| Item | Description |
|---|---|
| Material Grade | ASTM A213 TP316H |
| Tube Type | Seamless Stainless Steel Heat Exchanger Tube |
| Outside Diameter | 3/4 inch |
| Wall Thickness | 16 BWG (~1.52 mm) |
| Length | 1500 mm |
| Manufacturing Process | Hot Finished / Cold Drawn (as required) |
| Heat Treatment | Solution Annealed (per ASTM standard) |
| End Type | Plain End |
| Surface Finish | Pickled / Polished (optional) |
| Inspection & Testing | Dimensional check, visual inspection, hydrostatic test (optional) |
| Typical Applications | Chemical, pharmaceutical, food processing, power plants, heat exchangers |
| Packing | Boxed / Wooden crates, suitable for export |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 316H | Min | 0.04 | 0.04 | 0 | – | – | 16.0 | 2.00 | 10.0 | – |
| max | 0.10 | 0.10 | 0.75 | 0.045 | 0.03 | 18.0 | 3.00 | 14.0 | – |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 316H | 515 | 205 | 40% | 95 | 217 |
GNEE is a Chinese manufacturer of stainless steel tubing. We supply seamless ferritic and austenitic alloy steel boiler, superheater, and heat exchanger tubes conforming to ASTM A213 standards, widely used in various industries. In addition to 321/321H stainless steel, we also offer 304/304L, 316/316L, 347/347H, 904L, and duplex stainless steel. 317/317L seamless tubes are manufactured from stainless steel billets through cold drawing and cold rolling processes, followed by heat treatment and other procedures to produce seamless tubes according to specifications. For specific applications, we can provide U-bent tubes and bright annealed finished tubes upon request.

.jpg)

.jpg)

.jpg)

.jpg)