P390 Steel for Deep Drawing Parts and Home Appliances

What is P390 Drawing Steel? Core Definition and Properties

P390 is a grade of high-quality low-carbon cold-rolled deep-drawing steel sheet. Its designation generally indicates its specific rating and strength standard for deep-drawing applications. As an aluminum-killed steel, P390 achieves exceptional plastic deformation capability through strict control of carbon, silicon, manganese, sulfur, phosphorus and other elements, as well as optimized cold-rolling and annealing processes.

Core properties of P390 include:

Excellent deep-drawability: High plastic strain ratio (r-value) and elongation, enabling complex stretching and deformation without cracking.
Outstanding surface quality: High surface finish, free of scratches and scale, ideal for appliance panels with strict appearance requirements.
Tight thickness tolerance: Uniform thickness ensures dimensional accuracy and assembly stability during precision stamping.

Core Mechanical Properties and Chemical Composition

While retaining the good ductility of low-carbon steel, P390 balances strength and toughness through microalloying design. Typical properties are as follows: