ASTM A269 TP316L VS ASME SA213 TP316L Difference Between A269 TP316L and SA213 TP316L
Guanyu Tube is specialized manufacturer of ASTM A269 TP316 Stainless Steel Tubing and ASME SA213 TP316L Stainless Steel Tubes. So what is the difference bewteen ASTM A269 TP316 and ASME SA213 TP316L.
Here’s a table summarizing the key differences between ASTM A269 TP316L and ASME SA213 TP316L:
| Category | ASTM A269 TP316L | ASME SA213 TP316L |
|---|---|---|
| Standard Scope | Covers seamless and welded austenitic stainless steel tubing for general corrosion resistance and high-temperature service. | Part of the ASME Boiler and Pressure Vessel Code (BPVC), specifically for seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes. |
| Primary Application | General-purpose tubing (e.g., pharmaceutical, food processing, chemical industries). | High-pressure and high-temperature applications (e.g., power generation boilers, heat exchangers, pressure vessels). |
| Material Certification | Compliance with ASTM A269 standards. | Requires ASME BPVC certification; material must meet both ASTM and additional ASME requirements. |
| Testing Requirements | – Hydrostatic or nondestructive testing (NDT). – Mechanical properties tests (tensile, hardness). | – Stricter NDT requirements (e.g., mandatory hydrostatic testing or Eddy Current Testing). – Additional tests for high-temperature performance (e.g., stress rupture, creep resistance). |
| Dimensional Tolerances | Less stringent tolerances for non-critical applications. | Tighter tolerances to ensure safety in high-pressure environments. |
| Marking & Documentation | Marked with ASTM A269, grade (TP316L), heat number, and manufacturer’s identification. | Must include ASME SA213 marking, “BPVC” stamp, and traceability to ASME compliance. |
| Code Compliance | Suitable for non-code applications or systems not requiring ASME certification. | Mandatory for ASME-regulated systems (e.g., boilers, pressure vessels). |
| Chemical Composition | Identical to ASME SA213 TP316L (UNS S31603): – C ≤ 0.03%, Cr 16–18%, Ni 10–14%, Mo 2–3%. | Same as ASTM A269 TP316L, but with stricter controls for trace elements to ensure weldability and high-temperature stability. |
| Mechanical Properties | Similar tensile strength (≥485 MPa) and yield strength (≥170 MPa). | Same minimum values, but ASME may impose additional heat treatment or testing for high-temperature performance. |
Key Notes:
- Interchangeability: TP316L material under both standards is chemically identical, but ASME SA213 includes additional quality controls for critical applications.
- Certification: ASME SA213 requires formal ASME BPVC certification, while ASTM A269 does not.
- Application Focus: ASTM A269 is broader for general use, while ASME SA213 is specialized for high-pressure systems under the ASME code (Such as Heat Exchanger Tubes).
For specific projects, always consult the latest edition of the standards and ensure compliance with local regulations.
