ASTM A312-2019 the latest version
Nothing can be accomplished without standards.
With the update of the latest version of ASTM A312, we summerized the points in the below!
For the Chemical composition:
| C Max | Mn Max | P Max | S Max | Si Max | Cr | Ni | Mo | Ti | N | Cu | |
| TP304 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0-20.0 | 8.0-11.0 | ||||
| TP304L | 0.035 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0-20.0 | 8.0-13.0 | ||||
| TP310S | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 24.0-26.0 | 19.0-22.0 | 0.75 | |||
| TP310H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 1.00 | 24.0-26.0 | 19.0-22.0 | ||||
| TP316 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | |||
| TP316L | 0.035 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | |||
| TP316Ti | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 5(C+N)-0.7 | 0.1 | |
| TP317 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | |||
| TP317L | 0.035 | 2.00 | 0.045 | 0.03 | 1.00 | 18.0-20.0 | 11.0-15.0 | 3.0-4.0 | |||
| TP321 | 0.08 | 2.00 | 0.045 | 0.03 | 1.00 | 17.0-19.0 | 9.0-12.0 | 5(C+N)-0.7 | 0.1 | ||
| TP321H | 0.04-0.10 | 2.00 | 0.045 | 0.03 | 1.00 | 17.0-19.0 | 9.0-12.0 | 4(C+N)-0.7 | 0.1 | ||
| N08904 | 0.02 | 2.00 | 0.040 | 0.03 | 1.00 | 19.0-23.0 | 23.0-28.0 | 4.0-5.0 | 0.1 | 1.0-2.0 |
For the Mechanical Properties:
| Tensile Strength (MPa) | Yield Strength (MPa) | Elongation(%) | |
| TP304 | 205 | 515 | 35% |
| TP304L | 170 | 485 | 35% |
| TP310S | 205 | 515 | 35% |
| TP310H | 205 | 515 | 35% |
| TP316 | 205 | 515 | 35% |
| TP316L | 170 | 485 | 35% |
| TP316Ti | 205 | 515 | 35% |
| TP317 | 205 | 515 | 35% |
| TP317L | 205 | 515 | 35% |
| TP321(T≤0.375”) | 205 | 515 | 35% |
| TP321(T＞0.375”) | 170 | 480 | 35% |
| TP321H(T≤0.375”) | 205 | 515 | 35% |
| TP321H(T＞0.375”) | 170 | 480 | 35% |
| N08904 | 215 | 490 | 35% |
For the size tolerance:
Related FAQ
HOW YOU CAN BUY THE WORTHY PIPE-FITTINGS?
In the market,there are many different level products. What we do is help our customer to get the best quailty products b...
ASTM A312-2019 the latest version
Nothing can be accomplished without standards....
Calculation of pitting resistance equivalent numbers (PREN)
Introduction Pitting resistance equivalent numbers (PREN) are a theoretical way of comparing the pitting corrosion resist...
Why stainless steel also rust?
1. Many people think that stainless steel tube will not rust, which is a wrong one-sided view. First of all, the stainles...