Versatile Right Angle Rectangular Steel Pipe - Your Reliable OEM, ODM, and Wholesale Solution
- Model
- ytdr-310
Item specifics
- Thickness
- On demand customization
- OD
- On demand customization
- length
- On demand customization
- Tolerance
- On demand customization
- Grade
- CE,LEED,BV,PHD&EPD,BC1,EN10210,EN10219,ISO9000,AST
- Delivery time
- 7-30 days
- OEM/ODM/OBM
- accept
- Supply capacity
- Annual output of 5 million tons
- Certification
- CE,LEED,BV,PHD&EPD,BC1,EN10210,EN10219,ISO9000,AST
Review
Description
Right angle rectangular steel pipe(oem odm obm)
Overview of Right Angle Rectangular Steel Pipe
The R angle of a right angle rectangular steel pipe is different from a regular circular arc square pipe. Right angle rectangular pipe is a type of right angle rectangular pipe with an R angle not greater than one time the wall thickness. Sharp angle rectangular tube: When the wall thickness is not greater than 3mm, the R angle is not greater than 1mm; When the wall thickness is 3-8mm, the R angle should not exceed 2mm; When the wall thickness is above 8mm, R is not greater than 3mm as a sharp angle rectangular tube.
2、 The research and development purpose of right angle/sharp angle square rectangular tubes
In the following usage scenarios of square rectangular tubes, such as mechanical guides, agricultural machinery skeletons, square rectangular tubes for steel and wood furniture, and square rectangular tubes for curtain wall construction, high-precision square rectangular tubes are required due to the need for tolerance fit. Among them, the most important aspect of concern for these customers is the flatness of square rectangular tubes. Therefore, Yuantai Derun Group has specially developed rectangular steel pipes with right angles. At present, the production of square rectangular pipes mainly adopts cold drawing and continuous bending of steel plates, and the flatness of ordinary finished steel pipes cannot meet the needs of customers.
3.Production process of right corner rectangular steel pipe
The forming technology of right angle/sharp angle square rectangular pipes adopts progressive roller extrusion technology to manufacture square pipes, improving the machining accuracy of work rolls and continuously adjusting the assembly spacing of roll systems, thereby accurately controlling the plane size of finished steel pipes.
1. The square tube is processed and manufactured using progressive roll extrusion technology, and the plane rebound of square tubes of different materials and specifications is collected for variance analysis and experimental design, and the plane rebound curve of square tubes is drawn. (Note: ① Welding right angle square tube can use hot-rolled strip steel as raw material, which can be formed by cold bending or rounded tube and then square, and then heat treated; ② Seamless right angle square tube, which is made of hot-rolled seamless tube directly formed by hot rolling or formed by cold bending)
2. Based on the theory and practice of roll flattening, design and manufacture rolls with different final rolling convexities to meet the strength requirements of processing products with different materials for production.
3. Strictly control the machining accuracy of the work roll and improve the flatness control accuracy of the finished square tube.
4. By continuously adjusting the assembly spacing of the roller system, it ensures the parallelism of the product relative to the two planes.
4、 Specification of right angle square rectangular tube:
The size range of right angle rectangular steel pipes is: side length 15mmx30mm~1200mmx800mm, wall thickness 0.5mm~60mm;
5、 Right angle rectangular tube material
Domestic standards (GB/T700-2006, GB/T69-2015, GB/T/1591-2018): Q195, Q235B, Q355 (B/C/D), Q420 (B/C/D/E), Q460 (B/C/D/E), 20 #, 45 #, etc.
European Standard (EN10025-1993): S235JR, S235J0, S355J2H, S355JRH, S355J0H, S460NL, S460ML.
American Standard (ASTM A106/A500): Gr.A, Gr.B, Gr.C, Gr.D, Gr50, Gr60, Gr65.
Japanese standard (JIS G3466): SS330, SS400, STK490, etc.
6、 Executive standard for right angle rectangular tubes
National standards: GB/T6728-2017, GB/T3094-2012
European standards: DIN EN 10210, DIN EN 10219
American standard: ASTM A500
Japanese Standard: JISG 3466
Australian Standard: AS 1163
7、 Application of Right Angle Rectangular Steel Pipe
Mechanical guide rails, agricultural machinery framework, steel and wood furniture, curtain wall construction, large steel structures, mechanical equipment, etc.
8、 Right angle rectangular steel pipe sample
8.Who we are?
Tianjin Yuantai Derun group has 18 wholly-owned subsidiaries, of which Tianjin Yuantai Technology Development Co., Ltd. was founded in 2014 to produce super large diameter and super thick wall rectangular tubes, which are scarce in the market. This kind of non-standard pipe is made of longitudinal submerged arc welded pipe or seamless steel pipe as raw material, and the raw material is extruded twice to form a square rectangular pipe meeting the quality requirements. Moreover, Tianjin Yuantai Technology Development Co., Ltd. can also produce various specifications of special-shaped tubes such as right angle tubes, octagonal tubes and trapezoidal tubes, and undertake tempering and annealing processes. With the support of professional technicians and equipment, our next goal is to develop straight out special-shaped tubes.
