H-172-OSA

Name: H-172-OSA
Brand: Haydon

Overview

H-172 Back to Back Welded Channel With Slots

H-172-OSA 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 ±0.015" on outside dimensions.

12 Gauge Back-to-Back Welded Channel
1³/₄" X 1⁵/₈"
Weight/100 ft. - 268 lbs.
H-172-OSA is a light-duty welded channel capable of top and bottom attachment. This product is commonly used for trapeze to support MEP systems.

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Specifications

Material

H-Strut channels are produced from prime structural metals covered by the following specifications. (See the technical section for additional information.)

Aluminum (Type 6063-T6) – ASTM B221
Plain Steel – ASTM A1011 SS Grade 33
Pre-Galvanized Steel – ASTM A653 SS Grade 33, G90
Stainless Steel (Type 304 & 316L) – ASTM A240
Other materials and specifications are available upon request.

Finishes

H-Strut is available in powder-coated and zinc trivalent. Other finishes are available upon request.

Hot-Dip Galvanized – ASTM A123
Zinc Trivalent Chromium (ZTC) – ASTM B633
Powder-Coated

Loading Data

Load capacities include a safety factor of 1.68 for beam loads and 1.80 for column loads.
When calculating load at the center of the span, multiply the load from the table by 0.5 and deflection by 0.8.
When calculating beam and column loads for aluminum, multiply by 33%.

General

H-STRUT® channels are manufactured from high quality, domestically sourced structural steel and roll formed into shape. These products comply with MFMA-4 standards, and beam and column load tables are calculated in accordance with the ANSI North American Specification for the Design of Cold-Formed Steel Structural Members, 2016 Edition.

Welding

Channel combinations of two or more elements are spot welded together to form various multiple combinations. The spot welds are placed two inches on center throughout the length of the multiple channel sections.

Length Information

H-Strut channels are produced in standard 10' and 20' lengths with a tolerance of ±¹⁄₈". Other lengths are available upon request.

Technical Information

H-172-OSA strut channels are produced in standard 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.
	Max Allowable Uniform Load (lbs)	Deflection at Uniform Load (in)	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)
24	630	0.10	630	630	420	2.8	2,470	7,820	7,370	6,830	6,360
36	420	0.22	370	280	190	4.2	2,340	6,900	6,360	5,720	5,140
48	310	0.39	210	160	100	5.6	2,200	6,140	5,530	4,760	4,020
60	250	0.61	130	100	70	7.0	2,080	5,480	4,760	3,840	**
72	210	0.89	90	70	50	8.3	1,930	4,860	4,020	**	**
84	180	1.21	70	50	30	9.7	**	4,250	**	**	**
96	150	1.51	50	40	30	11.1	**	3,660	**	**	**
108	140	2.00	40	30	20	12.5	**	**	**	**	**
120	120	2.35	30	30	20	13.9	**	**	**	**	**
144	100	3.39	20	20	NR	16.7	**	**	**	**	**
168	90	4.84	20	NR	NR	19.5	**	**	**	**	**
192	70	5.62	NR	NR	NR	22.2	**	**	**	**	**
216	70	8.00	NR	NR	NR	25.0	**	**	**	**	**
240	60	9.41	NR	NR	NR	27.8	**	**	**	**	**

# Bearing Load may limit load | NR = Not Recommended | * Load limited by spot weld shear | ** Not recommended - KL/r exceeds 200

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%
Refer to the latest Haydon Engineering Catalog in our Literature Section for reduction factors for unbraced lengths or call us 1-800-242-9366.

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