How to Choose the Right casing tube for Your project: A Guide for Beginners
When it comes to completing a project, selecting the right casing tube is essential. Casing tubes are used to protect and support a variety of structures, from Pipelines to buildings. Choosing the right casing tube for your project can be a daunting task, especially for beginners. To help you make the right decision, here is a guide to choosing the right casing tube for your project.
First, consider the purpose of the casing tube. Different types of casing tubes are designed for different purposes. For example, steel casing tubes are often used for pipelines, while concrete casing tubes are used for foundations. Knowing the purpose of the casing tube will help you narrow down your options.
| Tensile and Hardness Requirements | |||||||||
| grade | Yield Strength MPa | Tensile Strength | Hardness a,c | Specified Wall thickness | Allowable Hardness Variation b | ||||
| Type | Total Elongation Under Load | min MPa | max | ||||||
| min | max | HRC | HBW | mm | HRC | ||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| H40 | — | 0.5 | 276 | 552 | 414 | — | — | — | — |
| J55 | — | 0.5 | 379 | 552 | 517 | — | — | — | — |
| K55 | — | 0.5 | 379 | 552 | 655 | — | — | — | — |
| N80 | 1 | 0.5 | 552 | 758 | 689 | — | — | — | — |
| N80 | Q | 0.5 | 552 | 758 | 689 | — | — | — | — |
| R95 | — | 0.5 | 655 | 758 | 724 | — | — | — | — |
| L80 L80 | 1 | 0.5 | 552 | 655 | 655 | 23 | 241 | — | — |
| L80 | 9Cr 13Cr | 0.5 | 552 | 655 | 655 | 23 | 241 | — | — |
| 0.5 | 552 | 655 | 655 | 23 | 241 | — | — | ||
| C90 | 1 | 0.5 | 621 | 724 | 689 | 25.4 | 255 | £12.70 | 3 |
| 12.71 to 19.04 | 4 | ||||||||
| 19.05 to 25.39 | 5 | ||||||||
| ³ 25.40 | 6 | ||||||||
| T95 | 1 | 0.5 | 655 | 758 | 724 | 25.4 | 255 | £12.70 | 3 |
| 12.71 to 19.04 | 4 | ||||||||
| 19.05 to 25.39 | 5 | ||||||||
| ³ 25.40 | 6 | ||||||||
| C110 | — | 0.7 | 758 | 828 | 793 | 30 | 286 | £12.70 | 3 |
| 12.71 to 19.04 | 4 | ||||||||
| 19.05 to 25.39 | 5 | ||||||||
| ³ 25.40 | 6 | ||||||||
| P110 | — | 0.6 | 758 | 965 | 862 | — | — | — | — |
| Q125 | 1 | 0.65 | 862 | 1034 | 931 | b | — | £12.70 | 3 |
| 12.71 to 19.04 19.05 | 4 | ||||||||
| 5 | |||||||||
| a In case of dispute, laboratory Rockwell C hardness testing shall be used as the referee method. | |||||||||
| b No hardness limits are specified, but the maximum variation is restricted as a manufacturing control in accordance with 7.8 and 7.9. | |||||||||
| c For through-wall hardness tests of grades L80 (all types), C90, T95 and C110, the requirements stated in HRC scale are for maximum mean hardness number. | |||||||||
Next, consider the environment in which the casing tube will be used. Different types of casing tubes are designed to withstand different environmental conditions. For example, stainless steel casing tubes are designed to withstand corrosion, while plastic casing tubes are designed to withstand extreme temperatures. Knowing the environment in which the casing tube will be used will help you select the right material.
Finally, consider the size and shape of the casing tube. Different types of casing tubes come in different sizes and shapes. For example, round casing tubes are often used for pipelines, while rectangular casing tubes are often used for foundations. Knowing the size and shape of the casing tube you need will help you select the right one.
By following these steps, you can ensure that you select the right casing tube for your project. With the right casing tube, you can ensure that your project is completed safely and efficiently.
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