ASTM A213 covers seamless Ferritic and Austenitic steel boiler, superheater, and heat-exchanger tubes, designated Grades TP201, TP202, TP304, TP304H, TP316, TP316L, TP309, TP310, TP347H, etc. We stock a large inventory of 304, 304H, 316, 316L, 309, 321, 347 stainless steel tubes originated from China state-owned steel mills.

Hot-rolled Seamless Pipes:

Manufactured by piercing heated steel billets and then rolling them. This method offers simple process and high production efficiency, making it suitable for large-diameter, thick-walled pipes.

Cold-drawn Seamless Pipes:

Produced by piercing hot-rolled pipes followed by cold-drawing process. This method ensures precise pipe dimensions and excellent surface quality, ideal for applications requiring high precision.

1. Round steel
2. Re-inspection
3. Peeling
4. Cutting
5. Centering
6. Heating
7. Perforation
8. Pickling
9. Flat head
10. Inspection and grinding
11. Cold rolling (cold drawing)
12. Degreasing
13. Heat treatment
14. Straightening
15. Cutting (sizing)
16. Pickling/Passivation
17. Finished product inspection (eddy current, ultrasound, water pressure)
18. Packaging and storage

ASTM A213 Seamless Stainless Steel Tubes are suitable for boilers, superheaters, heat exchangers and other similar high temperature and high pressure environments. These steel pipes provide excellent high temperature resistance, high pressure resistance and corrosion resistance to ensure safe operation and long service life under harsh working conditions.

Grade and Chemical Composition:

The standard specifies chemical composition requirements for various grades including carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), nickel (Ni), molybdenum (Mo) and other elements with clearly defined content ranges.

Size Specifications:

Covers requirements for outer diameter and wall thickness dimensions, typically ranging from smaller sizes such as 1/8 inch (approximately 3.18 mm) to larger sizes of several inches.

Mechanical Properties:

Specifies mechanical performance indicators including tensile strength, yield strength, and elongation to ensure pipes can withstand corresponding loads and stresses without excessive deformation or damage.

Manufacturing Process:

Includes hot rolling, cold drawing, and hot expansion production methods, with specific process requirements to ensure quality and performance meet standards.

Quality Control and Inspection:

Specifies methods for quality control including chemical composition analysis, dimensional measurement, appearance inspection, non-destructive testing (eddy current, ultrasonic) and mechanical properties testing.

Delivery Status:

Typically delivered in heat-treated states such as annealing or normalizing to obtain required performance and microstructure characteristics.

Due to their excellent performance and quality assurance, ASTM A213 Seamless Stainless Steel Tubes are widely used in high temperature, high pressure and corrosive environments across industries including petrochemicals, power generation, boilers, and heat exchangers. Different grades and specifications are available to suit various specific application scenarios.