My AccountContact Us1-866-900-7937
Toll-Free 1-866-900-7937

construction packaging polyester strapping

What Is Tensile Strength?

Tensile strength is defined as the stress at which a product, such as plastic strapping, steel strapping, rope, or wire, breaks or permanently disfigures.

There are three definitions of tensile strength:

  • Yield Strength - The stress at which material strain changes from elastic deformation to plastic deformation, which means it is permanently deformed.
  • Ultimate Strength - The maximum stress a material can withstand when subjected to tension, compression, or shearing. It is the maximum stress on the stress-strain curve.
  • Breaking Strength- The stress coordinate on the stress-strain curve at the point of rupture.

In most poly strapping applications, the tensile strength is the average breaking strength.

Strapping Width and Gauge Feet per Pound Average Strap Break Strength
Regular Duty Strapping
1/2"x .015 39.3 950
1/2"x .020 29.4 1220
1/2"x .023 25.6 1880
5/8"x .020 23.6 1500
5/8"x .023 20.5 1720
3/4"x .015 26.2 1420
3/4"x .020 19.6 1810
3/4"x .023 17.1 2050
3/4"x .028 14.1 2460
Strapping Width and Gauge Feet per Pound Average Strap Break Strength
High Tensile Strapping
1/2"x .020 29.4 1500
5/8"x .020 23.6 1875
5/8"x .023 20.5 2150
3/4"x .020 19.6 2250
3/4"x .023 17.1 2600
3/4"x .025 15.7 2800
3/4"x .029 13.1 3050
3/4"x .031 12.7 3350
1 1/4"x .020 11.8 3825
1 1/4"x .025 9.4 4660
1 1/4"x .029 8.1 5250
1 1/4"x .031 7.6 5500
1 1/4"x .044 5.3 7610
2"x .044 3.3 12300

How to Determine the Tensile Strength Needed for Your Poly Strapping Application:

  • Record the weight of your pallet.
  • Divide by the number of straps that will be applied to the pallet.

Example: A 2,000-lb. pallet is secured with four straps. 2,000 lbs. divided by four straps equals a 500-lb. plastic strapping tensile strength, or break strength, per strap.


Read Related Articles

Get A Free Quote / Need Help ? Contact Us