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What is 316 Stainless Steel Tube?
316 stainless steel tube it is used for various applications. This austenitic grade comes second to the SS 304 grade in terms of commercial importance. The ASTM A213 TP316 material has a mid-range level of carbon, and its alloy also contains 2-3% molybdenum.
Due to the chemical composition, the SA 213 TP316 tubes show increased resistance to corrosion, high temperatures, and acidic elements.tubotech is one of the largest 316 stainless steel tube manufacturer in india
What is Smooth Bore Seamless 316 Stainless Steel Tubing
Advantages of using Stainless Steel 316 Tubes in Dairy Industry
The 316 Stainless Steel Tubing providers advocate Stainless Steel 316 Tubes in Dairy Industry as:
Table of Contents
SS 316 Tube Specification
316 Stainless Steel Welded Tube Size
UNS S31600 Seamless Tube Sizes
Stainless Steel 316 Capillary Tube Dimensions
ASTM A213 TP316 Coil Tube Sizes
SS 316 Tube Form
316 Stainless Steel Tubing Standards
AISI 316 Rectangular Tube End
SUS 316 Seamless Tubing Shape
INOX 316 Square Tube Method
316 SS Tubing Test Certificates
316 SS Tubing Temperature Rating
SS 316 Rectangular Tube Finish
SA 213 TP316 Tubes Applications
316 SS Tubing Stock Length
3 top reasons to buy from 316 Stainless Steel Tube manufacturer instead of a supplier
Always buy from a SS 316 Seamless Tube manufacturer in India and not a supplier of the same because:
Difference between ASTM A554 TP316 Square & Rectangular Tubes
The number one difference between ASTM A554 TP316 Square Tube and rectangular tube is their cross-segment. The square tubes are generally used in construction, shipbuilding, structural engineering, and so forth. The 316 Stainless Steel Rectangular Tube is frequently used for fluid transportation.
Types of ASME SA213 TP316 Tubing
SA 213 TP 316 round tube
Polished 316 stainless steel tubing
316 stainless electropolish tube
1.4401 annealed tubes
SS 316 seamless tube
ASTM A554 TP316 welded tube
316 Stainless steel square tubing
AISI 316 mechanical tubing
SA 213 TP 316 rectangular tube
316 Stainless steel annealed tubes
ASTM A213 TP316 round tube
SA 213 TP316 welded tubing
An easy way to recognize for buyer if the tubing material stainless steel is 316 or not?
An easy way of determining whether the given tube is SS 316 Welded Tube or not is through the Inox test. After the test, if a yellow stain is noticed on the surface of the AISI 316 Tube, a chemical reagent is applied.
If this modifications the color of the stain from yellow to pink, then it's miles decided that the tube is 316 Stainless Steel Square Tube. It takes place due to the presence of molybdenum within the alloy.
Price List of SS 316 Round Tube
| Size | Price in USD | Price in South Africa | Price in Oman |
|---|---|---|---|
| 0.25" OD x 0.095" Wall x 0.06" ID | $1.82 | ZAR 34.21 | OMR 0.70 |
| 0.25" OD x 0.035" Wall x 0.18" ID | $3.74 | ZAR 70.29 | OMR 1.44 |
| 0.25" OD x 0.028" Wall x 0.194" ID | $4.27 | ZAR 80.26 | OMR 1.64 |
| 0.25" OD x 0.049" Wall x 0.152" ID | $4.90 | ZAR 92.10 | OMR 1.88 |
| 0.375" OD x 0.035" Wall x 0.305" ID | $4.96 | ZAR 93.22 | OMR 1.91 |
| 0.3125" OD x 0.02" Wall x 0.2725" ID | $5.04 | ZAR 94.73 | OMR 1.94 |
| 0.25" OD x 0.065" Wall x 0.12" ID | $5.33 | ZAR 100.18 | OMR 2.05 |
| 0.5" OD x 0.035" Wall x 0.43" ID | $5.59 | ZAR 105.07 | OMR 2.15 |
| 0.1875" OD x 0.035" Wall x 0.1175" ID | $5.64 | ZAR 106.01 | OMR 2.17 |
| 0.125" OD x 0.028" Wall x 0.069" ID | $5.69 | ZAR 106.95 | OMR 2.19 |
Difference Between Mill Finish & 316 Polished Stainless Tubing
The mill end 316 Stainless Steel Round Tube has a totally dull grey finish, and it isn't always taken into consideration to be commercially aesthetic. It is a consistent dull finish on the A side of the 316 Stainless Steel Square Tubing material. It has very few (if any) surface imperfections.
