Daxun 321 and 321H stainless steel PIPE and TUBE China supplier
As China’s leading Stainless Steel pipe and tube supplier and exporter, Daxun provides stainless steel PIPEs to the world.
- Grade: AISI 321/321H-S32100
- Manufacturing: hot-rolled, cold-drawn, forged, welded
- Standards: ASTM, ASME, GB, DIN, JIS, ISO, EN, BS
- Type: both seamless and welded pipes
- Diameter: from small diameter to large diameter pipes
- Thickness: thin-walled pipes and thick-walled pipes
- Surface: pickled, polished, bright annealed
- Length: 3000mm, 6000mm, 9000mm, etc.
Global leader in stainless steel pipe and tube fabrication services
ASTM A312 / A358 Stainless Steel 321 Pipe Supplier; 321 / 321H Stainless Steel Seamless Pipe, Contact us for ASME SA312 321 Stainless Steel Pipe.
Type 321 stainless steel is an austenitic steel. It shares many of the same properties as Type 304, but with increased titanium and carbon content. Type 321 provides metal fabricators with superior corrosion and oxidation resistance, as well as exceptional toughness even at cryogenic temperatures. It is very resistant to oxidation and corrosion. Titanium in 321 stainless steel provides various attractive properties: Prevents harmful carbide precipitation in the heat affected zone (HAZ) of the weld. Offers partial protection against intergranular corrosion. Reduces embrittlement in high-risk areas of the weld. 321H stainless steel is commonly used in applications where parts are heated to carbide precipitation temperatures (800°F-1500°F) and exposed to corrosive atmospheres. 321 stainless steel is identical to 304 stainless steel, however it contains more nickel and is stabilised with titanium. Titanium preferentially interacts with the carbon in the steel, preventing the formation of chromium carbides at the grain boundaries. This maintains corrosion resistance qualities by minimising chromium consumption near the grain borders during exposure to critical temperatures. This grade hardens well with cold working. It is easily weldable and rarely requires post-weld annealing to maintain its outstanding performance in a variety of corrosive conditions.
321 Stainless Steel Seamless Pipe, 321 Stainless Steel ERW Pipe, 321 Stainless Steel EFW Pipe, 321 Stainless Steel Welded Pipes and Tubes (ASTM A213 / A312 / A269 / A358)
Daxun Alloys is a prominent producer, supplier, stockist, and exporter of high-quality stainless steel products such as Stainless Steel 321/321H Steel Pipes. The pipes we offer are manufactured in accordance with national and international raw material quality standards. The industry provides a vast selection of pipes with varied standards, sizes, and specifications. The pipes are easily available in customised specifications based on the needs of the consumers. As a result, purchasers can select items in a variety of sizes, wall thickness, length, diameters, and other specifications to meet their specific requirements. The products are sold to both international and domestic buyers at market-leading pricing. We provide a variety of mechanical tests to test and assure our products. To supply our valued clients with high satisfaction, we conduct flare tests, hardness testing, micro and macro tests, chemical tests, and so on.
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Data
- TECHNICAL PARAMETERS
- INGREDIENTS
- MECHANICAL PROPERTIES
- PHYSICAL PROPERTIES
- EQUIVALENT GRADE
- PIPE TYPE
| WERKSTOFF NR.1.4541 SS 321 Specification | Stainless Steel 321, ASTM A312 TP 321 SS |
| DIN 1.4541 SS 321 Pipe | 321 Stainless Steel Pipe |
| SS 321 Seamless Pipe Size | 4 to 630mm W. T.: 0.5 to 50mm |
| 321L Stainless Steel Welded Pipe Size | 5.0 mm – 1219.2 mm |
| SS UNS S32103 EFW Pipe size | 5.0 mm – 1219.2 mm |
| ASTM A312 Stainless Steel Pipe Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| SA312 TP321 Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| DIN 1.4541 SS 321 Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| 321l Stainless Steel Tube wall thickness | 0.020″ –0.220″, (special wall thicknesses available) |
