Calibrated Round Bar

    In various industries such as automotive, mechanical engineering, shipbuilding, machine building, construction, transportation, and the oil industry, calibrated round bars are extensively utilized. The production process involves cold drawing, resulting in calibrated hot-rolled round bars that exhibit enhanced physical, mechanical, and plastic properties, thereby improving the overall quality and surface finish of the metal product. These calibrated round bars are available in different steel grades and adhere to the requirements outlined in GOST 7417-75 and DIN standards, with diameters ranging from 3 to 100 mm. For diameters up to 5 mm, calibrated round bars are supplied in coils, while diameters exceeding 5 mm are manufactured according to customer specifications.

    The length of calibrated bars varies between two and six and a half meters, depending on the specific requirements of low-alloy, carbon, automatic, or alloyed steel. High-alloyed steel bars are available in lengths ranging from 1.5 to 6.5 meters, with the length determined by the relevant standards applicable to their intended purpose.

    The production of calibrated steel employs the following steel grades:

    High-machinability or automatic structural steel: AS40 (equivalent to ASTM A108 Grade 1018 or European standard EN 10277-2 Grade S235JRC), AS40H (equivalent to ASTM A108 Grade 1117 or European standard EN 10277-3 Grade C15R), AS14 (equivalent to ASTM A108 Grade 1010 or European standard EN 10277-2 Grade S235JRG2C), A12 (equivalent to ASTM A108 Grade 1045 or European standard EN 10277-2 Grade C45E), A30 (equivalent to ASTM A108 Grade 1030 or European standard EN 10277-2 Grade C30E), AS35G2 (equivalent to ASTM A108 Grade 1215 or European standard EN 10277-3 Grade 11SMnPb30), Quality carbon steel grades: St10 (equivalent to ASTM A108 Grade 1010 or European standard EN 10277-2 Grade S235JRG2C), St15 (equivalent to ASTM A108 Grade 1015 or European standard EN 10277-2 Grade S235J0C), St20 (equivalent to ASTM A108 Grade 1020 or European standard EN 10277-2 Grade S235JRC), St25 (equivalent to ASTM A108 Grade 1025 or European standard EN 10277-2 Grade S235J0C), St30 (equivalent to ASTM A108 Grade 1030 or European standard EN 10277-2 Grade S235JRG2C), St40 (equivalent to ASTM A108 Grade 1040 or European standard EN 10277-2 Grade C45E), St45 (equivalent to ASTM A108 Grade 1045 or European standard EN 10277-2 Grade C45E), St50 (equivalent to ASTM A108 Grade 1050 or European standard EN 10277-2 Grade C50E). Low-alloy structural steel: 19G (equivalent to ASTM A108 Grade 4140 or European standard EN 10277-5 Grade 42CrMo4), 14G (equivalent to ASTM A108 Grade 4140 or European standard EN 10277-5 Grade 42CrMo4), 09G2S (equivalent to ASTM A108 Grade 1018 or European standard EN 10277-2 Grade S235JRC), 09G2 (equivalent to ASTM A108 Grade 1020 or European standard EN 10277-2 Grade S235JRC), 12GS (equivalent to ASTM A108 Grade 1025 or European standard EN 10277-2 Grade S235J0C), 17GS (equivalent to ASTM A108 Grade 1030 or European standard EN 10277-2 Grade S235JRG2C), 16GS (equivalent to ASTM A108 Grade 1040 or European standard EN 10277-2 Grade C45E), 18G2 (equivalent to ASTM A108 Grade 1045 or European standard EN 10277-2 Grade C45E). Heat-resistant corrosion-resistant steel: 23H23N18 (equivalent to ASTM A276 Type 304 or European standard EN 10088-3 Grade X5CrNi18-10), 08H18N10T (equivalent to ASTM A276 Type 321 or European standard EN 10088-3 Grade X6CrNiTi18-10), 10H17N13MDT (equivalent to ASTM A276 Type 316Ti or European standard EN 10088-3 Grade X6CrNiMoTi17-12-2), 95H18 (equivalent to ASTM A276 Type 440C or European standard EN 10088-3 Grade X105CrMo17), 20H13 (equivalent to ASTM A276 Type 420 or European standard EN 10088-3 Grade X20Cr13), 15H25 (equivalent to ASTM A276 Type 310 or European standard EN 10088-3 Grade X15CrNiSi25-20), 40H13 (equivalent to ASTM A276 Type 420 or European standard EN 10088-3 Grade X20Cr13). Round-section steel made of non-alloy tool steel with diameters ranging from 0.3 to 50 mm, manufactured according to the requirements of GOST 149 55 77 and EN 10277. Available Calibrated Round Bar Steel:

Calibrated Round Bar Steel 10 (equivalent to ASTM A108 Grade 1010 or European standard EN 10277-2 Grade S235JRG2C)

Calibrated Round Bar Steel 15 (equivalent to ASTM A108 Grade 1015 or European standard EN 10277-2 Grade S235J0C)

Calibrated Round Bar Steel 20 (equivalent to ASTM A108 Grade 1020 or European standard EN 10277-2 Grade S235JRC)

Calibrated Round Bar Steel 40 (equivalent to ASTM A108 Grade 1040 or European standard EN 10277-2 Grade C45E)

Calibrated Round Bar Steel 40H (equivalent to ASTM A108 Grade 1040 or European standard EN 10277-2 Grade C45E)

Calibrated Round Bar Steel 45 (equivalent to ASTM A108 Grade 1045 or European standard EN 10277-2 Grade C45E)

Calibrated Round Bar Steel 50 (equivalent to ASTM A108 Grade 1050 or European standard EN 10277-2 Grade C50E)