A series of mechanical tests are conducted to measure certain properties (elasticity, tensile strength, elongation, hardness, fracture toughness, impact resistance, stress rupture and fatigue); determining the characteristics and suitability of a material or component for a given application.

We have designed, developed and engineered pressure vessels with highly advanced mechanical testing devices incorporated into their design. This allows tests to be conducted at high temperature, high pressure and within an aggressive media.

Pressure vessels with mechanical testing mechanisms, provide the ability to action testing on components in environments that replicate real-life service conditions; especially vital in sectors such as energy, aerospace and nuclear.

This negates the need for separate mechanical testing machines, to validate the performance of materials and joints in aggressive environments; measure the environmental effects on a part’s mechanical properties or determine flaw tolerance and provide accelerated ageing data.


  • 50kn Capacity – Tensile or Compression Loads
  • External LVDT Measurement with Dual Push Rod & Graphite Gland Packing
  • In-Line Electro-Mechanical Actuator
  • Motion Controller with RS232 Connection To National Instruments Control System
  • Pressure Balanced & Liquid Cooled Pull Rod Assembly
  • Rated Up To 1700 Bar At 300°C
  • Slow Strain Rate Capability 2.5X10-7mm/S2
  • Speed Ratio 500,000:1 (For Max. Rewind Speed)


  • ASTM G129 Slow Strain Rate Testing SSRT
  • ASTM G38, G49, G64 & G139 Stress-Corrosion Testing
  • Exposure to Temperatures Up To 300°C, At Pressures Up To 1700 Bar
  • Fatigue Crack Growth Testing (ASTM E647) At 1000 Bar Between -50°C & +100°C
  • Full-Scale H2S Sour Service Fatigue Testing Resistance to HISC Hydrogen Induced Stress Cracking & SSC Sulphide Stress Cracking
  • Tensile & Fracture Testing at Pressures Up To 1000 Bar, At Temperatures Between -50°C & +100°C

Applications & Customer Uses

Our mechanical testing devices are incorporated into pressure vessels and autoclaves for customers, who provide testing services in materials research centres.

Testing is conducted to determine safe operating limits for materials, replicate extreme site conditions in laboratory conditions, perform accelerated age testing, validate materials and joining techniques to certify use in aggressive environments.

Project Examples

Project examples to follow