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)
B42 1538 (6841) .022 (.56) 1538 (6841) 1538 (6841)
B42A 1590* (7072) .005 (.13) 1590* (7072) 1590* (7072)
24
(609)
B42 769 (3420) .088 (2.23) 769 (3420) 582 (2589)
B42A 1590* (7072) .038 (.96) 1590* (7072) 1590* (7072)
36
(914)
B42 513 (2282) .198 (5.03) 388 (1726) 259 (1152)
B42A 1428 (6352) .114 (2.89) 1428 (6352) 1248 (5551)
48
(1219)
B42 384 (1708) .352 (8.94) 218 (970) 145 (645)
B42A 1071 (4764) .203 (5.15) 1053 (4684) 702 (3122)
60
(1524)
B42 308 (1370) .550 (13.97) 140 (623) 93 (413)
B42A 857 (3812) .318 (8.08) 674 (2998) 449 (1997)
72
(1829)
B42 256 (1139) .792 (20.11) 97 (431) 65 (289)
B42A 714 (3176) .457 (11.61) 468 (2082) 312 (1388)
84
(2133)
B42 220 (978) 1.079 (27.40) 71 (316) 48 (213)
B42A 612 (2722) .623 (15.82) 344 (1530) 229 (1018)
96
(2438)
B42 192 (854) 1.409 (35.79) 55 (244) 36 (160)
B42A 535 (2380) .813 (20.65) 263 (1170) 176 (783)
108
(2743)
B42 171 (760) 1.783 (45.29) 43 (191) 29 (129)
B42A 476 (2117) 1.029 (26.13) 208 (925) 139 (618)
120
(3048)
B42 154 (685) 2.202 (55.93) 35 (155) 23 (102)
B42A 428 (1904) 1.271 (32.28) 168 (747) 112 (498)
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)
B42 9138 (40648) 3493 (15537) 9283 (41293) 8916 (39660) 8670 (38566)
B42A 21094 (93831) 5834 (25951) 21304 (94765) 20793 (92492) 20469 (91050)
24
(609)
B42 8137 (36195) 3145 (13989) 8540 (37988) 7589 (33757) 7050 (31360)
B42A 19757 (87883) 5585 (24843) 20299 (90294) 18964 (84356) 18094 (80486)
36
(914)
B42 7050 (31360) 2722 (12108) 7657 (34060) 5925 (26356) 4335 (19283)
B42A 18094 (80486) 5237 (23295) 19067 (84814) 16654 (74080) 15057 (66977)
48 (1219)
B42 5405 (24042) 2227 (9906) 6786 (30185) 3512 (15622) 2439 (10849)
B42A 16139 (71790) 4818 (21431) 17632 (78431) 13906 (61857) 11387 (50652)
60
(1524)
B42 3512 (15622) 1718 (7642) 5272 (23451) 2247 (9995) 1561** (6943)
B42A 13906 (61857) 4352 (19358) 16008 (71207) 10710 (47640) 7531 (33499)
72
(1829)
B42 2439 (10849) 1351 (6009) 3694 (16432) 1561** (6943) 1084** (4822)
B42A 11387 (50652) 3856 (17152) 14200 (64165) 7531 (33499) 5230 (23264)
84
(2133)
B42 1792 (7971) 1087 (4835) 2714 (12072) 1147** (5102) 796** (3541)
B42A 8645 (38455) 3332 (14821) 12206 (54295) 5533 (24612) 3842 (17090)
96
(2438)
B42 1372** (6103) 891 (3963) 2078 (9243) 878** (3905) – –
B42A 6619 (29443) 2873 (12780) 10012 (44535) 4236 (18842) 2942** (13086)
108
(2743)
B42 1084** (4822) 743 (3305) 1642 (7304) – – – –
B42A 5230 (23264) 2495 (11098) 7922 (35239) 3347 (14888) 2324** (10337)
120
(3048)
B42 878** (3905) 628 (2793) 1330** (5916) – – – –
B42A 4236 (18842) 2182 (9706) 6417 (28544) 271
1**
(12059) 1883** (8376)
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
B42 Beam & Column Loading Data
31