| Customization: | Available |
|---|---|
| Type: | Stainless Steel Pipes |
| Standard: | ASTM, AISI, GB, JIS, EN |
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| Stainless Steel Seamless pipe Material | 201 304 316 321 317 347 309 310S 2205 2507 410 420 409 430 446 436 904L |
| Tube Standards | ASTM A213, ASTM A249, ASTM A269, ASME SA213, ASME SA249, ASME SA269, EN 10216-5 TC1 / TC2, PED 97/23/EC, AD 2000, NACE MR0175/ISO 15156 |
| Stainless Steel Seamless Pipes & Tubes Manufacturing Specifications | ASME B36.19 |
| ASTM A213 | |
| ASTM A312 | |
| ASTM A269 | |
| ASTM A632 | |
| ASME SA213 | |
| NFA 49-117 | |
| BS 10216 | |
| Or as per customer specifications | |
| Seamless Tube Size | 3.35 mm OD To 101.6 mm OD |
| Welded Tube Size | 6.35 mm OD To 152 mm OD |
| Stainless Steel Seamless Tube Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| ERW Pipe Wall thickness | 0.020″ -0.220″, (special wall thicknesses available) |
| Pipe Length | Single Random, Double Random, Standard & Cut length |
| Rectangular Welded Pipes Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| AMS 5573 Tube Form | Straight, Coiled, Seamless, Round Pipes/ Tubes, Square Pipes/ Tubes, Rectangular Pipe/ Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes, Straight or 'U' bent Tubes, Hollow, LSAW Tubes Etc. |
| Square Pipes Type | Seamless, ERW, EFW, Welded, Fabricated |
| Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Stainless Steel Tube Electropolished | (EP) Electropolished for Ultra High Purity Systems |
| Pipe Non-Electropolished | (BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems |
| Stainless Steel Seamless Tube & Pipe I.D. Surface Finish Options | 5, 7 & 10 µin. Ra |
| Rectangular tubing JIS | 8A to 250A |
| Tube Tolerances | In accordance with: ASTM: A269 & A632, JIS: G 3459 |
| stainless steel tubing End | Plain End, Beveled End, Treaded, Ends are suitable for orbital welding |
| Tube Marking | Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| stainless steel tubing Application | Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
| welded round tubes Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Seamless/ welded tube Specialize in | Stainless Steel Capillary Tube & Other Odd Size |
| Stainless Steel Heat Exchanger & Condenser Tubes | |
| Stainless Steel Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition | |
| Stainless Steel hydraulic tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition | |
| welded square tubes Marking & Traceability | Each Stainless Steel Tubing is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end. |
| stainless steel tubing Test Certificate | Manufacturer Test Certificate according to EN 10204 3.1 B |
| Laboratory Test Certificate from Govt. Approved Lab. | |
| Under Third Party Inspection | |
| 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 |
Our tubular products are meticulously drawn from premium tube hollows, crafted through advanced piercing of billets or cutting-edge hot extrusion processes. Seamless tubing is ideal for applications demanding heavy diameter-to-wall ratios, offering remarkably precise outside dimensional tolerances.
Our forming capabilities are unparalleled, featuring state-of-the-art extrusion and cold working technologies for tube and pipe production. We also boast one of the world's largest pilger mills and unique hydroforming processes for manufacturing superior fittings.
As a vertically integrated manufacturer, Daxun offers a complete one-stop-shop solution, capable of managing entire projects or specific machining tasks. Our comprehensive services include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and other specialized services.
Equipped with vertical and horizontal presses ranging from 12,000 to 35,000 tons, Daxun boasts the world's most comprehensive pipe extrusion capabilities. These enable us to produce the longest lengths and largest diameter pipes in the industry.
At Daxun, our state-of-the-art testing laboratories and advanced equipment guarantee that our stainless steel materials meet the highest standards of actual weight and superior quality before shipment. Our dedicated quality control team ensures meticulous and comprehensive inspection at every production stage.
Our commitment to excellence extends beyond the initial transaction. Even after your orders have been delivered, Daxun remains dedicated to providing outstanding after-sales support. We offer continuous assistance and warranty services to ensure your complete satisfaction.
| ASTM A312 | ||
| NPS Designator | Tolerance, % from Nominal | |
| Over | Under | |
| ⅛ to 2½ incl., all t/D ratios | 20 | 12.5 |
| 3 to 18 incl., t/D up to 5% incl. | 22.5 | 12.5 |
| 3 to 18 incl., t/D > 5% | 15 | 12.5 |
| 20 and larger, welded, all t/D ratios | 17.5 | 12.5 |
| 20 and larger, seamless, t/D up to 5% incl. | 22.5 | 12.5 |
| 20 and larger, seamless, t/D > 5% | 15 | 12.5 |
| ASTM A269 | ||||||
| Group | Size, Outside Diameter, in. | Permissible Variations in Outside Diameter, in. (mm) | Permissible Variations in Wall Thickness, % | Permissible Variations in Cut Length, in. (mm) | Thin Walled Tubes | |
| Over | Under | |||||
| 1 | Up to ½ | ±0.005(0.13) | ±15 | ⅛(3.2) | 0 | … |
| 2 | ½ to 1½, excl | ±0.005(0.13) | ±10 | ⅛(3.2) | 0 | less than 0.065 in. (1.65 mm) nominal |
| 3 | 1½ to 3½, excl | ±0.010(0.25) | ±10 | 3/16(4.8) | 0 | less than 0.095 in. (2.41 mm) nominal |
| 4 | 3½ to 5½, excl | ±0.015(0.38) | ±10 | 3/16(4.8) | 0 | less than 0.150 in. (3.81 mm) nominal |
| 5 | 5½ to 8, excl | ±0.030(0.76) | ±10 | 3/16(4.8) | 0 | less than 0.150 in. (3.81 mm) nominal |
| 6 | 8 to 12, excl | ±0.040(1.01) | ±10 | 3/16(4.8) | 0 | less than 0.200 in. (5.08 mm) nominal |
| 7 | 12 to 14, excl | ±0.050(1.26) | ±10 | 3/16(4.8) | 0 | less than 0.220 in. (5.59 mm) nominal |
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