1. Kev sib piv tshuaj lom neeg
| Lub ntsiab | ASTM A252 (Gr.3) Txoj Cai | ASTM A53 (Qib B) |
|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.26% | Tsawg dua lossis sib npaug li 0.30% |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.20% | Tsawg dua lossis sib npaug li 1.20% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.05% | Tsawg dua lossis sib npaug li 0.035% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.05% | Tsawg dua lossis sib npaug li 0.035% |
2. Mechanical Properties Comparison
| Parameter | ASTM A252 (Gr.3) Txoj Cai | ASTM A53 (Qib B) |
|---|---|---|
| Yield zog | Ntau dua lossis sib npaug li 241 MPa | Ntau dua lossis sib npaug li 240 MPa |
| Tensile zog | Ntau dua lossis sib npaug li 455 MPa | Ntau dua lossis sib npaug li 415 MPa |
| Elongation | Ntau dua lossis sib npaug li 20% | Ntau dua lossis sib npaug li 24% |
3. Mechanical Performance Comparison
| Yam ntxwv | ASTM A252, ASTM A252 | ASTM A53 |
|---|---|---|
| Txoj Cai Ncaj Ncees | Tsawg dua lossis sib npaug li 0.25% ntev | Tsis muaj kev tshwj xeeb |
| Kev xeem Standard | 100% weld soj ntsuam | 100% hydrostatic kuaj |
| Qhov kub thiab txias | -20℃~ +50 degree | -30℃~ +80 degree |
4. Daim ntawv thov sib txawv
ASTM A252, ASTM A252: Pile foundation engineering, excavation support, port structures
ASTM A53: Cov kav dej thauj mus los, kev txhawb nqa kev tsim kho, kev tsim khoom siv tshuab
A252 welded thiab seamless steel yeeb nkab pawg Hoobkas
