1. Kev sib piv tshuaj lom neeg
| Lub ntsiab | ASTM A106 (Gr.B). | ASTM A252 (Gr.3) Txoj Cai |
|---|---|---|
| Cov pa roj carbon (C) | 0.17-0.24% | Tsawg dua lossis sib npaug li 0.26% |
| Silicon (Si) | 0.17-0.37% | Tsawg dua lossis sib npaug li 0.20% |
| Manganese (Mn) | 0.35-0.65% | Tsawg dua lossis sib npaug li 1.20% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.05% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.030% | Tsawg dua lossis sib npaug li 0.05% |
2. Mechanical Properties Comparison
| Parameter | ASTM A106 (Gr.B). | ASTM A252 (Gr.3) Txoj Cai |
|---|---|---|
| Yield zog | Ntau dua lossis sib npaug li 240 MPa | Ntau dua lossis sib npaug li 241 MPa |
| Tensile zog | Ntau dua lossis sib npaug li 415 MPa | Ntau dua lossis sib npaug li 455 MPa |
| Elongation | Ntau dua lossis sib npaug li 24% | Ntau dua lossis sib npaug li 20% |
3. Cov yam ntxwv ntawm kev sib piv
| Yam ntxwv | ASTM A106 1 | ASTM A252, ASTM A252 |
|---|---|---|
| Qhov kub thiab txias | -30℃~ +80 degree | -20℃~ +50 degree |
| Kev soj ntsuam Standard | 100% Hydrostatic Test | 100% Weld soj ntsuam |
| Txoj Cai Ncaj Ncees | Tsis tau teev tseg | Tsawg dua lossis sib npaug li 0.25% ntawm qhov ntev |
4. Daim ntawv thov sib txawv
ASTM A106 1: Cov kav dej xa dej, siab -kub/siab tshuab, Petrochemical khoom
ASTM A252, ASTM A252: Pile foundation engineering, excavation support, Port/wharf structures
A252 GR3 yeeb nkab pawg Hoobkas
