astm a312 tp304 pipe
2. Standard: ASTM A312 / ASME SA312, the globally recognized specification for high-temperature and corrosive service
3. Process: Heavy-duty seamless hot piercing or automatic straight-seam welded options without filler metal
4. Size Range: Nominal Pipe Size (NPS) 1/8" to 30", wall thickness profiles covering Schedule 5S up to Schedule XXS
5. Heat Treatment: Full solution annealing at a minimum temperature of 1040°C followed by rapid water/air quenching
6. Surface Finish: Standard solution annealed and pickled (SA&P), industrial descaled matte, or smooth shot-blasted
7. Application: Oil and gas refineries, petrochemical processing towers, municipal industrial pipelines, and boiler systems
8. Service Advantage: Sourced from tier-one billets, 100% hydrostatic and eddy current tested, full MTC 3.1 certification
9. Packaging: Hexagonal ocean bundles wrapped tightly with waterproof plastic sleeves and secured with steel strapping
10. Key Advantage: Engineered to endure high internal pressures and severe thermal cyclical stress with excellent cost economy
ASTM A312 TP304 Pipe – Premium Industrial Stainless Steel Piping Solution for High-Performance Fluid Systems
Hebei All Trust Steel Co., Ltd manufactures astm a312 tp304 pipe engineered to deliver exceptional mechanical strength and reliable corrosion resistance across diverse industrial fluid transport applications. Our TP304 pipe systems are solution-annealed at temperatures above 1040°C and immediately quenched to provide full stress relief with an annual manufacturing capacity of over 15,000 tons and 100% hydraulic testing of every unit. These austenitic chromium-nickel pipes are produced according to ASTM A312 and ASME SA312 with full compliance for nominal diameters ranging from 1/8" to 30" and wall schedules from 5S to XXS. Full EN 10204 3.1 certification is provided with complete traceability of heat numbers.
Why Choose Our ASTM A312 TP304 Pipe
Better Material Composition & Corrosion Resistance
Your industrial processes need pipe materials that can survive the constant assault of moisture, mild acids and climatic conditions. Our product has a balanced chromium (18.0–20.0%) and nickel (8.0–10.5%) concentration that forms a strong passive oxide layer to withstand general corrosion in aquatic settings.
This austenitic structure offers outstanding ductility and formability. You like dependable performance in food processing lines, municipal water distribution and chemical transfer systems.
Precision Manufacturing Without Compromise
Every pipe undergoes strict dimensional control and non-destructive testing. Utilising modern hot-finishing and cold-drawing methods, we achieve tight tolerances on OD and wall thickness within ±0.05 mm.
Our manufacturing protocol includes:
- 100% eddy current testing for welded variants
- Full hydrostatic pressure testing to verify leak-proof integrity
- Ultrasonic inspection for seamless pipe verification
- Complete PMI analysis to confirm alloy composition
You receive pipes that meet or exceed pressure ratings specified in ASME B31.3 piping codes.
Technical Specifications Table
| Parameter | Specification |
|---|---|
| Standard | ASTM A312 / ASME SA312 / EN 10216-5 |
| Material Grade | TP304 (UNS S30400 / 1.4301) |
| Manufacturing Type | Seamless & Welded |
| Outer Diameter Range | 1/8" – 30" (13.7 mm – 609.6 mm) |
| Wall Thickness | SCH 5S to SCH XXS (0.5 mm – 50 mm) |
| Standard Length | 5.8 m / 6 m / 11.8 m / 12 m / Custom |
| Heat Treatment | Solution Annealed (≥1040°C) + Rapid Quenching |
| Surface Finish | Annealed & Pickled / Bright Annealed / Polished |
| End Configuration | Plain / Beveled / Threaded (NPT, BSPT) |
| Testing Methods | Hydrostatic / Eddy Current / Ultrasonic / RT |
| Certification | EN 10204 3.1 / 3.2 MTC, ISO 9001:2015 |
| Third-Party Inspection | SGS / BV / TUV / DNV Approved |
Key Product Advantages
Material & Functional Superiority
Formulated with standard austenitic chromium-nickel chemistry, this product provides robust mechanical load limits and trusted corrosion barriers during the transmission of everyday industrial fluids and utility media. You gain reliable protection against oxidation, scaling, and surface pitting in ambient to moderately elevated temperature ranges.
The balanced alloy design ensures excellent weldability without the need for pre-heating or post-weld heat treatment in most applications. This reduces your installation time and labor costs significantly.
