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Packaging of seamless pipe

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according to gb2102-88. There are three types of steel pipe packaging: binding, packing, oiling binding or oiling packing. Steel pipe is a long strip of steel with hollow section and no joints around it. Steel pipes have hollow sections and are widely used as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe is lighter in weight when its bending and torsional strength is the same. It is an economic section steel. It is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffold used in construction. Manufacturing ring parts with steel pipes can improve material utilization, simplify manufacturing processes, and save materials and processing hours, such as rolling bearing rings, Jack sleeves, etc. steel pipes have been widely used for manufacturing. Steel pipe is also an indispensable material for all kinds of conventional weapons. Gun barrel and barrel should be made of steel pipe. Steel pipe can be divided into round pipe and special-shaped pipe according to different cross-sectional area and shape. Because the circular area is the largest under the condition of equal circumference, more fluid can be transported by circular pipe. In addition, when the ring section is subjected to internal or external radial pressure, the force is more uniform. Therefore, the vast majority of steel pipes are round pipes
however, circular pipes also have certain limitations. For example, under the condition of plane bending, the bending strength of circular pipes is not as strong as that of square and rectangular pipes. Square and rectangular pipes are commonly used in the framework of some agricultural machines and tools and steel and wood furniture. Special shaped steel pipes with other section shapes are also required according to different purposes
1. Seamless steel pipe for structure (GB /t8162-2008) is a seamless steel pipe for general structure and mechanical structure
2. Seamless steel pipe for fluid transportation (GB /t8163-2008) is a general seamless steel pipe used to transport water, oil, gas and other fluids
3. Seamless steel pipe for low and medium pressure boiler (gb3087-2008) is a high-quality carbon structural steel hot-rolled and cold drawn (rolled) seamless steel pipe for manufacturing superheated steam pipe, boiling water pipe of low and medium pressure boiler and superheated steam pipe, large smoke pipe, small smoke pipe and arch brick pipe for locomotive boiler
4. Seamless steel pipe for high-pressure boiler (GB5310-2008) is a high-quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel pipe used to manufacture the heating surface of water tube boiler with high pressure and above
5. High pressure seamless steel pipe for chemical fertilizer equipment (GB6479-2000) is a high-quality carbon structural steel and alloy steel seamless steel pipe suitable for chemical equipment and pipelines with working temperature of – 40 ~ 400 ℃ and working pressure of 10 ~ 30mA
6. Seamless steel pipe for petroleum cracking (gb9948-88) is a seamless steel pipe suitable for furnace tubes, heat exchangers and pipelines in petroleum refineries
7. The steel pipe for geological drilling (yb235-70) is a steel pipe used by the geological department for core drilling
8. Gb3482 seamless steel pipe for core drilling and diamond core casing are used for seamless steel pipe drilling
9. Oil drilling pipe (yb528-65) is a seamless steel pipe used for internal or external thickening at both ends of oil drilling. The steel pipe is divided into turning wire and non turning wire. The turning wire pipe is connected with the joint, and the non turning wire pipe is connected with the tool joint by butt welding
10. Marine carbon steel seamless steel pipe (gb5213-85) is a carbon steel seamless steel pipe for manufacturing marine class I pressure pipe system, class II pressure pipe system, boiler and superheater. The working temperature of carbon steel seamless steel pipe wall shall not exceed 450 ℃, and the working temperature of alloy steel seamless steel pipe wall shall exceed 450 ℃
11. Seamless steel pipe for automobile half axle sleeve (gb3088-82) is a hot-rolled seamless steel pipe made of high-quality carbon structural steel and alloy structural steel for automobile half axle sleeve and drive axle housing
12. High pressure oil pipe for diesel engine (gb3093-86) is a cold drawn seamless steel pipe for manufacturing high pressure pipe of diesel engine injection system
