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HRB400 (20MnSiV, 20MnSiNb, 20MnTi), the standard value of the yield strength of this steel bar is 400MPa, and the design value is 360MPa. Diameter is 6~50mm, and the elastic modulus is 200GPa.
HRB500E steel bar is a grade 4 threaded steel bar, and the material mark is 500E, where 500 represents its yield strength of 500MPa, and E represents earthquake-resistant steel bar. The yield limit of HRB500E steel bar is greater than 500 pressure, and the diameter is usually 6mm to 100mm.
HRB400E steel bar is a hot-rolled steel bar with the serial number HRB. Its material is carbon steel and contains certain alloy elements. Among them, HRB means Hot-Rolled Bars (hot-rolled steel bars), 400 means that its tensile strength is 400MPa, and E means that it is a type of steel bar with high elasticity and high toughness.
HRB500 steel bar is a kind of ordinary hot-rolled ribbed steel bar for concrete. It is a grade 4 steel bar with a tensile strength of 500 MPa, which is suitable for engineering projects with high strength requirements.
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