| 321 Steel Length | Single Random, Double Random, Standard & Cut length Pipe & Tube |
| ASTM A312 TP 321 Stainless Steel Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| UNS S32100 Form | Round, Hydraulic, ‘U’ bent or Hollow,LSAW, Boiler, Straight Pipe, Clad Pipe, Rectangular, Square Pipe Etc |
| Stainless Steel 321 Type | Welded, Seamless, ERW, EFW, Fabricated Pipe, ‘U’ bent or Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Tube etc |
| 321 Steel End | Plain End, Beveled End, Treaded Pipe |
| SS 321 Marking | All 321l Stainless Steel Pipe are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
| ASTM A 358 SS 321 Application | Oil Pipe & Tube, Gas Pipe & Tube, Fluid Pipe & Tube, Boiler Pipe & Tube, Heat exchanger Tube |
| ASTM A312 TP 321 SS Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| ASTM A 312 SS 321 Specialize in | Alloy 321 Large Diameter Pipe |
| WERKSTOFF NR.1.4541 SS 321 Capillary Tube | |
| SS TP321 Heat Exchanger & | |
| TP321 SS Condenser Tube | |
| SS TP321 Test Certificate | Manufacturer Test Certificate |
| Laboratory Test Certificate from Govt. Approved Lab. | |
| Under Third Party Inspection | |
| Manufacturers of 321 Stainless Steel Pipe | Baosteel Stainless Steel |
| Taigang Stainless Steel | |
| Qingshan Stainless Steel | |
| ATI of the United States | |
| Nippon Steel | |
| Posco of South Korea | |
| Marking | All 321 Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
| 321/321H stainless steel tubing Testing & Inspection | Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing |
| We can also cut, thread, and groove 321l Stainless Steel Pipe to meet your specifications. Pipe Dimension ANSI/ ASME B36.10, B36.19, B2.1 | |
| Composition 321/321H Pipe and Tubing | ||
| Grade | 321 | 321H |
| UNS Designation | S32100 | S32109 |
| Carbon (C) Max. | 0.08 | 0.04–0.10 |
| Manganese (Mn) Max. | 2 | 2 |
| Phosphorous (P) Max. | 0.04 | 0.04 |
| Sulphur (S) Max. | 0.03 | 0.03 |
| Silicon (Si) Max. | 0.75 | 0.75 |
| Chromium (Cr) | 17.0–20.0 | 17.0–20.0 |
| Nickel (Ni) | 9.0–12.0 | 9.0–12.0 |
| Molybdenum (Mo) | — | — |
| Nitrogen (N) | 0.1 Max. | 0.1 Max. |
| Iron (Fe) | Bal. | Bal. |
| Other Elements | Ti=5(C) to 0.70% | Ti=4(C) to 0.60% |
| Physical Properties of 321/321H Alloys in the Annealed Condition at -20°F to +100°F | ||||||||||||||
| Tensile Strength | Yield Strength | |||||||||||||
| Alloy | UNS Designation | Spec. | psi | MPa | ksi | psi | MPa | ksi | Elongation in 2 inches (min.) % | Grain Size Req. | Maximum Harndess | Modulus of Elasticity (x106 psi) | Mean Coefficient of Thermal Expansion (IN./IN./°F x 10-6) | Thermal Conductivity (BTU-in/ft2-h-°F) |
| 321 | S32100 | — | 75,000 | 515 | — | 30,000 | 205 | — | 35 | — | — | 29 | 9.2 | — |
| 321H | S32109 | — | 75,000 | 515 | — | 30,000 | 205 | — | 35 | 7 or coarser | — | 29 | 9.2 | — |
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
| 0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
| 321/321H | 8027 | 193 | 16.6 | 17.2 | 18.6 | 16.1 | 22.2 | 500 | 720 |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
| 321H | S32109 | 321S51 | – | 1.4878 | X10CrNiTi18-10 | – | SUS 321H |
| ASTM A312 / A213 / A249 TP 321 Stainless Steel Pipes & Tubes | ASTM A249 321 Stainless Steel Square Seamless Pipes |
| ASTM A358 TP 321 Stainless Steel EFW Pipes | ASME TP 321 Stainless Steel Electric Fusion Welding Pipes |
| Stainless Steel 321 Workstoff Nr. 1.4541 Pipes & Tubes | TP 321 SS EFW Tubing |
| ASTM A312 SS 321 Round Pipes | Stainless Steel JIS SUS 321 Cold Rolled Coiled Tubing |
| SS 321 Polished Pipes | ASTM A249 321 Stainless Steel Tubing |
| 321 Stainless Steel Pipes and Tubes | SS 321 Austenitic Stainless Steel Pipes & Tubes |
| ASTM A312 TP 321 SS Seamless Pipes | TP 321 Stainless Steel LSAW Pipes |
| SS DIN 1.4541 Rectangular Welded Pipes | ASTM A213 Stainless Steel TP 321 Capillary Tube |