13. Precision inner diameter seamless steel pipe (GB8713-88) for hydraulic and pneumatic cylinder barrel is a cold drawn or cold rolled precision seamless steel pipe with precision inner diameter for manufacturing hydraulic and pneumatic cylinder barrel
14. Cold drawn or cold rolled precision seamless steel pipe (gb3639-83) is a cold drawn or cold rolled precision seamless steel pipe with high dimensional accuracy and good surface finish for mechanical structure and hydraulic equipment. Selecting precision seamless steel pipe to manufacture mechanical structure or hydraulic equipment can greatly save machining hours, improve material utilization rate and improve product quality
15. Stainless steel seamless steel pipe for structure (GB /T14975-1994) is a hot-rolled (extruded, expanded) and cold drawn (rolled) seamless steel pipe made of stainless steel for corrosion-resistant pipes, structural parts and components widely used in chemical, petroleum, light textile, medical, food, machinery and other industries
16. Stainless steel seamless steel pipe for fluid transportation (GB /t14976-1994) is a hot-rolled (extruded, expanded) and cold drawn (rolled) seamless steel pipe made of stainless steel for fluid transportation
17. Special shaped seamless steel pipe is the general name of seamless steel pipe with other section shapes except circular pipe. According to the shape and size of steel pipe section, it can be divided into equal wall thickness special-shaped seamless steel pipe (code D), unequal wall thickness special-shaped seamless steel pipe (code BD) and variable diameter special-shaped seamless steel pipe (code BJ). Special shaped seamless steel pipe is widely used in various structural parts, tools and mechanical parts. Compared with circular pipe, special-shaped pipe generally has larger moment of inertia and section modulus, and has greater bending and torsion resistance, which can greatly reduce the structural weight and save steel
refer to the table for weight unit: kg /M wall thickness outer diameter 3.5 4.5 5.5 6 32 2.146 2.460 2.762 3.052 3.329 3.594 3.847 38 2.589 2.978 3.354 3.718 4.069 4.408 4.735 42 2.885 3.323 3.749 4.162 4.562 4.951 5.327 45 3.107 3.582 4.044 4 4.495 4.932 5.358 5.771 50 3.477 4.014 4.5 38 5.049 5.549 6.036 6.511 54 3.773 4.359 4.932 5.493 6.042 6.578 7.103 57 3.995 4.618 5.228 5.826 6.412 6.985 7.546 60 4.217 4.877 5.524 6.159 6.782 7.392 7.990 63.5 4.476 5.179 5.869 6.548 7.214 7.867 8.508 68 4.809 5.567 6.313 7.047 7.768 8.477 9.174 70 4.957 5.740 6.511 7.269 8.015 8.749 9.47 0 73 5.179 5.999 6.807 7.602 8.385 9.156 9.914 76 5.401 6.258 7.103 7.935 8.755 9.563 10.358 89 6.363 7.380 8.385 9.378 10.358 11.326 12.281 108 7.768 9.020 10.259 11.486 12.701 13.903 15.093 133 11.178 12.725 14.261 15.783 17.294 18.792   159 13.422 15.290 17.146 18.989 20.821 22.639   219 1 8.601 21.209 23.805 26.388 28.959 31.517   273 23.262 26.536 29.797 33.046 36.283 39.508   325 27.750 31.665 35.568 39.458 43.337 47.202   355 38.897 43.158 47.406 51.641       377 41.339 45.871 50.390 54.897       426 46.777 51.913 57.036 62.147       450    480 530 630 unit: kg /M wall thickness outer diameter 6.5 7 8.5 9 10 12 32 4.088 38 5.049       42 5.691             45 6.172             50 6.973 7.423 8.286 8.699       54 7.614 8.114 9.075 9.538       57 8.095 8.632 9.667 10.167       60 8.576 9.149 10.259 10.796       63.5 9.137 9.754 10.950 11.529       68 9.858 10.530 11.838 12.473       70 10.179 10.876 12.232 12.892 13.539 14.797 17.164 73 10.660 11.394 12.824 13.521 14.205 15.537 18.052 76 11.141 11.912 13.416 14.150 14.871 16.277 18.940 89 13.225 14.156 15.981 16.875 17.756 19.483 22.787 108 16.270 17.436 19.729 20.858 21.973 24.168 28.410 133 20.278 21.751 24.662 26.098 27.522 30.334 35.809 159 24.446 26.240 29.791 31.548 33.293 36.746 43.503 219 34.064 36.598 41.629 44.126 46.610 51.543 61.259 273 42.720 45.920 52.283 55.445 58.596 64.860 77.240 325 51.056 54.897 62.542 66.346 70.137 77.684 92.629 355 55.865 60.076 68.460 72.634 76.796 85.082 101.507 377 59.391 63.873 72.801 77.246 81.679 90.508 108.018 426 67.246 72.332 82.468 87.518 92.555 102.592 122.519 450 71.093 76.475 87.203 92.549 97.882 108.511 129.621 480 75.902 81.654 93.122 98.837 104.540 115.909 138.499 530 83.917 90.286 102.987 109.319 115.638 128.24 0 153.296 630 99.947 107.549 122.716 130.281 137.833 152.902 182.890

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