9.Product detail
900*900*25mm
(the picture shows 900mm * 900mm * 25MM modified pipe produced by Yuantai Derun)
900*900*25mm S355J0H
0 degree right angle tube
The picture shows 300mm * 300mm * 14mm right angle pipe produced by yuantaiderun
10、 Production specifications and technical standards
Tianjin Yuantai Technology Development Co., Ltd. has 4 production units and more than 50 employees, which undertake large-diameter thick wall rectangular tubes, seamless rectangular tubes, special-shaped tubes, hot-rolled rectangular tubes, square tube specifications of 80 * 80mm-1200 * 1200mm, rectangular tube specifications of 50 * 100mm-1200 * 1500mm, wall thickness of 2.75mm-50 mm, in accordance with the standard GB / t3091-2015, and any specification and material in this range (such as Q235 / q355 / Q390 / Q420 / Q460 / high-strength steel / weathering steel, etc.) can be customized. The outgoing process of hot-rolled right angle pipe is particularly advanced. Two technical methods of on-line hot rolling four corners and overall heating are adopted, which has the advantages of power saving and high efficiency.
150mm*400mm*25mm
The picture shows 150mm * 400mm * 25MM right angle pipe produced by Yuantai Derun
0 degree right angle tube
The picture shows 120mm * 400mm * 20MM right angle pipe produced by Yuantai Derun
0 degree right angle tube
The picture shows 80mm * 240mm * 20MM right angle pipe produced by Yuantai Derun
500*500*40mm
The picture shows the effect of 500mm * 500mm * 40MM modified drawing tube annealing heat treatment produced by Yuantai Derun
11、 Process flow
Inspection of round pipe (raw material) - feeding - hydraulic propulsion - roll extrusion (round square change) - Inspection of steel pipe (overall dimension, flatness, perpendicularity and R angle) - blanking (inspection of steel pipe straightness and twist) - shaping of mouth end (there will be deformation area at the head end during steel pipe deformation) - sawing and trimming - Inspection and spraying standard - Warehousing
12、 Processing business
The main purpose of the new intelligent tempering furnace equipment of Tianjin yuantaiderun group is to remove the internal stress in the steel pipe. The methods of removing internal stress include natural aging and artificial aging. Natural aging is that the steel pipe is placed in the open field for more than half a year, and it will form slowly, so as to eliminate or reduce the residual stress. There are two methods of artificial prescription:
① Heat treatment to remove internal stress: heat the steel pipe to 550 ~ 650 ℃ for stress relief annealing, which saves time than natural aging and removes residual stress more thoroughly
② Vibration stress relief: in short, it is to eliminate the stress of steel pipe by vibration. VSR is to apply additional alternating stress or deformation to the workpiece by using the resonance of the workpiece. When the additional alternating stress is superimposed with the residual stress and absorbs energy through the internal friction of the material to reach or exceed a certain threshold value of the material, the workpiece will undergo micro or macro viscoelastic plastic mechanical deformation, so as to reduce and homogenize the residual stress in the workpiece and stabilize its dimensional accuracy.
The square rectangular tube after internal stress relief annealing ensures the mechanical properties, especially in the aspects of yield strength, tensile strength, elongation and impact compressive capacity, and realizes the effect of 1 + 1 > 2.
Effect of modified drawing tube annealing heat treatment
Effect of modified drawing tube annealing heat treatment
Test distortion of modified drawn pipe
The picture shows the test distortion of modified drawn pipe produced by yuantaiderun after annealing heat treatment
13、 Engineering performance
1. The main column of the 128M Ferris wheel of Shenzhen OCT adopts the inclined octagonal tube produced by Yuantai Derun
Oblique octagonal tube
Oblique octagonal tube made dy yuantaiderun
Construction site
Installation of Ferris wheel column completed
Construction site
The installation of the central shaft of the ferris wheel is completed
2.The construction of Google tower in Singapore adopts 500mm * 500mm * 36mm modified pipe produced by Yuantai derun, made of s355j2h, with a total of 4000 tons.
Google building Singapore
Singapore Google building
500*500*36 S355J2H
Materials of Google building project in Singapore
3. For the establishment of Sichuan Tianfu airport, 90mm * 250mm * 20MM modified pipe produced by YuantaiDerun is adopted
4. The headquarters of Beijing Chaoyang aiib was established by adopting 500mm * 520mm * 22mm modified pipe produced by Yuantai technology
5. National Convention and Exhibition Center (Tianjin) venue
At the "China Building Science Conference and green smart building Expo", the first exhibition of the National Convention and Exhibition Center (Tianjin) held on June 24, 2021, Tianjin yuantaiderun group provided square tube (200) for the construction of the national exhibition × seven hundred × 8mm，200 × seven hundred × 10mm，200 × seven hundred × 12mm，200 × seven hundred × 16mm，200 × eight hundred × 8mm，200 × eight hundred × 10mm，200 × eight hundred × 12mm，200 × eight hundred × 16mm) is mainly used for column structure and supporting structure. The umbrella shaped steel structure of the main body of the main entrance landing Hall of the exhibition hall is made of "yuantaiderun" brand structural steel pipe products.
As we all know, square pipe is a kind of light-weight thin-walled steel pipe with hollow square section, also known as steel cold-formed profile. In addition to wall thickness thickening, the corner size and edge flatness of hot-rolled extra thick wall square pipe reach or even exceed the level of resistance welding cold-formed square pipe. Tianjin yuantaiderun group welcomes customers to actively consult various special-shaped pipe orders to challenge all kinds of impossibility!
