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MC channels (AISC miscellaneous channels): MC6x12, MC8x8.5, MC12x31 dimensions + STEP/STL

What are the dimensions of an MC8x8.5 channel? · Standard part · basis: AISC Shapes Database (v15.0 values): d, bf, tw, tf, k for every MC shape

Also called: mc8x8.5 dimensions, mc8x8.5, mc 8 x 8.5, mc6x12, mc12x31, mc10x22, mc4x13.8, mc3x7.1, mc channel dimensions, miscellaneous channel dimensions

Exact dimensions. True size, with no printing tolerance added.

length
101.6 mm

Notes

  • MC shapes are 'miscellaneous' channels: deeper than a C of the same weight in some sizes and with different flange proportions. MC12x31 is about 12 in deep, 31 lb per foot.
  • A flange slope for MC shapes is not stated in any page we could read, so the MC files are drawn with parallel flanges of the tabulated thickness, root radius r = k - tf from the printed k, and square tips. Where an MC flange is really tapered the drawn section differs slightly; the drawn area is within 5 % of the printed area on all of them.
  • Files are 4 in (101.6 mm) long extrusions along X; the section is in the YZ plane, back of the web on y = 0, flanges toward +y, with z = 0 on the bottom face.
  • 12 of the 40 MC sizes have files; all sizes are in the table.

MC channels (AISC miscellaneous channels): MC6x12, MC8x8.5, MC12x31… size chart

shapelb/ftd (in)bf (in)tw (in)tf (in)k (in)d (mm)bf (mm)tw (mm)tf (mm)
MC18x5858.018.04.20.70.6251.44457.2106.717.7815.88
MC18x51.951.918.04.10.60.6251.44457.2104.115.2415.88
MC18x45.845.818.04.00.50.6251.44457.2101.612.715.88
MC18x42.742.718.03.950.450.6251.44457.2100.311.4315.88
MC13x5050.013.04.410.7870.611.44330.2112.019.9915.49
MC13x4040.013.04.190.560.611.44330.2106.414.2215.49
MC13x3535.013.04.070.4470.611.44330.2103.411.3515.49
MC13x31.831.813.04.00.3750.611.44330.2101.69.5215.49
MC12x5050.012.04.140.8350.71.31304.8105.221.2117.78
MC12x4545.012.04.010.710.71.31304.8101.918.0317.78
MC12x4040.012.03.890.590.71.31304.898.814.9917.78
MC12x3535.012.03.770.4650.71.31304.895.811.8117.78
MC12x3131.012.03.670.370.71.31304.893.29.417.78
MC12x14.314.312.02.120.250.3130.75304.853.86.357.95
MC12x10.610.612.01.50.190.3090.75304.838.14.837.85
MC10x41.141.110.04.320.7960.5751.31254.0109.720.2214.6
MC10x33.633.610.04.10.5750.5751.31254.0104.114.614.6
MC10x28.528.510.03.950.4250.5751.31254.0100.310.7914.6
MC10x2525.010.03.410.380.5751.31254.086.69.6514.6
MC10x2222.010.03.320.290.5751.31254.084.37.3714.6
MC10x8.48.410.01.50.170.280.75254.038.14.327.11
MC10x6.56.510.01.170.1520.2020.563254.029.73.865.13
MC9x25.425.49.03.50.450.551.25228.688.911.4313.97
MC9x23.923.99.03.450.40.551.25228.687.610.1613.97
MC8x22.822.88.03.50.4270.5251.19203.288.910.8513.33
MC8x21.421.48.03.450.3750.5251.19203.287.69.5213.33
MC8x2020.08.03.030.40.51.13203.277.010.1612.7
MC8x18.718.78.02.980.3530.51.13203.275.78.9712.7
MC8x8.58.58.01.870.1790.3110.813203.247.54.557.9
MC7x22.722.77.03.60.5030.51.13177.891.412.7812.7
MC7x19.119.17.03.450.3520.51.13177.887.68.9412.7
MC6x1818.06.03.50.3790.4751.06152.488.99.6312.06
MC6x15.315.36.03.50.340.3850.875152.488.98.649.78
MC6x16.316.36.03.00.3750.4751.06152.476.29.5212.06
MC6x15.115.16.02.940.3160.4751.06152.474.78.0312.06
MC6x1212.06.02.50.310.3750.875152.463.57.879.52
MC6x77.06.01.880.1790.2910.75152.447.84.557.39
MC6x6.56.56.01.850.1550.2910.75152.447.03.947.39
MC4x13.813.84.02.50.50.51.0101.663.512.712.7
MC3x7.17.13.01.940.3120.3510.81376.249.37.928.92

