BS4449 Steel Reinforcement Rebar
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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 | |||||||||
| Kg / m | Tolerance % | Height | Width | Height | Width | ||||||||||
| mm | m㎡ | 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 | 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 |
| 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 | ||
| 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.
| USA | Japan | Germany | U.K. | France | Italy | Spain | Switzerland | China | ||
| AISI/SAE | JIS | W‐nr. | DIN | BS | EN | AFNOR | UNI | UNE | SS | GB |
| A570.36 | STKM 12A | 1.0038 | RSt.37‐2 | 4360 | ‐ | E 24‐2 | ‐ | ‐ | 1311 | 15 |
| - | STKM 12C | - | - | 40 C | - | Ne | - | - | - | - |
| 1015 | ‐ | 1.0401 | C15 | 080M15 | ‐ | CC12 | C15, C16 | F.111 | 1350 | 15 |
| 1020 | ‐ | 1.0402 | C22 | 050A20 | 2C | CC20 | C20, C21 | F.112 | 1450 | 20 |
| 1213 | SUM22 | 1.0715 | 9SMn28 | 230M07 | 1A | S250 | CF9SMn28 | F.2111 | 1912 | Y15 |
| 11SMn28 | ||||||||||
| 12L13 | SUM22L | 1.0718 | 9SMnPb28 | ‐ | ‐ | S250Pb | CF9SMnPb28 | 11SMnPb28 | 1914 | ‐ |
| ‐ | ‐ | 1.0722 | 10SPb20 | ‐ | ‐ | 10PbF2 | CF10Pb20 | 10SPb20 | ‐ | ‐ |
| 1215 | ‐ | 1.0736 | 9SMn36 | 240M07 | 1B | S300 | CF9SMn36 | 12SMn35 | ‐ | Y13 |
| 12L14 | ‐ | 1.0737 | 9SMnPb36 | ‐ | ‐ | S300PB | CF9SMnPb36 | 12SMnP35 | 1926 | ‐ |
| 1015 | S15C | 1.1141 | Ck15 | 080M15 | 32C | XC12 | C16 | C15K | 1370 | 15 |
| 1025 | S25C | 1.1158 | Ck25 | ‐ | ‐ | ‐ | ‐ | ‐ | ‐ | 25 |
| A572-60 | ‐ | 1.890 | StE380 | 4360 55 | ‐ | ‐ | FeE390KG | ‐ | 2145 | ‐ |
| 1035 | ‐ | 1.0501 | C35 | 060A35 | ‐ | CC35 | C35 | F.113 | 1550 | 35 |
| 1045 | ‐ | 1.0503 | C45 | 080M46 | ‐ | CC45 | C45 | F.114 | 1650 | 45 |
| 1140 | ‐ | 1.0726 | 35S20 | 212M36 | 8M | 35MF4 | ‐ | F210G | 1957 | ‐ |
| 1039 | ‐ | 1.1157 | 40Mn4 | 150M36 | 15 | 35M5 | ‐ | ‐ | ‐ | 40Mn |
| 1335 | SMn438(H) | 1.1167 | 36Mn5 | ‐ | ‐ | 40M5 | ‐ | 36Mn5 | 2120 | 35Mn2 |
| 1330 | SCMn1 | 1.1170 | 28Mn6 | 150M28 | 14A | 20M5 | C28Mn | ‐ | ‐ | 30Mn |
| 1035 | S35C | 1.1183 | Cf35 | 060A35 | ‐ | XC38TS | C36 | ‐ | 1572 | 35Mn |
| 1045 | S45C | 1.1191 | Ck45 | 080M46 | ‐ | XC42 | C45 | C45K | 1672 | Ck45 |
| 1050 | S50C | 1.1213 | Cf53 | 060A52 | ‐ | XC48TS | C53 | ‐ | 1674 | 50 |
| 1055 | ‐ | 1.0535 | C55 | 070M55 | 9 | ‐ | C55 | ‐ | 1655 | 55 |
| 1060 | ‐ | 1.0601 | C60 | 080A62 | 43D | CC55 | C60 | ‐ | ‐ | 60 |
| 1055 | S55C | 1.1203 | Ck55 | 070M55 | ‐ | XC55 | C50 | C55K | ‐ | 55 |
| 1060 | S58C | 1.1221 | Ck60 | 080A62 | 43D | XC60 | C60 | ‐ | 1678 | 60Mn |
| 1095 | ‐ | 1.1274 | Ck101 | 060A96 | ‐ | XC100 | ‐ | F.5117 | 1870 | ‐ |
| W1 | SK3 | 1.1545 | C105W1 | BW1A | ‐ | Y105 | C36KU | F.5118 | 1880 | ‐ |
| W210 | SUP4 | 1.1545 | C105W1 | BW2 | ‐ | Y120 | C120KU | F.515 | 2900 | ‐ |
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Through continuous investment in technology, equipment upgrading and strict quality control, we have steadily expanded our market coverage and built long-term stable cooperation with numerous customers around the wrold.
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We are committed to innovation and excellence, maintaining ISO9001 certification and other international standards, and continuously enhancing our competitive advantage in the global market through strict quality control and technological advancement.
APPLICATION FIELD
Mining Machinery
Automobile Manufacturing
Highway
Petrochemical
Power Equipment
Ship Plate Manufacturing
Container Manufacturing
Construction Engineering
Chemical Industry
Aerospace
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