Low Magnification Microstructure And Defect Acid Corrosion Detection Of Steel
Applicable materials: Suitable for various types of steel such as carbon structural steel, alloy structural steel, bearing steel, tool steel, spring steel, high-quality carbon steel, etc.
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Product Introduction

Scope of inspection
Applicable materials: Suitable for various types of steel such as carbon structural steel, alloy structural steel, bearing steel, tool steel, spring steel, high-quality carbon steel, etc.
Applicable products: including steel ingots, forgings, rolled materials, bars, plates, profiles, pipes, billets, and mechanical structural components.
Applicable states: including steel in different processing and heat treatment states such as hot rolling, forging, heat treatment, welding, etc.
Inspection purpose: Used for steel factory acceptance, incoming re inspection, production process verification, internal defect determination, and failure analysis.
Inspection Item
General looseness and central looseness assessment: detecting the internal pores and degree of density of steel.
Segregation defect detection: including center segregation, ingot segregation, point segregation, strip segregation, etc.
Shrinkage and residual shrinkage inspection: Determine the shrinkage defects of ingots and forgings.
Bubble and subcutaneous bubble detection: Check for internal and near surface porosity defects in steel.
Crack type defect assessment: including internal cracks, surface cracks, white spots, hairlines, etc.
Defect detection such as inclusions, sand inclusions, and peeling: Determine foreign inclusions and casting defects.
Observation of dendritic organization and streamline distribution: evaluation of forging and rolling deformation streamline and tissue uniformity.
Macroscopic low magnification organization overall evaluation: to determine whether the macroscopic quality of steel meets the standard requirements.

Inspection Specification
GB/T 226-2015 Acid corrosion inspection method for macrostructure and defects of steel
GB/T 1979-2001 Structural Steel Macroscopic Defect Rating Chart
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.















