Product Overview

**Where the slenderness ratio KL exceeds 200, and K = end fixity factor, L = actual length and r = radius of gyration.
r
Uniform Load @ Deflection =
Beam Span Channel Uniform Load and Deflection 1/240 Span 1/360 Span
In. mm Style Lbs. N In. mm Lbs. N Lbs. N
12
(305)
B56 610 (2713) .027 (.68) 610 (2713) 610 (2713)
B56A 610* (2713) .004 (.10) 610* (2713) 610* (2713)
24
(609)
B56 405 (1801) .109 (2.77) 372 (1655) 248 (1103)
B56A 610* (2713) .035 (.89) 610* (2713) 610* (2713)
36
(914)
B56 270 (1201) .245 (6.22) 165 (734) 1
10
(489)
B56A 610* (2713) .121 (3.07) 610* (2713) 502 (2233)
48
(1219)
B56 202 (898) .435 (11.05) 93 (413) 62 (276)
B56A 530 (2357) .250 (6.35) 423 (1881) 282 (1699)
60
(1524)
B56 162 (720) .680 (17.27) 59 (262) 40 (178)
B56A 424 (1886) .391 (9.93) 271 (1205) 181 (805)
72
(1829)
B56 135 (600) .980 (24.89) 41 (182) 28 (124)
B56A 353 (1570) .563 (14.30) 188 (836) 125 (556)
84
(2133)
B56 116 (516) 1.334 (33.88) 30 (133) 20 (89)
B56A 303 (1348) .766 (19.45) 138 (614) 92 (409)
96
(2438)
B56 101 (449) 1.742 (44.24) 23 (102) 15 (67)
B56A 265 (1179) 1.001 (25.42) 106 (471) 71 (316)
108
(2743)
B56 90 (400) 2.205 (56.01) 18 (80) 12 (53)
B56A 236 (1050) 1.267 (32.18) 84 (373) 56 (249)
120
(3048)
B56 81 (360) 2.722 (69.14) 15 (67) 10 (44)
B56A 212 (943) 1.564 (39.72) 68 (302) 45 (200)
BEAM LOADING
Max. Column Loading K = .80 Max. Column Loading (Loaded @ C.G.)
Unbraced Channel Loaded@ Loaded@
Height Style C.G. Slot Face K = .65 K = 1.0 K = 1.2
In. mm Lbs. N Lbs. N Lbs. N Lbs. N Lbs. N
12
(305)
B56 4968 (22099) 2182 (9706) 5044 (22437) 4845 (21551) 4702 (20915)
B56A 10237 (45536) 3365 (14968) 10291 (45776) 10148 (45140) 10039 (44655)
24
(609)
B56 4367 (19425) 1903 (8465) 4624 (20568) 3985 (17726) 3572 (15889)
B56A 9762 (43423) 3202 (14243) 9977 (44380) 9405 (41835) 8969 (39896)
36
(914)
B56 3572 (15889) 1557 (6926) 4034 (17944) 2658 (11823) 1845 (8207)
B56A 8969 (39896) 2955 (13144) 9454 (42053) 8167 (36328) 7186 (31965)
48 (1219)
B56 2335 (10386) 1164 (5178) 3290 (14634) 1495 (6650) 1038 (4617)
B56A 7860 (34963) 2649 (11783) 8722 (38797) 6434 (28620) 4731 (21044)
60
(1524)
B56 1495 (6650) 862 (3834) 2264 (10071) 957 (4257) 664** (2953)
B56A 6434 (28620) 2307 (10262) 7780 (34607) 4360 (19394) 3028 (13469)
72
(1829)
B56 1038 (4617) 661 (2940) 1572 (6992) 664** (2953) 461** (2050)
B56A 4731 (21044) 1937 (8616) 6629 (29487) 3028 (13469) 2103 (9354)
84
(2133)
B56 763** (3394) 522 (2322) 1
155
(5137) 488** (2171) – –
B56A 3476 (15462) 1619 (7201) 5269 (23437) 2224 (9893) 1545** (6872)
96
(2438)
B56 584** (2598) 422 (1877) 884** (3932) – – – –
B56A 2661 (1
1837)
1368 (6085) 4031 (17931) 1703** (7575) 1
183**
(5262)
108
(2743)
B56 461** (2050) 348 (1548) 699** (3109) – – – –
B56A 2103 (9354) 1
169
(5200) 3185 (14167) 1346** (5987) 934** (4154)
120
(3048)
B56 – – 291 (1294) 566** (2417) – – – –
B56A 1703** (7575) 1008 (4484) 2580 (1
1476)
1090** (4848) – –
COLUMN LOADING
Based on simple beam condition using an allowable design stress of 25,000 psi (172 MPa) in accordance with MFMA, with adequate lateral
bracing (see page 11 for further explanation). Actual yield point of cold rolled steel is 42,000 psi. To determine concentrated load capacity at
mid span, multiply uniform load by 0.5 and corresponding deflection by 0.8. *Failure determined by weld shear.
Reference page 14 for general fitting and standard finish specifications.
Channel & Combinations
B56 Beam & Column Loading Data
37