Wall thickness of PAIP KELULI YANG LANCAR is relatively thick, relatively small diameter thick. But the diameter is restricted, and its applications are limited, and production costs, especially for Diameter Besar PAIP KELULI YANG LANCAR production costs are relatively high.
There are mainly three kinds of forming technology of seamless square tube: Digulung panas, cold-drawn and welded. For the cold drawn square tube, the ability of withstanding localized concentrated load is weak, the welding process produced pipe welds are the weak link, do not apply to the construction of high-end residential buildings.
Standard: ASTM A500, KELENGKAPAN A53, EN 10210 ,EN 10219 ,JIS G 3466 ,BS 1387, BS 6323 ,IS : 1161,IS : 3601,IS : 3074 IS : 4923, DARIPADA 1626, DARIPADA 2394.
Diameter keluar:10 *10mm – 500 * 500 mm
Ketebalan dinding: 0.5mm – 20mm
Panjang: 0.1 – 18 m as per customer’s request
Keluli gred: AS: Q195, Q215, Q235, Q345
ASTM: GR A, Gr B, GR C, GR D, DC01, DC03, 1008, 1010 JIS: SS330, SS440, SS490, SPHD, SPHE
EN BS: S185, S235, S235JR, S235 G2H, S275, S275JR, S355JRH, S355J2H
akhir: Potongan Segiempat, Burr removed
Permukaan: ringan berminyak, celup panas tergalvani, Electro galvanized, Hitam
rawatan haba: Bright Annealed, Black Annealed
Standard Corner Radius(Mechanical Sizes:)
Diameter (inci) | Ketebalan dinding (inci) | Radius Tolerance (inci) |
1/2 untuk 1 1/2 | 0.028 | 1/32 untuk 1/16 |
1/2 untuk 2 1/2 | 0.035 | 1/32 untuk 1/16 |
1/2 untuk 4 | 0.049 | 3/64 untuk 5/64 |
1/2 untuk 4 1/8 | 0.065 | 1/16 untuk 7/64 |
3/4 untuk 4 1/8 | 0.083 | 5/64 untuk 1/8 |
Ke atas 4 1/8 untuk 6 | 0.095 | 3/16 untuk 5/16 |
1 untuk 4 1/8 | 0.095 | 3/32 untuk 5/32 |
Ke atas 4 1/8 untuk 6 | 0.109 | 3/16 untuk 5/16 |
1 1/4 untuk 4 | 0.109 | 1/8 untuk 13/64 |
Ke atas 4 untuk 6 | 0.120 | 3/16 untuk 5/16 |
1 1/4 untuk 4 | 0.120 | 3/16 untuk 5/16 |
Ke atas 4 untuk 6 | 0.134 | 7/32 untuk 7/16 |
2 untuk 4 | 0.148 | 3/16 untuk 5/16 |
Ke atas 4 untuk 8 | 0.148 | 7/32 untuk 7/16 |
2 untuk 8 | 0.165 | 1/4 untuk 1/2 |
2 untuk 8 | 0.180 | 1/4 untuk 1/2 |
2 1/2 untuk 4 | 0.203 | 5/16 untuk 9/16 |
Ke atas 4 untuk 8 | 0.203 | 5/16 untuk 9/16 |
2 1/2 untuk 8 | 0.220 | 3/8 untuk 5/8 |
Currently, the domestic general uses cold drawn or welded tube production. While the foreign mainly uses hot rolling process, fully able to meet the requirements of high-end buildings. The high-end hot-rolled seamless square tube construction is with good bearing properties, good weldability, low production costs and high production efficiency.
kelurusan
Mechanical Sizes: Max. 1/16″ dalam 3 kaki
Structural Sizes: Max. 1/8″ x Number of feet of total length divided by 5
Ketebalan dinding
mekanikal & Structural Sizes: ± 10% nominal ketebalan dinding
Squareness of Sides
Mechanical Sizes: Max: ± b = c x 0.006″
b = Tolerance for out-of-square
c = Largest external dimension across flats
Structural Sizes: Adjacent sides may deviate from 90 ° by ± 2 °
It is understood that the hot-rolled seamless square tube due to structural features of its own, effectively circumvent the connection between the column and beam welding defects and leading to performance degradation, can significantly improve the problem of low efficiency of the traditional low-rise concrete structure, large pollution, waste of resources and other issues; Pada masa yang sama, the product is with such good performance as the uniform force, high dimensional accuracy, high strength and good impact resistance, can improve the seismic resistance of high-end architecture, will be widely used in steel high-rise buildings, airports and other construction, and has become the main support materials of the construction industry in the future, with great market prospects.
anda mesti log masuk untuk menghantar komen.