A312 Stainless Steel Pipe
Overview
A312 is a standard apecification for seamless and welded austenitic stainless steel pipe intended for high temperature and corrosive service.
First Distributors Inventory
| Size Range: | 1/8" - 24" Diameter |
| Grades: | TP304, TP310, TP316, TP321, TP347 |
| Schedules: | 5, 10, 40 (STD), TRUE 40, 80 (XH), TRUE 80, 100, 120, 160, XXH |
Ordering Information
| Required Information for Ordering | |
|---|---|
| Quantity | Feet or number of lengths |
| Size | NPS (Outside Diameter) and Schedule Number (Average Wall Thickness) |
| Grade | TP304, TP310, TP316, TP321, TP347 |
| Construction | Seamless or Welded |
Manufacturing Considerations
Normally furnished in square cut ends, pipe with beveled ends can be provided. Spot radiography or 100% radiography can be provided on all weld seams. Pipe is pickled and passivated as per ASTM A380 to maintain corrosion resistance and to prevent surface discoloration from free iron oxidation.
Grades
| C (max %) | Mn (max %) | Si (max %) | P (max %) | S (max %) | Cr | Ni | N (max %) | ||
|---|---|---|---|---|---|---|---|---|---|
| 304 | 0.07 | 2 | 0.75 | 0.045 | 0.03 | 18-20 | 8-10.5 | — | |
| 304L | 0.03 | 2 | 0.75 | 0.045 | 0.03 | 18-20 | 8-10.5 | 0.1 | |
| C (max %) | Mn (max %) | Si (max %) | P (max %) | S (max %) | Cr | Mo | Ni | N (max %) | |
| 316 | 0.08 | 2 | 0.75 | 0.045 | 0.03 | 16-18 | '2-3 | '10-14 | 0.1 |
| 316L | 0.03 | 2 | 0.75 | 0.045 | 0.03 | 16-18 | '2-3 | '10-14 | 0.1 |
Manufacturers
| Domestic Mills | Import Mills |
|---|---|
| PEXCO | Changwon |
| Sandvik | DMV |
| Kobe | |
| Nantong | |
| Productos Tubulares | |
| Schoeller- Bleckmann | |
| Sumitomo | |
| Tubacex | |
| Walsin |