| TP 321 SS ERW Pipes | Stainless Steel 321 U Shaped Tubing |
| TP321 Stainless Steel EFW Tubing | TP 321 Stainless Steel Hydraulic Tubes |
| ASTM A213 SS TP321 Pipes | A213 SS 321 Electric Resistance Welding Pipes |
| Stainless Steel 321 Black Round Tubes | Stainless Steel ASTM A213 TP 321 Welded Tubing |
| ASTM A213 SS Seamless Tubing | AISI Stainless Steel ASTM A249 321 Seamless Tubing |
| Stainless Steel 321 Welded Tubes | SS ASME SA 269 TP 321 Welded Tubes |
| ASTM A312 TP 321 Stainless Steel Welded Pipes | TP 321 Stainless Steel Instrumentation Tubes |
| SS UNS S32100 Square Pipes | Stainless Steel 321 Pipe |
| TP 321 Stainless Steel Pipes & Tubing | SS JIS SUS 321 Pipes |
| Stainless Steel TP 321 Seamless Pipes | ASTM A358 TP 321 Stainless Steel EFW Pipes |
| ASTM A213 TP 321 Stainless Steel Seamless Tubes | SS 321 Hexagonal Pipe |
| Stainless Steel TP 321 Seamless Tubing | Austenitic Stainless Steel 321H Pipes |
| ASTM A213 Stainless Steel Welded Pipes | SS UNS S32109 Welded 321 Pipe |
| A249 SS TP 321 Welded Tubes | ASTM A312 TP 321 Stainless Steel Seamless Pipes |
| ASTM A312 321 Stainless Steel ERW Pipes | 321 SS Hallow Pipe |
| A312 SS 321 Rectangular Seamless Pipes | SS TP321 Seamless Pipe |
| ASTM A213 321 Stainless Steel Rectangular Tubes | Stainless Steel 321 Seamless Pipe |
| TP 321 Stainless Steel ERW Tubes | ASTM A249 TP 321 Stainless Steel Welded Tubes |
| Stainless Steel UNS S32100 Pipes & Tubes | Stainless Steel 321 Welded Pipes |
| UNS S32100 Stainless Steel Coiled Seamless Tubing | ASTM A312 TP 321 Stainless Steel Seamless Pipes |
| Stainless Steel TP 321 Heat Ex-changer Tubes | SS 321 Hallow Pipe |
| ASTM A312 TP 321 Stainless Steel Pipes & tubes | TP321 SS Welded Pipe |
| Stainless Steel DIN 1.4541 Round Tubing | Stainless Steel 321 Round Pipe |
| Stainless Steel ASTM A213 TP 321 Welded Pipe | AISI Stainless Steel ASTM A249 321 Seamless Pipe |
| SS ASME SA 269 TP 321 Welded Pipe | TP 321 Stainless Steel Instrumentation Pipe |
| Stainless Steel 321 Pipe | SS JIS SUS 321 Pipe |
| ASTM A358 TP 321 Stainless Steel EFW Pipe | SS 321 Hexagonal Pipe |
| Austenitic Stainless Steel 321H Pipe | SS UNS S32109 Welded 321 Pipe |
| ASTM A312 TP 321 Stainless Steel Seamless Pipe | 321 SS Hallow Pipe |
| SS TP321 Seamless Pipe | Stainless Steel 321 Seamless Pipe |
| ASTM A249 TP 321 Stainless Steel Welded Pipe | Stainless Steel 321 Welded Pipe |
| ASTM A312 TP 321 Stainless Steel Seamless Pipe | SS 321 Hallow Pipe |
| TP321 SS Welded Pipe | Stainless Steel 321 Round Pipe |
| AISI Type 321 Stainless Steel Pipe | 321 Stainless Steel Pipe |
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Quick response
- Good formability and weldability
- Works at temperatures up to 900°C
- Resistant to acids, alkalis and low temperatures
- Responds well to cold work hardening
- Good welding characteristics
- Excellent corrosion resistance
- High creep and stress rupture propertiesGrade: AISI 321/321H-S32100
Manufacturing: hot-rolled, cold-drawn, forged, welded
Standards: ASTM, ASME, GB, DIN, JIS, ISO, EN, BS
Type: both seamless and welded pipes
Diameter: from small diameter to large diameter pipes
Thickness: thin-walled pipes and thick-walled pipes
Surface: pickled, polished, bright annealed
Length: 3000mm, 6000mm, 9000mm, etc.Grade: AISI 321/321H-S32100
Manufacturing: hot-rolled, cold-drawn, forged, welded
Standards: ASTM, ASME, GB, DIN, JIS, ISO, EN, BS
Type: both seamless and welded pipes
Diameter: from small diameter to large diameter pipes
Thickness: thin-walled pipes and thick-walled pipes
Surface: pickled, polished, bright annealed
Length: 3000mm, 6000mm, 9000mm, etc. - 321 Stainless Steel pipe
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321 Stainless Steel pipe Daxun Advantages
- Variety: From small to large diameter stainless steel pipe, we offer a wide range of sizes and grades, including 304L, 316L, 317L ，321，310,347,2205and more.
