Table 11. Lengths of Straight Stock Required for 90-Degree Bends in Half-Hard Brass and Sheet Copper, Soft Steel, and Aluminum Radius R of Bend, Inches Thickness T of Material, Inch 1 ∕ 64 1 ∕ 32 3 ∕ 64 1 ∕ 16 5 ∕ 64 3 ∕ 32 1 ∕ 8 5 ∕ 32 3 ∕ 16 7 ∕ 32 1 ∕ 4 9 ∕ 32 5 ∕ 16 1 ∕ 32 0.059 0.069 0.079 0.089 0.099 0.109 0.129 0.149 0.169 0.189 0.209 0.229 0.249 3 ∕ 64 0.084 0.094 0.104 0.114 0.124 0.134 0.154 0.174 0.194 0.214 0.234 0.254 0.274 1 ∕ 16 0.108 0.118 0.128 0.138 0.148 0.158 0.178 0.198 0.218 0.238 0.258 0.278 0.298 3 ∕ 32 0.157 0.167 0.177 0.187 0.197 0.207 0.227 0.247 0.267 0.287 0.307 0.327 0.347 1 ∕ 8 0.206 0.216 0.226 0.236 0.246 0.256 0.276 0.296 0.316 0.336 0.356 0.376 0.396 5 ∕ 32 0.255 0.265 0.275 0.285 0.295 0.305 0.325 0.345 0.365 0.385 0.405 0.425 0.445 3 ∕ 16 0.305 0.315 0.325 0.335 0.345 0.355 0.375 0.395 0.415 0.435 0.455 0.475 0.495 7 ∕ 32 0.354 0.364 0.374 0.384 0.394 0.404 0.424 0.444 0.464 0.484 0.504 0.524 0.544 1 ∕ 4 0.403 0.413 0.423 0.433 0.443 0.453 0.473 0.493 0.513 0.533 0.553 0.573 0.593 9 ∕ 32 0.452 0.462 0.472 0.482 0.492 0.502 0.522 0.542 0.562 0.582 0.602 0.622 0.642 5 ∕ 16 0.501 0.511 0.521 0.531 0.541 0.551 0.571 0.591 0.611 0.631 0.651 0.671 0.691 11 ∕ 32 0.550 0.560 0.570 0.580 0.590 0.600 0.620 0.640 0.660 0.680 0.700 0.720 0.740 3 ∕ 8 0.599 0.609 0.619 0.629 0.639 0.649 0.669 0.689 0.709 0.729 0.749 0.769 0.789 13 ∕ 32 0.648 0.658 0.668 0.678 0.688 0.698 0.718 0.738 0.758 0.778 0.798 0.818 0.838 7 ∕ 16 0.697 0.707 0.717 0.727 0.737 0.747 0.767 0.787 0.807 0.827 0.847 0.867 0.887 15 ∕ 32 0.746 0.756 0.766 0.776 0.786 0.796 0.816 0.836 0.856 0.876 0.896 0.916 0.936 1 ∕ 2 0.795 0.805 0.815 0.825 0.835 0.845 0.865 0.885 0.905 0.925 0.945 0.965 0.985 17 ∕ 32 0.844 0.854 0.864 0.874 0.884 0.894 0.914 0.934 0.954 0.974 0.994 1.014 1.034 9 ∕ 16 0.894 0.904 0.914 0.924 0.934 0.944 0.964 0.984 1.004 1.024 1.044 1.064 1.084 5 ∕ 8 0.992 1.002 1.012 1.022 1.032 1.042 1.062 1.082 1.102 1.122 1.42 1.162 1.182 11 ∕ 16 1.090 1.100 1.110 1.120 1.130 1.140 1.160 1.180 1.200 1.220 1.240 1.260 1.280 3 ∕ 4 1.188 1.198 1.208 1.218 1.228 1.238 1.258 1.278 1.298 1.318 1.338 1.358 1.378 13 ∕ 16 1.286 1.296 1.306 1.316 1.326 1.336 1.356 1.376 1.396 1.416 1.436 1.456 1.476 7 ∕ 8 1.384 1.394 1.404 1.414 1.424 1.434 1.454 1.474 1.494 1.514 1.534 1.554 1.574 15 ∕ 16 1.483 1.493 1.503 1.513 1.523 1.553 1.553 1.573 1.693 1.613 1.633 1.653 1.673 1 1.581 1.591 1.601 1.611 1.621 1.631 1.651 1.671 1.691 1.711 1.731 1.751 1.771 1 1 ∕ 16 1.697 1.689 1.699 1.709 1.719 1.729 1.749 1.769 1.789 1.809 1.829 1.849 1.869 1 1 ∕ 8 1.777 1.787 1.797 1.807 1.817 1.827 1.847 1.867 1.887 1.907 1.927 1.947 1.967 1 3 ∕ 16 1.875 1.885 1.895 1.905 1.915 1.925 1.945 1.965 1.985 1.005 2.025 2.045 2.065 1 1 ∕ 4 1.973 1.983 1.993 1.003 2.013 2.023 2.043 2.063 2.083 2.103 2.123 2.143 2.163
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