Japan Hot Rolled Steel Sheet and Strip Steel Grade
In Japan, hot rolled steel sheet and strip is used for many types of steel products, including steel pipes, tracks and equipment, industrial boilers, construction, and other applications. Steel grades of Japanese hot rolled steel sheet and strip are of the SPHT-series, SPFH-series, SPFC-series, and other grades.
SPHT-series and SPFH-series are the standard grades used in Japan for hot rolled steel sheets and strips with thicknesses of 0.25mm to 2.00mm. These grades have improved mechanical properties, high formability, and good weldability. The SPHT-series also have excellent cold-workability, while the SPFH-series are good for rolling and cold-workability. The SPHT-series are designed for die-stamping and other processes.
The SPFC-series are higher grade hot rolled steels, designed for highly demanding applications that require high wear resistance. This series of hot rolled steel is usually used for crankshafts, gears, shafts and other components that require excellent strength and wear resistance. It also has very good formability.
Steel grades of Japanese hot rolled steel sheets and strips are typically specified using the same identification number system as other types of steel. The system for hot rolled steel sheets and strips uses a combination of an alphanumeric code with an additional number at the end.
The alphanumeric code can vary depending on the specific steel specification, and is composed of the following: S, P, H, T (SPHT), F, C (SPFC). It gives information about the origin and properties of the material. The additional number is used to distinguish between different steels of the same type.
For example, the Japanese hot rolled steel sheet and strip SS400 is an SPHT-series steel grade specified with a thickness of 0.25mm to 2.00mm. S indicates that the material is a structural steel. P indicates it is a carbon or low alloy steel. H indicates that the material is meant for hot-rolled use. T indicates that the material is of a higher grade than the standard SPHT-series steel.
In conclusion, Japanese hot rolled steel sheet and strip is widely used in a variety of applications, including automotives and construction materials. Many of these materials are specified by steel grade codes, which comprise of an alphanumeric code and an additional number at the end. These codes help to identify the origin and certain properties of the material. The SPHT-series and SPFC-series are the two main steel grades used in Japan for hot rolled steel sheet and strip, and both have a wide range of applications.
