BS4449 Steel Reinforcement Rebar

The differences between the, B and C designations are complex and related to structural tolerances. For steel mesh products, B500A grade steel is usually used, and for steel bars, B500B grade steel is used. B500C steel is rarely required, and it is always worthwhile for structural engineers to check whether B500B grade steel can be used instead of B500C, because B500C usually has a significant cost overhead.

Classification :

Steel Rebar

Keywords :

BS4449 Steel Reinforcement Rebar

PRODUCT DETAILS

BS4449 Steel Reinforcement Rebar Description

BS4449 is yet another deformed steel bar standard. It is also differentiated as per European standards. When it comes to manufacturing, the steel bars falling in this standard are also hot rolled, which means that they are also used for general purposes, i.e. in common construction projects. These deformed bars are also available between 12 mm to 30 mm diameter size. And the common lengths that they are available in are 9 m and 12 m. Though, it might vary highly.

 

BS 4449:97 British Rebar Specifications
Rated
Diameter
Nominal Cross Section Area Weight EN To The Ribs (mm) Longitudinal Ribs (mm) Pitch / Step
mm
Ribs Tip Distance
mm
Kg / m
 
Tolerance
%

 
Height Width Height Width
mm m㎡ min. max. min. max. min. max. min. max. min. max. min. max.
6 28.3 0.222 ± 9 0.3 0.6 0.48 0.72 0.3 0.84 0.48 1.2 3,.0 4.8 1.5 2.3
8 50.3 0.395 ± 6.5 0.4 0.8 0.64 0.96 0.4 0.84 0.64 1.6 4.0 6.4 2.0 3.1
10 78.5 0.616 0.5 1.0 0.8 1.2 0.5 0.84 0.8 2.0 5.0 8.0 2.5 3.9
12 113.1 0.888 ± 4.5 0.6 1.2 0.96 1.44 0.6 0.84 0.96 2.4 6.0 9.6 3.0 4.7
16 201.1 1.579 0.8 1.6 1.28 1.92 0.8 0.84 1.28 3.2 8.0 12.8 4.0 6.2
20 314.2 2.466 1.0 2.0 1.6 2.4 1.0 0.84 1.6 4.0 10.0 16.0 5.0 7.8
25 490.9 3.854 1.25 2.5 2.0 3.0 1.25 0.84 2.0 5.0 12.5 20.0 6.2 9.8
32 804.2 6.313 1.60 3.2 2.56 3.84 1.60 0.84 2.56 6.4 16.0 25.6 8.0 12.5
40 1256.6 9.864 2.0 4.0 3.2 4.8 2.0 0.84 3.2 8.0 20.0 32.0 10.0 15.7
50 1963.5 15.413 2.5 5.0 4.0 6.0 2.5 0.84 4.0 10.0 25.0 40.0 12.5 19.6

 

BS 4449:97 Steel Rebar Mechanical Properties
Quality
 
Akma N / mm2< Akma / Pull Rate N/mm2 Elongation Elasticity Total max. % AGT
min. min. min. min.
GR 250 250 Akma x 1.15 22
GR 460 A 460 Akma x 1.05 12 2.5
GR 460 B 460 Akma x 1.08 14 5

 

BS 4449:97 Steel Rebar Chemical Properties
Element GR 250 % max. GR 460 A / B % max. Ribs and Marking Method
Casting Product Casting Product
C 0.25 0.27 0.25 0.27
P 0.060 0.065 0.050 0.055
S 0.060 0.065 0.050 0.055
N 0.012 0.013 0.012 0.013
CE 0.42 0.45 0.51 0.54
                      Mn             Cr+Mo+V              Ni+Cu     
CE = C + ————- + ——————- + —————–
                      6                       5                        15          

 

Scope of Application

Widely used in houses, bridges, roads, especially railways and other civil engineering.

PRODUCT INSPECTION PROCESS


1. Collecting Samples

1. Collecting Samples


2. Dimensional Measurement

2. Dimensional Measurement


3. Chemical Composition Testing

3. Chemical Composition Testing


4. Tensile Testing

4. Tensile Testing


5. UT Test

5. UT Test


6. Bending Test

6. Bending Test


7. Hardness Test

7. Hardness Test


8. Weight Test

8. Weight Test

PACKAGING AND SHIPPING

Reliable Quality

In accordance with international standards, it has strict control and stable performance, and can meet the high requirements of multiple scenarios.

Complete Specifications

A variety of materials and models are available to suit multiple industries, reducing purchases from multiple parties.

Price Competitiveness

With the advantages of scale and supply chain, it has high cost performance and reduces procurement costs.

Stable Supply

Mature production logistics ensure long-term supply and on-time delivery.

Packing and delivery

It relies on its product, price, service and location advantages to establish long-term cooperation with many clients in North America, South America, Europe, Southeast Asia, the Middle East and Africa, and has established a business foundation in Peru, the Philippines, Russia and elsewhere.

 

CUSTOMER VISIT

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FAQ

1.Are you a factory or a trading company

We are a steel plant with large-scale production facilities in China, integrating production, processing, and sales

2. Does the company guarantee the quality and quantity of shipments

This is necessary, in order to establish a long-term partnership with our clients and be friends

3. Which port does the goods export from

Generally, it is Tianjin Port, Qingdao Port, Guangzhou Port, Shanghai Port, and can also be shipped from the port designated by the customer

4. Does the company provide after-sales service

Yes. We welcome customers to raise questions at any time, provide 365 day online answers, discuss cooperation processes, product usage, etc

5.Can we conduct on-site inspections at the factory

Of course, we always welcome overseas friends to visit, exchange, and learn on-site

6. Does it support prepayment of deposit

Of course, the specific amount will be negotiated based on the value of the product and goods

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