MANUFACTURING / FABRICATION

IT’S ALL ABOUT ENSURING QUALITY PRODUCTS

Since 2001, Zhejiang Guojian Testing Technology Co., Ltd (CCT) has been a top provider of metal testing and analysis in China. As an accredited and independent laboratory, we specialize in material testing services for manufacturing and fabrication industries. Our team of skilled engineers, chemists, and technicians are highly regarded for their technical proficiency, timely service, and precise test results.

TESTING FOR ALL STEPS OF OPERATION

At Zhejiang Guojian Testing Technology Co., Ltd (CCT) , we offer comprehensive metal testing and analysis services that support your entire product development cycle, from research to manufacturing, assembly, and quality control. If a metal material or process fails to meet your expectations, our team of engineers can conduct a failure investigation to determine the underlying cause of the issue. 

We provide a broad range of testing services to support your fabricating and manufacturing needs, including:

· Material identification

· Material selection

· Performance evaluation

· Conformance certification

· Process verification

· Failure analysis

THERE’S CALIBRATION TOO

Calibration of equipment is a crucial part of maintaining quality control in manufacturing and fabrication. It is important to regularly verify the accuracy of measuring tools, gages, torque wrenches, surface plates, and other instruments used in production or assembly to ensure that a high-quality product is being produced. 

Zhejiang Guojian Testing Technology Co., Ltd (CCT) 's calibration lab provides a convenient solution for this need. Our lab, which is environmentally controlled, offers a full range of calibration services. We can also perform calibration services on-site at your facility if it is located within a 100-mile radius of Zhejiang Guojian Testing Technology Co., Ltd (CCT) .

MEETING ALL YOUR NEEDS

Zhejiang Guojian Testing Technology Co., Ltd (CCT) is committed to providing metal testing and calibration services that meet your needs. Whether you require these services for regulatory compliance, to meet industry standards or for your own quality assurance, we are dedicated to delivering accurate and timely results at competitive prices.

We understand that convenience is key, which is why our chemistry, mechanical testing, metallography and nondestructive testing labs are all located at one site. Our complete machine shop is also available to prepare test specimens to your exact specifications. 

Choose Zhejiang Guojian Testing Technology Co., Ltd (CCT) for all your metal testing and calibration needs, and rest assured that we will provide you with reliable results and exceptional customer service.

FULL-SERVICE METAL TESTING LAB

CHEMICAL ANALYSIS

· Positive Material Identification (PMI)

· Spectroscopy (ICP-AES, ICP-MS, AES)

· EDS Analysis

· Fouier Transform Infrared Spectroscopy (FTIR)

· Carbon / Sulfur / Nitrogen / Oxygen / Hydrogen Determination

· Wet Chemistry

CORROSION TESTING

· ASTM A262 Practice A, B, C, D, E

· ASTM G28 Methods A & B

· ASTM G48 Methods A & B

· ASTM A923 Method C

· Salt Spray / Salt Fog

· Humidity Testing

· Passivation Testing

· Temperature Testing

MECHANICAL TESTING

· Tensile Testing

· Charpy Impact Testing

· Drop Weight Test

· Hardness Testing

· Hydrogen Embrittlement

· Weld Testing

FATIGUE AND FRACTUR

· Fracture Toughness Testing

· Fatigue Crack Growth Testing

· Low-cycle and High-cycle Fatigue Testing

METALLURGICAL ANALYSIS

· Microstructure

· Microhardness (Knoop & Vickers)

· Grain Size (ASTM E112)

· Inclusion Rating (ASTM E45)

· Plating Thickness

· Carbide Precipitation

· Ferrite by Point Count (ASTM E562)

· Intergranular Attack / Oxidation

· Intergranular Corrosion (ASTM A262)

· Sensitization

· Surface Contamination

· Nodularity / Nodule Count

· Eutectic Melting