- Flexibility: Whether you need seamless or welded steel pipe, our stainless steel pipe lengths are designed to meet your specific project requirements.
Quality - Standards: Our stainless steel pipes meet stringent standards such as ISO9001, ABS, NSF/ANSI Standard 61, and NACE MR0175 to ensure reliability and performance.
- Custom Orders: Looking for special size stainless steel pipes? We offer a variety of stainless steel pipe custom options at competitive prices and convenient online ordering.
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321 Stainless Steel pipe packaging
- Woven bag bale cargo (hexagonal)
- Special crates for U-bend pipes, (steel/wood) divided
- Each bale is wrapped in plastic to protect against wind and rain.
- SS 321 seamless pipes are protected by plastic covers.
- Plastic strips are used to secure the bale.
- Export-specific fumigation-free wooden crate packaging.
- Laminated packing slip attached to the bale or crate.
- Customized packaging as per customer needs.
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321 Stainless Steel pipe Ordering Information
321 stainless steel pipe The purchase order shall include quantity, PSL grade, type or class, API5L reference, outside diameter, wall thickness, length and any applicable attachments or additional requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating or end finish. Pipe is solution bright annealed.
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Quality, delivery, inspection
- Daxun also conducts several quality assurance tests. These tests include flattening test, pitting and resistance test, mechanical test, hardness test, material positive identification, expansion test, etc. All these tests ensure that the material is suitable for the required application.
- During the production process, we measure the diameter, thickness, and surface of the product. Our standard delivery time is 7-15 days, except for some special size products, our delivery time will increase to 20 days.
Our delivery time is strictly in accordance with the contract. - Support customer third-party agencies to go to the factory for inspection
- Support free samples to customers for testing
- Support on-site or video factory inspection
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Technical Support
If you need any additional technical assistance, our resident metallurgist and knowledgeable staff will be pleased to help. Additionally, Daxun boasts a certified testing laboratory—a first in the multi-metal and plastic inventory industry. This, in our opinion, demonstrates our unwavering dedication to quality and our philosophy as a full-service supplier.
321/321H Stainless Steel pipe and tube Features
High strength
Corrosion resistance
Heat resistance
Low temperature resistance
Environmental protection
Welding performance
Daxun Alloy Let your brand improve rapidly
- Gallery
- 321/321H STEEL PIPE DATA TUBE
- PRESSURE RATING
- SIZE
- Surface finish
