Mercury Mercantile -Industrial Machines, Fitness Solutions

Microcomputer controlled tensile stress relaxation testing machine for steel strand

Application
This machine is used to do stress-relaxation Test of steel strand, galvanized steel wire, indented wire etc metal materials. The host  machine adopts horizontal structure, adjust work space by lead screw, and the transmission system is inside the machine base, the machine has very high stiffness, which guarantee the accuracy of test results.

Test standard


ISO15630-3: 2010 Steel for reinforcement and prestressing of concrete- Test methods part 3: prestressing steel
ASTM E328-13: Standard test methods for stress relaxation for materials and structures
ASTM A416 Standard specification for low-relaxation, seven-wire steel strand for prestressed concrete

Specifications

Model

KSC-300 KSC-500

Max. Load

300kN 500kN

Measuring range of test force

12-300kN 20-500kN

Accuracy of indicating force: ≤±1%

≤±1%

Loading speeding

100-5000N/s, arbitrary setting

Loading speed relaxation test space

2000mm

Chuck displacement speed

0.001-25mm/min

Accuracy of chuck displacement speed

±0.5%

Displacement resolution

0.001mm

Tensile stroke

0-100mm

Creep of Load Cell

≤0.2% (within 30 minutes

Specimen Dimensions

Optional according to customer requirements

PC Strand

φ9.53mm,φ12.7mm, φ15.24mm

PC wire

Φ3~Φ9

PC Bar

Φ7~Φ18

Resolution of temperature sensor

0.1℃

Accuracy of temperature sensor

0.3℃

Power supply

3-phase,5 wires (3 live lines L,1 null line N,1 earth line PE) 380V,50Hz

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