Customization: | Available |
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After-sales Service: | Hot Rolled Rebar Endless Service |
Warranty: | 10 Years |
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Rebar (short for reinforcing bar), known when massed as reinforcing steel or reinforcement steel, is a steel bar used as a tension device in reinforced concrete and reinforced masonry structures to strengthen and aid the concrete under tension. Concrete is strong under compression, but has low tensile strength. Rebar significantly increases the tensile strength of the structure. Rebar's surface features a continuous series of ribs, lugs or indentations to promote a better bond with the concrete and reduce the risk of slippage.
The most common type of rebar is carbon steel, typically consisting of hot-rolled round bars with deformation patterns embossed into its surface. Steel and concrete have similar coefficients of thermal expansion, so a concrete structural member reinforced with steel will experience minimal differential stress as the temperature changes.
Other readily available types of rebar are manufactured of stainless steel, and composite bars made of glass fiber, carbon fiber, or basalt fiber. The carbon steel reinforcing bars may also be coated in zinc or an epoxy resin designed to resist the effects of corrosion, especially when used in saltwater environments. Bamboo has been shown to be a viable alternative to reinforcing steel in concrete construction. These alternative types tend to be more expensive or may have lesser mechanical properties and are thus more often used in specialty construction where their physical characteristics fulfil a specific performance requirement that carbon steel does not provide.
d mm |
weight kg/m |
4.25d mm |
cm2 | Rebar type/d | |||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||||
10 | 0.616 | 43 | 0.785 | 1.570 | 2.355 | 3.140 | 3.925 | 4.710 | 5.495 | 6.280 | 7.065 | 7.850 | HRB335/10 |
12 | 0.888 | 51 | 1.131 | 2.262 | 3.393 | 4.524 | 5.655 | 6.786 | 7.917 | 9.048 | 10.179 | 11.310 | HRB335/12 |
14 | 1.208 | 60 | 1.539 | 3.078 | 4.617 | 6.156 | 7.695 | 9.234 | 10.773 | 12.312 | 13.851 | 15.390 | HRB335/14 |
16 | 1.578 | 68 | 2.011 | 4.022 | 6.033 | 8.044 | 10.055 | 12.066 | 14.077 | 16.088 | 18.099 | 20.110 | HRB335/16 |
18 | 1.998 | 77 | 2.545 | 5.090 | 7.635 | 10.180 | 12.725 | 15.270 | 17.815 | 20.360 | 22.905 | 25.450 | HRB335/18 |
20 | 2.466 | 85 | 3.142 | 6.284 | 9.426 | 12.568 | 15.710 | 18.852 | 21.994 | 25.136 | 28.278 | 31.420 | HRB335/20 |
22 | 2.984 | 94 | 3.801 | 7.602 | 11.403 | 15.204 | 19.005 | 22.806 | 26.607 | 30.408 | 34.209 | 38.010 | HRB335/22 |
25 | 3.853 | 106 | 4.909 | 9.818 | 14.727 | 19.636 | 24.545 | 29.454 | 34.363 | 39.272 | 44.181 | 49.090 | HRB335/25 |
28 | 4.834 | 119 | 6.158 | 12.316 | 18.474 | 24.632 | 30.790 | 36.948 | 43.106 | 49.264 | 55.422 | 61.580 | HRB335/28 |
32 | 6.313 | 136 | 8.042 | 16.084 | 24.126 | 32.168 | 40.210 | 48.252 | 56.294 | 64.336 | 72.378 | 80.420 | HRB335/32 |
36 | 7.990 | 153 | 10.179 | 20.358 | 30.537 | 40.716 | 50.895 | 61.074 | 71.253 | 81.432 | 91.611 | 101.790 | HRB335/36 |
40 | 9.865 | 170 | 12.566 | 25.132 | 37.698 | 50.264 | 62.830 | 75.396 | 87.962 | 100.528 | 113.094 | 125.660 | HRB335/40 |
45 | 12.485 | 191 | 15.904 | 31.808 | 47.712 | 63.616 | 79.520 | 95.424 | 111.328 | 127.232 | 143.136 | 159.040 | HRB335/45 |
50 | 15.413 | 213 | 19.635 | 39.270 | 58.905 | 78.540 | 98.175 | 117.810 | 137.445 | 157.080 | 176.715 | 196.350 | HRB335/50 |
55 | 18.652 | 234 | 23.758 | 47.516 | 71.274 | 95.032 | 118.790 | 142.548 | 166.306 | 190.064 | 213.822 | 237.580 | HRB335/55 |
60 | 22.192 | 255 | 28.274 | 56.548 | 84.822 | 113.096 | 141.370 | 169.644 | 197.918 | 226.192 | 254.466 | 282.740 | HRB335/60 |
70 | 30.206 | 298 | 38.485 | 76.970 | 115.455 | 153.940 | 192.425 | 230.910 | 269.395 | 307.880 | 346.365 | 384.850 | HRB335/70 |
80 | 39.462 | 340 | 50.265 | 100.530 | 150.795 | 201.060 | 251.325 | 301.590 | 351.855 | 402.120 | 452.385 | 502.650 | HRB335/80 |
90 | 49.942 | 383 | 63.617 | 127.234 | 190.851 | 254.468 | 318.085 | 381.702 | 445.319 | 508.936 | 572.553 | 636.170 | HRB335/90 |
Shandong Zhengde Metal Manufacturing Co., Ltd. is a production and sales company integrating hot-rolled steel coils, cold-rolled steel coils, galvanized steel coils, color-coated steel coils, section steel, steel pipes, steel wires, metal mesh, stainless steel, aluminum, copper and other metal products integrated large enterprises. Five production and sales bases have been formed in Binzhou, Liaocheng, Wuxi, Tianjin, Jinan and Tai'an, with more than 100 production lines, 4 nationally recognized laboratories, 2 technical engineering centers, and 5 enterprise technology centers. Products are exported to more than 50 countries and regions such as North America, South America, Europe, Africa, Oceania, Middle East, and Southeast Asia.