ASTM A268 TP430 1.4016 Seamless Stainless Steel Tube For Heat Exchanger
ASTM A268 TP430 1.4016 Seamless Stainless Steel Tube For Heat Exchanger
ASTM A268 TP430 seamless ferritic stainless steel tubes are manufactured in accordance with the ASTM A268/A268M-24 standard, which governs ferritic and martensitic stainless steel tube for general corrosion-resistant and high-temperature service. TP430 is a straight-chromium ferritic stainless steel grade (UNS S43000) with no nickel addition, featuring excellent atmospheric corrosion resistance, good formability, superior thermal conductivity and ferromagnetic properties. Different from austenitic 304/316 stainless steel, TP430 relies solely on 16.0-18.0% chromium for corrosion protection, making it a cost-effective alternative for mild corrosive environments. The seamless manufacturing process eliminates weld seams, ensuring uniform wall thickness, higher structural integrity, better pressure resistance and superior corrosion consistency compared with welded tubes. It is widely used in general industrial equipment, heat exchange systems, household appliances and decorative structural components.
Key Product Features:
- Excellent Corrosion Resistance
- Good Thermal & Mechanical Properties
- Cost-Effective Performance
- Excellent Formability
- Superior Oxidation Resistance
Material Equivalent Grades of TP430:
| Standard | Equivalent Grade Designation |
| ASTM/UNS | TP430 / S43000 |
| EN/DIN | 1.4016 / X6Cr17 |
| JIS | SUS430 |
Chemical Composition:
| Carbon (C) | ≤ 0.12% |
| Manganese (Mn) | ≤ 1.00% |
| Phosphorus (P) | ≤ 0.040% |
| Sulfur (S) | ≤ 0.030% |
| Silicon (Si) | ≤ 1.00% |
| Nickel (Ni) | ≤ 0.75% |
| Chromium (Cr) | 16.00% – 18.00% |
| Iron (Fe) | Balance |
Mechanical Properties:
| Tensile Strength | ≥ 415 MPa (60ksi) |
| 0.2% Offset Yield Strength | ≥ 205 MPa (30ksi) |
| Elongation (50mm gauge) | ≥ 22% |
| Rockwell Hardness (HRB) | ≤ 89 HRB |
| Brinell Hardness (HB) | ≤ 175 HB |
Common Surface Finishes:
- Pickled & Annealed (AP)
- Bright Annealed (BA)
- Polished Finish (2B/Mirror)
Applications of ASTM A268 TP430 Seamless Stainless Steel Tubes:
- Automotive Industry
- Power Generation
- Heat Treatment & Furnace Equipment
- Chemical Process Equipment
- Oil & Gas Plant
- General Industrial Pipeline Systems
- Precision Mechanical Components
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