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Knowledgebase >

Elongation Testing

1 Mins

Knowledgebase >

Elongation Testing

Industrial Physics’ companies have been in the testing game for a long time…and we’ve learnt a great deal about elongation testing.

Our highly accurate testing devices offer insightful information on how far a sample will stretch before it breaks. The result is typically normally expressed as a percentage, also known as percent elongation (% elongation).

It’s important you know your gauge length to carry out critical and accurate elongation calculations. This consists of two measurement points: the first is the starting distance between the upper and lower grip edges; the second is the distance travelled by the grips when the sample breaks. Elongation is calculated by dividing the distance travelled by the original gauge length.

View our United Testing Systems machines here

Many standards require you to measure elongation. And we can help you. With a large selection of equipment that will make sure you enjoy consistent, repeatable results to meet or exceed all of the main ones. These include: 

ASTM A36 / A36M – 14  – Standard Specification for Carbon Structural Steel
ASTM A370 – 17a  – Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A500 / A500M – 18  – Standard Specification for Cold-Formed Welded and Seamless Carbon Steel Structural Tubing in Rounds and Shapes
ASTM A931-08(2013) Standard Test Method for Tension Testing of Wire Ropes and Strand
ASTM D1456 – 86(2014)  – Standard Test Method for Rubber Property—Elongation at Specific Stress
ASTM D3759 / D3759M – 05(2011)  – Standard Test Method for Breaking Strength and Elongation of Pressure-Sensitive Tape
ASTM D412 – 16  – Standard Test Methods for Vulcanized Rubber and Thermoplastic Elastomers—Tension
ASTM D4595-17 – Standard Test Method for Tensile Properties of Geotextiles by the Wide-Width Strip Method
ASTM D4632/D4632M-15a – Standard Test Method for Grab Breaking Load and Elongation of Geotextiles
ASTM D5035-11(2015) – Standard Test Method for Breaking Force and Elongation of Textile Fabrics (Strip Method)
ASTM D5083 – 17 – Standard Test Method for Tensile Properties of Reinforced Thermosetting Plastics Using Straight-Sided Specimens
ASTM D638 – 14 – Standard Test Method for Tensile Properties of Plastics
ASTM D882 – 12  – Standard Test Method for Tensile Properties of Thin Plastic Sheeting
ASTM E8 / E8M – 16a  – Standard Test Methods for Tension Testing of Metallic Materials
B557-15 – Standard Test Methods for Tension Testing Wrought and Cast Aluminum- and Magnesium-Alloy Products