了解A252三级钢管及其在下水道中的应用
A252 3级钢管是螺旋埋弧管符合API 5L管线管规格。它以其高抗拉强度、耐腐蚀性以及承受极端压力和温度的能力而闻名。这些特性使其成为管道暴露于潮湿、化学物质和其他环境压力源的下水道应用的理想选择。
| 指定外径（D） | 指定壁厚（毫米） | 最小试验压力（Mpa） | ||||||||||
| 钢材等级 | ||||||||||||
| in | mm | L210(A) | L245(B) | L290(X42) | L320(X46) | L360(X52) | L390(X56) | L415(X60) | L450(X65) | L485(X70) | L555(X80) | |
| 8-5/8 | 219.1 | 5.0 | 5.8 | 6.7 | 9.9 | 11.0 | 12.3 | 13.4 | 14.2 | 15.4 | 16.6 | 19.0 |
| 7.0 | 8.1 | 9.4 | 13.9 | 15.3 | 17.3 | 18.7 | 19.9 | 20.7 | 20.7 | 20.7 | ||
| 10.0 | 11.5 | 13.4 | 19.9 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 9-5/8 | 244.5 | 5.0 | 5.2 | 6.0 | 10.1 | 11.1 | 12.5 | 13.6 | 14.4 | 15.6 | 16.9 | 19.3 |
| 7.0 | 7.2 | 8.4 | 14.1 | 15.6 | 17.5 | 19.0 | 20.2 | 20.7 | 20.7 | 20.7 | ||
| 10.0 | 10.3 | 12.0 | 20.2 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 10-3/4 | 273.1 | 5.0 | 4.6 | 5.4 | 9.0 | 10.1 | 11.2 | 12.1 | 12.9 | 14.0 | 15.1 | 17.3 |
| 7.0 | 6.5 | 7.5 | 12.6 | 13.9 | 15.7 | 17.0 | 18.1 | 19.6 | 20.7 | 20.7 | ||
| 10.0 | 9.2 | 10.8 | 18.1 | 19.9 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 12-3/4 | 323.9 | 5.0 | 3.9 | 4.5 | 7.6 | 8.4 | 9.4 | 10.2 | 10.9 | 11.8 | 12.7 | 14.6 |
| 7.0 | 5.5 | 6.5 | 10.7 | 11.8 | 13.2 | 14.3 | 15.2 | 16.5 | 17.8 | 20.4 | ||
| 10.0 | 7.8 | 9.1 | 15.2 | 16.8 | 18.9 | 20.5 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| (325.0) | 5.0 | 3.9 | 4.5 | 7.6 | 8.4 | 9.4 | 10.2 | 10.9 | 11.8 | 12.7 | 14.5 | |
| 7.0 | 5.4 | 6.3 | 10.6 | 11.7 | 13.2 | 14.3 | 15.2 | 16.5 | 17.8 | 20.3 | ||
| 10.0 | 7.8 | 9.0 | 15.2 | 16.7 | 18.8 | 20.4 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 13-3/8 | 339.7 | 5.0 | 3.7 | 4.3 | 7.3 | 8.0 | 9.0 | 9.8 | 10.4 | 11.3 | 12.1 | 13.9 |
| 8.0 | 5.9 | 6.9 | 11.6 | 12.8 | 14.4 | 15.6 | 16.6 | 18.0 | 19.4 | 20.7 | ||
| 12.0 | 8.9 | 10.4 | 17.4 | 19.2 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 14 | 355.6 | 6.0 | 4.3 | 5.0 | 8.3 | 9.2 | 10.3 | 11.2 | 11.9 | 12.9 | 13.9 | 15.9 |
| 8.0 | 5.7 | 6.6 | 11.1 | 12.2 | 13.8 | 14.9 | 15.9 | 17.2 | 18.6 | 20.7 | ||
