9 Weight Per Foot of Weld Metal for Fillet Welds and Elements of Common Butt Joints (lb/ft) Steel Instructions 1.  Make a drawing of the cross-section of the joint to exact scale. 2.  Divide the cross-section into right triangles, rectangles and sketch in the desired reinforcement. 3.  Measure  the thickness, angles angle leg lengths, root opening and the length and height of the reinforcement. 4.  Total the weight per foot of each of the elements from the chart for the weight per foot of the weld.
lbs./ft. of Rectangle A
lbs./ft. of Triangle B
lbs./ft. Reinforcement C
T
G
S
H
Inches 1/16" 1/8" 3/16" 1/4" 3/8" 1/2" 10° 15° 22 1/2° 30° 45° 1/16" 1/8" 3/16" 1/4" 1/8 .027 .053 .080 .106 .159 .212 .002 .005 .007 .011 .015 .027 3/16 .040 .080 .119 .159 .239 .318 .005 .011 .016 .025 .035 .060 .027 1/4 .053 .106 .159 .212 .318 .425 .009 .019 .028 .044 .061 .106 .035 5/16 .066 .133 .199 .265 .390 .531 .015 .029 .044 .069 .096 .166 .044 .884 3/8 .080 .159 .239 .318 .478 .637 .021 .042 .064 .099 .138 .239 .053 .106 7/16 .091 .186 .279 .371 .557 .743 .028 .057 .087 .129 .188 .325 .062 .124 1/2 .106 .212 .318 .425 .637 .849 .037 .075 .114 .176 .245 .425 .071 .141 .212 lbs./ft. of Rectangle A lbs./ft. of Triangle B lbs./ft. Reinforcement C T G S H Inches 1/16" 1/8" 3/16" 1/4" 3/8" 1/2" 10° 15° 22 1/2° 30° 45° 1/16" 1/8" 3/16" 1/4" 9/16 .119 .239 .358 .478 .716 .955 .047 .095 .144 .223 .311 .451 .080 .159 .239 5/8 .133 .265 .398 .531 .796 1.061 .058 .117 .178 .275 .383 .664 .088 .177 .265 .354 11/16 .146 .292 .438 .584 .876 1.167 .070 .142 .215 .332 .464 .804 .097 .195 .292 .389 3/4 .159 .318 .478 .637 .995 1.274 .084 .169 .256 .396 .552 .956 .106 .212 .318 .424 13/16 .172 .345 .517 .690 1.035 1.380 .098 .198 .301 .464 .648 1.121 .115 .230 .345 .460 7/8 .186 .371 .557 .743 1.114 1.486 .114 .230 .349 .538 .751 1.300 .124 .248 .371 .495 15/16 .199 .398 .597 .796 1.194 1.592 .131 .263 .400 .618 .863 1.493 .133 .266 .398 .530 1 .212 .425 .637 .849 1.274 1.698 .149 .300 .456 .703 .981 1.698 .141 .283 .424 .566 1 1/8 .239 .478 .716 .955 1.433 1.910 .188 .379 .577 .890 1.241 2.149 .159 .318 .477 .637 1 1/4 .265 .531 .796 1.061 1.592 2.123 .232 .468 .712 1.099 1.532 2.653 .177 .354 .531 .707 1 3/8 .292 .584 .876 1.167 1.751 2.335 .281 .567 .861 1.330 1.853 3.210 .195 .389 .584 .777 1 1/2 .318 .637 .955 1.274 1.910 2.547 .334 .674 1.023 1.582 2.206 3.821 .212 .424 .637 .849 1 5/8 .345 .690 1.035 1.380 2.069 2.759 .393 .792 1.201 1.857 2.589 4.484 .230 .460 .690 .920 1 3/4 .371 .743 1.114 1.486 2.229 2.972 .455 .918 1.393 2.154 3.002 5.200 .248 .495 .743 .990 1 7/8 .390 .796 1.194 1.592 2.388 3.184 .523 1.053 1.599 2.473 3.447 5.970 .266 .531 .796 1.061 2 .425 .649 1.274 1.698 2.547 3.396 .594 1.197 1.820 2.813 3.921 6.792 .283 .566 .849 1.132 2 1/4 .478 .955 1.433 1.910 2.865 3.821 .752 1.516 2.303 3.561 4.963 8.596 .318 .637 .955 1.273 2 1/2 .530 1.061 1.592 2.123 3.184 4.245 .928 1.871 2.844 4.396 6.127 10.613 .354 .707 1.061 1.415 2 3/4 .584 1.167 1.751 2.335 3.502 4.669 1.123 2.264 3.441 5.319 7.414 12.841 .389 .778 1.167 1.556 3 .636 1.274 1.910 2.547 3.821 5.094 1.337 2.695 4.095 6.330 8.823 15.282 .424 .849 1.273 1.698
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