Carburizing Steels for use in Bearing Industry IS 5489 : 1975 2020-02-14 QCO for Carburizing Steels for use in Bearing Industry Soft Magnetic Iron Strips IS 11946 : 1987 Date not specified QCO for Soft Magnetic Iron Strips Chrome molybdenum steel bars and rods for aircraft purposes IS 963 : 1958 2020-02-14 QCO for Chrome molybdenum steel bars and rods for aircraft purposes Cold-reduced Electrolytic Tin Plate IS 1993 : 2018 2020-02-14 QCO for Cold-reduced Electrolytic Tin Plate Cold-reduced Electrolytic Chromium/Chromium oxide – coated steel IS 12591 : 2018 2020-02-14 QCO for Cold-reduced Electrolytic Chromium/Chromium oxide – coated steel Expanded Metal Steel Sheets for General Purposes IS 412 : 1975 2020-02-14 QCO for Expanded Metal Steel Sheets for General Purposes Steel Billets, Bars and Sections for Boilers IS 2100 : 1970 2020-02-14 QCO for Steel Billets, Bars and Sections for Boilers Hard Drawn Steel Wire for Upholstery Springs IS 2589 : 1975 2020-02-14 QCO for Hard Drawn Steel Wire for Upholstery Springs Mild Steel Rivet Bars for Ship Building IS 3298 : 1981 2020-02-14 QCO for Mild Steel Rivet Bars for Ship Building Steel for Spring Washers IS 4072 : 1975 2020-02-14 QCO for Steel for Spring Washers Steel Wire for Banding of Armatures and Rotors – Part II IS 2067 (Part II) 2020-02-14 QCO for Steel Wire for Banding of Armatures and Rotors – Part II Tinned Steel Wire for Banding of Armatures and Rotors – Part III IS 2067 (Part III) 2020-02-14 QCO for Tinned Steel Wire for Banding of Armatures and Rotors – Part III Half Round Mild Steel Wire for the Manufacture of Split Pins IS 8563 : 1977 2020-02-14 QCO for Half Round Mild Steel Wire for the Manufacture of Split Pins Steel Wire for Nipples for Spokes IS 8564 : 1977 2020-02-14 QCO for Steel Wire for Nipples for Spokes Heald Wire IS 8565 : 1977 2020-02-14 QCO for Heald Wire Steel Wire for Reeds IS 8566 : 1977 2020-02-14 QCO for Steel Wire for Reeds Plates For Galvanizing Pots IS 8917 : 1978 2020-02-14 QCO for Plates For Galvanizing Pots Hot Rolled Steel Plates Sheets And Strips For Manufacture of Agricultural Discs IS 9442 : 1980 2020-02-14 QCO for Hot Rolled Steel Plates Sheets And Strips For Manufacture of Agricultural Discs Cold-Reduced And Hot-Rolled Carbon Steel Sheet For Porcelain Enamelling IS 9485 : 1980 2020-02-14 QCO for Cold-Reduced And Hot-Rolled Carbon Steel Sheet For Porcelain Enamelling Mild steel wire for cotter pins IS 10794 : 1984 2020-02-14 QCO for Mild steel wire for cotter pins Trapezoidal Steel Wire For Springs Washers IS 12262 : 1988 2020-02-14 QCO for Trapezoidal Steel Wire For Springs Washers Hot-Dip Terne Coated Carbon Steel Sheets IS 12313 : 1988 2020-02-14 QCO for Hot-Dip Terne Coated Carbon Steel Sheets Structural Steel (Ordinary Quality) IS 15911 : 2010 2020-02-14 QCO for Structural Steel (Ordinary Quality) Mould Steels IS 4430 : 1979 2020-02-14 QCO for Mould Steels Carbon And Carbon-Manganese Free-Cutting Steels IS 4431 : 1978 2020-02-14 QCO for Carbon And Carbon-Manganese Free-Cutting Steels Case Hardening Steels IS 4432 : 1988 2021-11-13 QCO for Case Hardening Steels Steels For Die Blocks For Drop Forging IS 5518 : 1996 2020-02-14 QCO for Steels For Die Blocks For Drop Forging Forged/Rolled CTC Segments IS 8748 : 1978 2020-02-14 QCO for Forged/Rolled CTC Segments Quenched And Tempered Alloy Steel Forgings For Pressure Vessels IS 12145 : 1987 2020-02-14 QCO for Quenched And Tempered Alloy Steel Forgings For Pressure Vessels Carbon And Low Alloy Billets, Blooms, Slabs And Bars For Manufacture Of Shell Bodies And Proof Shots Used in Defence Services IS 14698 : 1999 2020-02-14 QCO for Carbon And Low Alloy Billets, Blooms, Slabs And Bars Cold-Reduced tinmill products – Blackplate IS/ISO 11951 : 2016 2020-02-14 QCO for Cold-Reduced tinmill products – Blackplate Flame And Induction Hardening Steels IS 3930 : 1994 2020-02-14 QCO for Flame And Induction Hardening Steels Thermostat Metal Sheet and Strip IS 5478 : 1969 2020-02-14 QCO for Thermostat Metal Sheet and Strip Stock for Forgings produced from Continuously Cast Blooms, Billets and Slabs IS 13352 : 1992 2020-02-14 QCO for Stock for Forgings produced from Continuously Cast Blooms, Billets and Slabs Stress-Relieved, Low Relaxation Steel Wire for Pre-stressed Concrete IS 16644 : 2018 2020-02-14 QCO for Stress-Relieved, Low Relaxation Steel Wire for Pre-stressed Concrete Electrogalvanized Hot Rolled and Cold Reduced Carbon Steel Sheets and Strips IS 17404 : 2020 2020-02-14 QCO for Electrogalvanized Hot Rolled and Cold Reduced Carbon Steel Sheets and Strips