JIS G3125 is a Japanese industrial standard for high-grade atmospheric corrosion-resistant rolled steel. This kind of steel has good resistance to atmospheric corrosion.
The chemical composition of JIS G3125 mainly includes the following elements and their corresponding content ranges:
Carbon (C): ≤0.12
Silicon (Si): 0.25
Manganese (Mn): 0.20
Phosphorus (P): 0.07
Sulfur (S): 0.01
Copper (Cu): 0.26
Chromium (Cr): 0.31
Nickel (Ni): 0.25
The production methods of JIS G3125 steel mainly include two basic processes: hot rolling and cold rolling.
Steel materials under the JIS G3125 standard, especially spa-c weather-resistant steel plates, have a series of remarkable characteristics.
1. Excellent atmospheric corrosion resistance. This kind of steel can resist the corrosion caused by rain, snow, ice, fog and other weather conditions.
2. Has good mechanical properties. Its yield strength is usually greater than or equal to 325 MPa, its tensile strength is greater than or equal to 450 MPa, and its elongation is also maintained at a high level, usually greater than or equal to 26%. These excellent mechanical properties enable JIS G3125 steel to maintain structural integrity and stability when subjected to various complex loads and stresses.
JIS G3125 has a very wide range of applications. It is mainly suitable for vehicles, buildings, towers and other structural parts. It is used in industries such as air preheaters, economizers, pidge construction, railway carriages, and container production.
