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GB/T 14976 · ASTM A312 · EN 10216-5 · 无缝管 · 标准对照

不锈钢无缝管标准对照:GB/T 14976、ASTM A312/A269 与 EN 10216-5

流体输送用不锈钢无缝管常见三套标准:GB/T 14976、ASTM A312/A269、EN 10216-5。用途、试验与牌号体系不同,不能只看外径壁厚。
不锈钢无缝管采购常遇到三套标准,用途与试验要求不同:
| 项目 | GB/T 14976 | ASTM A312 | ASTM A269 | EN 10216-5 | |---|---|---|---|---| | 用途 | 流体输送用不锈钢无缝管 | 高温/腐蚀用奥氏体无缝与焊接管 | 通用无缝与焊接管 | 承压用无缝管 | | 牌号体系 | 06Cr19Ni10 等 | TP304/TP316L 等 | TP304/TP316L 等 | 1.4301/1.4404 等 | | 试验 | 水压/涡流/超声等按合同 | 水压或无损检测 | 水压或无损检测 | 承压要求更严,含冲击等 | | 尺寸标准 | GB/T 14976 内规定 | A999/A1016 等 | A1016 等 | EN 10216-5 内规定 |
选型提醒:
1) 承压/高温用途优先按项目规范选择(如 EN 10216-5 或 ASTM A312 的适用等级); 2) 一般流体输送可参考 GB/T 14976,但出口项目需确认客户接受的标准; 3) 核对牌号写法差异(TP304 vs 304 vs 1.4301),并确认试验项目(水压、涡流、超声、晶间腐蚀); 4) 无缝管还要关注外径/壁厚公差、弯曲度、端部加工与长度。
合同明确:标准 + 牌号 + 尺寸 + 试验项目 + 交货状态,四项缺一不可。
Compiled by SteelWe editors and industry experts. For industry exchange only; not trading or investment advice. Cite the source when quoting.
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