| NPS | Outside Diameter | Wall Thickness | Weight | Weight | |||
| in | mm | in | mm | Sched | kg/Mtr | Lb/ft | |
| 1/2″ | 0.84 | 21 | 0.109 | 2.769 | 40 STD | 1.268 | 0.851 |
| 0.147 | 3.734 | 80 STD | 1.621 | 1.088 | |||
| 3/4″ | 1.05 | 27 | 0.113 | 2.87 | 40 STD | 1.684 | 1.131 |
| 0.154 | 3.912 | 80 STD | 2.195 | 1.474 | |||
| 1″ | 1.315 | 33 | 0.133 | 3.378 | 40 STD | 2.501 | 1.679 |
| 0.179 | 4.547 | 80 STD | 3.325 | 2.172 | |||
| 1 1/4″ | 1.66 | 42 | 0.14 | 3.556 | 40 STD | 3.385 | 2.273 |
| 0.191 | 4.851 | 80 STD | 4.464 | 2.997 | |||
| 1 1/2″ | 1.9 | 48 | 0.145 | 3.683 | 40 STD | 4.048 | 2.718 |
| 0.2 | 5.08 | 80 STD | 5.409 | 3.361 | |||
| 2″ | 2.375 | 60 | 0.154 | 3.912 | 40 STD | 5.441 | 3.653 |
| 0.218 | 5.537 | 80 STD | 7.48 | 5.022 | |||
| 2 1/2″ | 2.875 | 73 | 0.203 | 5.516 | 40 STD | 8.629 | 5.793 |
| 0.276 | 7.01 | 80 STD | 11.411 | 7.661 | |||
| 3″ | 3.5 | 89 | 0.216 | 5.486 | 40 STD | 11.284 | 7.576 |
| 0.3 | 7.62 | 80 STD | 15.272 | 10.253 | |||
| 4″ | 4.5 | 114 | 0.237 | 6.02 | 16.073 | 10.79 | |
| 0.337 | 8.56 | 22.318 | 14.983 | ||||
| 6″ | 6.625 | 168 | 0.188 | 4.775 | 19.252 | 12.924 | |
| 0.203 | 5.516 | 20.739 | 13.923 | ||||
| 0.219 | 5.563 | 22.318 | 14.983 | ||||
| 0.25 | 6.35 | 25.354 | 17.021 | ||||
| 0.28 | 7.112 | 40 STD | 58.263 | 18.974 | |||
| 0.312 | 7.925 | 31.334 | 21.036 | ||||
| 0.375 | 9.525 | 37.285 | 25.031 | ||||
| 0.432 | 10.973 | 80 XHY | 42.561 | 28.573 | |||
| 0.5 | 12.7 | 48.719 | 32.708 | ||||
| 8″ | 8.625 | 219 | 0.188 | 4.775 | 25.233 | 16.94 | |
| 0.203 | 5.156 | 27.198 | 18.259 | ||||
| 0.219 | 5.563 | 29.286 | 19.661 | ||||
| 0.25 | 6.35 | 20 | 33.308 | 22.361 | |||
| 0.277 | 7.036 | 30 | 36.786 | 24.696 | |||
| 0.322 | 8.179 | 40 | 42.352 | 28.554 | |||
| 0.375 | 9.525 | 49.216 | 33.041 | ||||
| 0.406 | 10.312 | 60 | 53.085 | 35.638 | |||
| 0.5 | 12.7 | 80 XHY | 64.627 | 43.388 | |||
| 10″ | 10.75 | 273 | 0.188 | 4.775 | 31.588 | 21.207 | |
| 0.219 | 5.563 | 36.689 | 24.631 | ||||
| 0.25 | 6.35 | 20 | 41.759 | 28.035 | |||
| 0.307 | 7.798 | 30 | 51.002 | 34.24 | |||
| 0.344 | 8.738 | 56.946 | 38.231 | ||||
| 0.365 | 9.271 | 40 STD | 63.301 | 40.483 | |||
| 0.438 | 11.125 | 71.852 | 48.238 | ||||
| 0.5 | 12.7 | 60 XHY | 81.53 | 54.735 | |||
| 0.594 | 15.088 | 80 | 95.969 | 64.429 | |||
| 12″ | 12.75 | 324 | 0.188 | 4.775 | 37.57 | 25.222 | |
| 0.219 | 5.563 | 43.657 | 29.309 | ||||
| 0.25 | 6.35 | 49.713 | 33.375 | ||||
| 0.281 | 7.137 | 55.739 | 37.42 | ||||
| 0.312 | 7.925 | 61.735 | 41.445 | ||||
| 0.375 | 9.525 | 73.824 | 49.562 | ||||
| 0.406 | 10.312 | 79.727 | 53.525 | ||||
| 0.5 | 12.7 | 97.438 | 65.415 | ||||
| 0.562 | 14.275 | 108.966 | 73.154 | ||||
| 14″ | 14 | 356 | 0.188 | 4.775 | 41.308 | 27.732 | |
| 0.219 | 5.563 | 48.012 | 32.233 | ||||
| 0.25 | 6.35 | 20 | 54.685 | 36.713 | |||
| 0.281 | 7.137 | 61.327 | 41.172 | ||||
| 0.312 | 7.925 | 67.939 | 45.611 | ||||
| 0.375 | 9.525 | STD | 81.281 | 54.568 | |||
| 0.438 | 11.125 | 40 | 94.498 | 63.441 | |||
