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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:

Steel Rebar

Whatsapp: +86-18063408933

E-mail: sales03@bzsteelgroup.com

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
Rated Diameter	Nominal Cross Section Area	Kg / m	Tolerance %	Height		Width		Height		Width		Pitch / Step mm		Ribs Tip Distance mm
mm	m㎡	Kg / m	Tolerance %	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	± 6.5	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
Quality	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
Element	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.

PACKING AND DELIVERY

The products were exported to more than 30 countries, including Africa, Sri Lanka, Turkey, Vietnam, Laos, Brazil, Thailand, the Middle East, the United Arab Emperor, Morocco, Morocco, Spain, the United States, New Zealand, Iran, Iran, etc.

FACTORY APPEARANCE

The company has advanced production equipment and technical strength, adopts internationally advanced production technology and quality control system to ensure that each batch of steel can meet or exceed international standards. Equipped with a complete product production line, the main equipment includes cutting machines, bending machines, punching machines, water jet cutting machines, polishing machines, plate cutting machines, wire drawing machines, etc.

Baozhong Steel (Shandong) Group Co., Ltd.

APPLICATION AREAS

Our products are complete in variety, sufficient in stock, of excellent quality, low in price and considerate in service. At the same time, we are also the designated supplier of many large enterprises, providing steel for major project renovations in many countries.

CUSTOMER VISIT

Steel Rebar