The SS 316 Electropolished Tubing solutions come with better corrosion resisting properties than a badly polished surface. These tubes are primarily used in various aggressive environments in nuclear and offshore industries. For optimal performance of polished 316 Stainless Steel Square Tubing, they should be maintained and cleaned properly.
Stainless Steel 316 Tube Weight Chart
| Outer Dia | Weight per | Wall |
|---|---|---|
| (Inch) | metre (kilogram) | (milimeter) |
| 1/2 | 0.42 | 1.50 |
| 5/8 | 0.44 | 1.20 |
| 5/8 | 0.54 | 1.50 |
| 3/4 | 0.53 | 1.20 |
| 3/4 | 0.66 | 1.50 |
| 7/8 | 0.63 | 1.20 |
| 7/8 | 1.01 | 2.00 |
| 1 | 0.73 | 1.20 |
| 1 | 0.90 | 1.50 |
| 1 | 1.17 | 2.00 |
| 1 1/4 | 1.13 | 1.50 |
| 1 1/2 | 1.38 | 1.50 |
| 1 1/2 | 2.64 | 3.00 |
| 50 | 2.99 | 2.50 |
| 50 | 3.55 | 3.00 |
| 2 | 1.49 | 1.20 |
| 2 | 1.85 | 1.50 |
| 2 | 2.40 | 2.00 |
| 2 | 7.43 | 3.00 |
| 2 1/2 | 2.34 | 1.50 |
| 3 | 2.81 | 1.50 |
| 3 | 5.52 | 3.00 |
| 4 | 7.42 | 3.00 |
ASTM A213 Grade 316 Seamless Tubing Chemical Composition
316 Stainless Steel
SA 213 Gr 316 Tube Mechanical Properties
| GRADES | ELONG (% IN 50MM) MIN | TENSILE STRENGTH (MPA) MINIMUM |
YIELD STR 0.2% PROOF (MPA) MINIMUM |
HARDNESS | |
|---|---|---|---|---|---|
| ROCKWELL B (HR B) MAXIMUM | BRINELL (HB) MAXIMUM | ||||
| 316 | 40 | 515 | 205 | 95 | 217 |
316 Stainless Steel Tube Sizes
| Outer Diameter in mm | Thickness in mm |
|---|---|
| 21.3mm | 2.1mm |
| 21.3mm | 2.8mm |
| 26.7mm | 2.1mm |
| 26.7mm | 2.9mm |
| 33.4mm | 2.8mm |
| 33.4mm | 3.4mm |
| 42.2mm | 2.8mm |
| 42.2mm | 3.6mm |
| 48.3mm | 2.8mm |
| 48.3mm | 3.6mm |
| 316 60.3mm | 2.8mm |
| 60.3mm | 3.9mm |
| 73mm | 3.1mm |
| 73mm | 5.2mm |
| 88.9mm | 3.1mm |
| 88.9mm | 5.5mm |
| 101.6mm | 3.1mm |
| 101.6mm | 5.7mm |
| 114.3mm | 3.1mm |
ASTM A213 TP316 Tubes Equivalent
| GRADE | UNS NO |
EURONORM | OLD BRITISH | SWEDISH SS |
JAPANESE JIS |
||
|---|---|---|---|---|---|---|---|
| NO | NAME | BS | EN | ||||
| 316 | S31600 | 1.4401 | X5CrNiMo17-12-2 | 316S31 | 58H, 58J | 2347 | SUS 316 |
Physical Properties of SS 316 Welded Tube
| GRADE | DENSITY (KG/M3) |
MEAN CO-EFF OF THERMAL EXPANSION (ΜM/M/°C) | ELASTIC MODULUS (GPA) |
SPECIFIC HEAT 0-100°C (J/KG.K) | THERMAL CONDUCTIVITY (W/M.K) |
ELEC RESISTIVITY (NΩ.M) |
|||
|---|---|---|---|---|---|---|---|---|---|
| 0-100°C | 0-315°C | 0-538°C | AT 100°C | AT 500°C | |||||
