A 263 TABLE 3 Permissible Variations in Dimensions of Cold-Rolled Strip Edge
No. 1
No. 5
Description
Specified Width, in. (mm)
Specified Thickness, in. (mm)
Permissible Variations in Width, 6, in. (mm)A
Round or Square Edge, Rolled
9 / 32 (7.14) or under Over 9 / 32 to 3 / 4 (7.14 to 19.05), incl Over 3 / 4 to 5 (19.05 to 127.0), incl
1 / 16 (1.59) or under 3 / 32 (2.39) or under 1 / 8 (3.18) or under
0.005 (0.125) 0.005 (0.125) 0.005 (0.125)
9 / 32 (7.14) or under Over 9 / 32 to 3 / 4 (7.14 to 19.05), incl Over 3 / 4 to 5 (19.05 to 127.0), incl Over 5 to 9 (127.0 to 228.6), incl Over 9 to 20 (228.6 to 508.0), incl Over 20 to 23 15 / 16 (508.0 to 608.0), incl
1 / 16 (1.59) or under 3 / 32 (2.39) or under 1 / 8 (3.18) or under 1 / 8 to 0.008 (3.18 to 0.203), incl 0.105 to 0.015 (2.667 to 0.381) 0.080 to 0.023 (2.03 to 0.584)
0.005 (0.125) 0.005 (0.125) 0.005 (0.125) 0.010 (0.254) 0.010 (0.254) 0.015 (0.381)
1 / 2 (12.7) or under Over 1 / 2 to 15 / 16 (12.7 to 23.81), incl Over 15 / 16 to 2 (23.81 to 50.8), incl Over 2 to 6 (50.8 to 152.4) incl
3 / 16 (4.76) or under 3 / 16 to 0.025 (4.76 to 0.635), incl 1 / 4 to 0.025 (6.35 to 0.635), incl 1 / 4 to 0.225 (6.35 to 5.72), incl
0.010 (0.254) 1 / 64 (0.396) 1 / 32 (0.794) 3 / 64 (1.648)
$
Square rolled or filed, after slitting
No. 6 Square edge, rolled
$
Permissible Variations in Width of No. 3 Edge Strip, in. (mm) Specified Thickness, in. (mm)
Up to 2 in. (50.8)
Over 2 to 6 in. (50.8 to 152.4)
Over 6 to 12 in. (152.4 to 304.8)
Over 12 to 23 15 / 16 incl (304.8 to 608.0)
0.050 (1.27) or under 0.051 to 0.083 (1.28 to 2.11) 0.084 (2.12) or Over
0.007 (0.178) 0.010 (0.254) 0.012 (0.305)
0.010 (0.254) 0.012 (0.305) 0.015 (0.381)
0.015 (0.381) 0.015 (0.381) 0.018 (0.457)
0.015 (0.381) 0.020 (0.508) 0.20 (0.508)
Specified Length, ft (cm)
Permissible Variation in Length +, in. (mm)
Up to 5, incl Over 5 (152.40) to 10 (304.8), incl Over 10 (304.8) to 20 (609.6), incl Over 20 (609.6) to 30 (914.4), incl Over 30 (914.4) to 40 (1219.2), incl Over 40 (1219.2) to 60 (1828.8), incl Over 60 (1828.8) to 90 (2743.2), incl Over 90 (2743.2) to 200 (6096.0), incl
3 / 8 (9.53) 1 / 2 (12.7) 5 / 8 (15.88) 3 / 4 (19.05) 1 (25.4) 1 1 / 2 (38.1) 2 (50.8) 2 1 / 2 (63.5)
Specified Width, in. (mm)
Permissible Camber B
1 1 / 2 and under (38.1 and under) Over 1 1 / 2 to 23 15 / 16 (Over 38.1 to 608.0), incl A B
1 / 2 in. in any 8 ft length (12.7 mm in any 243.84 cm) 1 / 4 in. in any 8 ft length (6.35 mm in any 243.84 cm)
These permissible variations are plus or minus. If variation is desired all one way, double the figure indicated. Camber shall be determined by placing an 8 ft (243.84 cm) straightedge against the concave side of the strip.
Specification A 20/A 20M.
14.2 Sheet and Strip : 14.2.1 In the case of single-clad sheet or strip produced in coil form, two bend tests shall be made from each end of the coil. On double-clad sheet or strip produced in coil form, one bend test shall be made from each end of the coil. 14.2.2 In the case of single-clad sheet or strip produced in discrete cut lengths, four bend tests shall be made on each 100 or less pieces of the same heat and nominal thickness, provided the 100 pieces weigh not less than 1000 lb. In the event that 100 pieces weigh less than 1000 lb, four bend tests shall be made from each 1000 lb or less of the same heat and nominal thickness. On double-clad sheet or strip, two bend tests shall be made on each lot as defined in the two preceding sentences. 14.2.3 On double-clad materials, the bend tests shall be made so that one specimen will represent the alloy-cladding metal in tension on one side while the other specimen will represent the alloy-cladding metal in tension on the opposite side.
14. Number of Tests and Retests 14.1 Plate: 14.1.1 One or more tension tests, as required by the specifications for the base metal, one face bend test (alloy cladding in tension), one reverse bend test (alloy cladding in compression), and, when specified, one shear test or three bond bend tests shall be made representing each plate as rolled. Each specimen shall be in the final condition of heat treatment required for the plate. 14.1.2 If any test specimen shows defective machining or develops flaws, it may be discarded and another specimen substituted. 14.1.3 If the percentage of elongation of any tension test specimen is less than that specified in 7.1.1 and any part of the fracture is more than 3 ⁄ 4in. (19.1 mm) from the center of the gage length of a 2-in. (50.8-mm) specimen or is outside the middle third of the gage length of an 8-in. (203.2-mm) specimen, as indicated by scribe scratches marked on the specimen before testing, a retest shall be allowed.
15. Test Specimens 15.1 Plate: 5
