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Universal testers - Steel (re-bars)

Coaxial extensometers with fixed base length

ASTM A370
Main features
  • Applied directly to the specimen up to the failure
  • Measures extension of both elastic and plastic stage
  • High precision electronic transducer
  • 2 model dedicated to rebars
  • 1 model dedicated to strands 
General description
General description
Introduction
Extensometers used for measuring the extension of specimens in traction, particularly in the case of steel and brittle materials, are only able to detect strain during the first stage of the test, or rather, while the brittle materials conserve their elasticity as they have to be disconnected before failure. This simple and economic system fully satisfy these requirements because:
  • it is applied directly to the specimen
  • it remains connected until breakage
  • it measures extensions with high precision of both elastic and plastic stage and with the appropriate simple adjustment, it is connectable to almost all testing machines

Description
The extensometers are basically made by 2 clamping devices and a middle tubolar steel part determining the gauge length of 200 mm.


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Technical specifications


Models 70-C0961/F 70-C0961/G 70-C0961/H 70-C0961/E
Measuring range dia. Min/Max 4 - 16 16 - 40 4 - 26 6.35 - 15.2 (strands)
Base length 200 mm 200 mm 200 mm 600 mm
Transducer travel 50 mm 75 mm 50 mm 50 mm

Ordering info

70-C0961/F
Coaxial electronic extensometer for round specimens from 4 to 16 mm dia.              
Gauge length: 200 mm. Travel: 50 mm.      

70-C0961/G
Coaxial electronic extensometer for round specimens from 16 to 40 mm dia.              
Gauge length: 200 mm. Travel: 75 mm.                              

70-C0961/H
Coaxial electronic extensometer for round specimens from 4 to 26 mm dia.              
Gauge length: 200 mm. Travel: 50 mm.      
 
70-C0961/E
Coaxial electronic extensometer to measure the elongation of strand wires up to failure.              
Gauge length: 600mm; Max travel: 50mm           

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