ss304 tube
2. Standard: ASTM A269, ASTM A213, EN 10216-5, meeting strict international commercial and industrial tubing norms
3. Process: High-precision precision cold drawn or cold rolled to guarantee an ultra-smooth interior surface profile
4. Size Range: Outer Diameter from 3mm to 219mm with exact custom-calibrated thin, medium, or thick wall profiles
5. Heat Treatment: Full furnace solution annealing to fully eliminate mechanical hardness induced by cold processing
6. Surface Finish: Bright annealed (BA) mirror look, smooth acid-pickled, or outer diameter mechanically polished
7. Application: Machinery fabrication, commercial heat exchanger networks, decorative hardware, and sanitary lines
8. Service Advantage: Highly flexible production runs, rapid inquiry response, and complete material traceability provided
9. Packaging: Secure international packing with plastic bundle wrapping or nested safely in solid plywood crates
10. Key Advantage: Exceptional tensile elasticity, perfect cold-bending capability, and reliable structural life
SS304 Tube – Premium Stainless Steel Tubing Solutions for Industrial & Commercial Applications
Hebei All Trust Steel Co., Ltd manufactures high-precision ss304 tube products with an annual production capacity exceeding 15,000 tons and a 100% hydraulic testing rate. Our plant manufactures tubes with OD from 3mm to 1016mm, precisely according to international standards ASTM A213, ASTM A269 and EN 10216-5. Every product is subjected to a comprehensive furnace solution annealing and multi-stage eddy current inspection which ensures an excellent dimensional accuracy of ±0.05mm tolerance. With more than 5,000 tons of rolling inventory and agreements with more than 15 recognised steel mills, we can provide dependable material traceability with EN 10204 3.1/3.2 Mill Test Certificates for engineering projects throughout the globe.
What Is SS304 Tube and Why Choose It?
This product is the typical for austenitic stainless steel tube containing around 18% chromium and 8% nickel. This particular alloy composition gives rise to a self-healing chromium oxide layer, which provides excellent resistance to air corrosion.
This grade is chosen by industrial engineers to meet three key problems. First, it removes the on-going maintenance costs which arise from oxidation of carbon steel. Secondly, its non-reactive surface reduces contamination in pharmaceutical and food processing systems. Finally , it exhibits structural durability in high-pressure situations , in which lesser alloys are failures owing to stress corrosion cracking .
This type of tube is the best compromise between formability and long term durability whether you need seamless tubing for hydraulic applications or welded tubing for architectural applications.
Technical Specifications
| Parameter | Details |
|---|---|
| Standard | ASTM A213 / ASTM A269 / ASME SA213 / EN 10216-5 |
| Material Grade | SS304 (UNS S30400 / 1.4301) |
| Manufacturing Process | Cold Drawn / Cold Rolled / Precision Rolled |
| Outer Diameter (OD) | 1/16" – 5" (1.59 mm – 127 mm) |
| Wall Thickness (WT) | 0.010" – 0.200" (0.25 mm – 5.08 mm) |
| Length | 5.8 m / 6 m / 11.8 m / 12 m / Custom Cut |
| Surface Finish | Bright Annealed (BA) / Pickled / Mirror Polished |
| End Type | Plain End / Square Cut / Burr-Free |
| Non-Destructive Testing | Eddy Current / Ultrasonic / Hydrostatic Test |
| Mechanical Testing | Flaring / Flattening / Hardness / Tensile Test |
| Certificates | EN 10204 3.1 & 3.2 MTC / ISO 9001:2015 / CE / PED |
| Packaging | Plywood Cases / Fumigated Wooden Boxes / Waterproof Wrapping |
Superior Material Properties
Our product delivers measurable performance advantages through controlled metallurgical composition. The austenitic structure offers outstanding flexibility in cold working with a minimum tensile strength of 515 MPa and a yield strength of 205 MPa in combination with 35-40% elongation.
The high chromium concentration forms a passive surface layer which self-repairs when exposed to oxygen. The system guarantees uniform corrosion resistance in different air conditions. Thermal stability is 870°C for intermittent service, 925°C for continuous operations.
Ideal for electronic instruments which has non-magnetic characteristics, when annealed. Low thermal conductivity improves performance in thermal management applications as compared to carbon steel.
Advanced Manufacturing Process
We employ precision cold-drawing techniques using micro-tolerance mandrels to achieve exceptional dimensional concentricity. Continuous online eddy current scanning monitors wall thickness uniformity throughout production.
