Q195 cold-rolled sheet is a low-carbon steel product manufactured through the cold rolling process

Q195 cold-rolled sheet is a low-carbon steel product manufactured through the cold rolling process. It is characterized by its excellent surface finish, precise thickness tolerance, and good mechanical properties. The "Q" in Q195 stands for yield strength, and "195" indicates the minimum yield strength of 195 MPa.

 

INTRODUCTION

 

Q195 cold-rolled sheet is a low-carbon steel product manufactured through the cold rolling process. It is characterized by its excellent surface finish, precise thickness tolerance, and good mechanical properties. The "Q" in Q195 stands for yield strength, and "195" indicates the minimum yield strength of 195 MPa. This material is widely used in industries requiring high precision and surface quality.

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APPLICATION

 

Q195 cold-rolled sheets are versatile and used in various industries, including:

 

Automotive Industry: Manufacturing body panels, chassis components, and structural parts.

 

Construction: Used for roofing, wall cladding, and lightweight structural components.

 

Household Appliances: Production of washing machines, refrigerators, and air conditioners.

 

Furniture: Used in the manufacturing of metal furniture, cabinets, and shelves.

 

Electronics: Enclosures and casings for electronic devices.

 

General Engineering: Components requiring high precision and smooth surfaces.

 

ADVANTAGES

 

Surface Quality: Cold rolling provides a smooth and shiny surface, ideal for painting or coating.

 

Dimensional Accuracy: Tight thickness tolerances ensure uniformity and precision.

 

Strength and Formability: Balances strength with good formability, making it easy to shape and fabricate.

 

Cost-Effective: Low-carbon steel is economical compared to higher-grade steels.

 

Lightweight: Suitable for applications where weight reduction is critical.

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TREND AND PROSPECT

 

Sustainability: Increasing demand for eco-friendly and recyclable materials in manufacturing.

 

Advanced Coatings: Development of anti-corrosion and wear-resistant coatings to enhance durability.

 

Automation and Precision: Growing use in automated manufacturing processes requiring high precision.

 

Emerging Markets: Expansion in developing economies for construction and automotive applications.

 

Technological Advancements: Improved cold-rolling techniques for better performance and cost efficiency.

 

INSPECTION STANDARD

 

Q195 cold-rolled sheets are tested according to international and national standards to ensure quality and performance. Key standards include:

 

GB/T 700-2006 (China): Standard for carbon structural steels, including Q195.

 

ASTM A1008 (USA): Standard specification for cold-rolled carbon steel sheets.

 

ISO 3574 (International): Standard for cold-reduced carbon steel sheets.

 

JIS G3141 (Japan): Standard for cold-rolled mild steel sheets and strips.

 

Common Tests:

 

Tensile Test: Measures yield strength, tensile strength, and elongation.

 

Hardness Test: Evaluates material hardness (e.g., Rockwell or Vickers).

 

Surface Inspection: Checks for surface defects like scratches, pits, or cracks.

 

Dimensional Tolerance: Ensures thickness, width, and length meet specifications.

Bend Test: Assesses formability and ductility.