304 Stainless Steel Seamless Pipes 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 |
304 Seamless Aerospace Tubing | AMS 5564, AMS 5565, AMS 5567, AMS 5569, AMS 5695 (Canceled & non-current specs include AMS-T-6845, Mil-T-6845, AMS-T-8504, Mil-T-8504, AMS-T-8506, Mil-T-8506) |
WELDED & DRAWN 304 Stainless Steel Aerospace Tubing | AMS 5564, AMS 5565, AMS 5566, AMS 5567, AMS 5569 (Canceled & non-current specs include AMS-T-6845, Mil-T-6845, AMS-T-8504, Mil-T-8504, AMS-T-8506, Mil-T-8506) |
ASTM A312 Stainless Steel Pipe Typical Manufacturing Specifications | ASTM A213,ASTM A312,ASME B36.19,AMS 5647,AMS 5566,AMS 5569,AMS 6845,BS 10216 Pt 5,ASTM A269,BS 3605 Pt 1,ASTM A632,NFA 49-117,NFA 49-217,Mil-T 8504,Mil-T 8606,or as per customer specifications. |
Austenitic Stainless Steel 304 Pipes Seamless Tube Size | 3.35 mm OD To 630 mm OD |
304 Stainless Steel Welded Tube Size | 6.35 mm OD To 1219 mm OD |
ASTM A312 TP 304 Stainless Steel Seamless Pipes Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
SS 304 Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
Stainless Steel 304 Seamless Pipes Wall thickness | 0.020″ -0.220″, (special wall thicknesses available) |
SS 304 tube Length | Single Random, Double Random, Standard & Cut length |
Stainless Steel UNS S30400 ERW Pipes Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
Stainless Steel DIN 1.4301 Pipes Form | 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. |
304 Stainless Steel Welded Pipe Type | Seamless, ERW, EFW, Welded, Fabricated |
Electropolished | (EP) Electropolished for Ultra High Purity Systems |
Non-Electropolished | (BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems |
I.D. Surface Finish Options | 5, 7 & 10 µin. Ra |
304 Stainless Steel Round Pipe JIS | 8A to 250A |
304 Stainless Steel Square Pipe Tolerances | In accordance with: ASTM: A269 & A632, JIS: G 3459 |
304 stainless steel tubing End | Plain End, Beveled End, Treaded, Ends are suitable for orbital welding |
ASTM A312 TP 304 Stainless Steel Marking | All 304 Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
304 stainless steel tubing Application | Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
Specialize in | Stainless Steel 304 Capillary Tube & Other Odd Size |
Stainless Steel 304 Heat Exchanger & Condenser Tubes | |
Stainless Steel 304 Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition | |
ASTM A312 TP304 tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition | |
Marking & Traceability | Each Stainless Steel 304 Tubing is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end. |
Test Certificate | Manufacturer Test Certificate according to EN 10204 3.1 B |
Laboratory Test Certificate from Govt. Approved Lab. | |
Under Third Party Inspection | |
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 |

Stainless steel tubular products made from stainless steel strip are roll-formed and fusion-welded along the longitudinal seam. The welding process used by Daxun does not use any filler metal during the welding process.
Stainless steel tubular products are rolled and then re-drawn to final size. Rolling and drawing is ideal for producing thick walled, large diameter tubes that cannot be rolled directly to size but still offer cost savings over stainless steel seamless tubes. All stainless steel drawn tubes are bright annealed.


Stainless steel tubular products are drawn from the hollow section of the tube, which is made by piercing or hot extrusion processes. Stainless steel seamless tube is ideal for very large diameter to wall thickness ratios and has very good external dimensional tolerances.

Daxun stainless steel pipe manufacturing capabilities
Forming capabilities include state-of-the art extrusion and cold working assets for manufacturing tube and pipe products, one of the world's largest pilger mills, and a unique hydroforming processes to manufacture fittings.
Daxun's pipe processing capabilities
As a vertically integrated manufacturer, we offer a one-stop shop and we have the ability to handle anything, whether it's an entire project or just a machining job.Straightening,Drilling,Honing,Trepanning,Cutting,Testing,Boring,Machining,Laser Weld,Polishing,Turning,Specialized Services.


Bigger, Better Pipe Solutions
With vertical and horizontal presses ranging from 12,000 tons to 35,000 tons, Daxun has the most comprehensive pipe extrusion capabilities in the world. Capabilities enable us to manufacture the longest lengths and largest diameter pipes in the industry.
Daxun supplies the power generation market with ductwork, boiler tubes, main steam tubes, thermal reheat tubes, flue gas desulfurization units and other products for nuclear, coal-fired, renewable energy and combined cycle applications.


A: We can offer you general steel types like 310S, 316L,304.304L.201,904L, 316H, 316,316L 300and
400 series, and duplex stainless steel like 2205, 2304,2101,2507,etc. 904L, 800H, 600H high-nickel alloy.
Q2. Can you produce the products according to my own drawings?
Yes, we can produce the products according to your drawings that will be most satisfy you.
Q3. How does your factory do regarding quality control?
Quality is a priority. We always attach great importance to quality controlling from the beginning to end.
Q4. Can I request to change the form of packaging and transportation?
Yes, We can change the form of the packaging and transportation according to your request,
but you have to bear their own costs incurred during this period and the spreads.
Q5. How does your factory do regarding quality control?
Quality is a priority. We always attach great importance to quality controlling from the beginning to end.
Q6. How long is the delivery time?
A: 7~20 working days after confirming the payment.
If the order is urgent, we will push our workshop finish in advance.
Q7. What is your Payment?
A: 100% T/T advance, Western Union (For Small Order)
B: 30% T/T and balance 70% before the shipment
C: 100% Irrevocable LC at sight (For Big Order)
Q8: Can you make DDQ ( Deep Drawing Quality)?
A: Yes, we can. Our material can be used for stainless steel pots, stainless steel sinks, stainless steel bowls etc. U can tell us your usage, and we will adjust the mechanical propertise to meet your requirement.
Q9: How to get a sample?
A: FREE samples are available for your checking and testing.If you require for a small piece,we can afford courier cost,it depends.
Q10:Which country have you exported to?
A:Until now,we have exported stainless steel material to following countries: Vietnam,Thailand,Turkey,Russia,Maroc,Korea,India,Pakistan,UAE,Ukraine and so on.
Q11: How to visit your company?
A:By flight to Guangzhou Baiyun International airport,then we will pick you up.