HRB400 Deformed Steel Bar 12m Rebar for Construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 m.t./month
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Specification
Standard:
AISI,ASTM,JIS,GB,BS,DIN,API,EN
Technique:
Hot Rolled,Cold Rolled,Cold Drawn,ERW,Forged,Saw,Extruded,EFW,Spring
Shape:
U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment:
Galvanized,Coated,Copper Coated,Color Coated,Oiled,Dry,Chromed Passivation,Polished,Bright,Black,PVDF Coated
Steel Grade:
Q195,Q215,Q235,Q215B,Q235B,RHB335,HRB400,200 Series,300 Series,400 Series,600 Series,SS400-SS490,10#,20#,A53(A,B)
Certification:
ISO,SGS,BV,IBR,RoHS,CE,API,BSI,UL
Thickness:
6-34mm
Width:
6-34mm
Length:
12m
Outer Diameter:
6-32m
Net Weight:
10
Packaging:
Seaworthy packaging
HRB400 Deformed Steel Bar 12m Rebar for Construction
Details of the HRB400 Deformed Steel Bar 12m Rebar for Construction
| Standard & Grade: | GB1499-98 : HRB335,HRB400,HRB500 |
| BS4449-1997 : GR460,GR500 | |
| CAN/CSA-G30.18-M92 : 400W | |
| ASTM A615 : Gr.40, Gr.60 | |
| Diameter: | 6mm;8mm;10mm;12mm;14mm;16mm;18mm;20mm;22mm;25mm;28mm;30mm;32mm;35mm;40mm |
| Length: | 6m,9m,12m |
| Packing: | Bundle packing |
| Origin: | China |
| Application: | Construction,Road,Machinery processing,Welding fields. |
| Delivery time: | 10-25 days |
| Shipment: | By bulk vessel or Container |
| Documents: | Mill Test Certificate,Commercial Invoice,Packing List,Certificate of Origin |
Company Introduction of the HRB400 Deformed Steel Bar 12m Rebar for Construction
CNBM International Corporation is the most import and export platform of CNBM group(China National Building Material Group Corporation) ,which is a state-owned enterprise, ranked in 270th of Fortune Global 500 in 2015.
With its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high quality series of refractories as well as technical consultancies and logistics solution.
Packaging & Delivery of the HRB400 Deformed Steel Bar 12m Rebar for Construction
| Packaging Detail | Sea worthy packing /as per customer's packing instruction |
| Delivery Detail | 15 ~ 40 days after receiving the deposit |
FAQ
| Are you a trading company or manufacturer? | Manufacturer |
| What’s the MOQ? | 1000m2 |
| What’s your delivery time? | 15-20 days after downpayment received |
| Do you Accept OEM service? | Yes |
| what’s your delivery terms? | FOB/CFR/CIF |
| What's the Payment Terms? | 30% as deposit,70% before shipment by T/T |
| Western Union acceptable for small amount. | |
| L/C acceptable for large amount. | |
| Scrow ,Paybal,Alipay are also ok | |
| Why choose us? | Chose happens because of quality, then price, We can give you both. Additionally, we can also offer professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposals. |
| What's your available port of Shipment? | Main Port, China |
| What’s your featured services? | Our service formula: good quality+ good price+ good service=customer's trust |
| Where are your Market? | Covering more than 160 countries in the world |
- Q: How do steel rebars affect the overall crack resistance of concrete structures?
- Steel rebars play a crucial role in enhancing the crack resistance of concrete structures. When embedded within the concrete, rebars provide reinforcement and increase the tensile strength of the structure. Concrete is inherently strong in compression but weak in tension, and steel rebars help overcome this weakness by absorbing the tensile forces that may cause cracks in the concrete. The presence of rebars in concrete structures allows for the redistribution of stress, preventing cracks from propagating and spreading. As the concrete undergoes shrinkage or experiences external loads, the rebars act as a reinforcement grid and help to resist the formation and expansion of cracks. By absorbing and distributing the tensile stresses, rebars ensure that the concrete remains intact and can withstand higher loads without significant cracking. Moreover, steel rebars also contribute to the overall durability of concrete structures. When corrosion of the rebars occurs due to exposure to moisture or other environmental factors, it can lead to an increase in volume, causing internal pressure and potential cracking of the concrete. However, the use of corrosion-resistant rebars, such as epoxy-coated or stainless steel rebars, can significantly mitigate this risk and improve the crack resistance of the structure. In summary, steel rebars enhance the crack resistance of concrete structures by providing reinforcement, increasing tensile strength, redistributing stress, and preventing crack propagation. Their presence ensures that the structure can withstand various types of loads and environmental conditions, improving both the strength and durability of the concrete.
- Q: What is the effect of exposure to chemicals on steel rebars?
- Exposure to chemicals can have various effects on steel rebars depending on the specific chemical involved. Corrosive chemicals, such as acids or salts, can cause corrosion and weaken the steel rebars over time. This can compromise the structural integrity of reinforced concrete structures, leading to potential safety hazards. On the other hand, some chemicals like epoxy or protective coatings can be applied to steel rebars to enhance their resistance to corrosion and extend their lifespan. Overall, the effect of exposure to chemicals on steel rebars can range from degradation to protection, highlighting the importance of proper material selection and maintenance in construction projects.
- Q: Why is the earthing device forbidden to use thread steel instead of round steel as lap steel bar?
