ASTM A213 TP316L / 1.4404 Stainless Steel Seamless Tube Heat Exchanger Tube 100% HT / ET
ASME SA213 / ASTM A213 TP316L Stainless Steel Seamless Tube Heat Exchanger Tube
YUHONG GROUP specializes in manufacturing high‑performance heat exchanger tubes, and ASTM A213 TP316L (1.4404) stainless steel seamless tube is one of our most sold materials. This austenitic grade offers outstanding corrosion resistance – especially against chlorides, pitting, and acidic media – combined with excellent weldability and creep strength.
Every tube is produced to strict ASTM A213 standards, bright annealed, solution annealed and pickled for a smooth internal/external surface that maximizes heat transfer efficiency. To guarantee absolute reliability in critical services (chemical, petrochemical, pharmaceutical, marine, and power generation), we supply 100% hydrostatic tested (HT) and 100% eddy current tested (ET) tubes, ensuring zero leaks and no hidden defects. Thanks to our rigorous quality control and competitive manufacturing, YUHONG brand heat exchanger tubes have been exported to more than 85 countries worldwide, earning a strong reputation for consistency, durability, and on‑time delivery.
Chemical Composition% of ASTM A213 TP316L / 1.4404 Stainless Steel Seamless Tube Heat Exchanger Tube
| Grade | UNS Designation | C | M | P | S | Si | Ch | Ni | Mo | N | Nb | Ti | Other |
| TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0–18.0 | 10.0–14.0 | 2.00–3.00 | ... | ... | ... | ... |
Mechanical Properties of ASTM A213 TP316L / 1.4404 Stainless Steel Seamless Tube Heat Exchanger Tube
|
Grade
|
Tensile Str
(MPa) min |
Yield Str
0.2% Proof (MPa) min |
Elong
(% in 50mm) min |
Hardness
|
|
|
Rockwell B (HR B) max
|
Brinell (HB) max
|
||||
|
316L |
485
|
170
|
40
|
95
|
217
|
100% HT / ET" – Non‑Destructive Testing (NDT)
This is a critical requirement for heat exchanger tubes. It means every length of tube undergoes both hydrostatic testing and eddy current testing.
| Test | Method | Purpose |
| Hydrostatic Test (HT) | Tube filled with water at specified pressure (e.g., 10–20 MPa, per ASTM A213) | Check for leaks, burst strength, and overall integrity |
| Eddy Current Test (ET) | Electromagnetic coil passes through tube; detects changes in impedance | Find surface & near‑surface defects (pits, cracks, inclusions, wall thinning) |
*Every linear metre of every tube is tested – not just random samples. This is standard for high‑reliability heat exchanger tubes.
Application
-
Heat Exchangers & Condensers
-
Boiler & Superheater Tubes
-
Oil & Gas Industry
-
Chemical & Petrochemical Processing
-
Pharmaceutical & Food Processing
-
Marine & Offshore Applications
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.