Every production batch undergoes full furnace solution annealing to eliminate work-hardening from cold processing. This heat treatment restores optimal ductility for complex bending and fabrication requirements.
Surface treatment choices include brilliant annealing (BA) for a mirror-like appearance, acid pickling for clean industrial surfaces or mechanical polishing to specific grit levels (180, 240, 320 grades).
Strict Quality Control
The 4-stage quality management method guaranties a consistently excellent product. Spectrographic examination of raw material chemistry for first vendor audits confirms correct chromium-nickel ratios and prevents replacement of lower 200-series grade.
Real-time production monitoring for outside diameter, wall thickness and ovality versus ASTM tolerance limits. Independent testing comprises hydrostatic pressure trials, ultrasonic fault identification and mechanical flattening tests to ensure structural integrity.
Final inspection verifies surface finish quality, product marking correctness and completion of paperwork preparation. Each shipment is supplied with Mill Test Certificates with heat number traceability and Positive Material Identification (PMI) reports.
Various Application Environments
The ss304 tube is ideal for chemical process plants where slightly acidic or alkaline fluids need sturdy pitting resistant conduits. The structural stability is needed for the operation of fluid transport systems under changeable pressure conditions in petrochemical facilities.
Food and beverage producers rely on its sanitary features in dairy processing lines and brewery pipes. Its inert surface may survive numerous Clean-in-Place (CIP) sterilisation cycles with aggressive chemical agents. Medical equipment makers use it for parts of surgical tools that need to be sterilised repeatedly at high temperatures.
Architectural uses include structural supports and handrails for coastal applications where salt-air exposure needs long term corrosion resistance without protective coatings. Automotive engineers require it for exhaust systems and hydraulic lines that need to withstand significant vibration.
Customization Capabilities
We accommodate extreme dimensional precision requirements, offering micro-diameter calibrations down to 1/16 inch alongside metric sizing options. Custom length cutting eliminates material waste for your specific project needs.
Value added processing services offered include laser hole drilling, slot cutting, pipe bending, threading and end bevelling. Surface treatments vary from satin finishing to 8K mirror polishing. Colour PVD coating solutions satisfy ornamental architectural criteria.
Minimum order quantities are flexible, supporting prototype development and large volume manufacturing runs. A mixed container loading groups together pipes, related fittings, flanges and valves to be sent efficiently.
Logistics & Professional Packaging
Export packaging safeguards the integrity of the goods throughout international transportation. Surface scratching is avoided with individual plastic end caps and protecting sleeves. Heavy-duty woven bundles are structurally stable during handling when they are steel strapped.
The wooden cases are not fumigated and fulfil international phytosanitary requirements. The waterproof covering protects against moisture damage and salt corrosion during maritime shipment. Packaging is designed for break-bulk and container transportation.
We have a worldwide logistics network based on the ports of Shanghai, Ningbo, Tianjin, Qingdao and Shenzhen. Trade terms available: FOB, CFR, CIF, DDP as per your purchase option. Stock orders ship in 3-5 days, bespoke requirements delivery in 15-20 days.
FAQ
Q：What foundational material advantages define the mechanical load limits of this universal product?
A：Built from top-tier austenitic stainless steel inputs, this product delivers robust load-bearing safety parameters, trusted anti-rust performance, and remarkable cold-working flexibility for complex routing paths.
Q：How does your factory achieve the exceptional circumference concentricity required for precision layouts?
A：The tube is precision cold-drawn over micro-tolerance mandrels, integrating continuous online eddy current scans and dimensional laser tracking to achieve exceptional inner and outer dimension concentricity.
Q：What mechanical deformation testing is contractually performed to ensure the structural ductility of this batch?
A：Representative production coupons are subjected to severe destructive mechanical flattening trials, cross-sectional flare expansions, and precise Rockwell or Brinell hardness monitoring.
Q：What micro-dimensional customization spectrums can be requested to satisfy diverse client blueprints?
A：We support extreme calibration versatility, accommodating micro-diameter calibrations down to 1/16 inch, tailored metric sizing options, and clean deburred square-cut plain ends.
Q：How is this stainless steel tubing packaged to prevent internal corrosion or debris accumulation during transit?
A：Every tube is thoroughly passivated, bundled with protective strapping slings, wrapped inside individual plastic bag sleeves, and packed into secure plywood boxes.
Contact Us
Ready to source premium-grade ss304 tube stainless steel tubing for your next project? Contact our engineering team at info@hballtrust.com for technical specifications, quotations, and material recommendations tailored to your application requirements.
