construction reinforcement for reinforced concrete diameter 20 mm reinforced bars wholesale deformed steel bar threaded bar

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Product Overview

Description



Products Description


Rebar refers to steel used for reinforced concrete and prestressed reinforced concrete. Its cross section is circular, sometimes square with rounded corners. Including plain round reinforcement, ribbed reinforcement and torsion reinforcement.
The reinforcement for reinforced concrete refers to the straight or coiled steel used for reinforcement of reinforced concrete. Its shape is divided into smooth round reinforcement and deformed reinforcement, and the delivery status is straight and coiled.
The plain round steel bar is actually the small rouhttps://baogangsteel.en.alibaba.com/productgrouplist-919857942/steel_rebar.htmlnd steel and round steel of ordinary low carbon steel. Deformed reinforcement is the reinforcement with ribs on the surface, usually with 2 longitudinal ribs and transverse ribs evenly distributed along the length. The shape of transverse rib is spiral, herringbone and crescent. It is expressed in millimeters of nominal diameter. The nominal diameter of deformed reinforcement is equivalent to the nominal diameter of plain round reinforcement with equal cross section. The nominal diameter of reinforcement is 8-50 mm, and the recommended diameters are 8, 12, 16, 20, 25, 32 and 40 mm. Steel grade: 20MnSi, 20MnV, 25MnSi, BS20MnSi. The reinforcement mainly bears tensile stress in concrete. Due to the role of ribs, deformed steel bars have greater bonding capacity with concrete, so they can better withstand the action of external forces. Steel bars are widely used in various building structures. Especially large, heavy, light thin-walled and high-rise building structures.


Reinforcement Steel
Rebar for reinforced concrete refers to the straight or coil-shaped steel used for reinforced concrete reinforcement. Its shape is divided into two types: smooth round steel bar and deformed steel bar, and the delivery state is straight and coiled.
The smooth round steel bar is actually the small round steel and coil of ordinary low carbon steel. Deformed bars are surface-ribbed bars, usually with 2 longitudinal ribs and transverse ribs evenly distributed along the length. The shape of the transverse rib is spiral, herringbone and crescent shape. Expressed in millimeters of nominal diameter. The nominal diameter of deformed bars corresponds to the nominal diameter of smooth round bars of equal cross-section. The nominal diameter of the rebar is 8-50 mm, and the recommended diameters are 8, 12, 16, 20, 25, 32, and 40 mm. Steel grades: 20MnSi, 20MnV, 25MnSi, BS20MnSi. Reinforcing bars are mainly subjected to tensile stress in concrete. Due to the action of ribs, deformed steel bars have greater bonding ability with concrete, so they can better withstand the action of external forces. Steel bars are widely used in various building structures. Especially large, heavy, light thin-walled and high-rise building structures.



Classification


There are many kinds of reinforcement, which are usually classified according to chemical composition, production process, rolling shape, supply form, diameter size, and use in structure:
1、 By diameter
Steel wire (diameter 3~5mm), fine reinforcement (diameter 6~10mm), coarse reinforcement (diameter greater than 22mm)。
2、 By mechanical propertieshttps://baogangsteel.en.alibaba.com/contactinfo.html
Grade I reinforcement (300/420); Grade II reinforcement (Grade 335/455); Grade III reinforcement (400/540) and Grade IV reinforcement (500/630)
3、 By production process
Hot-rolled, cold-rolled and cold-drawn steel bars, as well as heat-treated steel bars made of Grade IV steel bars, have higher strength than the former.
4、 According to the role in the structure
Compression reinforcement, tension reinforcement, erection reinforcement, distribution reinforcement, stirrup, etc
The reinforcement configured in the reinforced concrete structure can be divided into the following types according to its function:
1. Stress-bearing reinforcement - reinforcement bearing tensile and compressive stress.
2. Stirrup - bear a part of the diagonal tensile stress and fix the position of the stressed bar, which is mostly used in beams and columns.
3. Erecting reinforcement - used to fix the position of steel hoop in the beam and form the reinforcement framework in the beam.
4. Distribution reinforcement - used in the roof slab and floor slab, vertically arranged with the load-bearing reinforcement of the slab, to evenly transmit the weight to the load-bearing reinforcement, and fix the position of the load-bearing reinforcement, as well as to resist the temperature deformation caused by thermal expansion and contraction.
5. Others - structural reinforcement configured for structural requirements of components or construction and installation. Such as waist reinforcement, embedded anchor reinforcement, prestressed reinforcement, ring, etc.
By rolling profile
① Smooth steel bar: Grade I steel bar (Q300 steel bar) is rolled into smooth circular section, and the supply form is round, with a diameter of no more than 10mm and a length of 6m~12m.
② Ribbed reinforcement: there are three types of spiral, herringbone and crescent. Generally, Grade II and III reinforcement is rolled into herringbone, and Grade IV reinforcement is rolled into spiral and crescent.
③ Steel wire (including low carbon steel wire and carbon steel wire) and steel strand.
④ Cold rolled and twisted steel bar: cold rolled and cold twisted.
Diameter size:
Steel wire (diameter 3~5mm), fine reinforcement (diameter 6~10mm), thick reinforcement (diameter greater than 22mm).


Product Show










Specification


Diameter (mm)
Weight (kg/m)
12m Weight (kg/pc)
Quantity (pc/ton)
6
0.222
2.665
375
8
0.395
4.739
211
10
0.617
7.404
135
12
0.888
10.662
94
14
1.209
14.512
69
16
1.580
18.954
53
18
1.999
23.989
42
20
2.468
29.616
34
22
2.968
35.835
28
25
3.856
46.275
22
28
4.837
58.047
17
30
5.553
66.636
15
32
6.318
75.817
13
40
9.872
118.464
8
45
12.494
149.931
7
50
15.425
185.1
5




Company Profile






Company Introduction
Baogang (Shandong) Iron and Steel Co., Ltd. is a comprehensive company for steel production and trading. Its business includes production, processing, distribution, logistics and import& export of steel. https://baogangsteel.en.alibaba.com/contactinfo.htmlOur main products are pre-painted, hot rolled steel coils, cold rolled steel coils, galvanized steel coils, copper sheet /strip / tube, prepainted steel coil etc.
We has passed ISO9001 quality management system certification us produce various types of steel with CE standards.




Product packaging








FAQ


Q1: Are you factory or trading company?
A: We are manufacturer and trader. welcome you visit our factory.
Q2: Can you guarantee your product quality?
A: Best quality is our principle all the time. We have 2 times QC one by one.
Our vision: to be world-class professional, reliable and outstanding steel supplier.
Q3: Do you provide samples? is it free or extra 2?
A: The sample could can provide for customer with free, but the freight will be covered by customer
account. The sample freight will be returned to customer account after we cooperate.
Q4: What is your MOQ?
A: We welcome your trial order MOQ 25 T to be stuffed in 1*20GP
Large quantity can reduce your cost.
Q5:What is your main market?
A: Our steel products are mainly exported to Africa, Southeast Asia, the Middle East, Central Asia,
Europe, North & South America and other countries and regions.


0.1917 s.