Introduzzjoni ASTM A106:
1. ASTM A106 għall-materjal standard Amerikan, inkluż A, B, C total ta 'tliet gradi
| Standard Amerikan | Ċiniż simili | saħħa tat-tensjoni |
| A | 20# | 330MPa |
| B | Q235 | 415MPa, |
| C | Q345 | 485MPa |
- Analizza kimika
| ≤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 |
Fuq il-grad huwa distint minn C u Mn, imbagħad jiġi b'saħħa tat-tensjoni differenti.
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Ħin tal-post: Mar-12-2018