| 0.5 | 12.7 | XHY | 107.381 | 72.09 | |||
| 0.625 | 15.875 | 132.983 | 89.278 | ||||
| 16” | 16 | 406 | 0.188 | 4.775 | 47.29 | 21.748 | |
| 0.219 | 5.563 | 54.98 | 36.91 | ||||
| 0.25 | 6.35 | 10 | 62.639 | 42.053 | |||
| 0.281 | 7.137 | 70.268 | 47.174 | ||||
| 0.312 | 7.925 | 20 | 77.866 | 52.275 | |||
| 0.344 | 8.738 | 85.677 | 57.519 | ||||
| 0.375 | 9.525 | 30 | 93.213 | 62.578 | |||
| STD | |||||||
| 0.438 | 11.125 | 108.433 | 72.797 | ||||
| 0.5 | 12.7 | 40 | 123.289 | 82.77 | |||
| XHY | |||||||
| 18″ | 18 | 457 | 0.219 | 5.563 | 61.948 | 41.588 | |
| 0.25 | 6.35 | 70.593 | 47.393 | ||||
| 0.281 | 7.137 | 79.208 | 53.176 | ||||
| 0.312 | 7.925 | 20 | 87.792 | 58.939 | |||
| 0.375 | 9.525 | STD | 105.144 | 70.588 | |||
| 0.438 | 11.125 | 30 | 122.369 | 82.152 | |||
| 0.5 | 12.7 | XHY | 139.198 | 93.45 | |||
| 0.562 | 14.275 | 40 | 155.904 | 104.666 | |||
| 0.625 | 15.875 | 172.754 | 115.978 | ||||
| 20″ | 20 | 508 | 0.25 | 6.35 | 78.547 | 52.733 | |
| 0.282 | 7.163 | 88.458 | 59.386 | ||||
| 0.312 | 7.925 | 97.719 | 65.604 | ||||
| 0.375 | 9.525 | 20 STD | 117.075 | 78.598 | |||
| 0.438 | 11.125 | 136.305 | 91.508 | ||||
| 0.5 | 12.7 | 30 XHY | 155.106 | 104.13 | |||
| 0.594 | 15.088 | 40 | 183.378 | 123.11 | |||
| 0.625 | 15.875 | 192.64 | 129.328 | ||||
| 0.688 | 17.475 | 211.368 | 141.901 | ||||
| 24″ | 24 | 610 | 0.25 | 6.35 | 94.456 | 63.413 | |
| 0.281 | 7.137 | 106.029 | 71.183 | ||||
| 0.312 | 7.925 | 117.573 | 18.932 | ||||
| 0.375 | 9.525 | 20 STD | 140.938 | 64.618 | |||
| 0.438 | 11.125 | 164.176 | 110.219 | ||||
| 0.5 | 12.7 | XHY | 186.923 | 125.49 | |||
| 0.625 | 15.875 | 232.41 | 156.028 | ||||
| 0.688 | 17.475 | 40 | 255.148 | 171.293 | |||
| 0.75 | 19.05 | 277.401 | 186.233 | ||||
| 30″ | 30 | 762 | 0.25 | 6.35 | 118.318 | 79.433 | |
| 0.281 | 7.137 | 132.851 | 89.189 | ||||
| 0.312 | 7.925 | 10 | 147.353 | 98.925 | |||
| 0.375 | 9.525 | STD | 176.731 | 118.648 | |||
| 0.438 | 11.125 | 205.983 | 138.286 | ||||
| 0.5 | 12.7 | 20 XHY | 234.647 | 157.53 | |||
| 0.625 | 15.875 | 30 | 292.066 | 196.078 | |||
| 0.688 | 17.475 | 320.817 | 215.38 | ||||
| 0.75 | 19.05 | 348.988 | 234.293 | ||||
| 36″ | 36 | 914 | 0.25 | 6.35 | 142.18 | 95.453 | |
| 0.281 | 7.137 | 159.672 | 107.196 | ||||
| 0.312 | 7.925 | 10 | 177.133 | 118.918 | |||
| 0.375 | 9.525 | STD | 215.525 | 142.678 | |||
| 0.438 | 11.125 | 247.79 | 166.353 | ||||
| 0.5 | 12.7 | 20 XHY | 282.372 | 198.57 | |||
| 0.625 | 15.875 | 351.723 | 236.128 | ||||
| 0.688 | 17.475 | 386.487 | 259.467 | ||||
| 0.75 | 19.05 | 420.576 | 282.353 | ||||
| 42″ | 42 | 1067 | 0.312 | 7.925 | 206.914 | 138.911 | |
| 0.375 | 9.525 | STD | 248.319 | 166.708 | |||
| 0.5 | 12.7 | XHY | 33.097 | 221.61 | |||
| 0.75 | 19.05 | 492.163 | 330.413 | ||||
| 48″ | 48 | 1219 | 0.375 | 9.525 | STD | 284.112 | 190.738 |
| 0.438 | 11.125 | 331.404 | 222.487 | ||||
| 0.5 | 12.7 | XHY | 377.822 | 253.65 | |||
| 0.75 | 19.05 | 563.75 | 378.473 | ||||
| 0.875 | 22.225 | 655.969 | 440.383 | ||||
