If you are looking for high-quality ASTM A268 TP430 stainless steel seamless tubes, GNEE Stainless Steel is a professional manufacturer with many years of experience in producing high-quality stainless steel tubing and piping solutions. Our factory is equipped with advanced production lines and precision testing equipment, ensuring that every seamless tube meets strict international standards.
ASTM A268 TP430 stainless steel tubing is a ferritic stainless steel tube (seamless or welded) conforming to the ASTM A268 standard, suitable for various general-purpose applications, including high-temperature and corrosion-resistant applications. It is a non-hardenable steel grade with good mechanical properties and high-temperature resistance up to 816°C (1500°F), making it a more cost-effective alternative to austenitic stainless steel.
We specialize in providing ASTM A268 TP430 stainless steel seamless tubes in various sizes and specifications, serving industries such as chemical, petrochemical, power generation, and construction. ASTM A268 TP430 stainless steel tubes are manufactured using seamless cold-drawn or hot-rolled processes, free from welding defects. With a nominal pressure rating of ≤10 MPa, it exhibits excellent impact and fatigue strength and can withstand temperatures up to 700°C. These pipes have good cold bending and welding properties without the need for complex preheating treatments.
ASTM A268 Stainless Steel Tubing Specification
| Standard | ASTM A268, ASME SA268 |
|---|---|
| Tube Type | Both Welded And Seamless |
| Grades | ASTM A268 TP 410, ASTM A268 TP 430, ASTM A268 TP 439 |
| Outside Diameter | 1/4″ (6.25mm) To 8″ (203mm) |
| Wall Thickness | 0.02″ (0.5mm) To 0.5″(12mm) |
| Application | Heat Exchanger, Heater, Condenser |
TP430 stainless steel equivalent
|
STANDARD |
WERKSTOFF NR. |
UNS |
JIS |
KS |
|
TP430 |
1.4016 |
S43000 |
SUS430 |
STS430 |
Chemical & Mechanical Properties
| ASTM A268 TP430 Chemical Composition (%) | |||||
| C |
Mn |
P | S |
Si |
Cr |
| ≤0.12% | ≤1.00% | ≤0.040% | ≤0.030% | ≤1.00% | 16.0%~18.0% |
Mechanical Properties
| Property | Standard Value (Annealed) |
| Tensile Strength | ≥415 MPa |
| Yield Strength | ≥240 MPa |
| Elongation | ≥20% |
| Hardness | ≤190 HB (Brinell) |
Stamping Process of ASTM A268 TP430 Stainless Steel Seamless Pipes
The punching process of ASTM A268 TP430 stainless steel seamless pipes follows standard procedures:
◆Inspection and Cutting: Flaw-free raw materials are inspected and cut to precise lengths to ensure defect-free billets.
◆Billet Preheating: Billets are preheated to enhance plasticity, preventing cracking or deformation during punching.
◆Hydraulic Punching: Pipes are formed in a single operation using hydraulic presses with specialized dies.
◆Sizing and Straightening: After punching, pipes are sized and straightened, with strict control of outer diameter and wall thickness tolerances in accordance with ASTM A268 standards.
◆Surface Treatment and Preliminary Testing: Pipes undergo oil and rust removal, followed by initial mechanical performance testing to ensure the quality and structural integrity of the punched products.
ASME SA 268 TP 430 Boiler Tube Testing
Tensile Test
Flaring Test (for seamless tubes)
Flanging Test (for welded tubes)
Hardness Test
Reverse Flattening Test
Intergranular Corrosion Test and Hydrostatic Test or Non-destructive Electromagnetic Testing
All pipes are carefully packaged before shipment, coated with a protective layer, and secured with steel straps. They are then loaded into export-standard wooden crates or containers to minimize the risk of damage during transportation. We offer flexible delivery options, with a typical delivery time of 15 to 30 days, depending on the order size and specifications.
TP430 stainless steel seamless tubes packaging
