ASTM A270 TP304 (UNS S30400）Bright Annealed Stainless Steel Tube For Industry Field
TP304 bright stainless steel tube is an austenitic product manufactured in strict accordance with ASTM A270 American Standard, designated as UNS S30400. As a bright-finish tubing, it is processed by precision drawing and polishing, with outstanding surface flatness and luster. This product is suitable for scenarios requiring high surface aesthetics and hygienic performance, and is widely used in global industrial and commercial fields.
| Carbon (C) | Chromium (Cr) | Nickel (Ni) | Manganese (Mn) | Silicon (Si) | Phosphorus (P) | Sulfur (S) |
|---|---|---|---|---|---|---|
| ≤0.08% | 18.00%-20.00% | 8.00%-10.50% | ≤2.00% | ≤1.00% | ≤0.045% | ≤0.030% |
| Product Advantages | Key Application Scenarios | |||||
|---|---|---|---|---|---|---|
| ASTM A270 compliant, high-precision bright surface, excellent corrosion resistance, hygienic & easy to clean, stable mechanical properties. | Food & Pharmaceutical Industry, Medical Equipment, Electronic Industry, Sanitary Piping, Precision Instruments (require high surface quality and hygiene). | |||||
| Diameter (OD) | Wall Thickness (WT) | Standard Length | Surface Finish | OD Precision | WT Tolerance | Applicable Type | Cutting End Face |
|---|---|---|---|---|---|---|---|
| 1/4 in (6.4mm) - 4 in (101.6mm) (Standard), Customizable up to 8 in (203.2mm) | 0.020 in (0.51mm) - 0.4 in (10.16mm) (Standard), Customizable up to 0.6 in (15.24mm) | 1m-12m (Custom Length on Demand) | Bright Annealed, Ra ≤ 0.8μm, Mirror-like Luster, No Scratches | ±0.05mm | ±0.05mm | Seamless Bright Tube | Smooth, Burr-Free, Precision |
The TP304 bright stainless steel tube fully meets the strict requirements of ASTM A270 standard for surface finish, dimensional accuracy and performance. Its bright annealed surface forms an invisible protective film, which not only enhances corrosion resistance but also avoids dirt accumulation, ensuring long-term stable operation in hygienic and high-precision application scenarios. The product undergoes full-process quality control from raw material selection to finished product testing, with complete traceability of each batch, providing reliable material support for global customers.
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