What is the QSTE420TM steel?

QSTE420TM automotive structural steel description

Category: Cold-forming hot-rolled automotive structural steel plate

Material/brand: QSTE420TM

Executive standard: Q/BQB 310

Chemical composition (melting analysis)%

C: ≤0.12

Si: ≤0.35

Mn: ≤1.50

P: ≤0.03

S: ≤0.025

Ti: ≤0.22

Nb: ≤0.09

Al: ≥0.01

QSTE420TM steel is a fine-grained steel with good cold formability. It is used for automotive structural parts such as automobile beams and beams that require good cold forming properties and have higher or high strength requirements.

Our automobile hot-rolled steel sheet adopts a centralized rolling method, and strictly controls and manages the process parameters. The product surface is smooth, the steel sheet is flat and paintability is good, the product dimensional accuracy is high, and the market response is good.