Home >> Products >> Universal Testing Machine >> Slow Strain Stress Rate Testing >> Slow strain rate (SSRT) stress corrosion (SCC) tensile testing machine
Slow strain rate (SSRT) stress corrosion (SCC) tensile testing machine

Slow strain rate (SSRT) stress corrosion (SCC) tensile testing machine

Model: UT1024 , ASTM G47, ASTM G129

Slow strain rate (SSRT) stress corrosion (SCC) testing machine is used to conduct corrosion tensile tests on materials in corrosive environments, mainly to study the stress corrosion sensitivity of metal materials in corrosive solutions.

The frame structure is in the form of a frame, and the loading unit is flexibly installed at the upper or lower end according to the test requirements to adapt to the test requirements of different media environments. The environmental medium is a solution medium under low temperature and normal pressure. The experimental kettle is generally made of high borosilicate glass, which not only reduces the equipment cost, but also ensures the corrosion resistance to general media.

General introduction

Slow strain rate (SSRT) stress corrosion (SCC) testing machine is used to conduct corrosion tensile tests on materials in corrosive environments, mainly to study the stress corrosion sensitivity of metal materials in corrosive solutions.

The frame structure is in the form of a frame, and the loading unit is flexibly installed at the upper or lower end according to the test requirements to adapt to the test requirements of different media environments. The environmental medium is a solution medium under low temperature and normal pressure. The experimental kettle is generally made of high borosilicate glass, which not only reduces the equipment cost, but also ensures the corrosion resistance to general media.


Test function:
Ordinary tensile test;
Constant load creep/stress corrosion test;
Slow strain rate tensile test;
Low-cycle fatigue/corrosion fatigue test;
Specimen crack germination and crack propagation rate measurement test;
Constant K control, rising K control, lower K control test.

Key Features

  • Main features
  • Standard

1) High rigidity heavy duty frame;

2) The equipment structure is simple, convenient for experimental expansion, tension and bending shear, can be used

3) The use of sensor force measurement, large speed ratio deceleration system as an afterburner mechanism, electric adjustment space, ease of operation due to the lever type host
4) High-performance all-digital servo loading control system, high speed control accuracy;
5) Double deformation sensor can be used, and the specimen deformation measurement accuracy is high;
6) Pressure balancing device;
7) Integrated STC800 measurement and control system, easy to expand and use;
1)  ASTM G47-98 Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products.
2)  ISO 7539-7-2005 Corrosion of metals and alloys – Stress corrosion testing Part7: Method for slow strain rate testing
3)  ASTM E606 Standard Test Method for Strain-Controlled Fatigue Testing, ASTM International, West Conshohocken
4)  ASTM E647 Standard Test Method for Measurement of Fatigue Crack Growth Rates
5)  ASTM E399 Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness K1c of Metallic Materials
6)  ASTM G111 Guide for Corrosion Tests in High Temperature or High Pressure Environment, or Both

7)  ASTM G47-98 Standard Test Method for Determining Susceptibility to Stress-Corrosion Cracking of 2XXX and 7XXX Aluminum Alloy Products

8), ASTM G129 - 00(2006) Standard Practice for Slow Strain Rate Testing to Evaluate the Susceptibility of Metallic Materials to Environmentally Assisted Cracking

Main technical specification

Maximum test force50kN
Test force range1% to 100% F.S
Relative error of test force indication±0.5%
Maximum moving range of loading head80mm
Loading head movement speed1mm/s~1x10-7mm/s
Load head displacement measurement accuracy±0.5%
Loading head displacement resolution0.05μm
Deformation measurement range0~20mm
Deformation measurement resolution1 μm
Deformation measurement accuracy±0.5%
Experimental kettle operating temperatureroom temperature ~ 65 °C (optional)
Maximum operating pressure of the experimental kettle0.1MPa   (optional)
Experimental kettle volumenot less than   3L

Main accessories (Standard delivery with machine)


ItemQuantity
Frame1 set
Load cell (USA Celtron)1 set
Servo motor (FUJI/Panasonic)1 set
Test fixture1 set
Raster displacement sensors1 pc
Software and control card system1 set
Computer1 set
Documents (Manual, packing list, certificate)


Require More Customized Solutions?

We offer customization to meet your specific needs. Our expert team will collaborate with you to develop the perfect product for you
Customize Now

Beijing United Test Co., Ltd.