Industry News

In the industrial manufacturing sector, Q235 cold rolled steel sheet acts as a universal base raw material. It is widely used across auto spare parts, agricultural machinery hardware, stamping fabrication and many other product lines.

Over the past two months, the domestic steel market has exhibited a structural divergence characterized by "intense competition in mass-market products under pressure and strong demand for high-end special steels," vividly demonstrating that China's steel industry has completely moved beyond the era of relying solely on production expansion and low-price competition for scale, and has fully entered a new phase focused on quality dividends driven by high-quality customized steel products and technical support services. The article addresses the core challenges faced by purchasers of engineering, machinery, and export-oriented steel products, providing an objective overview of the industry's thriving transformation and upgrading process.

The weldability of steel primarily depends on its chemical composition. Among these components, carbon has the greatest impact, meaning that the amount of carbon in the metal determines its weldability.

To meet the dual demands of vehicle lightweight design and driving safety, mild steel plates are evolving toward higher tensile strength. Conventional low-carbon mild steel can no longer satisfy the structural requirements of high-strength vehicle bodies.

Key mechanical indicators of mild steel plate cover tensile strength, yield strength, percentage elongation after fracture, plastic strain ratio and strain hardening exponent. Conventional low carbon steel plate delivers tensile strength ranging from 270MPa to 410MPa, paired with yield strength between 140MPa and 280MPa.

Parts that make up a car body can be roughly sorted into four categories: outer panel parts, structural parts, chassis running parts and reinforcement parts. Each category serves distinct functional demands and requires unique mechanical properties.