- H, R, and B are the first letters in English for hot-rolled (Hotrolled), ribbed (Ribbed) and reinforced (Bars) three words. Hot rolled ribbed bar is divided into two levels, HRB335 (old No. 20MnSi), three HRB400 (20MnSiV, 20MnSiNb, old No. 20Mnti), four grade HRB500 three grade.
- Q: How do steel rebars enhance the bond between concrete and reinforcement?
- Steel rebars enhance the bond between concrete and reinforcement through various mechanisms. Firstly, the presence of rebars in concrete increases the mechanical interlock between the two materials. As concrete is poured around the rebars, it fills the gaps between the steel bars, creating a strong bond when it hardens. This mechanical interlock helps to prevent the separation of concrete and reinforcement, especially under tensile loads. Secondly, steel rebars enhance the bond by providing additional surface area for adhesion. The rough texture of the rebars allows the concrete to grip onto the steel surface, creating a stronger bond. This adhesion is further improved by the corrosion products that form on the surface of the steel rebars over time. These products create a rougher surface, increasing the bond strength between the concrete and reinforcement. Thirdly, rebars act as load transfer devices in concrete structures. When external forces are applied to the structure, the rebars distribute and transfer these forces to the surrounding concrete. This load transfer mechanism helps to improve the overall structural integrity and performance of the concrete element. Additionally, steel rebars also enhance the bond between concrete and reinforcement through their ability to resist deformation. Under tensile loads, the rebars elongate and absorb the stress, preventing the concrete from cracking. This prevents the development of cracks that could weaken the bond between the two materials. In summary, steel rebars enhance the bond between concrete and reinforcement by providing mechanical interlock, increased surface area for adhesion, load transfer capabilities, and resistance to deformation. These factors collectively contribute to the overall strength, durability, and performance of reinforced concrete structures.
- Q: How are steel rebars anchored into existing concrete?
- Steel rebars are typically anchored into existing concrete by using different methods such as epoxy adhesive, mechanical anchoring systems, or by simply embedding the rebars into the fresh concrete during construction.
- Q: How are steel rebars used in the construction of tunnels and underground passages?
- Steel rebars are used in the construction of tunnels and underground passages to reinforce the concrete structures. They are embedded within the concrete to increase its strength and prevent cracking or collapsing under the pressure exerted by the surrounding soil or water. The rebars provide structural integrity and durability, ensuring the tunnels and passages can withstand the forces and stresses they encounter.
- Q: How do steel rebars impact the durability of concrete structures?
- The durability of concrete structures is significantly influenced by steel rebars. Adding steel rebars improves the strength and overall performance of concrete, making it more resistant to various external forces and extending its lifespan. To begin with, steel rebars offer structural reinforcement to concrete structures. Concrete has relatively low tensile strength, making it susceptible to cracking and failure under tensile stresses. By incorporating steel rebars into the concrete, these stresses are effectively distributed throughout the structure, preventing the formation of cracks and enhancing its load-bearing capacity. This reinforcement ensures that the concrete structure can withstand the forces it experiences, whether from gravity, wind, earthquakes, or other external factors. Additionally, steel rebars play a vital role in corrosion prevention in concrete structures. Concrete is highly alkaline, creating a protective environment for embedded steel. However, factors like moisture exposure, chloride ions, and carbonation can break down this protective layer over time, leading to steel corrosion. Corrosion weakens the rebars and causes the surrounding concrete to crack and spall, compromising the structure's durability. By using steel rebars with appropriate coatings or stainless steel, the risk of corrosion is significantly reduced, enhancing the structure's longevity and durability. Furthermore, steel rebars contribute to the durability of concrete structures by providing dimensional stability. Concrete tends to shrink and expand due to temperature and moisture changes, which can result in cracking and deformation. Incorporating steel rebars helps minimize these movements by providing restraint and stabilizing the structure, preventing excessive cracking and maintaining its integrity over time. In conclusion, steel rebars play a crucial role in enhancing the durability of concrete structures. They provide structural reinforcement, prevent corrosion, and ensure dimensional stability. By incorporating steel rebars into concrete, structures become stronger, more resistant to external forces, and have an extended lifespan. This ultimately leads to safer and more durable buildings and infrastructure.
- Q: How are steel rebars measured and priced in the market?
- Steel rebars are typically measured and priced in the market based on their diameter and length. The diameter of the rebars is measured in millimeters, and the length is usually in meters. The pricing is determined by factors such as the current market demand, the cost of raw materials, and any additional processing or customization. Additionally, the pricing may also vary depending on the grade or quality of the steel rebars, with higher-grade rebars generally commanding a higher price.
- Q: Are steel rebars resistant to lightning strikes?
- No, steel rebars are not inherently resistant to lightning strikes.
- Q: Can steel rebars be galvanized for added protection?
- Indeed, an additional protective measure can be taken for steel rebars by galvanizing them. Galvanization involves the application of a thin layer of zinc onto the surface of the steel rebar. This zinc coating serves as a sacrificial layer, effectively safeguarding the rebar against corrosion. It creates a barrier between the steel and its surroundings, effectively blocking moisture and other corrosive elements from penetrating the rebar's surface. Galvanized steel rebars are widely utilized in construction ventures, particularly in regions prone to corrosion, such as coastal areas or environments with high humidity levels. Through the galvanization process, the longevity and durability of the steel rebar are significantly enhanced, rendering it highly resistant to rust and corrosion.
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HRB400 Deformed Steel Bar 12m Rebar for Construction
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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