Vertical Universal Hydraulic Tensile Testing Machine For Rebars , Steel Bars

Vertical Universal Hydraulic Tensile Testing Machine For Rebars , Steel Bars

Description

computer control electro-hydraulic servo universal testing machine , It is suitable to test various metallic & non-metallic materials for tension, compression, bending and shearing strength. It can be capable of testing the characters of materials on physical & technology properties. Equipped with the computer & software & printer, it can display, record, process and print the test results, and control test procedures as the set program and can draw test curves automatically in real time. The machine complies with ASTM, DIN, ISO standards. It is simple, easy to operate and widely used in works, laboratories and universities for material properties research and quality control.

Main Features

Application.
UTM-2000D Information for the selection and application of steels for use at lower and elevated temperatures is given, for example, in EN 10269, ASTM F2281 and in ASTM A 320/A 320M. Certain fasteners might not fulfil the tensile or torsional requirements of this part of ISO 898-1 because the geometry of their heads reduces the shear area in the head compared to the stress area in the thread. These include fasteners having a low head, with or without external driving feature, a low round or cylindrical head with internal driving feature or a countersunk head with internal driving feature (see 8.2). This part of ISO 898 is applicable to bolts, screws and studs
a) made of carbon steel or alloy steel,
b) having triangular ISO metric screw thread according to ISO 68-1,
c) with coarse pitch thread M1,6 to M39, and fine pitch thread M8×1 to M39×3,
d) with diameter/pitch combinations according to ISO 261 and ISO 262,
e) having thread tolerances according to ISO 965-1, ISO 965-2 and ISO 965-4.
It is not applicable to set screws and similar threaded fasteners not under tensile stresses (see ISO 898-5). It does not specify requirements for such properties as
⎯ weldability,
⎯ corrosion resistance,
⎯ resistance to shear stress,
⎯ torque/clamp force performance, or
⎯ fatigue resistance.