FASTENER TESTING

CATCH PROBLEMS BEFORE THEY COST YOU

Zhejiang Guojian Testing Technology Co., Ltd (CCT) provides comprehensive testing, dimensional inspection and failure analysis services for fasteners to help ensure the smooth operation of your business. By identifying and addressing weaknesses or defects in raw materials or finished products, you can prevent costly problems from arising.

We have extensive experience in testing all types of metal fasteners, and our team of highly trained professionals are experts in materials engineering, metallurgy, chemistry, materials testing and metrology. All of our fastener testing services are accredited and conducted in compliance with industry standards such as CMA, ISO, ASTM and CNAS.

FASTENER TESTING SERVICES

METALLURGICAL TESTING

A wide-range of microstructure and macrostructure examinations are performed including:

· Grain Size

· Carburization / Dearburization

· Plating Thickness

· Surface Contamination

· Alpha Case

· Thread Examination

· Microstructure

· Macro-etch

· Grain Flow

· Microhardness

Root Cause Failure Analysis is also offered.

MECHANICAL TESTING

Zhejiang Guojian Testing Technology Co., Ltd (CCT)  can determine the mechanical properties of your materials such as fastener tensile strength, hardness, load capacity and more.

Equipment is available to test fasteners of all sizes .

CHEMICAL ANALYSIS

A variety of chemistry services are provided for analyzing elements and impurities, revealing material composition and identifying materials.

· ICP Spectrometry (ICP-AES, ICP-MS)

· AES Analysis

· FTIR Analysis

· Carbon / Sulfur / Nitrogen / Oxygen / Hydrogen Determination

· Positive Material Identification (PMI)

SALT SPRAY TESTING

We can verify the corrosion resistance of coatings on your fasteners.

NONDESTRUCTIVE TESTING

We will identify surface-breaking discontinuities without damaging your fasteners.

· Magnetic Particle Inspection

· Liquid Penetrant Testing

· Ultrasonic Testing

· X-ray Inspection (Radiography)

DIMENSIONAL INSPECTION

Dimensional inspection is performed in accordance with NAS, MS and ANSI specifications on fastener features, including:

· Internal threads

· External threads

Inspectors in our division called Zhejiang Guojian Testing Technology Co., Ltd (CCT)  Metrology use CMM, Smartscope and optical inspection methods.

FAILURE ANALYSIS

At Zhejiang Guojian Testing Technology Co., Ltd (CCT) , our materials engineers conduct in-depth investigations to identify the underlying causes of failed fasteners. The findings of our analysis are documented in a Failure Analysis Report, which includes all the necessary details and results of the investigation. This report is intended to provide you with a comprehensive understanding of the cause of the failure, as well as recommendations for corrective measures to prevent future failures.

ADDITIONAL SERVICES

At Zhejiang Guojian Testing Technology Co., Ltd (CCT) , we understand that our clients' needs go beyond just testing and inspection services. That's why we offer additional services to simplify their processes and save them time. For example, we have an in-house Machine Shop that can prepare any specimens required for testing. We also have a calibration division, Zhejiang Guojian Testing Technology Co., Ltd (CCT) Metrology, that can certify the measurement accuracy of various measuring tools, such as gages, torque wrenches, masters, furnaces, and surface plates. With our comprehensive suite of services, we strive to provide our clients with a convenient one-stop-shop for all their testing and measurement needs.

Request a Quote for quick, reliable fastener testing services.