Stainless Steel 347 Seamless Pipe
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Neeka Tubes is one of the most well-reputed suppliers of Stainless Steel 347 Seamless Pipe. We supply and export high-quality pipes for many industries throughout the globe. Niobium makes Stainless Steel 347 Seamless Pipe resistant to tough conditions and rust, and thus is widely used in various industries. This feature makes the pipe long-lasting and efficient when heated. It comes in Round, Square, and rectangular shapes, which makes it suitable for many tasks. The pipe sizes start from 6NB to 1200NB, with an outer diameter ranging from 1/8″ NPS to 12″ NPS. Its seamless design assures smooth flow and excellent performance even in high-temperature and high-pressure situations.
SS ASTM A312 TP347 Seamless Pipes are made from a strong blend of 9-13% Nickel, 17-20% Chromium and Niobium providing excellent strength and corrosion resistance. With a low carbon content of 0.08% they are easy to weld and highly durable. These pipes offer a yield strength of 205 MPa and 40% elongation, demonstrating superior mechanical properties. Their seamless design ensures reliable performance in high-temperature and high-pressure conditions.
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Features of Stainless Steel 347 Seamless Pipe:
- Strength at high temperatures – These pipes hold their strength and stability even at high temperatures. This means they can be used in many different settings.
- Good resistance to oxidation – These pipes can resist oxidation at temperatures up to 870°C. This makes them ideal for high-temperature, high-pressure environments.
- Strong against creep – With good properties against creep and stress, Stainless Steel 347 seamless pipes work well in long-lasting high-temperature situations.
- Non-magnetic – This alloy stays non-magnetic when tested. This makes it good for uses where low magnetic interference matters.
- Easy to shape – Stainless Steel 347 seamless pipes are simple to form and machine. This allows for easy production of detailed shapes for industrial use.
Stainless Steel 347 Seamless Pipes are used in aerospace, heat exchangers, boilers, and power plants. They resist rust and stay strong at high temperatures. SS ASTM A312 TP347 Seamless Pipes are vital in oil, gas, chemical and food industries. Their toughness makes them ideal for refineries, furnaces and high-pressure applications ensuring durability.
Most Common Types of Stainless Steel 347 Seamless Pipe
SS 347 Seamless Pipe
347 SS Round Pipe
SS 347 Schedule 5S Pipe
SS 347 Polished Pipe
SS 347 Schedule 40 Seamless Pipe
347 Stainless Steel Thin Wall Pipe
Stainless Steel 347 Custom Pipe
Stainless Steel 347 Cold Drawn Seamless Pipe
Stainless Steel 347 Seamless Pipe Specifications
| Standard | AISI, DIN, EN, GB, JIS, ASTM, ASME |
| Pipe Dimensions | ANSI/ASME B36.19, B36.10 |
| Range | 6.35 mm OD to 101.6 mm OD |
| Outer Diameter | 3.00 mm to 219.10 mm |
| Thickness | 0.40 mm to 12.70 mm |
| Schedules | 5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXH |
| Length | Up to 30 meters, Custom Cut Lengths |
| Specifications | ASTM A213 / ASTM SA213 |
| Types | Round, Square, Rectangle, Coil, “U” Shape, Hydraulic & Honed Tubes |
| End | Plain End, Beveled End |
347 Stainless Steel Seamless Pipe Chemical Composition
| Grade | Ni | N | Cr | C | Si | Mn | P | S | Other |
| SS 347 | 09 – 13 | – | 17 – 20 | 0.08 max | 1 max | 2 max | 0.045 max | 0.030 max | Nb=10(C+N) – 1.0 |
