If you are seeking high-quality stainless steel round tubes that combine precision, hygiene, corrosion resistance, and global regulatory compliance, selecting the appropriate standard whether EN 10296-2, ASTM A554, ASTM A312, or ASTM A270 is critical; it will directly impact your project's performance, safety, and long-term cost-effectiveness.
With over 18 years of deep industry expertise, GNEE has established itself as a trusted global supplier of stainless steel tubing. Our products are exported to more than 50 countries and regions worldwide, with an annual shipment volume exceeding 5,000 tons. Backed by ISO 9001 quality system certification, PED certification, and strong endorsements from authoritative third-party inspection agencies-such as SGS, BV, and TÜV-we provide fully traceable, premium-grade materials that comprehensively meet the rigorous demands of diverse sectors, including construction, food processing, pharmaceuticals, petrochemicals, and mechanical engineering.
The following are common applications for the relevant standards:
EN 10296-2: Stainless steel tubes for structural and mechanical strength
ASTM A554: Stainless steel tubes for decorative and architectural finishes
ASTM A312: Stainless steel tubes for pressure resistance and corrosion resistance
ASTM A270: Stainless steel tubes for sanitary and hygienic applications
EN10296-2 / A554 / A312 / A270 Stainless Steel Round Tube Specifications
| Feature | ASTM A312 | ASTM A554 | ASTM A270 | EN 10296-2 |
| Primary Purpose | Industrial / Pressure Pipe | Mechanical / Structural | Sanitary / Hygienic | General Engineering |
| Type | Seamless or Welded (Heavy Wall) | Welded (Ornamental) | Seamless or Welded | Welded (Circular) |
| Common Grades | 304/304L, 316/316L, 321, 310S | 201, 304/304L, 316/316L, 409L, 430 | 304/304L, 316/316L | 1.4301, 1.4404, 1.4512 (409L), 1.4541 |
| Outer Diameter (OD) | 10.3mm – 914.4mm (1/8" to 36") | 6.0mm – 406.4mm | 12.7mm – 203.2mm (1/2" to 8") | 6.0mm – 2500mm |
| Wall Thickness (WT) | SCH 5S, 10S, 40S, 80S | 0.3mm – 8.0mm | 0.89mm – 3.40mm | 0.5mm – 40mm |
| Surface Finish | Annealed & Pickled (No. 1 / Gray) | Polished (Grit 180, 240, 320, 400, 600, Mirror) | Polished (Internal Ra < 0.5μm or 0.8μm) | As Welded, Pickled, or Polished |
| Length | 6m, 12m (Single/Double Random) | 5.8m, 6.0m, or Custom | 6.0m / 6.1m | 6.0m or Custom |
| Testing Required | Hydrostatic, Eddy Current, Flattening, Bending | Flare, Flange, Reverse Flattening | Flare, Flange, Reverse Bend, Roughness Test | Tensile, Leak Tightness (Eddy Current) |
If you have project-specific requirements for EN10296-2 / A554 / A312 / A270 Stainless Steel Round Tubes, we welcome your orders. GNEE maintains a substantial inventory of best-selling products for you to choose from. These tubes are available in both seamless and welded forms; for detailed chemical composition specifications or to request free samples, please contact our factory immediately. We offer competitive pricing and exceptional service.
Packaged using waterproof paper and steel strapping, our products meet standard export requirements for sea freight and are suitable for various modes of transport; alternatively, packaging can be customized according to client specifications.
Packaging
Standard Export Packaging for Stainless Steel Products
1. Polished surface finish; 2. Bundled packaging;
3. Wooden crate packaging; Wooden pallet packaging;
4. Containerized or bulk shipment; 5. Customized according to client requirements.
What are the main differences between ASTM A312 and ASTM A554?
ASTM A312 applies to industrial pressure piping (used for conveying chemicals, steam, or water) and requires solution annealing and hydrostatic testing. In contrast, ASTM A554 applies to mechanical or ornamental tubing (such as handrails, furniture, exhaust pipes, etc.), where aesthetics and strength are often considered more important than pressure-bearing capabilities.
How do I verify the quality of these tubes?
The Answer: Buyers search for the MTC (Mill Test Certificate). A professional MTC should include:
Chemical Analysis: Carbon, Chromium, Nickel, etc.
Mechanical Tests: Tensile strength, Yield strength, Elongation.
NDT (Non-Destructive Testing): Eddy Current or Hydro-test results.
Surface Roughness: Specifically for A270 (Ra values).