High‑Strength, Low‑Alloy HRPO for Lightweight Vehicles
CNB supplies hot rolled pickled high‑strength low‑alloy (HSLA) steel coils specifically for the automotive and transportation industries. Grades like S500MC, S550MC, and QStE500TM provide weight reduction through thin‑gauge, high‑yield designs while maintaining good cold‑forming and welding characteristics.

Technical Advantages

• High Yield Strength: 500–650 MPa minimum yield, enabling down‑gauging from conventional S355.

• Superior Formability: Fine‑grain structure with micro‑alloying (Nb, Ti, V) ensures bendability and stretch‑flangeability.

• Clean Surface: Acid pickling removes all scale; oiling protects for up to 3 months in dry storage.

• Consistent Properties: Thermo‑mechanical controlled rolling delivers small property scatter coil‑to‑coil.

Typical Applications
Chassis longitudinal beams, cross members, suspension arms, wheel rims, commercial vehicle frame rails, and safety cage components.

Specifications

• Thickness: 2.0mm – 8.0mm

• Width: 1000mm – 1500mm

• Grades: S315MC, S355MC, S420MC, S460MC, S500MC, S550MC, S600MC

• Surface: Pickled and oiled