{"schemaVersion":1,"dataVersion":"2026-11-06m","checkedAt":"2026-11-06","units":{"diameter":"mm","massPerLength":"kg/m"},"defaultSource":"is1786","sources":[{"id":"is1786","title":"IS 1786:2008 + Amendment 1 · nominal mass","url":"https://archive.org/download/gov.in.is.1786.2008/is.1786.2008.pdf","scope":"Table 1 and Amendment 1 (2012), PDF pages 14 and 8. Fifteen nominal bar/wire sizes from 4 to 50 mm. Later BIS product-manual status checked; this is not a draft table."},{"id":"sail-tmt","title":"SAIL TMT · April 2022 brochure","url":"https://www.sail.co.in/sites/default/files/product-brochure/2022-04/TMT-Bars-Brochure-2022-new.pdf","scope":"Rationalised-size table, PDF page 2. Includes 22 mm by producer reference; 40 mm is printed as 9.85 kg/m. Catalogue listing is not a stock guarantee."}],"rows":[{"id":"is1786-4","source":"is1786","diameter":4,"kgPerM":0.099},{"id":"is1786-5","source":"is1786","diameter":5,"kgPerM":0.154},{"id":"is1786-6","source":"is1786","diameter":6,"kgPerM":0.222},{"id":"is1786-8","source":"is1786","diameter":8,"kgPerM":0.395},{"id":"is1786-10","source":"is1786","diameter":10,"kgPerM":0.617},{"id":"is1786-12","source":"is1786","diameter":12,"kgPerM":0.888},{"id":"is1786-16","source":"is1786","diameter":16,"kgPerM":1.58},{"id":"is1786-20","source":"is1786","diameter":20,"kgPerM":2.47},{"id":"is1786-25","source":"is1786","diameter":25,"kgPerM":3.85},{"id":"is1786-28","source":"is1786","diameter":28,"kgPerM":4.83},{"id":"is1786-32","source":"is1786","diameter":32,"kgPerM":6.31},{"id":"is1786-36","source":"is1786","diameter":36,"kgPerM":7.99},{"id":"is1786-40","source":"is1786","diameter":40,"kgPerM":9.86},{"id":"is1786-45","source":"is1786","diameter":45,"kgPerM":12.49},{"id":"is1786-50","source":"is1786","diameter":50,"kgPerM":15.42},{"id":"sail-tmt-6","source":"sail-tmt","diameter":6,"kgPerM":0.222},{"id":"sail-tmt-8","source":"sail-tmt","diameter":8,"kgPerM":0.395},{"id":"sail-tmt-10","source":"sail-tmt","diameter":10,"kgPerM":0.617},{"id":"sail-tmt-12","source":"sail-tmt","diameter":12,"kgPerM":0.888},{"id":"sail-tmt-16","source":"sail-tmt","diameter":16,"kgPerM":1.58},{"id":"sail-tmt-20","source":"sail-tmt","diameter":20,"kgPerM":2.47},{"id":"sail-tmt-22","source":"sail-tmt","diameter":22,"kgPerM":2.98},{"id":"sail-tmt-25","source":"sail-tmt","diameter":25,"kgPerM":3.85},{"id":"sail-tmt-28","source":"sail-tmt","diameter":28,"kgPerM":4.83},{"id":"sail-tmt-32","source":"sail-tmt","diameter":32,"kgPerM":6.31},{"id":"sail-tmt-36","source":"sail-tmt","diameter":36,"kgPerM":7.99},{"id":"sail-tmt-40","source":"sail-tmt","diameter":40,"kgPerM":9.85}],"note":"Nominal published mass, not weighed delivery mass. D²/162 is a separate approximation. Confirm grade, length, supplier packing and the agreed billing basis."}