| 12.0 | 8.5 | 9.9 | 16.6 | 18.4 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| (377.0) | 6.0 | 4.0 | 4.7 | 7.8 | 8.6 | 9.7 | 10.6 | 11.2 | 12.2 | 13.1 | 15.0 | |
| 8.0 | 5.3 | 6.2 | 10.5 | 11.5 | 13.0 | 14.1 | 15.0 | 16.2 | 17.5 | 20.0 | ||
| 12.0 | 8.0 | 9.4 | 15.7 | 17.3 | 19.5 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 16 | 406.4 | 6.0 | 3.7 | 4.3 | 7.3 | 8.0 | 9.0 | 9.8 | 10.4 | 11.3 | 12.2 | 13.9 |
| 8.0 | 5.0 | 5.8 | 9.7 | 10.7 | 12.0 | 13.1 | 13.9 | 15.1 | 16.2 | 18.6 | ||
| 12.0 | 7.4 | 8.7 | 14.6 | 16.1 | 18.1 | 19.6 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| (426.0) | 6.0 | 3.5 | 4.1 | 6.9 | 7.7 | 8.6 | 9.3 | 9.9 | 10.8 | 11.6 | 13.3 | |
| 8.0 | 4.7 | 5.5 | 9.3 | 10.2 | 11.5 | 12.5 | 13.2 | 14.4 | 15.5 | 17.7 | ||
| 12.0 | 7.1 | 8.3 | 13.9 | 15.3 | 17.2 | 18.7 | 19.9 | 20.7 | 20.7 | 20.7 | ||
| 18 | 457.0 | 6.0 | 3.3 | 3.9 | 6.5 | 7.1 | 8.0 | 8.7 | 9.3 | 10.0 | 10.8 | 12.4 |
| 8.0 | 4.4 | 5.1 | 8.6 | 9.5 | 10.7 | 11.6 | 12.4 | 13.4 | 14.4 | 16.5 | ||
| 12.0 | 6.6 | 7.7 | 12.9 | 14.3 | 16.1 | 17.4 | 18.5 | 20.1 | 20.7 | 20.7 | ||
| 20 | 508.0 | 6.0 | 3.0 | 3.5 | 6.2 | 6.8 | 7.7 | 8.3 | 8.8 | 9.6 | 10.3 | 11.8 |
| 8.0 | 4.0 | 4.6 | 8.2 | 9.1 | 10.2 | 11.1 | 11.8 | 12.8 | 13.7 | 15.7 | ||
| 12.0 | 6.0 | 6.9 | 12.3 | 13.6 | 15.3 | 16.6 | 17.6 | 19.1 | 20.6 | 20.7 | ||
| 16.0 | 7.9 | 9.3 | 16.4 | 18.1 | 20.4 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| (529.0) | 6.0 | 2.9 | 3.3 | 5.9 | 6.5 | 7.3 | 8.0 | 8.5 | 9.2 | 9.9 | 11.3 | |
| 9.0 | 4.3 | 5.0 | 8.9 | 9.8 | 11.0 | 11.9 | 12.7 | 13.8 | 14.9 | 17.0 | ||
| 12.0 | 5.7 | 6.7 | 11.8 | 13.1 | 14.7 | 15.9 | 16.9 | 18.4 | 19.8 | 20.7 | ||
| 14.0 | 6.7 | 7.8 | 13.8 | 15.2 | 17.1 | 18.6 | 19.8 | 20.7 | 20.7 | 20.7 | ||
| 16.0 | 7.6 | 8.9 | 15.8 | 17.4 | 19.6 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 22 | 559.0 | 6.0 | 2.7 | 3.2 | 5.6 | 6.2 | 7.0 | 7.5 | 8.0 | 8.7 | 9.4 | 10.7 |
| 9.0 | 4.1 | 4.7 | 8.4 | 9.3 | 10.4 | 11.3 | 12.0 | 13.0 | 14.1 | 16.1 | ||
