Bs 4449, which will be used in conjunction with the new european standard bs en 10080, has been revised to reflect the three ductility classes of eurocode 2. Bs4449 grade 500 deformed steel bar for construction. Bsi bs 4449 steel for the reinforcement of concrete. The assistance derived from these sources is hereby acknowledged. The reasons for specifying such a large number 18 of. Bs 44491997 460b carbon steel bars for the reinforcement. Deformed bar rebar characteristics al jazeera steel. Covers plain round steel bars in grade 250 and deformed high yield steel bars in grade 460. The standard bs 44491997 covers plain round steel bars in grade 250,and deformed type 1 and type 2 high yield steel bars in grade 460,the latter in two ductility categories are 460a and 460b. The british standard for reinforcing steel, bs4449, clearly states that the. The differences between the current british standards and pr en 10080 are summarized in table 2.
The grade 500b covers steel delivered in the form of bars,coils products. Product specification melewar industrial group berhad. This standard sets out requirements for plain round steel bars in grade 250 only and. Gr460 grade is a material grade and designation defined in bs4449 standard. This table illustrates the difference in properties between grade 460 mpa steel. The standard is used to specify all normal technical requirements for reinforcing. Recommended diameters for reinforcement the is specification is 1786 specifies nominal sizes of 4,5,6,7,8,10,12,16, 18, 20, 22, 25, 28, 32, 36, 49, 45 and 50 mm bars. Product specification bs4449 free download as pdf file. Elite design royal borough of kensington and chelsea. When you convert 460 nmm2 to ksi it gives you 66 ksi. Properties of reinforcing steels tensile test on reinforcing bar table 1 specified characteristic tensile properties standardgrade yield tensileyield elongation elongation class stress nmm2 ratio a 5 % a gt % bs 4449. The yield strength of the steel bars was found to be higher than bs4449 grade 460b, nst. Part 1, 1967 60,000 psi for medium tensile bars 70,000 psi for high tensile bars. Pdf steel bars are important engineering materials for structural.
Abstract contains provisions for three steel grades, all of 500mpa characteristic yield strength, but with different ductility. Gr460 grade steel is a structural billet steel for structural applications. Bs 4449 reinforcing steel bs 8666 reinforcing scheduling concrete structures ec2 5 concrete six density classes of lightweight concrete are defined in en2061. Alibaba manufacturer directory suppliers, manufacturers. Bs 4449, carbon steel bars for the reinforcement of concrete. Pdf steel bars are important engineering materials for structural application. Carbon steel bars for the reinforcement of concrete cedd.
Standard grade mechanical properties chemical composition wt% y. Buy bs standard bs4449 grade 460 deformed steel bar reinforcing steel bar bs 4449. Gr460 grade steel is lower in strength as compare to a61575 steel. It should be noted that for steels of either strength level, each may possess a specific level of ductility, shown by the use of. Bs 4449 is intended for manufacturers, fabricators and purchasers of ribbed reinforcing steel bars, coils and decoiled products for the reinforcement of concrete structures. Rebar in coil technical specification emirates steel. Bs4449 historical revision information steel for the reinforcement of concrete. Deformed bars produced at qatar steel conform to various national and international standards such as, bs 4449.
Standard specification and grade chemical composition maximum % by mass. This table illustrates the difference in properties between grade 460 mpa steel and grade 500 mpa reinforcing bars as defined by the british standard b4449. It provides designations based on the grade of steel, the product form and dime. Bs 44492005 500b weldable reinforcing steel shanghai. Type high yield deformed bar specification m s 146. Hot rolled reinforcing bars grades 460b b500b b500c produits certi. Platinum sponsor in the national industries and construction expo organized by expotag 2012. Product specification bs4449 for forthcoming issue. Assessment of quality ofsteel reinforcing bars used in. What is the equivalent steel grade in astm to bs 4449. Hence, plain round bar, grade 250, was dropped from bs 4449 its use in structural applications was in severe decline anyway.
You have clicked a page that seems to be very popular. All bsi british standards available online in electronic and print formats. Latest news kuwait steel sponsors and participates in kuwait industries union 2019 marathon. Cited by this resource is cited by 1 document show citations. Hot rolled reinforcing bars grades 460b b500b b500c chemical composition country standard speci. Bs4449 is a british material standard for carbon steel bars for concrete reinforcement for strengthening application. Material requirements for steel and concrete structures. Reinforcement quality assurance and certification and. Home publication index british standards institution bs 4449. Bs449 21969 structural steel in building slideshare. This table illustrates the difference in properties between grade 460 mpa steel and grade 500 mpa reinforcing bars as defined by the british standard. High yield steel bars for the reinforcement of concrete. Pdf chemical and mechanical properties of reinforcing steel. Grade fe 415 is already obsolete in the developed world.
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