| 316 | 8000 | 15.9 | 16.2 | 17.5 | 193 | 500 | 16.3 | 21.5 | 74 |
SA 213 TP 316 Stainless Steel Tubing Dimensions
| O.D. IN INCHES | WALL DECIMAL | WALL GAUGE | WEIGHT PER FT. IN LBS. | I.D. IN INCHES |
|---|---|---|---|---|
| 1/8 | .028 | 22 | .029 | .069 |
| 3/16 | .028 | 22 | .048 | .132 |
| 1/4 | .028 | 22 | .066 | .194 |
| 5/16 | .028 | 22 | .085 | .257 |
| 3/8 | .028 | 22 | .104 | .319 |
| 7/16 | .035 | 20 | .151 | .368 |
| 1/2 | .028 | 22 | .141 | .444 |
| 5/8 | .028 | 22 | .179 | .569 |
| 3/4 | .035 | 20 | .267 | .680 |
| 7/8 | .035 | 20 | .314 | .805 |
| 1 | .035 | 20 | .361 | .930 |
| 1 1/4 | .035 | 20 | .454 | 1.180 |
| 1 1/2 | .035 | 20 | .548 | 1.430 |
| 1 3/4 | .035 | 20 | .641 | 1.680 |
| 1 7/8 | .095 | 13 | 1.806 | 1.685 |
| 2 | .035 | 20 | .733 | 1.930 |
| 2 1/4 | .065 | 16 | 1.517 | 2.120 |
| 2 1/2 | .049 | 18 | 1.283 | 2.402 |
| 2 3/4 | .120 | 11 | 3.371 | 2.510 |
| 3 | .065 | 16 | 2.037 | 2.870 |
| 3 1/4 | .120 | 11 | 4.011 | 3.010 |
| 3 1/2 | .065 | 16 | 2.385 | 3.370 |
| 4 | .120 | 11 | 4.973 | 3.760 |
| 5 | .120 | 11 | 6.254 | 4.760 |
| 6 | .120 | 11 | 7.536 | 5.760 |
316 Stainless Steel Seamless Tubing Tolerance
| Outer Dia | Wall Tolerance | Outer Dia Tolerance |
|---|---|---|
| .500”–1.500” excl | ± 10% | ± .005” |
| ≤ .500” | ± 10% | ± .005” |
| 1.500”–3.500” excl | ± 10% | ± .010” |
| 3.500”–5.500” excl | ± 10% | ± .015” |
WNR 1.4401 Tube Application
316 Stainless Steel Tube 25mm Pressure Rating
| Tube | Wall Thickness | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.020 | 0.016 | 0.065 | 0.035 | 0.028 | 0.049 | 0.095 | 0.083 | 0.120 | 0.109 | 0.156 | 0.134 | 0.188 | |
| Working Pressure, psig | |||||||||||||
| 5/16 | 2,400 | 7,800 | 4,200 | 3,360 | 5,880 | 11,437 | 9,945 | ||||||
| 1/4 | 3,000 | 9,750 | 5,250 | 4,200 | 7,350 | 14,250 | 12,450 | ||||||
| 3/8 | 2,000 | 6,500 | 3,500 | 2,999 | 4,899 | 9,500 | 8,300 | 12,000 | 10,899 | ||||
| 1/8 | 8,000 | 4,800 | 10,500 | 9,750 | 14,700 | ||||||||
| 1/16 | 12,000 | 9,500 | |||||||||||
| 3/16 | 3,997 | 3,200 | 12,965 | 7,374 | 5,600 | 9,800 | |||||||
| 1 | 750 | 2,437 | 1,312 | 1,050 | 1,837 | 3,562 | 3,112 | 4,500 | 4,087 | 5,850 | 5,025 | 7,012 | |
| 7/8 | 857 | 2,786 | 1,500 | 1,200 | 2,100 | 4,070 | 3,557 | 5,143 | 4,670 | 6,686 | 5,742 | 8,013 | |
| 5/8 | 1,200 | 3,900 | 2,100 | 1,680 | 2,940 | 5,722 | 4,980 | 7,200 | 6,540 | 9,360 | 8,040 | 11,220 | |