Mechanical Properties of SS 347 Seamless Pipe
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2% Offset) | Elongation |
| SS 347 | 8.0 g/cm³ | 1400 °C (2550 °F) | Psi – 75000, MPa – 515 | Psi – 30000, MPa – 205 | 40% |
Equivalent Grades For 347 Stainless Steel Seamless Pipe
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 347 | 1.4550 | S34700 | SUS 347 | 347S31 | 08Х18Н10Т | Z8CN29‐08 | X6CrNiNb18-10 |
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Stainless Steel 347 Seamless Pipe Dimensions In MM
| Nominal size in Inch | Wall thickness in Inch | Outside diameter in mm | Wall thickness in mm | Outside diameter in Inch | Weight [Kg/M] | Weight [lb/ft] |
|---|---|---|---|---|---|---|
| 1/2 Inch | 0.065 | 21.3 mm | 1.65 | 0.840 | 0.80 | 0.54 |
| 3/4 Inch | 0.065 | 26.7 mm | 1.65 | 1.050 | 1.03 | 0.69 |
| 1 Inch | 0.065 | 33.4 mm | 1.65 | 1.315 | 1.30 | 0.87 |
| 1 1/4 Inch | 0.065 | 42.2 mm | 1.65 | 1.660 | 1.66 | 1.12 |
| 1 1/2 Inch | 0.065 | 48.3 mm | 1.65 | 1.900 | 1.91 | 1.28 |
| 2 Inch | 0.065 | 60.3 mm | 1.65 | 2.375 | 2.40 | 1.61 |
| 2 1/2 Inch | 0.083 | 73.0 mm | 2.11 | 2.875 | 3.71 | 2.49 |
| 3 Inch | 0.083 | 88.9 mm | 2.11 | 3.500 | 4.54 | 3.05 |
| 3 1/2 Inch | 0.083 | 101.6 mm | 2.11 | 4.000 | 5.21 | 3.50 |
| 4 Inch | 0.083 | 114.3 mm | 2.11 | 4.500 | 5.88 | 3.95 |
| 5 Inch | 0.109 | 141.3 mm | 2.77 | 5.563 | 9.52 | 6.40 |
| 6 Inch | 0.109 | 168.3 mm | 2.77 | 6.625 | 11.38 | 7.65 |
| 8 Inch | 0.109 | 219.1 mm | 2.77 | 8.625 | 14.87 | 9.99 |
| 10 Inch | 0.134 | 273.1 mm | 3.4 | 10.750 | 22.76 | 15.29 |
| 12 Inch | 0.156 | 323.9 mm | 3.96 | 12.750 | 31.44 | 21.13 |
| 14 Inch | 0.156 | 355.6 mm | 3.96 | 14.000 | 34.56 | 23.22 |
| 16 Inch | 0.165 | 406.4 mm | 4.19 | 16.000 | 41.83 | 28.11 |
| 18 Inch | 0.165 | 457.0 mm | 4.19 | 18.000 | 47.09 | 31.64 |
| 20 Inch | 0.188 | 508.0 mm | 4.78 | 20.000 | 59.70 | 40.12 |
| 22 Inch | 0.188 | 559.0 mm | 4.78 | 22.000 | 65.75 | 44.18 |
| 24 Inch | 0.218 | 610.0 mm | 5.54 | 24.000 | 83.11 | 55.85 |
| 30 Inch | 0.250 | 762.0 mm | 6.35 | 30.000 | 119.09 | 80.02 |
SS 347 Seamless Pipe Thickness Chart
| Outside Diamter, OD (in mm) | Wall Thickness, WT (in mm) |
|---|---|
| 6mm – 630mm | 0.5mm-30mm |
| 12.7mm* 12.7mm to 300mm* 300mm | 0.5mm-30mm |
| 10*20mm to 100*200mm | 0.5mm-30mm |
| 6mm to 630mm | 0.5mm-30mm |
| 12.7mm to 250mm | 0.5mm-30mm |
| 16mm to 85mm | 0.5mm-3.0mm |
| 13mm to 85mm | 0.5mm-2.0mm |
| 20mm to 200mm | 0.5mm-2.0mm |
| 22mm*0.7mm to 108mm*2.0mm | 0.5mm-2.0mm |
| 12.5mm to 203.2mm | 1.0mm – 5mm |
| 0.28mm to 10mm | 0.08mm – 1.2mm |
| 6mm to 430mm | 0.8mm – 30mm |
SS 347 Seamless Pipes Packing & Marking
packaging and marking
Seamless SS 347 Pipes are carefully packed in wooden boxes, bundles or with plastic coverings to prevent damage.
Each pipe displays its size, grade, heat number, and maker’s details. The clear labels help with tracking and meeting regulations. There are also extra markings to meet customer needs and for international shipping.
Inspection, Test Reports
SS 347 Seamless Pipes come with essential documents like PMI Test Reports, EN 10204 3.1, Mill Test Certificates, and NABL-approved lab reports. They undergo third-party checks and both destructive and non-destructive testing, ensuring high quality, reliability, and compliance with industry standards for critical applications.
Industrial Application of SS 347 Seamless Pipe
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