Creep& Stress Rupture

Item No.: 00140



At Zhejiang Guojian Testing Technology Co., Ltd (CCT) , we offer dependable and convenient stress rupture testing and creep testing services for metallic materials. These tests are crucial in assessing the impact of long-term stress on materials and preventing failures.

During a stress rupture test, a metal specimen is subjected to a constant load at a specific temperature until it fails. Meanwhile, a creep test (also known as a creep rupture test) shows the deformation in a metallic material under a constant load over an extended period, typically at elevated temperatures.


Zhejiang Guojian Testing Technology Co., Ltd (CCT) 's stress rupture and creep testing services are accredited by Nadcap and CNAS ISO/IEC 17025 and conform to ASTM standards, ensuring the highest level of quality. Our on-premises machine shop produces top-notch specimens, which facilitates a speedy turnaround time for test results.

The laboratory, situated in China, is outfitted with state-of-the-art automated machinery that can conduct tests at temperatures as high as 1100℃. These machines utilize calibrated thermocouples that are affixed to the test specimens, ensuring dependable temperature control. The load is automatically adjusted at predetermined intervals to maximize efficiency. 

Moreover, Zhejiang Guojian Testing Technology Co., Ltd (CCT) 's stress rupture and creep test systems comply with ISO 9000 and ASTM regulations.


· ASTM E139

· ASTM E292

· NASM-1312-10

Ask us to provide a fast quote for your test specifications.


Typically, creep and stress rupture testing services involve subjecting test specimens to elevated temperatures, sometimes exceeding 1000 degrees Celsius. To achieve this, machines are specially designed to apply a static stress to the specimen at a predetermined temperature. The test generates a graph of stress versus time, which is used to analyze the specimen's behavior.


Stress rupture testing involves subjecting a material to a constant load at a specific temperature to determine the time required for failure to occur. This test assesses the material's long-term load-bearing properties in relation to temperature and measures the time to rupture. The outcomes of stress rupture testing are particularly valuable when selecting materials for applications where dimensional tolerances are not crucial, but failure is unacceptable. 

Stress rupture testing is comparable to creep testing, but it involves higher stresses. Both tests measure the material's behavior when subjected to a constant load and elevated temperatures, but stress rupture testing focuses on shorter test periods at higher stress levels.


Creep testing is a time-dependent process that evaluates the dimensional changes of a specimen due to high temperatures when a constant stress or load, below its yield strength, is applied. An extensometer is used to measure the elongation or deformation of the specimen, which allows for predicting how a component or part will alter in shape during service. This information is particularly important for designing components that will be used in high-temperature environments where dimensional stability is critical. 

Creep testing is useful for determining the rate at which a component or part will deform at a given load and temperature. By extrapolating this data, we can estimate the time-to-failure for longer periods. This enables us to design components with greater confidence, ensuring they will not fail under sustained loads over extended periods of time.

TEST SPECIMENS MACHINED AT Zhejiang Guojian Testing Technology Co., Ltd (CCT)

At Zhejiang Guojian Testing Technology Co., Ltd (CCT) , our fully-capable in-house Machine Shop prepares precision specimens in all possible configurations. When conducting stress rupture and creep testing, a test specimen is machined from a sample of the metal material, following specific guidelines that are typically outlined in a specification.

A range of test specimens is needed for stress rupture and creep testing, including smooth, notched, combination smooth & notched, and flat specimens. Our Machine Shop is well-equipped to create all necessary configurations, ensuring accurate and precise results.

Zhejiang Guojian Testing Technology Co., Ltd (CCT)  CAPABILITIES

· Temperatures – up to 1100

· Standards – comply with ASTM standards E139, E292, and NASM-1312-10

· Materials Tested – metals

· Test Specimens – Zhejiang Guojian Testing Technology Co., Ltd (CCT) ’s Machine Shop can provide smooth, notched, combination smooth & notched and flat stress rupture test and creep test specimens

Q: What does your company do?
A: We have been focusing on the inspection of parts and Metallic materials for more than 20 years.

Q: What is the price of testing?
A: The specific cost should be quoted according to your sample quantity, test items and test standards. It is convenient for you to leave your contact information, and I will ask the engineer in charge of this field to make a quotation for you.

Q: Where is your company?
A: Our headquarter is in Zhejiang,China, and we have offices all over the country.
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