The milling process of X65 pipe steel and the inspection data of mechanical properties (tensile strength, DWTT and hardness)are introduced in detail.

详细介绍了X65卷板的生产流程和有关力学性能（拉伸性能、冲击性能及硬度）的检验结果。

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The characteristics of corrosion fatigue crack propagation of X60 pipe steel at different loading frequencies and in different corrosion media were studied.

研究了不同腐蚀介质中及加载频率下x 6 0管线钢的腐蚀疲劳裂纹扩展特性。

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After the water quenching of the drill pipe steel grade, the cooling method of drill pipe welds is changed to the quick water cooling instead of the previous high-pressure air cooling.

钻杆钢种水淬化后，焊缝热处理的冷却方式由以前的高压空气冷却转变为快速水冷却。

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He ended up on a circus sideshow traveling through the country with the big steel pipe that went through his head.

最终,在一个全国巡游的马戏团里,大钢管打烂了他的脑袋,结束了他的生命

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Lone Star Technologies, a Dallas producer of steel pipe used in oil wells, fits the bill.

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They know that steel pipe cased in concrete, when engineered correctly, is not going to leak chemicals into their water.

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Luxembourg-based Tenaris sells seamless steel pipe products to oil and gas companies.

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