36 TMT Bars Put to the Test
Category: 8.0 mm
Brands: Polaad 550D, Sunvik FE 550
Companies: Bhagyalaxmi Rolling Mill, Sunvik Steels
Observation of chemical tests: In the 8.0 mm category, several samples were tested across different brands. The carbon content ranged between 0.21 and 0.21 against a maximum allowable limit of 0.25. For sulphur, the minimum reading was 0.014, and the maximum reached 0.026 compared to the standard requirement of 0.040. The phosphorous levels observed varied between 0.024 and 0.049.
Observation of physical tests: During the physical tests, the TS/YS ratio spanned from 0.038 to 0.075. The elongation percentage was recorded between NaN and NaN. All samples successfully passed the bend and rebend tests.
Observation of other tests: The test results for mass per meter run, transverse ribs and mean rib area were consistent with the requirements and highlighted the overall compliance of brands within this diameter category.
Category: 10.0 mm
Brands: Polaad 550D, Super Shakti TMT
Companies: Bhagyalaxmi Rolling Mill, Super Smelters
Observation of chemical tests: In the 10.0 mm category, several samples were tested across different brands. The carbon content ranged between 0.18 and 0.20 against a maximum allowable limit of 0.25. For sulphur, the minimum reading was 0.016, and the maximum reached 0.018 compared to the standard requirement of 0.040. The phosphorous levels observed varied between 0.034 and 0.038.
Observation of physical tests: During the physical tests, the TS/YS ratio spanned from 0.052 to 0.054. The elongation percentage was not available for analysis. All samples successfully passed the bend and rebend tests.
Observation of other tests: The transverse ribs and other related measurements complied with the specified requirements, demonstrating good performance across this category.
Category: 12.0 mm
Brands: Polaad 550D, ET TMT, Gallantt 500D CRS TMX, Elegant Steel QST Bars 550D, Sunvik FE 550
Companies: Bhagyalaxmi Rolling Mill, Electrotherm, Gallantt Ispat, Shakambhari Group, Sunvik Steels
Observation of chemical tests: In the 12.0 mm category, numerous samples were analysed. The carbon content was observed between 0.20 and 0.24, adhering to the maximum allowable limit of 0.25. Sulphur levels ranged from 0.018 to 0.024, within the acceptable threshold of 0.040. Phosphorus levels varied between 0.032 and 0.046.
Observation of physical tests: The TS/YS ratio ranged from 0.050 to 0.070, reflecting structural stability. The elongation percentage varied between 0.33 and 0.37, ensuring flexibility. All samples passed the bend and rebend tests without issues.
Observation of other tests: Measurements of mass per meter run, mean rib area and transverse ribs showed consistent results and adhered to the set standards for performance and safety.
Category: 16.0 mm
Brands: Polaad 550D, Gallantt 500D CRS TMX, Moira 550, National CRS TMT 550D, National TMT 550D, FE 500 D, Super Shakti TMT 550D
Companies: Bhagyalaxmi Rolling Mill, Gallantt Ispat, Jaideep Ispat, Shreeyam Power, Shyam Steel Industries, Super Smelters
Observation of chemical tests: Samples tested in the 16.0 mm category showed carbon content ranging between 0.13 and 0.20, within the permissible limit of 0.25. Sulphur readings spanned from 0.015 to 0.034, and phosphorus levels varied between 0.016 and 0.048, with only minor deviations from the standards.
Observation of physical tests: The TS/YS ratio ranged between 0.046 and 0.073, while the elongation percentage varied between 0.27 and 0.35. These results indicate good tensile properties and durability, with all samples passing the required bending tests.
Observation of other tests: The mass per meter readings and rib characteristics met the necessary criteria, showcasing compliance with industry benchmarks.
Category: 20.0 mm
Brands: Polaad 550D, ET TMT, Gallantt 500D CRS TMX, Elegant Steel QST Bars 550D, National CRS TMT 550D, Sunvik FE 550
Companies: Bhagyalaxmi Rolling Mill, Electrotherm, Gallantt Ispat, Shakambhari Group, Shreeyam Power, SRMB Srijan
Observation of chemical tests: Carbon content varied between 0.14 and 0.23, meeting the requirement of less than 0.25. Sulphur ranged from 0.020 to 0.032, and phosphorus from 0.021 to 0.063. Minor exceedances in phosphorus were observed in a few samples.
Observation of physical tests: The TS/YS ratio was between 0.047 and 0.095, while elongation ranged from 0.30 to 0.34. All samples performed well in the physical bend and rebend tests.
Observation of other tests: The test results for mass per meter run and rib structure indicated that the brands maintained the required performance metrics.
Category: 25.0 mm
Brands: Polaad 550D, Gallantt 500D CRS TMX, Elegant Steel QST Bars 550D, National CRS TMT 550D
Companies: Bhagyalaxmi Rolling Mill, Gallantt Ispat, Shakambhari Group, SRMB Srijan, Sunvik Steels
Observation of chemical tests: Carbon content ranged between 0.13 and 0.22, within the acceptable limit. Sulphur readings were between 0.017 and 0.032, while phosphorus ranged from 0.025 to 0.056, with some samples nearing the limit of 0.040.
Observation of physical tests: The TS/YS ratio spanned from 0.049 to 0.088, and elongation was between 0.30 and 0.34. All samples passed the standard physical tests.
Observation of other tests: Compliance with mass per meter run and rib characteristics was observed, ensuring structural stability.
Category: 32.0 mm
Brands: Polaad 550D, ET TMT, Elegant Steel QST Bars 550D, FE 500 D, Sunvik FE 550
Companies: Bhagyalaxmi Rolling Mill, Electrotherm, Shakambhari Group, Shyam Steel Industries
Observation of chemical tests: Carbon readings ranged between 0.16 and 0.20, well within limits. Sulphur ranged from 0.013 to 0.031, and phosphorus from 0.026 to 0.052. No significant outliers were detected.
Observation of physical tests: TS/YS ratios varied from 0.039 to 0.083, while elongation ranged between 0.28 and 0.33. The samples passed all required tests for bending and rebending.
Observation of other tests: Other structural parameters like mass per meter run and rib dimensions met the benchmarks, ensuring quality and adherence to safety standards.
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