GB/T 1634 — Temperature of Deflection Under Load (HDT/DTUL) for Plastics
GB/T 1634 is the Chinese national multi-part standard for determining the temperature of deflection under load of plastics, a heat-resistance property. To match this to your program, talk with our team.
What GB/T 1634 Covers
It determines the temperature at which a plastic specimen deflects by a set amount under a constant flexural load, indicating the heat resistance of the material for service-temperature decisions.
How the Test Is Run
A bar specimen is loaded in flexure and heated at a controlled rate, and the temperature at which it reaches the specified deflection is recorded.
Reading the Designation
Cited as GB/T 1634 with its part and year. Confirm the loading and deflection conditions. To configure a heat-deflection setup, request a quote.
TensileMill CNC products for GB/T 1634
Our specimen-preparation systems and testing equipment compatible with GB/T 1634.
TensileMill CNC MICRO – Precision Flat Tensile & Impact Micro Machine
MICRO – Precision Flat Tensile & Impact Sample Preparation
Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell
Set up GB/T 1634 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.