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Product Description
15CrMoG seamless steel pipe chemical composition%
Carbon: 0.12~0.18, Silicon: 0.15~0.40, Manganese: 0.40~0.740, Phosphorus: ≤0.025, Sulfur: ≤0.025, Chromium: 0.80~1.20, Molybdenum: 0.45~0.60
The principle of purifying hydrogen in 15CrMoG seamless steel pipe is that when the hydrogen to be purified is passed into one side of 15CrMoG seamless steel pipe at 300-500 ° C, hydrogen is adsorbed on the wall of 15CrMoG alloy tube, due to the lack of 4d electron layer of palladium Two electrons, which can form unstable chemical bonds with hydrogen (this reaction between palladium and hydrogen is reversible), under the action of palladium, hydrogen is ionized into protons with a radius of 1.5×1015m, and the lattice constant of palladium It is 3.88×10-10m (at 20°C), so it can pass through the 15CrMoG seamless steel pipe, and under the action of palladium, the protons combine with electrons to form hydrogen molecules again, and escape from the other side of the 15CrMoG seamless steel pipe. On the surface of 15CrMoG seamless steel pipe, undissociated gas is impermeable, so 15CrMoG seamless steel pipe can be used to obtain high-purity hydrogen.
Specifications and appearance quality of high-pressure boiler tubes: GB5310-2008 "Seamless Steel Tubes for High-Pressure Boilers" hot-rolled tubes have an outer diameter of 22-530mm and a wall thickness of 20-70mm. Cold-drawn (cold-rolled) tubes have an outer diameter of 10-108mm and a wall thickness of 2.0-13.0mm.
15CrMoG seamless steel pipe is a steel widely used in the electric power industry, and it has high thermal strength when used at 500°C-550°C. When the use temperature is higher than 550°C, its thermal performance will be significantly reduced. 15CrMoG seamless steel pipe is mainly used for high and medium pressure pipelines with a steam parameter of 510°C, steam guide pipes, and heater pipes with a pipe wall temperature of 550°C.
15CrMoG seamless steel pipe belongs to chrome-molybdenum alloy heat-resistant steel pipe, the implementation standard is GB 5310-2008 seamless steel pipe standard for high-pressure boilers; it is applied to steam pipes, headers and wall temperature of high- and medium-pressure boilers with steam parameters of power plant boilers at 510 °C Superheater tubes, forgings and elastic components at 540°C.
Zhengde hot-rolled seamless steel pipe is a long strip of steel with a hollow section and no joints around it. The steel pipe has a hollow cross-section and is widely used as a pipeline for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and certain solid materials. Compared with solid steel such as round steel, seamless steel pipe is lighter in weight when the bending and torsional strength is the same. It is an economical section steel and is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes and automobile transmission shafts. , bicycle racks and steel scaffolding used in building construction, etc. The use of seamless steel pipes to manufacture ring parts can improve the utilization rate of materials, simplify the manufacturing process, save materials and processing hours, such as rolling bearing rings, jack sets, etc., which have been widely used in steel pipes. Hot-rolled seamless steel pipe is also an indispensable material for various conventional weapons. Gun barrels, barrels, etc. must be made of steel pipes.
thick Φ | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 8 | 8.5 | 9 | 10 | 12 |
32 | 2.146 | 2.46 | 2.762 | 3.052 | 3.329 | 3.594 | 3.847 | 4.088 | ||||||
38 | 2.589 | 2.978 | 3.354 | 3.718 | 4.069 | 4.408 | 4.735 | 5.049 | ||||||
42 | 2.885 | 3.323 | 3.749 | 4.162 | 4.562 | 4.951 | 5.327 | 5.691 | ||||||
45 | 3.107 | 3.582 | 4.044 | 4.495 | 4.932 | 5.358 | 5.771 | 6.172 | ||||||
50 | 3.477 | 4.014 | 4.538 | 5.049 | 5.549 | 6.036 | 6.511 | 6.973 | 7.423 | 8.286 | 8.699 | |||
54 | 3.773 | 4.359 | 4.932 | 5.493 | 6.042 | 6.578 | 7.103 | 7.614 | 8.114 | 9.075 | 9.538 | |||
57 | 3.995 | 4.618 | 5.228 | 5.826 | 6.412 | 6.985 | 7.546 | 8.095 | 8.632 | 9.667 | 10.167 | |||
60 | 4.217 | 4.877 | 5.524 | 6.159 | 6.782 | 7.392 | 7.99 | 8.576 | 9.149 | 10.259 | 10.796 | |||
63.5 | 4.476 | 5.179 | 5.869 | 6.548 | 7.214 | 7.867 | 8.508 | 9.137 | 9.754 | 10.95 | 11.529 | |||
68 | 4.809 | 5.567 | 6.313 | 7.047 | 7.768 | 8.477 | 9.174 | 9.858 | 10.53 | 11.838 | 12.473 | |||
70 | 4.957 | 5.74 | 6.511 | 7.269 | 8.015 | 8.749 | 9.47 | 10.179 | 10.876 | 12.232 | 12.892 | 13.539 | 14.797 | 17.164 |
73 | 5.179 | 5.999 | 6.807 | 7.602 | 8.385 | 9.156 | 9.914 | 10.66 | 11.394 | 12.824 | 13.521 | 14.205 | 15.537 | 18.052 |
76 | 5.401 | 6.258 | 7.103 | 7.935 | 8.755 | 9.563 | 10.358 | 11.141 | 11.912 | 13.416 | 14.15 | 14.871 | 16.277 | 18.94 |
89 | 6.363 | 7.38 | 8.385 | 9.378 | 10.358 | 11.326 | 12.281 | 13.225 | 14.156 | 15.981 | 16.875 | 17.756 | 19.483 | 22.787 |
108 | 7.768 | 9.02 | 10.259 | 11.486 | 12.701 | 13.903 | 15.093 | 16.27 | 17.436 | 19.729 | 20.858 | 21.973 | 24.168 | 28.41 |
133 | 11.178 | 12.725 | 14.261 | 15.783 | 17.294 | 18.792 | 20.278 | 21.751 | 24.662 | 26.098 | 27.522 | 30.334 | 35.809 | |
159 | 13.422 | 15.29 | 17.146 | 18.989 | 20.821 | 22.639 | 24.446 | 26.24 | 29.791 | 31.548 | 33.293 | 36.746 | 43.503 | |
219 | 18.601 | 21.209 | 23.805 | 26.388 | 28.959 | 31.517 | 34.064 | 36.598 | 41.629 | 44.126 | 46.61 | 51.543 | 61.259 | |
273 | 23.262 | 26.536 | 29.797 | 33.046 | 36.283 | 39.508 | 42.72 | 45.92 | 52.283 | 55.445 | 58.596 | 64.86 | 77.24 | |
325 | 27.75 | 31.665 | 35.568 | 39.458 | 43.337 | 47.202 | 51.056 | 54.897 | 62.542 | 66.346 | 70.137 | 77.684 | 92.629 | |
355 | 38.897 | 43.158 | 47.406 | 51.641 | 55.865 | 60.076 | 68.46 | 72.634 | 76.796 | 85.082 | 101.507 | |||
377 | 41.339 | 45.871 | 50.39 | 54.897 | 59.391 | 63.873 | 72.801 | 77.246 | 81.679 | 90.508 | 108.018 | |||
426 | 46.777 | 51.913 | 57.036 | 62.147 | 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 | 104.54 | 115.909 | 138.499 | |||||||
530 | 83.917 | 90.286 | 102.987 | 109.319 | 115.638 | 128.24 | 153.296 | |||||||
630 | 99.947 | 107.549 | 122.716 | 130.281 | 137.833 | 152.902 | 182.89 |
The seamless steel pipe produced by the three-roll mill for hot-rolling seamless steel pipe has high precision. Because of the cross-rolling with the mandrel, the rolling action is repeated many times in one pass, which greatly improves the accuracy of the wall thickness and is not easy to produce. Defects such as scratches, ears, and green lines; the flexibility in production is large, and the pass size can be changed with the help of the clutch of the roll.
Standing inventory of carbon seamless tubes, seamless special-shaped tubes, alloy seamless tubes, precision tubes. Various types of seamless steel pipes with a specification of 5-426*0.5-60mm and a length of 2-16m. The cold-rolled precision bright tubes produced by our factory have smooth appearance, uniform wall thickness, no oxide layer, and high precision. The inner hole of the steel pipe can be divided into round type, spline type, plum blossom type, etc. It is widely used in automobiles, motorcycles, electric power, petrochemicals, ships, aerospace, bearings, pneumatic components, oil cylinders, boiler equipment, medical equipment, fitness equipment and other industries.
No matter how to choose the hot-rolled seamless steel pipe, its quality cannot be ignored. It must be noted that there should be no defects on the surface, such as small cracks or scars, etc., and that the thickness of the pipe wall is the same to ensure uniformity. The physical comparison is still very important. Only after the basic comparison of the physical objects is done, can the steel pipes that meet the needs be selected. The processing technology of each seamless steel pipe is different, which will also affect its application field. Now it is generally processed by cold drawing and hot rolling, and the processing effect of the two and the application of steel pipes will also have certain differences.
Hot-rolled seamless pipes specifically include low and medium pressure boiler steel pipes, high-pressure boiler steel pipes, seamless steel pipes for ships, petroleum cracking steel pipes, seamless steel pipes for high-pressure fertilizer equipment, oil jacket steel pipes, pipeline steel pipes, hollow sucker rods, and ordinary fluid steel pipes. , structural seamless steel pipes and imported alloy steel pipes, etc., with rich varieties and complete specifications, widely used in petroleum, chemical, electric power, boilers, ships, machinery and other industries, and have been sold all over the world.
Quality first: production and inspection in strict accordance with production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere service can last for a long time.
Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products integrated large enterprises. Five production and sales bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan and Tai'an, with more than 100 production lines, 4 nationally recognized laboratories, 2 technical engineering centers, and 5 enterprise technology centers. Products are exported to more than 50 countries and regions such as North America, South America, Europe, Africa, Oceania, Middle East, and Southeast Asia.