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

AISC (values via the ambaker1/aisc-csv extract, MIT)AISC Shapes Database v15.0 (W, S, C, MC, L, HSS): d, bf, tw, tf, k, t, HSS Ht, B, OD, tnom, tdes, A, weightwebAISC publishes the database free of charge; dimensions are facts. aisc.org itself was not reachable from the build box
AISCShapes Database (free download, v16.0 on aisc.org) - the values here are the v15.0 release; check the current release before relying on a sizewebPublisher's page; dimensions are facts

Free files

★ Free files 12 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

mc3x7-1-4inMC3 x 7.1 channel: depth 3.0 in (76.2 mm), flange 1.94 in (49.3 mm), web 0.312 in, flange 0.351 in, 4 in longSTEP · STL
mc4x13-8-4inMC4 x 13.8 channel: depth 4.0 in (101.6 mm), flange 2.5 in (63.5 mm), web 0.5 in, flange 0.5 in, 4 in longSTEP · STL
mc6x12-4inMC6 x 12 channel: depth 6.0 in (152.4 mm), flange 2.5 in (63.5 mm), web 0.31 in, flange 0.375 in, 4 in longSTEP · STL
mc6x18-4inMC6 x 18 channel: depth 6.0 in (152.4 mm), flange 3.5 in (88.9 mm), web 0.379 in, flange 0.475 in, 4 in longSTEP · STL
mc8x8-5-4inMC8 x 8.5 channel: depth 8.0 in (203.2 mm), flange 1.87 in (47.5 mm), web 0.179 in, flange 0.311 in, 4 in longSTEP · STL
mc8x22-8-4inMC8 x 22.8 channel: depth 8.0 in (203.2 mm), flange 3.5 in (88.9 mm), web 0.427 in, flange 0.525 in, 4 in longSTEP · STL
mc10x22-4inMC10 x 22 channel: depth 10.0 in (254.0 mm), flange 3.32 in (84.3 mm), web 0.29 in, flange 0.575 in, 4 in longSTEP · STL
mc10x8-4-4inMC10 x 8.4 channel: depth 10.0 in (254.0 mm), flange 1.5 in (38.1 mm), web 0.17 in, flange 0.28 in, 4 in longSTEP · STL
mc12x10-6-4inMC12 x 10.6 channel: depth 12.0 in (304.8 mm), flange 1.5 in (38.1 mm), web 0.19 in, flange 0.309 in, 4 in longSTEP · STL
mc12x31-4inMC12 x 31 channel: depth 12.0 in (304.8 mm), flange 3.67 in (93.2 mm), web 0.37 in, flange 0.7 in, 4 in longSTEP · STL
mc13x35-4inMC13 x 35 channel: depth 13.0 in (330.2 mm), flange 4.07 in (103.4 mm), web 0.447 in, flange 0.61 in, 4 in longSTEP · STL
mc18x42-7-4inMC18 x 42.7 channel: depth 18.0 in (457.2 mm), flange 3.95 in (100.3 mm), web 0.45 in, flange 0.625 in, 4 in longSTEP · STL
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Plain text: sheet.txt · JSON: /api/geometry?object=aisc-mc-channels

MC channels (AISC miscellaneous channels): MC6x12, MC8x8.5, MC12x31 dimensions + STEP/STL, isometric render of a generated part
Render of mc10x22-4in from the free STEP; not to scale.

Fits with

C channels (AISC American Standard channels): C6x13, C8x11.5, C12x20.7 dimensions + STEP/STL, isometric render of a generated part
C channels (AISC American Standard channels): C6x13, C8x11.5, C12x20.7 dimensions + STEP/STL101.6 mm★ 19 files
W shapes (AISC wide-flange beams): W8x10, W12x26, W14x90 dimensions + STEP/STL, isometric render of a generated part
W shapes (AISC wide-flange beams): W8x10, W12x26, W14x90 dimensions + STEP/STL101.6 mm★ 48 files
Steel angles L (AISC): L4x4x1/4, L3x3x1/4, L2x2x1/4, L5x3x1/4 dimensions + STEP/STL, isometric render of a generated part
Steel angles L (AISC): L4x4x1/4, L3x3x1/4, L2x2x1/4, L5x3x1/4 dimensions + STEP/STL101.6 mm★ 31 files

Questions

What is an MC channel?

A miscellaneous channel in the AISC manual: channel shapes that are not on the American Standard C list.