The ability to safely and consistently hold a load for many, many performance hours is a critical characteristic for parts and products supplied to aerospace, aviation, defense, automotive, nuclear energy, wind power, marine, and other industries.

Stress rupture testing and creep testing are specialized services that provide manufacturers with critical data about their product's performance over time. During this testing, material is held under a definite constant load for a given period of time, at up to 1800°F, until failure. Stress rupture and creep are critical to material across industries, including aerospace, defense, transportation, power generation, and more. 

Element's expert engineering staff and Nadcap-approved testing labs hold the rigorous approvals necessary to offer stress rupture and creep testing to designers, manufacturers, and buyers of quality critical parts such as fasteners and other hardware. 

Capacity and qualifications

Element applies Six Sigma and Lean principles and methods to operate our highly productive laboratories and provide cost-effective and accurate testing programs. We work with our customers to create customized and efficient schedules that meet their volume and turnaround needs. Our stress rupture testing and creep testing laboratories are continuously growing to provide the capacity our customers need. Element laboratories are also fully supported by experienced in-house machine shops that provide precise specimen preparation and fixture fabrication on all specimen configurations.To find out how we can help you meet your project requirements, contact an expert today.

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What is Creep Testing?

Creep is the time-dependent deformation of a material while under an applied load below its yield strength. Creep testing is most common at elevated temperature, but some materials will exhibit creep at room temperature. Unless stopped, creep testing terminates in rupture.

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What is Stress Rupture?

Stress rupture is the sudden and complete failure of a material under stress. During testing, the sample is held at a specific load level and temperature for a pre-determined amount of time. In stress rupture testing, loads may be applied by tensile bending, flexural, biaxial or hydrostatic methods.


Standards We Test To

American Society for Testing and Materials

ASTM C1291, ASTM C1337, ASTM D1654, ASTM D7337, ASTM E139, ASTM E292

British Standards

BS ISO 8013, BS 4A4-1, BS EN ISO 204

International Standards Organization

ISO 903

Military Standards



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