| PRESSURE RATING (PSIG) | ||||||||||||
| SIZES | SCHEDULE (SCH) | OUTSIDE | WALL | TEMPERATURE (OF) | ||||||||
| (INCHES) | DIA. | THICK. | 100 | 200 | 300 | 400 | 500 | 600 | 650 | 700 | 750 | |
| (IN) | (IN) | ALLOWABLE STRESS (PSI) | ||||||||||
| 16700 | 16700 | 16700 | 15500 | 14400 | 13500 | 13200 | 12900 | 12600 | ||||
| 1″ | 40 | 1.315 | 0.133 | 2205 | 2205 | 2205 | 2047 | 1902 | 1783 | 1743 | 1703 | 1664 |
| 80 | 1.315 | 0.179 | 3061 | 3061 | 3061 | 2841 | 2640 | 2475 | 2420 | 2365 | 2310 | |
| 160 | 1.315 | 0.25 | 4493 | 4493 | 4493 | 4170 | 3874 | 3632 | 3552 | 3471 | 3390 | |
| 1 1/2″ | 40 | 1.9 | 0.145 | 1629 | 1629 | 1629 | 1512 | 1404 | 1317 | 1287 | 1258 | 1229 |
| 80 | 1.9 | 0.2 | 2303 | 2303 | 2303 | 2138 | 1986 | 1862 | 1821 | 1779 | 1738 | |
| 160 | 1.9 | 0.281 | 3362 | 3362 | 3362 | 3120 | 2899 | 2717 | 2657 | 2597 | 2536 | |
| 2″ | 40 | 2.375 | 0.154 | 1371 | 1371 | 1371 | 1272 | 1182 | 1108 | 1083 | 1059 | 1034 |
| 80 | 2.375 | 0.218 | 1985 | 1985 | 1985 | 1843 | 1712 | 1605 | 1569 | 1534 | 1498 | |
| 160 | 2.375 | 0.344 | 3283 | 3283 | 3283 | 3047 | 2831 | 2654 | 2595 | 2536 | 2477 | |
| 3″ | 40 | 3.5 | 0.216 | 1301 | 1301 | 1301 | 1208 | 1122 | 1052 | 1028 | 1005 | 982 |
| 80 | 3.5 | 0.3 | 1844 | 1844 | 1844 | 1712 | 1590 | 1491 | 1458 | 1425 | 1391 | |
| 160 | 3.5 | 0.438 | 2787 | 2787 | 2787 | 2587 | 2403 | 2253 | 2203 | 2153 | 2103 | |
| 4″ | 40 | 4.5 | 0.237 | 1102 | 1102 | 1102 | 1023 | 950 | 891 | 871 | 851 | 831 |
| 80 | 4.5 | 0.337 | 1596 | 1596 | 1596 | 1482 | 1377 | 1291 | 1262 | 1233 | 1204 | |
| 160 | 4.5 | 0.531 | 2611 | 2611 | 2611 | 2424 | 2552 | 2111 | 2064 | 2017 | 1970 | |
| 5″ | 40 | 5.563 | 0.258 | 965 | 965 | 965 | 896 | 832 | 780 | 763 | 746 | 728 |
| 80 | 5.563 | 0.375 | 1428 | 1428 | 1428 | 1325 | 1231 | 1154 | 1129 | 1103 | 1077 | |
| 160 | 5.563 | 0.625 | 2474 | 2474 | 2474 | 2296 | 2133 | 2000 | 1955 | 1911 | 1866 | |
| 6″ | 40 | 6.625 | 0.28 | 877 | 877 | 877 | 814 | 756 | 709 | 693 | 677 | 661 |
| 80 | 6.625 | 0.432 | 1379 | 1379 | 1379 | 1280 | 1189 | 1115 | 1090 | 1065 | 1040 | |
| 160 | 6.625 | 0.719 | 2382 | 2382 | 2382 | 2211 | 2054 | 1925 | 1883 | 1840 | 1797 | |
| 8″ | 40 | 8.625 | 0.322 | 771 | 771 | 771 | 716 | 665 | 623 | 610 | 596 | 582 |
| 80 | 8.625 | 0.5 | 1218 | 1218 | 1218 | 1131 | 1050 | 985 | 963 | 941 | 919 | |
| 160 | 8.625 | 0.906 | 2298 | 2298 | 2298 | 2133 | 1982 | 1858 | 1817 | 1775 | 1734 | |
| 10″ | 40 | 10.75 | 0.365 | 699 | 699 | 699 | 649 | 603 | 565 | 553 | 540 | 528 |
| 80 | 10.75 | 0.594 | 1159 | 1159 | 1159 | 1075 | 999 | 937 | 916 | 895 | 874 | |
| 160 | 10.75 | 1.125 | 2289 | 2289 | 2289 | 2124 | 1974 | 1850 | 1809 | 1768 | 1727 | |
| Types | Out diameter | Sizes | Length |
| NB Sizes (in stock) | .0035” ~ 20” | 1/8″, 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, 1″, 1.25″, 1.5″, 2″, 2.5″, 3″, 4″, 5″, 6″etc | Cut to length |
| Stainless Steel 321/321H Seamless Tube (Custom Sizes) | 6.35 mm OD To 508 mm OD | As per requirement | Cut to length |
