What Is SPHC Steel?
SPHC stands for steel plate hot commercial, and describes a type of hot-rolled steel plate. Produced by heating slabs and rolling them in a rolling mill, SPHC steel falls under the general-purpose steel category. Its main characteristic is its softness and resistance to work hardening, making it suitable for bending and deep drawing applications. However, SPHC steel doesn’t come with specific strength standards or guarantees, and its regular form is prone to rust. Its black finish is the result of an oxide film formed during hot rolling does provide some corrosion resistance.
Uses of SPHC Steel
As a general-purpose steel, SPHC is economical and widely used for producing large parts such as automobile bodies and electrical equipment enclosures. Its black finish makes it more suitable for internal or non-visible components. For exterior use, SPHC often undergoes acid pickling and surface treatments like plating or painting to improve its appearance and corrosion resistance. Its cost efficiency and excellent formability make it a popular choice in various industries where these qualities are prioritized.