ASTM A312 TP309 Seamless Stainless steel pipe
We are the professional manufacturer of ASTM A312 TP309 Seamless Stainless steel pipe in China.
ASTM A312 TP309 is also known as UNS S30900. Grade 309 stainless steel has high corrosion resistance and strength compared to 304 stainless steel.It is used in a variety of applications, including:
Power generation, Petroleum refining, Paper mill equipment, Furnaces, Waste treatment, Heating components, Auto exhaust components, Boiler baffles, Heat exchangers, and Desalination plant
ASTM A312 is the standard for Seamless and Welded Austenitic Stainless Steel Pipes
Stainless Steel ASTM A312 TP309 Pipe Specification
| Specifications | : | ASTM A312 / SA 312 TP309 |
| Dimensions | : | ASTM, ASME and API |
| Size | : | 1/8″NB TO 30″NB IN |
| Form | : | Seamless / Welded / ERW / EFW |
| Length | : | 6000mm or customized |
| Schedule | : | SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
Stainless Steel ASTM A312 TP309 Equivalent Grades
| STANDARD | UNS | WERKSTOFF NR. |
| SS 309 | S30900 | 1.4828 |
ASTM A312 TP309 Seamless pipe Chemical Composition
| Grade | C | Ni | Si | S | Mn | P | Cr | Mo | |
| SS 309 | min. | – | 12.0 | – | – | – | – | 22.0 | – |
| max. | 0.20 | 15.0 | 0.75 | 0.03 | 2.0 | 0.045 | 24.0 | ||
ASTM A312 TP309 Pipe Mechanical Properties
| Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) min | Yield Strength 0.2% Proof (MPa) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| SS 309 | 515 | 40 | 205 | 85 | 147 |
