HRB335 Reinforcing Steel Rebar
Strong Structural Support – Reinforcing steel is specifically designed for use in reinforced and prestressed concrete, greatly enhancing the strength, load-bearing capacity, and durability of concrete structures.
Variety of Shapes and Types – Available in smooth round bars, ribbed bars, and torsion bars, rebar provides multiple options to suit different construction requirements and design specifications.
Flexible Form and Delivery – Supplied in both straight and coiled forms, reinforcing steel offers flexibility for transportation, handling, and installation in various project settings.
Effective Bonding with Concrete – With options like smooth and deformed steel bars, rebar ensures strong adhesion within concrete, improving structural integrity and resistance to cracking under stress.
Reinforcing steel refers to steel for reinforced concrete and prestressed reinforced concrete, which is circular in cross-section and sometimes square with rounded corners. Including smooth round bars, ribbed bars, torsion bars. Rebar for reinforced concrete refers to 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.
Classification of steel rebars
There are many types of rebar, usually classified by chemical composition, production process, rolling shape, supply form, diameter size, and use in the structure:
1. According to the diameter
Steel wire (diameter 3~5mm), thin steel bar (diameter 6~10mm), thick steel bar (diameter greater than 22mm).
2. According to mechanical properties
Class I rebar (300/420); Class II rebar (335/455); Class III rebar (400/540) and Class IV (500/630)
3. According to the production process
Hot-rolled, cold-rolled, 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 bars, tension bars, erecting bars, distribution bars, stirrups, etc.
The mechanical properties of steel bars shall meet the requirements of the following table
Grade | Nominal Diameter mm | σs(or σp0.2)Mpa | σbMPa | δ5% |
HRB335 | 6-25 28-50 | 335 | 490 | 16 |
HRB400 | 6-25 28-50 | 400 | 570 | 14 |
HRB500 | 6-25 28-50 | 500 | 630 | 12 |
The steel bars arranged in reinforced concrete structures can be divided into the following types according to their functions:
① Stressed bar - steel bar that bears tensile and compressive stress.
② Stirrups - bear part of the oblique tensile stress and fix the position of the stress bars, which are mostly used in beams and columns.
③ Frame erection bars - used to fix the position of the steel hoop in the beam to form the steel skeleton in the beam.
④Distribution ribs - used in roof slabs and floor slabs, arranged vertically with the reinforcing bars of the slabs, evenly transferring the weight to the reinforcing bars, fixing the position of the reinforcing bars, and resisting thermal expansion and contraction caused by temperature deformation.
⑤Others - Structural ribs configured due to structural requirements of components or construction and installation needs. Such as waist bars, embedded anchor bars, prestressed bars, rings, etc.
According to rolling shape
①Smooth steel bars: Grade I steel bars (Q300 steel bars) are all rolled into a smooth round section, and the supply form is coiled, with a diameter of not more than 10mm and a length of 6m~12m.
② Ribbed steel bars: There are three types of spiral, herringbone and crescent shapes. Generally, grade II and III steel bars are rolled into a herringbone shape, and grade IV steel bars are rolled into a spiral shape and a crescent shape. Crescent rib reinforcement: The longitudinal section of the transverse rib is crescent-shaped and does not intersect with the longitudinal rib. ③ Steel wire (divided into low carbon steel wire and carbon steel wire) and steel strand.
④Cold-rolled and twisted steel bars: cold-rolled and cold-twisted.
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.
FAQ
Q: About the price of the product
A: Due to the rise and fall of raw material prices, as well as factors such as the national power restriction policy, product prices will also fluctuate. Welcome to contact us to get the latest product price.
Q: Can you arrange shipment?
A: Of course, we have multiple warehouse locations as well as regular forwarders, and can get the best price from most shipping companies. Provide professional transportation services.
Q: How long will the delivery take?
A: Products that are in stock or only need simple processing, generally 5-15 days. If there is no stock, according to the required product quantity and the usual production time of this product, our professional sales staff will give you an approximate delivery time. According to past experience, in most cases, the delivery time will not exceed 45 days.
Q: What services do you provide?
A: 1. Provide samples, including conventional steel products and some customized steel structure products;
2. Support third-party product quality testing and provide various certificates
3. Provide pick-up and drop-off customer inspection service
4. Provide customized steel structure service
5. Provide simple steel processing, such as cutting, drilling, galvanizing, polishing and other services
6. Provide one-stop service, from product production to product transportation.
7. Provide 24 hours online service
Q: How can I get your quotation as soon as possible?
A: You can contact us through various contact channels on the website, such as: phone number, email, WhatsApp, WeChat, etc. We will reply within one day. When you contact us, you can provide us with the product specifications you need, such as size, quantity, material, drawings and other information. In this way, we will be able to provide you with the most accurate product quotation immediately.
