Réamhrá ASTM A106:
1. ASTM A106 don ábhar caighdeánach Meiriceánach, lena n-áirítear A, B, C iomlán de thrí ghrád
| caighdeán Meiriceánach | Sínis den chineál céanna | neart teanntachta |
| A | 20 # | 330 MPa |
| B | Q235 | 415MPa, |
| C | Q345 | 485MPa |
- Anailís cheimiceach
| ≤C | Mn | ≤P | ≤S | Si | ≤Cr | ≤Cu | Mo | Ni | V | |
| A | 0.25 | 0.27-0.93 | 0. 035 | 0. 035 | 0.1 | 0.4 | 0.4 | 0. 15 | 0.4 | 0. 08 |
| B | 0. 30 | 0.29-1.06 | 0. 035 | 0. 035 | 0.1 | 0.4 | 0.4 | 0. 15 | 0.4 | 0. 08 |
| C | 0. 35 | 0.29-1.06 | 0. 035 | 0. 035 | 0.1 | 0.4 | 0.4 | 0. 15 | 0.4 | 0. 08 |
Os cionn grád atá idirdhealú ag C agus Mn, ansin a thagann sé le neart teanntachta éagsúla.
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Am postála: Mar-12-2018