comparison

SUS304 vs SUS316: How to Choose Between the Two Most Common Stainless Grades

SUS304 vs SUS316: Mo addition raises PREN from 20 to 25 and costs 30–50% more. Full comparison of corrosion resistance, strength, weldability, and a clear decision framework.

2026.06.23

stainless steel

SUS304 vs SUS430: Austenitic vs Ferritic Stainless — Corrosion, Cost, and Formability

SUS304 vs SUS430: ferritic SUS430 is ~30% cheaper and magnetic but has lower corrosion resistance and formability. Full comparison with environment-based selection guide.

2026.06.22

stainless steel

Galvanized vs Galvannealed vs Galvalume vs Pre-Painted: Which Coated Steel for Which Use

Four coated flat steel products — SGCC (galvanized), SGCC-ZF (galvannealed), SZACC (Galvalume), and CGCC (pre-painted) — protect steel through different mechanisms and suit different applications. Full comparison with corrosion life, cost, and application selection guide.

2026.06.09

steel

SPCC vs SPHC: Cold-Rolled vs Hot-Rolled Steel Sheet — How to Choose

SPCC (cold-rolled, JIS G3141) and SPHC (hot-rolled, JIS G3131) cover different thickness ranges and deliver different surfaces, tolerances, and mechanical property guarantees. Full comparison with decision guide for stamping, welded frames, and laser-cut parts.

2026.06.08

steel

SCM435 vs SCM440: How to Choose the Right Cr-Mo Grade for Your Application

SCM435 vs SCM440: carbon content is the only difference, but it determines temper window, surface hardness, and global availability. Full comparison with decision guide.

2026.05.11

steel