ASTM A213 TP316L Stainless Steel Seamless Boiler And Superheater Tubes
Oct 13, 2025
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GNEE is a leading supplier, manufacturer, distributor, and exporter of ASME SA213 TP316L pipe. We produce A213 TP316L seamless stainless steel pipe for use in heat exchangers, boilers, superheaters, heat treatment, and pickling processes. We offer pipe that conforms to ASTM A213 and meets A1016/A1016M specifications, covering both ferritic and austenitic stainless steels. These pipes are designed for critical applications in high-purity fluid systems, pharmaceutical equipment, and food processing.
We offer seamless pipe in both medium and heavy wall thicknesses to meet specific application needs, with both bright annealed and annealed pickled finishes available. We also provide U-bends and coils for heat exchangers.Email: sales@gneestainless.com
ASTM A213 TP316L Annealed Heat Exchanger Tubing specification
| Outside Diameter | 3.2-25.4mm | |||||||||
| Wall Thickness | 0.2-2.5mm | |||||||||
| Length | As customer's requirement; In coil or in straight. | |||||||||
| Standard | A213, A269,etc. | |||||||||
| Grade | TP304, TP304L, TP316, TP316L, TP321, TP247H, etc. | |||||||||
| Delivery Condition | Pickled, Polished, Bright Annealed | |||||||||
| Technique | Seamless/Welded | |||||||||
| Application | Automotive industry, Aircraft/Aerospace, Instrumentation & Electrical, Chemical Industry, etc. | |||||||||
Chemical Composition % Max
| C | Mn | P | S | Si | Cr | Ni | Mo |
| 0.035 | 2 | 0.045 | 0.03 | 1 | 16-18 | 10-14 | 2-3 |
For small diameter or thin walls, or both, where many drawing passes are required, a carbon maximum of 0.040% is necessary in Grades TP304L, TP304LN, TP316L, and TP316LN.
Mechanical Property
| Gr. | Tensile Strength min | Yield Strength min | Elongation (%) | Brinell/Vickers Max | Rockwell Max |
| TP316L | 70ksi ( 485MPa ) | 25ksi ( 170MPa ) | 35 min | 192HBW/200HV | 90HRB |
ASTM A213 Stainless Steel Tubes Outside Diameter and Wall Thickness Tolerance
| OD, MM | OD TOLERANCE |
|---|---|
| < 25.4 | +/- 0.10 |
| 25.4 – <= 38.1 | +/- 0.15 |
| > 38.1 -< 50.8 | +/- 0.20 |
| 50.8 -< 63.5 | +/- 0.25 |
| 63.5 -< 76.2 | +/- 0.30 |
| 76.2 – <= 101.6 | +/- 0.38 |
| > 101.6 – <= 190.5 | +0.38/-0.64 |
| > 190.5 – <= 228.6 | +0.38/-1.14 |
| OD, MM | WT TOLERANCE |
|---|---|
| <= 38.1 | +20%/-0 |
| > 38.1 | +22%/-0 |
Tests
Flattening Test
One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.
Flaring Test
Flaring Test-One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.
Hydrostatic or Nondestructive Electric Test
Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the option of the manufacturer unless otherwise specified in the purchase order.
Packaging & Delivery
Packaging: Moisture-proof, shock-resistant packaging with wooden crates or plastic wrap for secure delivery.
Lead Time: 7–15 days for stock items, 20–30 days for custom orders.
Minimum Order Quantity (MOQ): 500 kg for sample orders; bulk discounts available.
Payment Terms: T/T, L/C, PayPal, or flexible terms for long-term customers.
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