ASTM A270 TP316L Sanitary Stainless Steel Seamless Pipe U Bend
ASTM A270 covers the grades of seamless, welded and heavily cold
worked austenitic and ferritic/austenitic stainless steel sanitary
pipes. Seamless pipes shall be manufactured using a process that
does not involve welding at any stage. Welded pipes shall be
manufactured using an automated welding process with no filler
metal added during the welding process. Heavy cold-worked pipes
shall be cold-worked to a reduction of not less than 35% in wall
thickness and weld thickness prior to final annealing. Filler must
not be used when welding.
All materials shall be supplied in heat treated condition. A length
of flat rolled stock or a single tube should be chemically analyzed
for each heat. Each pipe shall be subjected to a mechanical test
such as reverse flattening test, hydrostatic test or
non-destructive electrical test.
The following surface finishes can be specified: Milling Finish,
Mechanically Polished Surface Finish, 80 Finish, 120 Finish, 180
Finish, 240 Finish, Electropolished Finish, and Max Rough Average
Surface Finish. Only the inner surface can be polished
longitudinally, and the inner surface, the outer surface, or both,
can be polished circumferentially.
ASTM A270 A270M Sanitary Tubing is ideal for the dairy, food and
beverage industries where the highest levels of purity and
cleanliness are required. It is certified to the requirements of
ASTM A270, 3A standards and most user specifications.
We stock all plumbing pipe sizes from 1/2" (12.7mm) to 8" (203.2mm)
OD in 20' standard lengths. Custom lengths and sizes are available
upon request.
ASTM A270 A270M ASME SA270 grades TP304L and TP316L are available
from stock. Other grades are available upon request.
A270 Sanitary Tubing Chemical Composition
| CLASS | C MAX | THE MAX | MN MAX | P MAX | S MAX | NI | CR | MO | OTHER PEOPLE |
|---|
| tp 304 | 0:08 | 0.75 | 2 | 0:04 | 0:03 | 8-11 | 18-20 | | |
| tp 304L | 0035 | 0.75 | 2 | 0:04 | 0:03 | 8-13 | 18-20 | | |
| tp 316 | 0:08 | 0.75 | 2 | 0:04 | 0:03 | 10-14 | 16-18 | 2-3 | |
| tp 316L | 0035 | 0.75 | 2 | 0:04 | 0:03 | 10-15 | 16-18 | 2-3 |
ASTM A270 Pipe Equivalent
| GRADE | UNS NO | DIN/ EN / WERKSTOFF |
|---|
| 304 | S30400 | 1.4301 |
| 304H | S30409 | - |
| 304L | S30403 | 1.4306 |
| 310S | S31008 | 1.4845 |
| 316S | S31600 | 1.4436 |
| 316H | S31609 | - |
| 316 TI | S31635 | 1.4571 |
| 316L (2.5 MIN MOLY) | S31603 | 1.4435 |
| 316L | S31603 | 1.4404 |
| 317L | S31703 | 1.4438 |
| 321 | S32100 | 1.4541 |
| 321H | S32109 | - |
| 347 | S34700 | 1.4550 |
| 904L | N08904 | 1.4539 |
Special characteristics |
| Temperature range: | Density kg/dm³ | Hardness (HB) |
|---|
pressure bomb/pressure vessel
- 60°C bis 400°C | 7,93 | ≤ 230 |
| excellent stability against pitting corrosion, stress corrosion and
intergranular corrosion |
