Pipe Wall Thickness Calculator (ASME B31.3)
Tính độ dày thành ống
Công thức tính độ dày thành ống theo ASME B31.3
t = (P × D) / (2 × (S × E × W + P × Y)) + C
Trong đó:
- t: Độ dày thành ống tối thiểu (mm hoặc in)
- P: Áp suất thiết kế (MPa hoặc psi)
- D: Đường kính ngoài ống (OD, mm hoặc in)
- S: Ứng suất cho phép (MPa hoặc psi)
- E: Hệ số mối hàn (liền mạch E=1.0; hàn E=0.6–0.85)
- W: Hệ số giảm ứng suất (thường =1.0)
- Y: Hệ số vật liệu (thép ≈ 0.4)
- C: Dung sai ăn mòn (1–3 mm)
Tiêu chuẩn ASME B31.3 đảm bảo độ dày ống đủ để chịu áp suất thiết kế, đồng thời tính đến ăn mòn, hàn và nhiệt độ.
Sunjin Metals Vina cung cấp ống thép, mặt bích và phụ kiện đạt tiêu chuẩn ASME B31.3. Liên hệ hotline +84 33 4233 127 hoặc email sjmvina@sunjinmetal.com để được tư vấn.
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