ASME SA 209 Grade T1 seamless pipe is carbon steel pipe that is subsequently added with chromium, molybdenum, and sometimes vanadium, called chromium-molybdenum pipe. ASME specification alloy steel pipe for high temperature service applications.
Seamless alloy steel pipe conforming to ASME SA 209 Grade T1 is reheated and supplied in the fully annealed, isothermal annealed, or normalized quenched and tempered condition.
ASME SA 209 Grade T1 alloy steel seamless pipe has a typical chemical composition with 0.44-0.65 molybdenum added. The minimum tensile strength of the bearing is 380 MPa and the minimum yield strength of ASME SA 209 T1 grade pipe is 205 MPa.
ASME SA 209 Grade T1 Chemical Properties
| Carbon | Silicon | Manganese | Phosphorous | Sulphur | Molybdenum | Nickel | Chromium | Copper | Others |
|---|---|---|---|---|---|---|---|---|---|
| 0.10-0.20 | 0.10-0.50 | 0.30-0.80 | 0.025 | 0.025 | 0.44-0.65 | – | – | – | – |
Mechanical Properties
| Yield Strength | Tensile Strength | Elongation A5 min | |||
|---|---|---|---|---|---|
| MPa min | ksi min | MPa min | MPa min | ksi min | Percentage |
| 380 | – | 55 | 30 | ||
Equivalent Designation
| DIN | EN | BS | NFA | ASTM | ASME |
|---|---|---|---|---|---|
| DIN 17175 Grade 16Mo5 | – | – – | ASTM A209 Grade T1 | ASME SA 209 Grade T1 | – |
