astm a269 tp304 tubing
2. Standard: ASTM A269 / ASME SA269, governing high-precision nominal-wall tubing for general engineering service
3. Process: Advanced multi-pass precision cold drawing or rolling, ensuring highly uniform wall concentricity
4. Size Range: Fractional and metric outside diameters from 1/4" to 5" with strict decimal gauge control
5. Heat Treatment: Full solution annealing followed by rapid cooling to optimize core microstructural density
6. Surface Finish: Clean uniform pickled matte, bright annealed (BA), or exterior mechanical polished available
7. Application: Food and beverage processing loops, commercial refrigeration coils, evaporators, and general fluid transfer
8. Service Advantage: Large stock available for immediate container loading, flexible small-batch custom production
9. Packaging: Hexagonal ocean bundles bound with strong steel strapping, equipped with protective plastic end caps
10. Key Advantage: Exceptional balance of universal atmospheric rust resistance, perfect cold-bending, and high cost-efficiency
ASTM A269 TP304 Tubing – Precision Stainless Steel Solution for Industrial Fluid Systems
Hebei All Trust Steel Co., Ltd manufactures premium astm a269 tp304 tubing engineered to ASTM A269/ASME SA269 standards, delivering exceptional corrosion resistance and dimensional precision for critical industrial applications. We produce precision cold drawn tubing from a traditional 18/8 chromium-nickel austenitic matrix including 18.0-20.0% chromium and 8.0-11.0% nickel for enhanced resistance to air oxidation. Our yearly manufacturing capacity is above 15,000 tons and our hydraulic testing rate is 100%. We have innovative multi-pass cold drawing techniques to ensure rigorous tolerances of ±0.05 mm. All tubes are fully automated eddy current scanned and hydrostatically pressure tested to provide you with zero defect walls for your instrumentation, food processing and chemical transfer systems.
What Makes Our TP304 Stainless Steel Tubing Stand Out
The product is the industry standard for seamless and welded austenitic stainless steel tube for general corrosion-resisting duty in low and high temperature settings. This iconic 18/8 stainless steel formula, designated as TP304, overcomes key problems in high-pressure fluid containment and contamination prevention.
Our Tubing handles your most critical operating issues. You want dependable materials . That is , you want materials that are resistant to oxidation in the atmosphere yet still mechanically strong during heat cycling . You need leak-free connections in salt-spray situations and quick sanitization for food-grade applications.
This universal tubing has a sweet spot between cost-efficiency and performance, replacing less durable carbon steel or copper in systems where environmental resistance is non-negotiable. Its chromium-nickel matrix produces a thick, self-healing chromium-oxide passive film that offers long-lasting protection against industrial oxidation.
Technical Specifications & Parameters of ASTM A269 TP304 Tubing
| Parameter | Specification |
|---|---|
| Standard | ASTM A269 / ASME SA269 / ASTM A213 / EN 10216-5 |
| Grade | TP304 (UNS S30400 / 1.4301) |
| Process | Cold Drawn / Cold Rolled / Seamless / Welded |
| Outer Diameter | 1/4" - 5" (6.35 mm - 127 mm) |
| Wall Thickness | 0.010" - 0.200" (0.25 mm - 5.08 mm) |
| Length | 5.8m / 6m / 11.8m / 12m / Coiled / Custom |
| Surface Finish | Bright Annealed (BA) / Pickled / Mirror Polished |
| Tensile Strength | Min. 515 MPa (75 ksi) |
| Yield Strength | Min. 205 MPa (30 ksi) |
| Elongation | Min. 35% |
| Chromium Content | 18.0-20.0% |
| Nickel Content | 8.0-11.0% |
| Carbon | Max. 0.08% |
| Testing | Eddy Current / Hydrostatic / Ultrasonic |
| Certificates | EN 10204 3.1 & 3.2 MTC / ISO 9001:2015 |
| Inspection | SGS / BV / TUV / DNV Approved |
Superior Performance Advantages
Premium Material Composition
You need something that can function consistently under pressure in your operations. Our product is based on a traditional chromium-nickel austenitic matrix which has good structural ductility across broad temperature ranges.
The balanced composition of 18 percent chromium and 8 percent nickel offers optimal safety margins to chemicals or routeing fluids. This metallurgical structure is non-magnetic in the annealed condition, and exhibits good toughness even at cryogenic temperatures down to -196°C.
Rigorous Production Quality Control
We extrude our tubing from top-tier billets through precision cold drawing processes. Every tube receives vertical solution heat treatment followed by rapid cooling to optimize core microstructural density.
