Square pipe is a name for square pipe, that is, equal length of steel pipe. It is a strip processed by a process coil. Square pipe steel, it is a kind of square body pipe, a variety of materials can be formed into a square pipe body, it is medium, most of the square pipe to the pipe as the majority, after unpacking, flat, curled, welded to form a round tube It is then rolled into a square tube and then cut to the required length. The uses of square pipes include construction, machinery manufacturing, steel construction and other projects. Here we will introduce the characteristics of the use of square tube steel and square tube steel specifications table .
Square tube steel features use
1, square tube product description
Square tube is a kind of hollow square cross-section lightweight thin-walled steel tube, also known as steel refrigerated bending profile. It is based on Q235 hot-rolled or cold-rolled strip or coil plate as the parent metal after cold bending and forming high-frequency welding and then made of square section shape size of steel. Hot-rolled extra-thick-walled square tubes are thickened and thickened except for corner thickness and edge flatness, which have reached or even exceeded the level of resistance-weld cold-formed square tubes. It has good mechanical properties, good weldability, cold and hot workability and corrosion resistance, and good low temperature toughness.
2, the use of square tube
The uses of square pipes include construction, machinery manufacturing, iron and steel construction and other projects, shipbuilding, solar power support, steel structure engineering, power engineering, power plants, agriculture and chemical machinery, glass curtain walls, car chassis, airports, boiler construction, highway railings, Housing construction, pressure vessels, oil storage tanks, bridges, power station equipment, hoisting and transporting machinery, and other higher load welded structural components.
Square tube steel performance
1, plasticity
Plasticity refers to the ability of a metal material to undergo plastic deformation (permanent deformation) without breaking under load.
2, hardness
Hardness is a measure of the degree of hardness and hardness of metallic materials. At present, the most commonly used method for measuring hardness in production is the press-in hardness method. It uses a certain geometric shape of the indenter to press the surface of the tested metal material under a certain load, and the hardness value is determined according to the degree of press-in.
The commonly used methods are Brinell hardness (HB), Rockwell hardness (HRA, HRB, HRC) and Vickers hardness (HV).
3, fatigue
The strength, plasticity, and hardness discussed above are all indicators of the mechanical properties of the metal under static loading. In fact, many machine parts work under cyclic loading, under which conditions the parts will fatigue.
4, impact toughness
The load acting on the machine part at a great speed is called impact load. The ability of the metal to resist damage under the impact load is called impact toughness.
5, strength
Strength refers to the resistance of a metallic material to damage (excessive plastic deformation or fracture) under static loading. Because the load has the form of tension, compression, bending, shearing, etc., the strength is also divided into tensile strength, compressive strength, bending strength, shear strength and so on. There is often a certain connection between various strengths, and the tensile strength is generally used as the most basic strength indicator in use.
Square tube steel specification sheet
Square tube calculation formula
Square tube weight calculation formula: 4* wall thickness*(side length-wall thickness)*0.00785
Round tube weight calculation formula: {(perimeter length 3.14)-wall thickness} * wall thickness * 0.02466
Remarks: The above unit is kg/m, where the unit of wall thickness and side length is mm, ie mm.
Conclusion: The relevant information on the use of square steel products and the specification of square tube steel specifications was introduced here. I hope this article will be helpful to everyone. If you still have something you don't understand, you can leave a message to Xiaobian at the bottom. We will answer your questions as soon as possible.
Steel decoration use imported steel
Phlizon`s COB series Grow Light emits all the wavelengths of light which can be fully absorbed by the plants to create.
Best full Specturm designed to perfectly match large areas of indooor plants, especially for Medical Plant.
COB + Dual-chip,most efficient spectrum,high PPFD.Two cooling fans with double ball(import from Japan) and big aluminum heat sink to protect the grow lights from high temperature,good cooling,long lifespan.Photosynthesis and promote healthy growth budding and flowering.
1000w/2000w /3000w COB LED Grow Light, it will give you more options when your plants need different strength of illumination.
Grow Lights are a great choice for growers who are dealing with hot HPS lights and want to change to something that's going to run cooler. Although LED Grow Lights do produce heat,the smaller models might not bring up the temperature of your grow space.Even the more powerful models of LED grow lights that produce a lot of heat still have built-in cooling systems to help prevent the heat from beaming directly down onto your plants.
2000w cob led grow light Features
Indoor grow light
COB series, high power branded CREE COB with high Par value and deeper penetration
VEG/BLOOM and STRONGER switches for each grow stage.
Special spectrum for plant growing to increase the yield.
Building to Harvest: Beneficial for seeding to fruiting stage.
Good quality fans with low noise.
Easy to install by minute
Energy Saving, environmental friendly
3 Years Warranty
Compare led grow light to traditional HPS/MH grow light
WHAT MAKE UP AN EXCELLENT LED GROW LIGHT ?
1.PPFD Value : PPFD is Photosynthetic Photon Flux Density. When you choose a plant light, you should compare the PPFD values of different plant lights. The larger the value, the better the growth of the plant.
2.Actual Power: Because the actual power of the plant light always varies with different conditions, all Amazon sellers use the rated power to describe the power of the product because the rated power is constant. When you pick a LED grow light, the rated power of the plant light is a reference, and more importantly is the actual power.
3.Core Coverage: In addition to the above two, when you choose a plant light, you also need to compare the cover area of different plant lights, of course, the size of the core coverage area. In general, in germination stage, you can hang the plant light higher and the cover area is larger. In flowering stage you can hang the plant light lower and the cover area is smaller because the plant needs more light at this stage. You have to compare different coverage areas to choose the plant light that suits you.
Detailed images of 2000w cob led grow light
Applications
Hydroponics, Horticulture, Agriculture and Greenhouse
Locations: Farm, Exhibition, Garden, Home, Urban, Bonsai, and University Lab
Growth of Fruits, Vegetables, Flowers and so on
Seeding, Rooting, Breeding, Flowering and Fruiting period
Packaging and Shipping
2. By Air or by Sea for batch goods, for FCL; Airport/ Port receiving;
3. Customers specifying freight forwarders or negotiable shipping methods!
4. Delivery Time: stock avaiable sample will be delivered immediately ; 3-7 days for trial order; 7- 25 days for batch goods
Suggestions:
1.Clean the dust inside every 6 months to ensure the good heat dissipation and long life time.
2.Don`t keep too short distance to the plant canopy to avert leaves bleaching.
3. Highly hang the lamp will weaken the energy and affect the growth cycle of the plants, so the lamp should not be hang too high.
4. While taking care of the plants, please spray the leaves and branches 2-3 times everyday, to ensure the plants do not wrinkle a wither, and have no phenomenon of few fruit, and hard pericarp
Trade Terms
Payment: T/T, L/C, Paypal, 30% deposits before production, 70% balance to be paid before deliverying(Western Union are welcome)
Sample will be delivered within 7 working days.
Discounts are offered based on order quanlityes.
MOQ:sample order are acceptable
Delivery ways:DHL,UPS,FedEx,TNT, door to door,by sea,by air,etc.
If you are interested in, and
1.own several store for agriculture in your local market
2.or in the business of grow light equipment
3.or good relationship with grower or greenhouse owner
To be a distributor, max support will be offered:
1.price support
2.technical support
3.new product support
4.24 hours after-sales service online
PH-B-L4,2000W Led Grow Light,Optic Cob Led Grow Lights,450W Cree Cob Grow Light,2000W Cob Led Lights
Shenzhen Phlizon Technology Co.,Ltd. , https://www.philizon.com