Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes

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Customization: Available
After-sales Service: Hot Rolled Seamless Steel Pipe Endless Service
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  • Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
  • Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
  • Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
  • Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
  • Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
  • Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
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Overview

Basic Info.

Model NO.
12CrMoG
Technique
Hot Rolled
Material
Carbon Steel
Surface Treatment
Black
Usage
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Section Shape
Round
Custom Made
Yes
Custom Cycle
7-15 Days
Production Standards
ASTM/JIS/AISI/DIN/BS/En/GB
Payment Term
30%T/T Advance + 70% Balance
Alloy or Not
Low Alloy
MOQ
3tons
Lengh
Customized
Advantage
Wear Resistance, Machinability, Easy Welding
Specification2
Zd-Hrssp20e10/20/30/40/50/60/70
Specification3
Zd-Hrssp20e80/90/102/118/120
Standard1
ASTM a 6/a 6m-07 BS 4-1:1993 En 10024 JIS G 3192
Transport Package
Export Standard Package/as Request
Specification
According to customer requirements
Trademark
ZHENGDE
Origin
China
HS Code
7304192000
Production Capacity
65000 Tons/Month

Product Description

The seamless steel pipe is made by perforating the whole round steel, and the steel pipe without weld seam on the surface is called seamless steel pipe. According to the production method, seamless steel pipes can be divided into hot-rolled seamless steel pipes, cold-rolled seamless steel pipes, cold-drawn seamless steel pipes, extruded seamless steel pipes, and pipe jacking. According to the cross-sectional shape, seamless steel tubes are divided into two types: round and special-shaped, and special-shaped tubes have various complex shapes such as square, oval, triangular, hexagonal, melon-shaped, star-shaped, and finned tubes. The maximum diameter is up to 900mm and the minimum diameter is 4mm. According to different uses, there are thick-walled seamless steel pipes and thin-walled seamless steel pipes. Seamless steel pipes are mainly used as petroleum geological drilling pipes, cracking pipes for petrochemical industry, boiler pipes, bearing pipes, and high-precision structural steel pipes for automobiles, tractors, and aviation.
Uses of seamless steel pipes:
1. General-purpose seamless steel pipes are rolled from ordinary carbon structural steels, low-alloy structural steels or alloy structural steels, with the largest output, and are mainly used as pipes or structural parts for conveying fluids.
2. According to different purposes, there are three types of supply:
a. Supply according to chemical composition and mechanical properties;
b. Supply according to mechanical properties;
c. Supply according to hydraulic test. Steel pipes supplied by Types a and b, if used to withstand liquid pressure, are also subject to hydrostatic testing.
3. There are many kinds of seamless pipes for special purposes, such as seamless pipes for boilers, seamless pipes for chemical power, seamless steel pipes for geological use and seamless pipes for petroleum.
Seamless steel pipes have a hollow cross-section and are widely used as pipes for transporting fluids, such as pipes for transporting oil, natural gas, gas, water, and certain solid materials. Compared with solid steel such as round steel, the steel pipe is lighter in weight when the bending and torsional strength is the same, and it is an economical section steel.
Widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipes, automobile drive shafts, bicycle frames, and steel scaffolds used in construction, etc. Steel pipes are used to make ring parts, which can improve material utilization, simplify manufacturing processes, and save materials and processing Man-hours have been widely used to manufacture steel pipes.
Seamless steel pipe production process:
1.Main production process of hot-rolled seamless steel pipe (△Main inspection process):
Tube billet preparation and inspection△→tube billet heating→piercing→pipe rolling→pipe tube reheating→diameter setting (reduction)→heat treatment△→finished tube straightening→finishing→inspection△(non-destructive, physical and chemical, bench inspection)→warehousing
2.Main production process of cold-rolled (drawn) seamless steel pipe:
Billet preparation→pickling and lubrication→cold rolling (drawing)→heat treatment→straightening→finishing→inspection
The production process of general seamless steel pipe can be divided into cold drawing and hot rolling. The production process of cold rolling seamless steel pipe is generally more complicated than hot rolling. Sizing test, if the surface does not respond to cracks, the round pipe will be cut by a cutting machine, and cut into a billet with a length of about one meter. Then enter the annealing process. Annealing should be pickled with acidic liquid. When pickling, pay attention to whether there is a large amount of foaming on the surface. If there is a large amount of foaming, it means that the quality of the steel pipe cannot meet the corresponding standards. In appearance, the cold-rolled seamless steel pipe is shorter than the hot-rolled seamless steel pipe. The wall thickness of the cold-rolled seamless steel pipe is generally smaller than that of the hot-rolled seamless steel pipe, but the surface looks brighter than the thick-walled seamless steel pipe. Much rougher, and the caliber does not have too many burrs.
The delivery state of hot-rolled seamless steel pipes is generally delivered after heat treatment in the hot-rolled state. After passing the quality inspection, the hot-rolled seamless steel pipe must be strictly hand-selected by the staff. After the quality inspection, the surface must be oiled, followed by multiple cold-drawing experiments, and the perforation experiment must be carried out after the hot-rolling treatment. , If the perforation diameter is too large, it will be straightened and corrected. After straightening, it is sent to the flaw detector by the transmission device for flaw detection test, and finally it is labeled, arranged in specifications and placed in the warehouse.
The outer diameter of hot-rolled seamless pipe is generally greater than 32mm, and the wall thickness is 2.5-200mm. The outer diameter of cold-rolled seamless steel pipe can reach 6mm, and the wall thickness can reach 0.25mm. Rolling has higher dimensional accuracy than hot rolling.

Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel PipesZhengde 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
Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
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.
Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
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.
Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
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

Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel PipesRefinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes
Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes

Packaging & Shipping

Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes

Company Profile

Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel PipesShandong 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.
Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes

Certifications

Refinery Used 6m 12m Factory Supply Custom Dimensions Hot Rolled 12crmog Seamless Steel Pipes

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