Skip to content
ADMET Logo ADMET Logo ADMET Logo
Sales Inquiries
(800) 667-3220
  • ABOUT ADMET
  • TESTING APPLICATIONS
  • PRODUCTS
  • RETROFITS
  • SERVICE/SUPPORT
  • BLOG
  • CONTACT

Elongation at Break

HomeTesting ApplicationsGlossaryElongation at Break
Elongation at Break
Contact Us!
  • Definition

  • White Paper Download

  • Definition

Elongation at Break or Elongation is one measure of ductility.  The conventional means by which we obtain Elongation is by pulling a specimen in tension until fracture.  Elongation is defined as the increase in the gage length, Lo, of a test piece subjected to tensile forces divided by the original gage length.  Elongation is expressed as a percentage of the original gage length and is given by:

Elongation (%) = ΔL/Lo x 100

Where:

Lo is the original gage length

ΔL is the change in length of the original gage length measured after the specimen fractures and the specimen is fitted together

A punch is often used to apply the gage marks to each specimen.  The change in gage length, ΔL, is determined by carefully fitting the ends of the fractured specimen together and measuring the distance between the gage marks.  In reporting Elongation, both the original gage length and percentage increase are to be reported.  If any portion of the fracture occurs on or outside a gage mark, Elongation may not be representative of the material.

ASTM E8 governs the determination of Elongation for Metals

  • White Paper Download



Contact ADMET, Inc.

51 Morgan Drive | Norwood, MA 02062

Phone: (800) 667-3220

Fax: (781) 769-0884

Email: info@admet.com

Employment Opportunities
for Existing Clients

Sales Inquiries

Test Systems

Universal Testing Machines
Biaxial Testers
Fatigue Testers
Torsion Testers
Engineered Solutions
Micro Testers

Other Products

Controllers and Indicators
Test Fixtures and Accessories

Links for Professionals

Quality Control
Testing Labs
Research and Development
Academia

Service and Support

Technical Support
Calibration
Training
Manuals and Forms

Recent Posts

  • Custom Material Testing Machines By ADMET Engineering
  • Why Do I Need Material Testing?
  • How Can I Ensure My Products Meet ASTM Standards?
  • Should Material Testing Be Done On-Site or at a Testing Facility?
  • Metals Tensile Testing Concepts, Equations, And Theory
Copyright 1994 - 2022 ADMET, Inc.  |  All Rights Reserved
TOLL FREE (800) 667-3220
YouTubeTwitterLinkedInEmail
Page load link

Forgot your password?

  • Sales
  • Support
  • Calibration
  • Calculators
Go to Top