Stainless Steel 321 Seamless Pipe
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Neeka Tubes is a leading manufacturer of Stainless Steel 321 Seamless Pipe. Offering high-quality products in various types. Including Round, Square, Rectangle, Coil “U” Shape. Stainless Steel 321 Seamless Pipe is made from a titanium-stabilized austenitic stainless steel. Known for its excellent resistance to high temperatures, oxidation and intergranular corrosion. This grade maintains strength and durability even in extreme conditions. This assure durable reliability and superior mechanical properties.
Our high-quality UNS S32100 Seamless Pipes, known for their excellent strength and durability. These pipes contain 9-12% Nickel and 17-19% Chromium providing outstanding corrosion and oxidation resistance. With a tensile strength of 515 MPa and yield strength of 205 MPa SS 321 ensures excellent mechanical performance. It also has a hardness of up to 95 HRB. Making it strong yet workable. These properties make SS 321 Seamless Pipes highly reliable for demanding conditions.
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Features of Stainless Steel 321 Seamless Pipe
- Smooth Surface Finish: Our Stainless Steel 321 seamless pipes have polished, even surfaces. The smooth finish reduces friction and ensures steady fluid flow. It also makes handling and installation more comfortable.
- Excellent Weldability: These pipes are easy to weld without compromising strength. Smooth, strong joints form quickly, making them reliable for industrial, chemical, and construction applications.
- Lightweight yet sturdy: 321 seamless pipes are strong enough to handle stress and pressure without being too heavy. This mix makes them easy to move and put up without losing strength.
- Length Options: The pipes come in multiple lengths to fit different setups. You can choose the right size, reducing cutting needs and making installation quicker and more precise.
- Ease of Cleaning: These pipes are easy to clean as they have smooth surfaces and don’t rust. They are great for systems where cleanliness and upkeep are important like water or food lines.
Most Common Types of Stainless Steel 321 Seamless Pipe
SS 321 Seamless Pipe
321 SS Round Pipe
SS 321 Schedule 5S Pipe
SS 321 Polished Pipe
SS 321 Schedule 40 Seamless Pipe
321 Stainless Steel Thin Wall Pipe
Stainless Steel 321 Custom Pipe
Stainless Steel 321 Cold Drawn Seamless Pipe
Stainless Steel 321 Seamless Pipe Specifications
| Standard | AISI, DIN, EN, GB, JIS, ASTM, ASME |
| Pipe Dimensions | ANSI/ASME B36.19, B36.10 |
| Range | 6NB to 1200NB |
| Outer Diameter | 1/8″ NPS to 12″ NPS |
| Thickness | 0.6 mm to 12.7 mm |
| Schedules | SCH. 5, SCH 10, SCH 20, SCH 30, SCH 40, SCH 60, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, SCH XXS |
| Length | Single Random, Double Random & Cut Length |
| Specifications | ASTM A312 / ASTM SA312 |
| Types | Round, Square, Rectangle, Hydraulic, Honed Pipe |
| End | Plain End, Beveled End |
321 Stainless Steel Seamless Pipe Chemical Composition
| Grade | Ni | N | Cr | C | Si | Mn | P | S | TI |
| SS 321 | 09 – 12 | 0.10 | 17 – 19 | 0.08 max | 1 max | 2 max | 0.040 max | 0.030 max | 4(C+N) |
Mechanical Properties of SS 321 Seamless Pipe
| Grade | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 321 | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
Equivalent Grades For 321 Stainless Steel Seamless Pipe
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 321 | 1.4541 | S32100 | SUS 321 | 321S31 | 08Х22Н5 | Z7CN18‐09 | X6CrNiTi18-10 |
Contact Neeka tubes today for a best offer & competitive quotation Of Stainless Steel 321 Seamless Pipes
