H-122-A

H-122 Back to Back Welded Channel - 2 Pieces

H-122-A strut channels are manufactured by a series of forming dies, or rolls, which progressively cold work the strip steel into the desired channel configuration. This method produces a cross section of uniform dimensions within a tolerance of plus or minus 0.015", on outside dimensions.

  • 12 Gauge Back to Back Welded Channel 2-Pieces
  • 4-7/8" X 1-5/8"
  • wt./100 ft. - 508#

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Materials

H-122-A strut channels are produced from prime structural steel covered by the following specifications.

  • Pre-Galvanized Steel - ASTM A-653
  • Plain Steel - ASTM A-1011-04-SS
  • Aluminum (Type 6063T6) - ASTM B-221
  • Stainless Steel (Type 304 & 316) - ASTM A-240
  • Other materials and specifications available on request.

Finishes

All 'H-122-A strut channels are stocked in pre-galvanized and powder coated Supr-Green. Some sizes are stocked in zinc trivalent chromium, PVC or hot dipped galvanized.

  • Hot Dipped Galvanized - ASTM A-123
  • Zinc Trivalent Chromium - ASTM B-633-85
  • Powder Coated Supr-Green - ASTM B-117
  • PVC Coating 40 ML Thickness - Available Upon Request

Loading Data

  1. When calculating load at center of span, multiply load from table by 0.5 and deflection by 0.8.
  2. When calculating beam and column loads for aluminum, multiply by 33%.
  3. See Table 1 for additional technical data.

Notes

  • Other materials, finishes, lengths and configurations are available upon request. Please contact us for other product availability.

Technical Information

H-122-A strut channels are produced and stocked in 10' and 20' lengths with a tolerance of ± 1/8".

  • Other lengths are available upon request.
Span or Unbraced Height(in) Static Beam Load (X-X Axis) Max. Allowable Load at Slot Face(lbs) Column Loading Data
Max Allowable Uniform Load(lbs) Deflection at Uniform Load(in) Uniform Load at Deflection Max. Column Load Applied at C.G.
Span/180 Deflection(lbs) Span/240 Deflection(lbs) Span/360 Deflection(lbs) Weight of Channel(lbs) k=.65(lbs) k=.80(lbs) k=1.0(lbs) k=1.2(lbs)
12 5,220 * 0.01 5,220 * 5,220 * 5,220 * 5.1 8800 33310 33180 32950 32680
18 5,220 * 0.01 5,220 * 5,220 * 5,220 * 7.6 8750 32980 32680 32190 31600
24 5,220 * 0.02 5,220 * 5,220 * 5,220 * 10.2 8680 32530 32000 31150 30140
30 5,220 * 0.03 5,220 * 5,220 * 5,220 * 12.7 8590 31950 31150 29860 28360
36 5,220 * 0.05 5,220 * 5,220 * 5,220 * 15.2 8480 31270 30140 28360 26330
42 5,220 * 0.06 5,220 * 5,220 * 5,220 * 17.8 8350 30470 28980 26680 24120
48 4870 0.08 4870 4870 4870 20.3 8200 29580 27710 24870 21790
60 3900 0.13 3900 3900 3900 25.4 7860 27540 24870 21010 17090
72 3250 0.19 3250 3250 3250 30.5 7440 25240 21790 17090 12670
84 2780 0.26 2780 2780 2530 35.6 6960 22770 18650 13390 9310
96 2440 0.34 2440 2440 1930 40.6 6420 20220 15570 10270 7130
108 2160 0.43 2160 2160 1530 45.7 5820 17670 12670 8110 5630
120 1950 0.52 1950 1860 1240 50.8 5230 15200 10270 6570 **
144 1620 0.76 1620 1290 860 61 4230 10800 7130 ** **
168 1390 1.03 1260 950 630 71.1 3470 7930 5240 ** **
180 1300 1.18 1100 830 550 76.2 ** 6910 ** ** **
192 1220 1.34 970 730 480 81.3 ** 6070 ** ** **
216 1080 1.7 760 570 380 91.4 ** ** ** ** **
240 970 2.1 620 460 310 101.6 ** ** ** ** **

# Bearing Load may limit load | ** Not recommended - KL/r exceeds 200

Notes:

  • The beam capacities shown above include the weight of the strut beam. The beam weight must be subtracted from these capacities to arrive at the net beam capacity.
  • Allowable beam loads are based on a uniformly loaded, simply supported beam. For capacities of a beam loaded at midspan at a single point, multiply the beam capacity by 50% and deflection by 80%.
  • The above chart shows beam capacities for strut without holes. For strut with holes, multiply by the following:
    OS by 88%, OS3 by 90%, RS (9⁄16 holes) by 88%, RS-MOD (3⁄4 holes) by 85%, KO by 82%, OS2.5 by 86%
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