Pambuka ASTM A106:
1. ASTM A106 kanggo bahan standar Amerika, kalebu A, B, C kanthi total telung kelas
| Standar Amerika | Basa Cina sing padha | kekuatan tarik |
| A | 20# | 330MPa |
| B | Q235 | 415MPa, |
| C | Q345 | 485MPa |
- Analisis kimia
| ≤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 |
Kelas ndhuwur dibedakake dening C lan Mn, banjur nduweni kekuatan tarik sing beda.
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Wektu kiriman: 12 Maret 2018