| 1/2 | 1,500 | 4,875 | 2,625 | 2,100 | 3,675 | 7,125 | 6,225 | 9,000 | 8,175 | ||||
| 3/4 | 999 | 3,249 | 1,749 | 1,400 | 2,450 | 4,749 | 4,149 | 6,000 | 5,450 | 7,800 | 6,700 | 9,350 | |
| 1 1/8 | 665 | 2,167 | 1,166 | 933 | 1,633 | 3,167 | 2,767 | 3,999 | 3,633 | 5,199 | 4,466 | 6,232 | |
SS 316 Tube Manufacturing Process
| Step | Description |
|---|---|
| Material Selection | Select Premium 316 Stainless Steel. |
| Melting | In an Electric Arc Furnace, Melt Steel. |
| Casting | Formed Into Billets or Slabs. |
| Hot Rolling | Form Heated Billets Into Tubes by Rolling Them. |
| Cold Working | Additional Process Tubes for Finish and Robustness. |
| Welding | If Necessary, Weld Seams to Construct Tubes. |
| Annealing | To Reduce Stress and Improve Corrosion Resistance, Heat-treat. |
| Pickling | Use an Acid Wash to Enhance Surface Quality and Get Rid of Oxides. |
| Inspection | Verify Compliance and Quality. |
| Finishing | Final Surface Treatment and Polishing. |
AISI 316 ERW Tube HSN Code
| Product | HSN Code |
|---|---|
| AISI 316 ERW Tube | 7304 |
UNS S31600 Welded Tube Schedule Chart
| NB | OD | Sch-80S | Sch-160S | Sch-10S | Sch-5S | Sch-XXS | Sch-40S | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | INCH | mm | Weight | Wt | Weight | Wt | Weight | Wt | Weight | Wt | Weight | Wt | Weight | Wt |
| (Kg/mt) | mm | (Kg/mt) | mm | (Kg/mt) | mm | (Kg/mt) | mm | (Kg/mt) | mm | (Kg/mt) | mm | |||
| 6 | 1/4 | 13.7 | 0.80 | 3.02 | - | - | 0.49 | 1.65 | 0.390 | 1.24 | - | - | 0.631 | 2.24 |
| 3 | 1/8 | 10.3 | 0.47 | 2.41 | - | - | 0.28 | 1.24 | 0.276 | 1.24 | - | - | 0.37 | 1.73 |
| 10 | 3/8 | 17.1 | 1.10 | 3.20 | - | - | 0.63 | 1.65 | 0.490 | 1.24 | - | - | 0.845 | 2.31 |
| 20 | 3/4 | 26.7 | 2.20 | 3.91 | 2.89 | 5.54 | 1.28 | 2.11 | 1.03 | 1.65 | 3.63 | 7.82 | 1.68 | 2.87 |
| 15 | 1/2 | 21.3 | 1.62 | 3.75 | 1.94 | 4.75 | 1.00 | 2.11 | 0.800 | 1.65 | 2.55 | 7.47 | 1.27 | 2.77 |
| 25 | 1 | 33.4 | 3.24 | 4.55 | 4.24 | 6.35 | 2.09 | 2.77 | 1.30 | 1.65 | 5.45 | 9.09 | 2.50 | 3.38 |
| 40 | 1 1/2 | 48.3 | 5.41 | 5.08 | 7.25 | 7.14 | 3.11 | 2.77 | 1.91 | 1.65 | 9.54 | 10.16 | 4.05 | 3.68 |
| 32 | 1 1/4 | 42.2 | 4.47 | 4.85 | 5.61 | 6.35 | 2.70 | 2.77 | 1.65 | 1.65 | 7.77 | 9.70 | 3.38 | 3.56 |
| 65 | 2 1/2 | 73.0 | 11.4 | 7.01 | 14.9 | 9.53 | 5.26 | 3.05 | 3.69 | 2.11 | 20.39 | 14.2 | 8.63 | 5.16 |
| 50 | 2 | 60.3 | 7.48 | 5.54 | 11.1 | 8.74 | 3.93 | 2.77 | 2.40 | 1.65 | 13.44 | 11.07 | 5.44 | 3.91 |
