1. Konparezon Chimik Konpozisyon
| Eleman | ASTM A106 (Gr.B) | ASTM A252 (Gr.3) |
|---|---|---|
| Kabòn (C) | 0.17-0.24% | Mwens pase oswa egal a 0.26% |
| Silisyòm (Si) | 0.17-0.37% | Mwens pase oswa egal a 0.20% |
| Manganèz (Mn) | 0.35-0.65% | Mwens pase oswa egal a 1.20% |
| Fosfò (P) | Mwens pase oswa egal a 0.030% | Mwens pase oswa egal a 0.05% |
| Souf (S) | Mwens pase oswa egal a 0.030% | Mwens pase oswa egal a 0.05% |
2. Konparezon Pwopriyete Mekanik
| Paramèt | ASTM A106 (Gr.B) | ASTM A252 (Gr.3) |
|---|---|---|
| Sede fòs | Pi gran pase oswa egal a 240 MPa | Pi gran pase oswa egal a 241 MPa |
| Fòs rupture | Pi gran pase oswa egal a 415 MPa | Pi gran pase oswa egal a 455 MPa |
| Elongasyon | Pi gran pase oswa egal a 24% | Pi gran pase oswa egal a 20% |
3. Konparezon karakteristik mekanik
| Karakteristik | ASTM A106 | ASTM A252 |
|---|---|---|
| Ranje Tanperati | -30 degre ~+80 degre | -20 degre ~+50 degre |
| Estanda enspeksyon | 100% tès idrostatik | 100% Weld Enspeksyon |
| Egzijans dwat | Pa espesifye | Mwens pase oswa egal a 0.25% nan longè |
4. Diferans aplikasyon
ASTM A106: Tiyo transmisyon likid, sistèm tanperati/presyon wo, ekipman petwochimik
ASTM A252: Jeni fondasyon pil, sipò ègzumasyon, estrikti pò / waf
A252 GR3 Tiyo pil faktori