| Stainless Steel 321/321H Welded Tube (ERW Tube) (in Stock + Custom Sizes) | 6.35 mm OD To 1219 mm OD | As per requirement | Cut to length |
| Surface Finish | Internal Surface(ID) | Exterbal Surface(OD) | |||
| Roughness Average(RA) | Roughness Average(RA) | ||||
| μ inch | μm | μ inch | μm | ||
| AP | Annealed & Pickled | Not defined | Not defined | 40 or Not defined | 1.0 or Not defined |
| BA | Beight Annealed | 40,32,25,20 | 1.0,0.8,0.6,0.5 | 32 | 0.8 |
| MP | Mechanical Polish | 40,32,25,20 | 1.0,0.8,0.6,0.5 | 32 | 0.8 |
| EP | Electro Polish | 15,10,7,5 | 0.38,0.25,0.20;0.13 | 32 | 0.8 |
The surface and shape of 321/321H stainless steel pipe (6)
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Stainless steel square tubes are suitable for building decoration and structure, and have corrosion resistance and strength.
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Oval stainless steel tubing is an ideal alternative to standard round tubes for decorative applications. It is also available with slit or mill edges.
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Polished stainless steel pipes are suitable for interior decoration, such as stair railings and structural supports.
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Stainless steel seamless pipes are suitable for oil pipelines, clean pipelines, water treatment pipelines, etc.
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Stainless steel welded pipes are suitable for pipelines under conventional pressure and have ultra-thin thickness.
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Bright annealed stainless steel tubes are subjected to bright annealing process to make the tube wall achieve a bright effect.
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Daxun Alloy
Daxun provides all the stainless steel pipe data required by customers
Daxun is a trustworthy stainless steel pipe and tube manufacturer
As a professional manufacturer, Daxun ensures that all the products we produce are of high quality. Therefore, we ensure that all stainless steel tubes are certified by ISO9001, SGS, CE, OQC and more international quality standards.We also have strict quality control to ensure that the 321 Stainless Steel pipe have less defects. At Daxun, rest assured that all products are durable, high quality and high performance.
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Can I get some samples?
We can provide 321 Stainless Steel pipe samples for you to check the quality. Sample is free and you just pay the freight.
Which countries have you already exported?
We’ve exported to more than 42 countries, such as Canada, Chile, Kuwait, Germany, South Korea, Saudi Arabia, Singapore etc.
What is your MOQ?
Our MOQ is 1 ton for 321 Stainless Steel pipe.
How long is your delivery time?
Trial orders can be delivered within a week. For regular orders, it takes two weeks roughly.
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