| Customization: | Available |
|---|---|
| Type: | Stainless Steel Pipes |
| Standard: | ASTM, AISI, GB, JIS, EN |
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| 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 |
Type 321 stainless steel is an advanced austenitic steel. It shares many of the same properties as Type 304 but boasts 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 excels in resisting oxidation and corrosion, thanks to the presence of titanium. Key benefits of titanium in 321 stainless steel include: Prevention of harmful carbide precipitation in the weld's heat-affected zone (HAZ), partial protection against intergranular corrosion, and reduced embrittlement in high-risk weld areas. 321H stainless steel is prevalent in applications where parts are heated to carbide precipitation temperatures (800°F-1500°F) and exposed to corrosive atmospheres. 321 stainless steel is similar to 304 stainless steel but contains more nickel and is stabilized with titanium. This 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 minimizing chromium consumption near the grain borders during exposure to critical temperatures. This grade hardens well with cold working, is easily weldable, and rarely requires post-weld annealing to maintain its outstanding performance in a variety of corrosive conditions.
Our forming capabilities feature cutting-edge extrusion and cold working assets for tube and pipe production, including one of the world's largest pilger mills and a unique hydroforming process for manufacturing fittings.
As a fully vertically integrated manufacturer, we provide a one-stop solution for all your needs, from entire projects to specific machining jobs such as Straightening, Drilling, Honing, Trepanning, Cutting, Testing, Boring, Machining, Laser Welding, Polishing, Turning, and a range of Specialized Services.
Equipped with vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun boasts the most comprehensive pipe extrusion capabilities globally. This enables us to produce the longest lengths and largest diameter pipes in the industry.
Chemical Composition of 321 Stainless Steel Pipe: The 321 stainless steel pipe is crafted with precision and high-grade materials to ensure superior performance. Composed of a blend of chromium, nickel, and titanium, this alloy offers excellent corrosion resistance and durability, making it ideal for various demanding applications.
| 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 |
| *** (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 | 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/ASTE : UNS S32100
Alloy 321/H is easily welded and processed using standard shop fabrication practices.
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