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Stainless Steel 321 Seamless Pipe Dimensions In MM
| Nominal size in Inch | Outside diameter in Inch | Outside diameter in MM | Wall thickness in Inch | Wall thickness in MM | Weight [lb/ft] | Weight [kg/m] |
|---|---|---|---|---|---|---|
| 1/4 Inch | 0.540 | 13.7 MM | 0.088 | 2.24 | 0.42 | 0.84 |
| 12 Inch | 12.750 | 323.8 MM | 0.406 | 10.31 | 53.52 | 79.73 |
| 1/2 Inch | 0.840 | 21.3 MM | 0.109 | 2.77 | 0.85 | 1.27 |
| 32 Inch | 32 | 813.0 MM | 0.688 | 17.48 | 230.08 | 342.91 |
| 2 1/2 Inch | 2.875 | 73.0 MM | 0.203 | 5.16 | 5.79 | 8.63 |
| 6 Inch | 6.625 | 168.3 MM | 0.280 | 7.11 | 18.97 | 28.26 |
| 20 Inch | 20 | 508.0 MM | 0.594 | 15.09 | 123.11 | 183.42 |
| 1/8 Inch | 0.405 | 10.3 MM | 0.068 | 1.73 | 0.24 | 0.37 |
| 3 Inch | 3.500 | 88.9 MM | 0.216 | 5.49 | 7.58 | 11.29 |
| 18 Inch | 18 | 457.0 MM | 0.562 | 14.27 | 104.67 | 155.80 |
| 3/4 Inch | 1.050 | 26.7 MM | 0.113 | 2.87 | 1.13 | 1.69 |
| 24 Inch | 24 | 610.0 MM | 0.688 | 17.48 | 171.29 | 255.41 |
| 3 1/2 Inch | 4.000 | 101.6 MM | 0.226 | 5.74 | 9.11 | 13.57 |
| 5 Inch | 5.563 | 141.3 MM | 0.258 | 6.55 | 14.62 | 21.77 |
| 1 1/4 Inch | 1.660 | 42.2 MM | 0.140 | 3.56 | 2.27 | 3.39 |
| 1 Inch | 1.315 | 33.4 MM | 0.133 | 3.38 | 1.68 | 2.50 |
| 1 1/2 Inch | 1.900 | 48.3 MM | 0.145 | 3.68 | 2.72 | 4.05 |
| 14 Inch | 14 | 355.6 MM | 0.375 | 11.13 | 54.57 | 94.55 |
| 2 Inch | 2.375 | 60.3 MM | 0.154 | 3.91 | 3.65 | 5.44 |
| 4 Inch | 4.500 | 114.3 MM | 0.237 | 6.02 | 10.79 | 16.07 |
| 10 Inch | 10.750 | 273.0 MM | 0.365 | 9.27 | 40.48 | 60.31 |
| 8 Inch | 8.625 | 219.1 MM | 0.322 | 8.18 | 28.55 | 42.55 |
| 16 Inch | 16 | 406.4 MM | 0.500 | 12.70 | 82.77 | 123.30 |
Thickness Chart of SS 321 Seamless Pipe
| Sizes | SCH 10 321 Grade Stainless Steel Pipe | O.D | |
| DIA | |||
| Inch | DN | Thickness | Millimetre (mm) |
| 1 Inch | DN 25 | 2.77 | 33.4 |
| 2 Inch | DN 50 | 2.77 | 60.3 |
| 3 Inch | DN 80 | 3.05 | 88.9 |
| 4 Inch | DN 100 | 3.05 | 114.3 |
| 5 Inch | DN 125 | 3.43 | 141.3 |
| 6 Inch | DN 150 | 3.43 | 168.3 |
| 8 Inch | DN 200 | 3.76 | 219.1 |
| 10 Inch | DN 250 | 4.19 | 273.1 |
| 11/2 Inch | DN 40 | 2.77 | 48.3 |
| 11/4 Inch | DN 32 | 2.77 | 24.2 |
| 12 Inch | DN 300 | 4.57 | 323.9 |
| 14 Inch | DN 350 | 6.35 | 355.6 |
| 16 Inch | DN 400 | 6.35 | 406.4 |
| 18 Inch | DN 450 | 6.35 | 457.2 |
| 21/2 Inch | DN 65 | 3.05 | 73 |
| 22 Inch | DN 550 | 6.35 | 558.8 |
| 24 Inch | DN 600 | 6.35 | 609.6 |
| 34 Inch | DN 850 | 7.92 | 863.6 |
| 31/2 Inch | DN 90 | 3.05 | 101.6 |
| 36 Inch | DN 900 | 7.92 | 914.4 |
SS 321 Seamless Pipes Packing & Marking
Packing & Delivery
SS 321 seamless pipes are packaged in wooden cases, plastic bags, or secured with steel strips according to the customers’ specifications. The packaging protects the pipes from damage during shipping. Special packaging can also be arranged based on customer requirements.
We ensure safe handling, and timely delivery by dealing with prominent shipping firms that provide both domestic and international services. Customers are provided with tracking information for better convenience and transparency.
Inspection, Test Reports
Stainless Steel 321 Seamless Pipes come with complete quality assurance, including Mill Test Certificates, EN 10204 3.1, and NABL Approved Lab Reports. The Pipes undergo chemical and mechanical testing, PMI tests. And visual inspections to assure high quality. Additionally both destructive and non-destructive tests are conducted. Along with third-party inspection reports guaranteeing reliability and superior performance.
Industrial Application of SS 321 Seamless Pipe
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