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What does "4E" mean on the rebar?
- In addition, the extension rate of seismic reinforcement is not less than 9%, this figure is far higher than the standard of ordinary steel. And it is these technical indicators to enhance the strengthening of the seismic capacity of reinforced concrete, so that its tilt, deformation can be stabilized, not broken, reducing some casualties.s
All knowledge about thread steel!
- Main origin: steel manufacturers in China are mainly distributed in the north and northeast, North China, Tang Gang, such as Shougang steel, bearing steel, such as the northeast, north of Fushun Steel resistant, etc., these two regions accounted for more than 50% of the total output of thread steel.The difference between round bar and round bar is that the surface has longitudinal ribs and transverse ribs, usually with two longitudinal ribs and transverse ribs uniformly distributed along the length direction. The rebar is a kind of small section steel, mainly used for the skeleton of reinforced concrete construction members. In use, some mechanical strength, bending deformation property and welding performance are required. The raw steel billet for the production of threaded steel is carbon structural steel or low alloy structural steel which is treated by calm melting, and the finished steel bar is delivered in hot rolling forming, normalizing or hot rolling state.s
What is the difference between drawing steel and round steel on drawing?
- When drawing steel, it should be used to correct the name: ribbed steel bar, whose name is abbreviated as "HRB" in English. At the same time, according to the characteristic value of yield strength, it can be divided into three grades: HRB335, HRB400 and HRB500, and should be marked when marked.Bar diameter and material should be marked on the drawing, such as material of 35 / Cr12.s
12 of the threaded steel can replace 16 of the screw steel? But the same proportion. Thanks
- Now Tianjin Tiantai into 12 of the price is 3900 yuan a ton, 16 tons of steel a price is 3850 yuan. 12 of thread steel is 50 yuan more expensive than 16 thread steel.s
How much does a futures screw do?
- More than 2000 dollars in one hand. Futures show a ton of the price, he is ten tons per hand. Suppose ten tons is 27000, suppose. If Futures Company receives 10% margin. That's 2700 dollars, one hand.s
What grade of reinforcement is used for cast-in-place floorslab?
- Now the more commonly used high-rise buildings are cast-in-place floorslab.The floor slab, of course, separates the floor and bears and transmits the floor load. At the same time, heat insulation, sound insulation, waterproof and so on.s
What are the listed companies that produce wire rod and thread steel?
- The wire in iron and steel usually refers to a coil of wire material with a diameter of 5.5-14. Most of the use of wire coil machine rolled coil supply, it is also known as wire rod or coil. Wire rod is one of the varieties of steel with great dosage. After rolling, it can be directly used for reinforcement and welding structure of reinforced soil, and can also be used again and again. For example, by drawing into a variety of specifications of steel wire, steel wire rope, and then twisted into woven steel wire and winding and heat treatment to the spring; hot and cold forged into cold forging and rolling into rivets and bolts, screws and so on; by cutting into the heat treatment made of mechanical parts or tools; a common wire made of quality carbon steel and carbon steel.s
What is the length and size of thread steel?
- China's standard recommended nominal diameter of 6, 8, 10, 12, 16, 20, 25, 32, 40, 50mm thread steel series.China's export screw length selection range is 6 ~ 12m.The selection length of Japanese thread steel is 3.5 ~ 10m.s
Characters of Aluminium Die Casting
- Die casting is the process where one item is replicated en mass by using an easily melted material shaped in a higher heat resistant mould.Aluminium die casting uses the same proce...
What is Aluminium Foil Machine
- An aluminium foil sealing machine uses the principle of electromagnetic induction so that aluminium foil on the bottle will instantly generate heat, and then fused on the bottle, t...
Brief Introduction of Aluminium Coil
- Aluminium coil is rolled after casting in a machine, pulled or bent in the process for metal products.Aluminium coil is widely used in electronics, packaging, construction and mach...
Reasons to Avoid a Polypropylene Rug?
- Wearability. Although polypropylene is a tough, hard wearing material it does not have the same life expectancy as wool, you can expect a decent wool carpet to last around 30 year,...
What is Aluminum and how to clean Aluminum Sheet?
- Basic Science, 1.1Aluminium has the chemical symbol AL, it is a soft, white or silver coloured metal. It is non conductive of electricity, a soft, ductile or malleable metal so is ...