: | |
---|---|
: | |
Grade: | |
: | |
État de disponibilité: | |
Quantité: | |
BS4449:2005 B500B is a British standard specification for hot-rolled ribbed steel bars used for the reinforcement of concrete structures. The "B500B" designation indicates the steel grade, which has a minimum yield strength of 500 megapascals (MPa) and a minimum tensile strength of 550 MPa.
Hot-rolled ribbed steel bars are commonly used in construction projects to provide reinforcement and improve the strength and durability of concrete structures. The ribbed surface of the bars enhances the bond between the steel and concrete, ensuring effective transfer of stresses and improving the overall performance of the reinforced concrete.
BS4449:2005 B500B specifies the dimensional and mechanical properties of the steel bars, including the diameter, mass per unit length, and the permissible deviations. It also provides requirements for the chemical composition, weldability, and ductility of the steel.
This standard ensures that the hot-rolled ribbed steel bars meet the necessary quality and performance criteria for use in construction projects in the United Kingdom. Compliance with BS4449:2005 B500B is typically required by engineers, architects, and contractors to ensure the safety and reliability of reinforced concrete structures.
High-Strength, Corrosion-Resistant Galvanized Stainless Steel Round Bar for Durable, Eco-Friendly Construction and Engineering Projects.
BS4449:2005 B500B is a British standard specification for hot-rolled ribbed steel bars used for the reinforcement of concrete structures. The "B500B" designation indicates the steel grade, which has a minimum yield strength of 500 megapascals (MPa) and a minimum tensile strength of 550 MPa.
Hot-rolled ribbed steel bars are commonly used in construction projects to provide reinforcement and improve the strength and durability of concrete structures. The ribbed surface of the bars enhances the bond between the steel and concrete, ensuring effective transfer of stresses and improving the overall performance of the reinforced concrete.
BS4449:2005 B500B specifies the dimensional and mechanical properties of the steel bars, including the diameter, mass per unit length, and the permissible deviations. It also provides requirements for the chemical composition, weldability, and ductility of the steel.
This standard ensures that the hot-rolled ribbed steel bars meet the necessary quality and performance criteria for use in construction projects in the United Kingdom. Compliance with BS4449:2005 B500B is typically required by engineers, architects, and contractors to ensure the safety and reliability of reinforced concrete structures.
High-Strength, Corrosion-Resistant Galvanized Stainless Steel Round Bar for Durable, Eco-Friendly Construction and Engineering Projects.
Exemple de motif de côtes pour le grade B500B
Les barres d'armature comportent au moins deux rangées parallèles de nervures transversales.Lorsqu'il y a deux ou trois rangées de nervures transversales, une rangée présente un angle opposé aux autres rangées ;lorsque la barre d'armature comporte quatre rangées de nervures transversales, deux rangées sont inclinées dans la direction opposée aux deux autres rangées.La figure montre un exemple de grade B500B avec 4 rangées de nervures transversales. |
Exemple de motif de côtes pour le grade B500B
Les barres d'armature comportent au moins deux rangées parallèles de nervures transversales.Lorsqu'il y a deux ou trois rangées de nervures transversales, une rangée présente un angle opposé aux autres rangées ;lorsque la barre d'armature comporte quatre rangées de nervures transversales, deux rangées sont inclinées dans la direction opposée aux deux autres rangées.La figure montre un exemple de grade B500B avec 4 rangées de nervures transversales. |
Composition | C | P | S | Cu | N |
---|---|---|---|---|---|
min(%) | - | - | - | - | - |
maximum(%) | 0.22 | 0.05 | 0.05 | 0.8 | 0.012 |
Composition | C | P | S | Cu | N |
---|---|---|---|---|---|
min(%) | - | - | - | - | - |
maximum(%) | 0.22 | 0.05 | 0.05 | 0.8 | 0.012 |
Seuil de rentabilité σs Mpa | Allongement à la rupture ou Elongatio nδ % |
---|---|
485~650 | ≥4 |
Seuil de rentabilité σs Mpa | Allongement à la rupture ou Elongatio nδ % |
---|---|
485~650 | ≥4 |