Page:Title 3 CFR 2002 Compilation.djvu/41

 Proc. 7529 Title 3--The President ANNEX (continued) 8 (T) porcelain enamehng sheet, drawing quahty, \177n coils, 0.36 mm \177n thmkness, -0./)02, -0.000, meeting ASTM A-424-96 type I specifications, and suitable for two coats: Ox) t[n-mdl fiat-rolled products designated as X-509, as described below: (A) single reduced electrolytically chromium coated steel with a thickness 0.238 mm (_+10%) or 0.251 mm (_+10%) or 0255 mm (+_10%) with 770 mm (minirhum width) (-0/+1.588 ram) by 900 mm (maximum length fishcared) sheet size; with type MR or higher (per ASTM) A623 steel chemistry: batch annealed at T 21/2 anneal temper, with a yield strength of 214 to 290 MPa, with a tensile strength of 296 to 400 MPa; w\177th a chrome coating restricted to 32 to 150 mg/m 2 with a chrome oxide coating restricted to 6 to 25 mg/m 2 w\177th a modified 7B ground roll fimsh or blasted roll fimsh: with roughness average (Ra) 0.10 to 0.35 micrometers, measured with a stylus instrument with a stylus radius of 2 to 5 microns, a trace length of 5.6 ram, and a cut~offof 0.8 ram, and the measurement traces shall be made perpendicular to the rolling d\177recnon; with an oil level of 0.17 to 0.37 grams/base box as type BSO, or 2.5 to 5.5 mg/m 2 as type DOS, or 3.5 to 6.5 mg/m 2 as type ATBC; with electrical conductivity of static probe voltage drop of 0.46 volts drop maximum, and with electrical conductivity degradation to 0.70 volts drop maximum after storing (heating to 204 \370C for 100 minutes followed by a cool to room temperature); (B) single reduced electrolytically chromium- or tin-coated steel in the gauges of 0. t02 mm nominal, 0.114 mm nominal, 0.127 mm nominal, 0.155 mm nominal, 0.168 mm nominal, and 0.183 mm nominal, regardless of width, temper, finish, coating or other properties; (C) s\177ngle reduced electrolytically chromium coated steel in the gauge of 0.61 ram, wah widths of 686 mm or 800 mm, and with T~I temper propemes; (D) single reduced electrolytically chromium coated steel, with a chemical composition by weight of not more than 0.005 percent of carbon, 0.030 percent of silicon, 0.25 percent of manganese, 0.025 percent of phosphorus, 0.025 percent of sulfur and 0.070 percent of aluminum, and the remainder iron, with a metallic chromium layer of 70-130 m\177/m 2, with a chromium oxtde layer of 5-30 mg/m 2, w\177th a tensile strength of 260-440 N/mm-; with an elongation of 28-48 percent, with a hardness (HR-30T) of 40-58, with a surface roughness of0.5~1.5 microns Ra, with magnetic properties of Bin (kG) 10.0 minimum, Br (KG) 8.0 m\177mmum, Hc (Oe) 2.5-3.8, and IM400 minimum, as measured with a Riken Denshi DC magnenc characteristic measuring machine, Model BHU-60; (E) electrolytically chromium coated steel having ultra flat shape known as oil can steel, maximum depth of 2.0 mm and edge wave maximum of 2.0 mm and no wave to penetrate more than 51.0 mm from the strip edge and coilset or curling requirements of average maximum of 2.0 mm (based on six readings, three across each cut edge of a 61 cm long sample with no single reading exceeding 3.2 mm and no more than two readings at 3.2 mm) and (for product having a thickness of 0.239 mm only, crossbuckle maximums of 0.0025 mm average having no reading above 0.127 mm), with a camber maximum of 6.3 mm per 6. I m, capable of being bent 120 degrees on a 0.05 mm radius without cracking, with a chromium coating weight of metallic chromium at 100 mg/m 2 and chromium oxide of 10 mg/m-', containing by weight 0.13 percent maximum carbon, 0.60 percent maximum manganese, 0.15 percent maximum silicon, 0.20 percent maximum copper, 0.04 percent maxrerum phosphorus, 0.05 percent maximum sulfur, and 0.20 percent maximum aluminum, w\177th a surface fimsh of Stone Finish 7C, with a DOS-A oil at an aim level of 2 mg/nr', w\177th not more than 15 \177nclusions/foreign matter in 15 feet (4.6 m) (with mclusmns not to exceed 0.8 mm m width and 1.2 mm in length), with thickness/temper combinations ofeaher 0.168 mm double reduced CADR8 temper in widths of 635.0 mm, 685.8 mm, 698.5 mm, 711.2 mm, 717.6 mm, 723.9 ram, 749.3 mm, 755.7 mm, 768.4 ram, 787.4 ram, 831.9 mm, 857.3 mm, 908.1 mm, 920.8 ram, 990.6 mm or 1092.2 ram, or 0.239 mm single reduced CAT4 temper in widths of 635.0 mm, 685.8 mm, 71 t.2 mm, 762.0 mm, 838.2 mm, 857.3 mm, 908. I mm, 920.8 mm or 1092.2 mm, with width tolerance of-/+3.2 mm, with a thickness tolerance of-/+0.013 mm, with a maximum coil weight of 9071.0 kg, with a 28

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