Unistrut P3301T 1-5/8'' x 1-3/4'' Double Slotted Channel

Sku:

P3301T

UOM: LGT

Product Details

Unistrut's P3301T (back-to-back slotted) has slots between the two profiles on the welded side. This slotted option is popular because it's adjustable, yet has modest load capacity loss versus the solid version. It has 85% of the capacity of the solid version of the profile. This channel is commonly used for trapeze supports, anchoring to concrete, ceiling grids, pipe, conduit, duct and cable tray supports, racks, and other general framing. For application examples, refer to our Application Showcase. Product dimensions are 1 5/8" wide x 1 3/4" tall x 12 ga. thick; back-to-back with slots. The slots are 2" wide x 11/16" long, 3" on center and sized for use with 5/8" threaded rod or fasteners. Our P3301T is available in the following finishes: Pre-Galvanized (PG), Hot-Dip Galvanized (HG), Plain (PL), Green (GR), Zinc Dichromate (ZD) and Stainless Steel (SS).


Unistrut Buffalo is a division of Eberl Iron Works, Inc.

 

     

More Information
Pricing SKU P3301T-10PG
SKU P3301T
Pack Size Length
UOM LGT
Brand Unistrut

MATERIAL

Unistrut channels are accurately and carefully cold formed to size from low-carbon strip steel.

All spot-welded combination members, except P1001T, are welded 3" (76 mm) maximum on center.

STEEL: PLAIN

12 Ga. (2.7 mm), 14 Ga.(1.9 mm) and
16 Ga. (1.5 mm) ASTM A1011 SS GR 33

STEEL: PRE-GALVANIZED

12 Ga. (2.7 mm), 14 Ga. (1.9 mm) and
16 Ga. (1.5mm) ASTM A653 GR 33

For other materials, see Special Metals or Fiberglass sections.

FINISHES

All channels are available in:

  • Perma Green III (GR)
  • Pre-galvanized (PG), conforming to ASTM A653 G90
  • Hot-dipped galvanized (HG), conforming to ASTM A123
  • Plain (PL)
  • Unistrut Defender™ (DF), conforming to ASTM A1046

*** Perma Green finish is a commercial grade finish, and as such scuffs and scratch marks are to be expected. If a flawless finish is desired, it is recommended to apply a matching touch up paint ***

DIMENSIONS

Imperial dimensions are illustrated in inches. Metric dimensions are shown in millimeters and rounded to one decimal place.

STANDARD LENGTHS

Standard lengths are 10 feet (3.05m) and 20 feet (6.10m). Tolerances are ±1⁄8" (3 mm). Special lengths are available for a small cutting charge with a tolerance of ±1⁄8" (3 mm).

CURVED CHANNEL

Contact your local Unistrut Service Center or Unistrut Corporation for more information.

LOAD DATA

All beam and column load data pertains to carbon steel and stainless steel channels. Load tables and charts are constructed to be in accordance with the SPECIFICATION FOR THE DESIGN OF COLD-FORMED STEEL STRUCTURAL MEMBERS 2007 EDITION published by the AMERICAN IRON AND STEEL INSTITUTE USING ASD METHOD. Loads are based on 33 ksi steel cold formed to 42 ksi.

Type of Load Safety Factor to Yield Strength Safety Factor to Ultimate Strength
Beam Loads 1.67 2.0
Column Loads 1.80 2.2

P3301 - BEAM LOADING

Uniform Loading at Deflection
Span (In) Max Allowable Uniform Load (Lbs) Deflection at Uniform Load (In) Span/180 (Lbs) Span/240 (Lbs) Span/360 (Lbs)
24 1690 0.06 1690 1690 1690
36 1130 0.13 1130 1130 860
48 840 0.23 840 720 480
60 680 0.37 620 460 310
72 560 0.52 430 320 210
84 480 0.71 310 240 160
96 420 0.93 240 180 120
108 380 1.20 190 140 100
120 340 1.47 150 120 80
144 280 2.09 110 80 50

 

P3301 - COLUMN LOADING

Maximum Column Load Applied at C.G.
Unbraced Height (In) Max Allowable Load at Slot Face (Lbs) K = 0.65
(Lbs)
K = 0.80
(Lbs)
K = 1.0
(Lbs)
K = 1.2
(Lbs)
24 4290 16990 16580 15770 14720
36 4150 15890 14720 12980 11120
48 3940 14160 12360 9880 7510
60 3650 12210 9880 6940 4820
72 3270 10190 7510 4820 3350
84 2800 8220 5530 3540 **
96 2410 6420 4240 ** **
108 2080 5070 3350 ** **

 

Notes:
* Load limited by spot weld shear.
** KL⁄r > 200
NR = Not Recommended.
1. Beam loads are given in total uniform load (W Lbs) not uniform load (w lbs/ft or
w lbs/in).
2. Beam loads are based on a simple span and assumed to be adequately laterally
braced. Unbraced spans can reduce beam load carrying capacity. Refer to Page 62
for reduction factors for unbraced lengths.
3. For pierced channel, multiply beam loads by the following factor:
"KO" Series........95%    "T" Series...........85%
"HS" Series........90%    "SL" Series.........85%
"H3" Series.........90%   "DS" Series........70%
"WT" Series........85%
4. Deduct channel weight from the beam loads.
5. For concentrated midspan point loads, multiply beam loads by 50% and the
corresponding deflection by 80%. For other load conditions refer to page 18.
6. All beam loads are for bending about Axis 1-1.
Parameter P3300 P3301
Area of Section 0.395 In² 0.790 In²
Axis 1-1          
  Moments of Inertia (I) 0.037 In⁴ 0.176 In⁴
  Section Modulus (S) 0.072 In³ 0.201 In³
  Rdius of Gyration (r) 0.306 In 0.472 In
Axis 2-2          
  Moments of Inertia (I) 0.143  In⁴ 0.285 In⁴
  Section Modulus (S) 0.176  In³ 0.351 In³
  Rdius of Gyration (r) 0.601  In 0.601 In

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