| 80 | 3 | 88.9 | 15.2 | 7.62 | 21.3 | 11.1 | 6.45 | 3.05 | 4.51 | 2.11 | 27.65 | 15.24 | 11.30 | 5.49 |
| 500 | 20 | 508.0 | 311.2 | 26.19 | 564.68 | 49.99 | 68.71 | 5.54 | 59.25 | 4.78 | - | - | 183.42 | 15.09 |
| 125 | 5 | 141.3 | 31.97 | 9.53 | 49.11 | 15.88 | 11.57 | 3.40 | 9.47 | 2.77 | 57.43 | 19.05 | 21.8 | 6.55 |
| 100 | 4 | 114.3 | 22.3 | 8.56 | 33.54 | 13.49 | 8.36 | 3.05 | 5.84 | 2.11 | 41.03 | 17.12 | 16.07 | 6.02 |
| 150 | 6 | 168.3 | 42.7 | 10.97 | 67.56 | 18.2 | 13.84 | 3.40 | 11.32 | 2.77 | 79.22 | 21.95 | 28.3 | 7.11 |
| 250 | 10 | 273.1 | 96.0 | 12.7 | 172.4 | 28.6 | 27.78 | 4.19 | 22.63 | 3.40 | 155.15 | 25.40 | 60.5 | 9.27 |
| 200 | 8 | 219.1 | 64.6 | 12.7 | 111.2 | 23.0 | 19.96 | 3.76 | 14.79 | 2.77 | 107.8 | 22.23 | 42.6 | 8.18 |
| 350 | 14 | 355.6 | 158.08 | 19.05 | 281.70 | 35.71 | 41.3 | 4.78 | 34.36 | 3.96 | - | - | 94.59 | 11.13 |
| 300 | 12 | 323.9 | 132.0 | 12.7 | 238.76 | 33.32 | 36.00 | 4.57 | 31.25 | 3.96 | 186.97 | 25.40 | 73.88 | 9.52 |
| 450 | 18 | 457.2 | 254.36 | 23.8 | 466.40 | 45.71 | 53.42 | 4.78 | 46.80 | 4.19 | - | - | 155.80 | 14.27 |
| 600 | 24 | 609.6 | 442.08 | 30.96 | 808.22 | 59.54 | 94.45 | 6.35 | 82.47 | 5.54 | - | - | 255.41 | 17.48 |
316 Stainless Steel vs 304
| Feature | 304 Stainless Steel | 316 Stainless Steel |
|---|---|---|
| Composition | 8% nickel, 18% chromium | 10% nickel, 16% chromium, 2% molybdenum |
| Corrosion Resistance | Great, but Less Efficient in Chlorides | Outstanding, Extremely Resistant to Chlorides |
| Cost | Lower Price | Increased Price Because of Molybdenum |
| Strength | Good General Strength | Greater Strength, Particularly in Higher Temperatures |
| Durability | Ideal for a Variety of Applications | More Durable in Challenging Conditions |
| Applications | Architecture, Kitchen equipment | Chemical Processing, Marine |
| Weldability | Good | Excellent |
AISI 316 ERW Tube Countrywise Shipping Time
| Cost Variation 5% | |
|---|---|
| Location | Shipping in Days |
| Malaysia | 7 |
| Singapore | 8 |
| Indonesia | 7 |
| Vietnam | 14 |
| Thailand | 7 |
| South Korea | 7 |
| Sri Lanka | 5 |
| Japan | 7 |
| Maldives | 7 |
| Mayanmar | 25 |
| Bangladesh | 14 |
| Taiwan | 15 |
| Argentina | 45 |
| Colombia | 45 |
| Cambodia | 9 |
| Bolivia | 45 |
| Chile | 45 |
| Brazil | 45-60 |
| Venezuela | 45 |
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