Production Quality & Testing Rigor
Crafted strictly to the dual parameters of ASTM A312 and ASME SA312 engineering compliance codes, utilizing full solution annealing and descaling heat treatments to release structural thermal stress completely. Our thermal processing eliminates residual strain from forming operations, ensuring dimensional stability throughout service life.
Every production batch undergoes destructive testing on representative samples. Mechanical properties including tensile strength, yield strength, elongation, and hardness are verified against specification requirements before shipment authorization.
Versatile Customization & Dimensional Sizing
We support wide scheduling flexibility across multiple piping frameworks, accommodating fixed or double random length structures, customized internal deburring, and flexible third-party verification options from SGS or TUV. Whether you need beveled ends for butt welding, threaded connections for mechanical joining, or polished surfaces for sanitary applications, our processing capabilities deliver precisely to your project blueprints.
Our OEM services extend to laser hole drilling, slot cutting, pipe bending, and custom surface treatments. You receive solutions tailored to your exact engineering specifications.
Primary Industrial Applications
Your astm a312 tp304 pipe serves critical roles across multiple sectors:
Oil & Gas: For use in low pressure collection lines, tank farm pipework and refinery utility systems transporting non-corrosive hydrocarbons and process water.
Petrochemical Processing: Ideal for amine regeneration systems, cooling water circuits and instrument air distribution networks requiring moderate corrosion resistance.
Municipal & Industrial Water Systems: Popular for potable water transmission, waste water treatment facilities and in fire protection sprinkler systems for its sanitary and corrosion resistant qualities.
Food & Beverage Manufacturing: The backbone of sanitary pipe systems for breweries, dairy factories, juice processing facilities where cleanliness and material purity are of utmost importance.
Pharmaceutical Production: Contamination-free fluid transfer for clean rooms and process vessels needing FDA-compliant materials
Safe Packaging & International Shipping
We have a complete export packing procedure to ensure your pipes arrive in pristine condition. The pipes are bundled together with unique protective jackets and plastic end covers.
Hexagonal bundles are fastened with high grade steel strapping and then enclosed in waterproof woven bags. For larger purchases, fumigation-free hardwood containers are used for shipment to help minimise surface damage during international transportation.
We operate from all the main Chinese ports including Shanghai, Ningbo, Tianjin and Qingdao. Flexible trading terms - FOB, CFR, CIF and DDP - to suit your logistical needs.
Standard stock orders ship within 3–5 days. Custom specifications are fulfilled in 15–20 days with priority scheduling available.
FAQ
Q：What distinct metallurgical properties enable this product to endure general industrial exposure?
A：Formulated with standard austenitic chromium-nickel chemistry, this pipe provides robust mechanical load limits and trusted corrosion barriers during the transmission of everyday industrial fluids and utility media. The passive chromium oxide layer reforms automatically when scratched, maintaining protection throughout service.
Q：What advanced heat treatment processes secure the microstructural uniformity of this pressure pipe line?
A: The ASTM A312 specification has rigid requirements that the piping is built to, and the piping is subjected to full solution annealing and descaling heat treatments in the programme controlled furnaces to totally relieve structural thermal stress. Fast water or air quenching inhibits the formation of carbides which preserves the corrosion resistance throughout the whole cross-section.
Q：What destructive quality verification benchmarks must this astm a312 product line successfully pass?
A：Representative batch coupons are subjected to mechanical destructive flattening trials, cross-sectional flare expansions, and precise Rockwell or Brinell hardness monitoring to lock in compliant structural safety. Tensile testing confirms minimum yield strength of 205 MPa and ultimate tensile strength of 515 MPa.
Q：What dimensional customization scales can be requested to match specific plant engineering blueprints?
A：We can provide considerable flexibility in scheduling for numerous piping frameworks. Nominal pipe diameters (NPS) we can accommodate range from 1/4" to 48" spanning schedules such as SCH 10S, SCH 40S and SCH 80S. We also provide flexible custom cut lengths. Special Tolerances and End Preparations Offered Upon Request
Q: Do you have your product lots certified by reputable international auditing companies?
A：Our whole pressure pipe line is completely compliant with the ISO 9001:2015 standard and is open to independent witness inspections by certified third-party bureaux such as SGS, TUV, and Bureau Veritas (BV). Full material traceability paperwork is included with every shipment.
Contact Us Today
Ready to source reliable astm a312 tp304 pipe for your next project? Reach out to our technical team at info@hballtrust.com for detailed specifications, competitive quotations, and expert material selection guidance.
