Details about JIS G3101 SS400 Carbon and Low-alloy High-strength Steel Plate

Overview of JIS G3101 SS400 Carbon and Low-Alloy High-Strength Steel Plate

JIS G3101 SS400 is a Japanese standard for hot-rolled carbon structural steel plates used in general structural applications. It is known for its good weldability, tensile strength, and versatility, making it a popular choice in construction and manufacturing industries.

Chemical Composition and Mechanical Properties of SS400 Steel

Chemical Composition:

Element Percentage
Carbon (C) 0.17% max
Manganese (Mn) 1.40% max
Phosphorus (P) ≤0.050%
Sulfur (S) ≤0.050%
Silicon (Si) 0.40% max

Mechanical Properties:

Property Value
Yield Strength (min) 245 MPa (35,500 psi) for thickness ≤16 mm
Tensile Strength 400 – 510 MPa (58,000 – 74,000 psi)
Elongation in 8″ (min) 20% for thickness ≤16 mm

Applications and Industries Utilizing SS400 Steel Plates

SS400 steel is widely used across various industries due to its excellent mechanical properties:

  1. Construction: Used in building frames, bridges, and other infrastructure.
  2. Heavy Machinery: Structural components in machinery manufacturing.
  3. Automotive Industry: Parts such as chassis and frames.
  4. Shipbuilding: Structural applications in ship construction.
  5. General Fabrication: Used in various structural applications where moderate strength is required.

Corrosion Resistance and Performance Characteristics of SS400

  • Corrosion Resistance: While SS400 has moderate corrosion resistance, protective coatings are recommended for use in corrosive environments.
  • Performance Characteristics: Known for good toughness, ductility, and weldability, making it suitable for various structural applications.

Manufacturing Processes for JIS G3101 SS400 Steel Plates

SS400 steel plates are typically manufactured through the following processes:

  • Hot Rolling: The steel is rolled at high temperatures to achieve desired thicknesses.
  • Cold Rolling: Further processing may be done to improve surface finish.

Available Dimensions:

Thickness Range Width Range Length Range
6 mm – 120 mm Up to 2500 mm Up to 12000 mm

Welding and Fabrication Considerations for SS400 Steel

  • Weldability: Excellent weldability; can be welded using various methods such as MIG or TIG welding without preheating.
  • Post-Weld Treatment: Generally not required but can enhance mechanical properties depending on application requirements.

Comparison of JIS G3101 SS400 with Other Structural Steel Grades

Grade Yield Strength (MPa) Tensile Strength (MPa) Typical Applications
SS400 ≥245 400 – 510 General construction, heavy equipment
S235 ≥235 360 – 510 General structural applications
A36 ≥250 400 – 550 General construction applications

At HL Steel Company, we provide high-quality JIS G3101 SS400 carbon and low-alloy high-strength steel plates tailored for various industrial applications, ensuring optimal performance and reliability in demanding environments.

Share JIS G3101 SS400 Carbon and Low-alloy High-strength Steel Plate With Your Clients

Share to Facebook
Share to Twitter
Share to Linkedin

Contact Us

Jiangsu H&L Steel Trading Co.,Ltd.

121, Building 114, Jiangsu Street, Wuzhou International Industrial Expo City, Xinwu District, Wuxi City,Jiangsu Province,China

+86 181 1550 1268

Send Order Request

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix [email protected]