Our 100% hydraulic testing rate eliminates defects before shipment. Automated volumetric scanning verifies absolute perimeter thickness uniformity. This intensive quality process guarantees that your systems operate without unexpected failures.
Comprehensive mechanical testing includes flaring tests, flange tests, and hardness verification (maximum 90 HRB) to ensure the material won't crack during installation or become too brittle for field bending.
Flexible Customization Options
You receive tubing perfectly adapted for your system requirements. We support tight fractional diameter calibrations from 1/4" to 5" OD, with wall thicknesses ranging from 0.010" to 0.200".
Choose between fixed straight segments for standard installations or continuous coiled tubing configurations wrapped on secure wooden spools for extensive field routing. This flexibility minimizes on-site welding and reduces potential leak points.
Our advanced processing capabilities include precision cutting, laser drilling, beveling, threading, and multiple surface finishes including 8K mirror polishing and satin finishing.
Diverse Industrial Applications
Instrumentation & Control Systems
Your offshore platforms and process facilities require precision-dimension tubing for hydraulic and pneumatic control lines. Our tubing provides leak-free compression fitting connections even in salt-spray environments.
The close dimensional tolerances make the assembly compatible with instrumentation fittings without expensive field adjustments.
Food and Beverage Processing
Sanitary applications need very pure surfaces to prevent bacteria development. Our bright annealed and mechanical polish finishes exceed demanding Ra (Roughness Average) specifications for dairy, brewing and pharmaceutical equipment.
Because the material won’t react with organic chemicals and is simple to sanitise, there’s no risk of product contamination in the processing cycles.
Chemical & Petrochemical Systems
Heat exchangers, condensers, and process fluid lines benefit from the material's ability to handle mildly corrosive cooling water and chemical process fluids. The tubing maintains structural integrity under thermal cycling and varying pressure conditions.
Commercial Refrigeration
Evaporator coils and refrigerant lines rely on astm a269 tp304 tubing for the material's universal atmospheric rust resistance and perfect cold-bending characteristics for efficient system layouts.
Strict Quality Assurance Process
We enforce a comprehensive four-stage verification protocol:
Stage 1: Material Verification
Spectrographic analysis confirms chromium, nickel, molybdenum, and carbon content. Complete heat number traceability ensures material authenticity.
Stage 2: Process Monitoring
Real-time dimensional inspection tracks wall thickness and outer diameter during production. Heat treatment cycles are supervised to guarantee proper microstructure.
Stage 3: Non-Destructive Testing
Every single piece clears continuous automated eddy current scanning combined with high-pressure hydrostatic leakage validation. This dual-testing approach guarantees absolute zero-defect walls.
Stage 4: Final Documentation
You will be provided with EN 10204 3.1 Mill Test Certificates showing chemical composition and mechanical test results. We welcome third party inspection from SGS, TUV or Bureau Veritas which gives further confidence.
FAQ
Q：In what specific fluid transport networks is this classic product ideally deployed?
A：This universal tubing is optimized for standard chemical processing lines, factory utility media transport, instrumentation control loops, and liquid food or beverage machinery setups facing medium corrosion risks. Its balanced composition makes it the go-to choice for general service applications.
Q：How does the metallurgical structural integrity of this tube protect against aggressive atmospheric degradation?
A：The premium chromium-nickel matrix builds a dense, self-healing chromium-oxide passive film that acts as an enduring shield against environmental moisture and generalized industrial oxidation. This natural protection eliminates the need for additional coatings.
Q：What non-destructive testing (NDT) matrix is enforced to validate the structural safety of these lines?
A：Every single piece must clear continuous automated internal eddy current scanning lines combined with high-pressure hydrostatic leakage pressure validation to guarantee absolute zero-defect walls. This dual approach catches both surface and subsurface imperfections.
Q：Can this TP304 tubing line be customized into ultra-long layouts to minimize field connection points?
A：Yes, we can supply this material in exact fixed straight segments or continuous ultra-long coiled tubing configurations wrapped on secure wooden spools for extensive field routing. This approach reduces welding costs and potential leak points.
Q：Are your product lots approved by independent international auditing frameworks?
A：Our entire instrumentation tube line fully adheres to ISO 9001:2015 benchmarks and welcomes independent witness audits by international inspection bodies including SGS, TUV, and Bureau Veritas (BV). Compliance documentation is provided with every shipment.
Contact Us
Ready to upgrade your fluid systems with precision-engineered astm a269 tp304 tubing? Contact our technical team at info@hballtrust.com for detailed specifications, competitive quotes, and fast delivery options tailored to your project requirements.
