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JIS G 3141 Cold-reduced Carbon Steel Sheets And Strips

JIS G 3141 Cold-reduced Carbon Steel Sheets And Strips are a type of steel product that has been cold-rolled to reduce its thickness and improve its mechanical properties. These sheets and strips are made from carbon steel and are commonly used in a variety of applications, including automotive, construction, and electrical industries. They are known for their excellent formability, weldability, and corrosion resistance. The JIS G 3141 standard specifies the chemical composition, mechanical properties, and dimensional tolerances of these cold-reduced carbon steel sheets and strips.
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JIS G 3141 Cold-reduced Carbon Steel Sheets and Strips is a Japanese industrial standard for cold-rolled carbon steel sheets and strips. The standard covers a wide range of grades, dimensions, and properties to suit various applications. Here are some commonly used grades, product advantages, and primary uses:

Commonly used grades:

  1. SPCC (Standard Plain Carbon Steel Cold-rolled) - The most common grade used for general-purpose applications. It has good formability, weldability, and is easily machined.

  2. SPCD (Standard Plain Carbon Steel Deep Drawing) - This grade has higher strength than SPCC and is used for deep-drawing applications, such as automotive parts and home appliances.

  3. SPCE (Standard Plain Carbon Steel Extra Deep Drawing) - This grade has even higher strength and formability than SPCD, making it suitable for complex, deep-drawing applications.

Product advantages:

  1. Excellent formability - Cold-reduced carbon steel sheets and strips can be easily formed into complex shapes without cracking or breaking.

  2. High strength-to-weight ratio - These materials provide good strength while maintaining a lightweight construction, making them ideal for weight-sensitive applications.

  3. Good weldability - Cold-rolled carbon steels can be easily welded using various welding methods, making them suitable for fabricating structures and assemblies.

  4. Good corrosion resistance - The steel sheets and strips can be coated with various protective layers to improve their corrosion resistance, extending their service life.

Primary uses:

  1. Automotive industry - Cold-reduced carbon steel sheets and strips are widely used in the automotive industry for manufacturing body panels, doors, hoods, and other exterior parts.

  2. Home appliances - They are used in the production of home appliances such as refrigerators, washing machines, and air conditioners.

  3. Construction - Cold-rolled carbon steel sheets and strips are used in construction for making roofing, siding, and other building materials.

  4. Furniture - These materials are also used in the manufacturing of furniture, especially for frames and supports.

In summary, JIS G 3141 Cold-reduced Carbon Steel Sheets and Strips offer a range of grades with different properties to suit various applications, providing excellent formability, high strength-to-weight ratio, good weldability, and good corrosion resistance.


Chemical Component
Grade\ChemicalCMnPS
SPCC0.15Max0.60Max0.100Max0.050Max
SPCD0.12Max0.50Max0.040Max0.040Max
SPCE0.10Max0.45Max0.030Max0.030Max
SPCF0.08Max0.45Max0.030Max0.030Max
SPCG0.02Max0.25Max0.020Max0.020Max


1/8 hard
MIN50HRB
MAX71HRB
1/4 hard
MIN65HRB
MAX80HRB
1/2 hard
MIN74HRB
MAX89HRB
1-Full hard
MIN85HRB

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