SA335 P5 seamless steel tubes ferritic alloy pipe for high temperature
SA335 P5 seamless steel tubes heat-resistant steel can resist corrosion in the process of petroleum cracking, P5 heat-resistant steel is used for reheating steam pipes, petroleum cracking pipes, boiler hangers, steam turbine cylinder liners, pump parts, valves, pistons Rods, high-pressure hydrogenation equipment components, fasteners, etc.
High-pressure boiler tubes are a type of boiler tubes and belong to the category of seamless steel tubes. The manufacturing method is the same as that of the seamless pipe, but there are strict requirements on the steel type used in the manufacture of the steel pipe. High-pressure boiler tubes are often under high temperature and high pressure conditions when used, and the tubes will be oxidized and corroded under the action of high-temperature flue gas and water vapor. Steel pipes are required to have high durable strength, high resistance to oxidation and corrosion, and good structural stability. High-pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, gas guide tubes, main steam tubes, etc. of high-pressure and ultra-high pressure boilers.
High-pressure boiler tubes are a type of boiler tubes and belong to the category of seamless steel tubes. The manufacturing method is the same as that of seamless high-pressure boiler tubes, but there are strict requirements on the steel types used in the manufacture of steel pipes. High pressure boiler tubes are often under high temperature and high pressure conditions. High-pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, gas guide tubes, main steam tubes, etc. of high-pressure and ultra-high pressure boilers.
Due to the long-term operation of boiler tubes under high temperature and high pressure conditions, the material will undergo creep, plasticity and toughness will decrease, the original structure will change, and corrosion will occur. Steel pipes used as boilers should have: (1) Sufficient durable strength; (2) Sufficient plastic deformation capacity; (3) Minimal aging tendency and hot brittleness; (4) High resistance to oxidation, coal ash, and natural gas Corrosion, steam and stress corrosion performance at high temperature; (5) Good structural stability and good process performance. Steel grades for high-pressure boiler tubes include carbon steel, pearlitic, ferritic and austenitic stainless heat-resistant steels. In order to improve the thermal efficiency of thermal power generating units and reduce fuel consumption, countries all over the world are focusing on developing large-capacity, high-parameter (high temperature, high pressure) thermal power generating units (above 1000MW). The steam pressure is increased to 31.5-34.3MPa, and the superheated steam temperature reaches 595-650°C, developing towards ultra-high pressure critical pressure, which puts forward higher requirements for high-pressure boiler tubes. For this reason, new steel grades have been developed to meet the needs of high-parameter utility boilers.
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 |
Our Advantages
Three-roll pipe mill
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.
Adequate inventory
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.
Attention to detail
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.
Applicable scene
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.
Detailed Photos
Packaging & Shipping
Company Profile
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.
Certifications
Audited Supplier 
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.
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