications, such as instrumentation and chemical processing lines, while the 0.9mm thickness ensures durability without adding unnecessary weight or volume.

Why Choose SS Seamless Tubes Over Welded Tubes?

Advantages of Seamless Tubes:

  • Structural Integrity:Seamless tubes are known for their superior strength because there are no weak spots created by welds.
  • Smooth Inner Surface:The absence of weld seams leads to a more uniform and smooth internal surface, reducing the risk of fluid contamination.
  • Pressure Resistance: Since there are no welded joints, seamless tubes handle high-pressure environments better.

Welded vs. Seamless: Key Differences:

  • Welded Tubes:can be more cost-effective but might not be able to handle the same pressure and temperature extremes as seamless tubes.
  • Seamless Tubeswhile more expensive, offer better overall durability and performance.

Chemical Composition of SS Grade 310

Grade 310 stainless steel is primarily composed of:

  • Chromium (Cr): 24–26%
  • Nickel (Ni): 19–22%
  • Carbon (C):0.08% max
  • Manganese (Mn): 2% max
  • Silicon (Si): 1.5% max

The high chromium and nickel content enhances the oxidation resistance, making it ideal for high-temperature applications. The balance between these elements ensures that the steel retains its strength even in demanding environments.

Mechanical Properties of SS Grade 310

Some key mechanical properties of Grade 310 stainless steel are:

  • Tensile Strength:520 MPa (minimum)
  • Yield Strength: 205 MPa (minimum)
  • Elongation: 40% (in 50mm) These properties indicate that Grade 310 is strong, ductile, and resilient, allowing it to handle both stress and strain without deformation

SS Seamless Tubes Manufacturing Process

The manufacturing of SS seamless tubes involves several steps, including cold drawing, heat treatment, and quality inspection. The cold drawing process refines the tube’s dimensions, and heat treatment ensures that the tubes retain their strength and durability. Finally, surface finishing polishes the product, ensuring a high-quality exterior.

Tolerance Standards for Diameter 4.7mm X 0.9mm Thickness

Precision is key when manufacturing seamless tubes. Tolerance standards, such as ASTM A213 and ASME SA213, ensure that the 4.7mm diameter and 0.9mm thickness fall within acceptable deviations, allowing the tubes to be used in precision applications without performance issues.

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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