JIS G3101 SS400 standard and specifications for steel

JIS G3101 SS400 is a Japanese standard for hot-rolled steel plates, sheets, and strips for general structural usage. It specifies the chemical composition, mechanical properties, dimensions, and other requirements for SS400 steel. Here are some key specifications outlined in JIS G3101 SS400:

1. Chemical Composition:
- Carbon (C): 0.05% max
- Silicon (Si): 0.05% max
- Manganese (Mn): 0.40% max
- Phosphorus (P): 0.04% max
- Sulfur (S): 0.05% max

2. Mechanical Properties:
- Tensile Strength: 400 to 510 MPa
- Yield Strength: 245 MPa min
- Elongation: 21% min (in 200 mm), 23% min (in 50 mm)
- Brinell Hardness: 160 HB max

3. Dimensions and Weight Range:
- Thickness: 1.2 mm to 25.4 mm
- Width: 600 mm to 2000 mm
- Length: Coil or cut length up to 12000 mm
- Weight: Coils up to 25 tons, individual plates/sheets up to 20 tons

4. Heat Treatment: JIS G3101 SS400 does not require heat treatment as it is typically used in its as-rolled condition.

5. Applications: JIS G3101 SS400 steel is widely used in various structural applications, including buildings, bridges, ships, vehicles, machinery parts, and general fabrication.

6. Equivalent Standards: JIS G3101 SS400 steel has equivalent grades in other standards, such as ASTM A36 in the United States, DIN ST37-2 in Germany, and EN S235JR in Europe.

It's important to consult the full text of JIS G3101 SS400 for a comprehensive understanding of the standard, as it includes additional details on permissible tolerances, surface conditions, and testing methods.

Pre: Welding characteristics and techniques for SS400 steel

Next: Properties and applications of N155 nickel alloy