Detection Of Cross-sectional Shrinkage Rate
Applicable materials: Suitable for various metal materials and welding joints such as carbon steel, alloy steel, stainless steel, high-temperature alloys, aluminum alloys, copper alloys, titanium alloys, nickel based alloys, etc.
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Product Introduction
Detection range
Applicable materials: Suitable for various metal materials and welding joints such as carbon steel, alloy steel, stainless steel, high-temperature alloys, aluminum alloys, copper alloys, titanium alloys, nickel based alloys, etc.
Applicable objects: including plates, bars, pipes, profiles, forgings, castings, standard tensile specimens, structural components, and fasteners.
Applicable scenarios: Used for raw material plasticity evaluation, tensile testing matching inspection, welding process evaluation, heat treatment quality verification, product mechanical performance acceptance, and failure analysis.
Testing items
Measurement of cross-sectional shrinkage rate (Z): Measure the original cross-sectional area of the specimen and the minimum cross-sectional area after fracture to calculate the cross-sectional shrinkage rate.
Room temperature and high temperature tensile section shrinkage testing.
Measurement of cross-sectional shrinkage rate of welded joints.
Combined assessment of material plasticity level with elongation at break.
Qualification assessment of cross-sectional shrinkage index.
Testing standards
GB/T 228.1-2021 Tensile Testing of Metallic Materials Part 1: Room Temperature Test Method
GB/T 4338-2023 High temperature tensile test method for metallic materials
GB/T 2651-2024 Tensile test method for welded joints
GB/T 2975-2018 Steel and Steel Products Mechanical Property Testing Sampling Location and Sample Preparation
was established in 2011. As a national high-tech enterprise recognized by the Zhejiang Provincial Higher People's Court as a judicial authentication institution for construction engineering quality, we specialize in structural performance testing and safety assessment of construction projects, special equipment, communication towers, electromagnetic environments, large bridges, and building safety appraisal.
The company has more than 100 professional and technical personnel, over 90% of whom hold various medium and senior technical certificates. Equipped with complete testing equipment worth over RMB 10 million, our business scope covers the whole country.