| 12.0 | 5.4 | 6.3 | 11.2 | 12.4 | 13.9 | 15.1 | 16.0 | 17.4 | 18.7 | 20.7 | ||
| 14.0 | 6.3 | 7.4 | 13.1 | 14.4 | 16.2 | 17.6 | 18.7 | 20.3 | 20.7 | 20.7 | ||
| 19.1 | 8.6 | 10.0 | 17.8 | 19.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 22.2 | 10.0 | 11.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 24 | 610.0 | 6.0 | 2.5 | 2.9 | 5.1 | 5.7 | 6.4 | 6.9 | 7.3 | 8.0 | 8.6 | 9.8 |
| 9.0 | 3.7 | 4.3 | 7.7 | 8.5 | 9.6 | 10.4 | 11.0 | 12.0 | 12.9 | 14.7 | ||
| 12.0 | 5.0 | 5.8 | 10.3 | 11.3 | 12.7 | 13.8 | 14.7 | 15.9 | 17.2 | 19.7 | ||
| 14.0 | 5.8 | 6.8 | 12.0 | 13.2 | 14.9 | 16.1 | 17.1 | 18.6 | 20.0 | 20.7 | ||
| 19.1 | 7.9 | 9.1 | 16.3 | 17.9 | 20.2 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 25.4 | 10.5 | 12.0 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| （630.0） | 6.0 | 2.4 | 2.8 | 5.0 | 5.5 | 6.2 | 6.7 | 7.1 | 7.7 | 8.3 | 9.5 | |
| 9.0 | 3.6 | 4.2 | 7.5 | 8.2 | 9.3 | 10.0 | 10.7 | 11.6 | 12.5 | 14.3 | ||
| 12.0 | 4.8 | 5.6 | 9.9 | 11.0 | 12.3 | 13.4 | 14.2 | 15.4 | 16.6 | 19.0 | ||
| 16.0 | 6.4 | 7.5 | 13.3 | 14.6 | 16.5 | 17.8 | 19.0 | 20.6 | 20.7 | 20.7 | ||
| 19.1 | 7.6 | 8.9 | 15.8 | 17.5 | 19.6 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
| 25.4 | 10.2 | 11.9 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | 20.7 | ||
制造过程A252 3级钢管该方法涉及沿管道长度形成连续的螺旋焊缝，从而形成坚固的无缝结构。这种施工技术增强了管道均匀分布应力和抗变形的能力，使其成为地下管道的理想选择。此外，管道涂有保护涂层，进一步增强了其耐腐蚀和耐磨性，确保其在下水道应用中拥有长久的使用寿命。
A252 三级钢管旨在满足污水管道建设的特定要求，例如为废水和污水提供可靠的输送管道，并承受其上方的地面和交通荷载。钢管的高强度特性使其即使在严苛的条件下也能保持结构完整性，从而降低泄漏、坍塌和其他形式基础设施故障的风险。
除了优异的机械性能外，A252 三级钢管还为下水道项目提供了经济高效的优势。它易于安装，维护要求低，使用寿命长，有助于节省基础设施整个生命周期的总体成本。此外，该管道兼容多种连接方式和配件，施工灵活高效，能够满足下水道管网的特定需求。
下水道承包商和工程公司可以从 A252 三级钢管的卓越性能中受益，因为它为地下污水输送提供了可靠且持久的解决方案。通过选择 A252 三级钢管等优质材料，他们可以确保下水道系统的长期功能性和弹性，最大限度地降低昂贵的维修和服务中断的风险。
综上所述，A252 三级钢管具有强度高、耐腐蚀、性价比高等优势，是污水管道建设的理想选择。其无缝、坚固的结构以及符合 API 5L 管道规范，使其成为地下污水输送可靠耐用的解决方案。A252 三级钢管能够承受恶劣的地下条件，并提供长期性能，是下水道基础设施项目的首选材料。
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