Debunking Common Stainless Steel Myths – Facts You Should Know

Myth 1: “Stainless Steel Never Rusts”

Reality: While highly corrosion-resistant, no stainless steel is completely rust-proof. Performance depends on:
✔ Grade Selection – 304 resists urban atmospheres but fails in coastal salt spray
✔ Environment – Chlorides, acids, or prolonged moisture cause pitting
✔ Maintenance – Regular cleaning prevents surface contamination

Ruilaibo Tip: Our 316L with 2.5% Mo outperforms standard 304 in marine applications by 3-5x lifespan.

Myth 2: “Magnetic = Fake Stainless”

Reality: Magnetism ≠ Quality. Critical factors:

  • Austenitic (304/316): Typically non-magnetic (cold-work may induce slight magnetism)

  • Ferritic (430) & Martensitic (410): Naturally magnetic

  • Duplex (2205): Partial magnetism

Ruilaibo Solution: We provide material test reports (MTC) with every shipment to verify composition.

Myth 3: “All Stainless Steels Are Equal”

Truth: The “best” stainless steel depends on application:

ApplicationOptimal GradeKey Advantage
Marine Hardware316LMo-enhanced chloride resistance
High-Temperature310SWithstands 1150°C continuous service
StructuralDuplex 22052x strength of 304, excellent stress corrosion resistance
Cost-Sensitive430Budget-friendly for indoor applications

Jiangsu Ruilaibo Special Steel Co., Ltd – Your Material Science Partner

We cut through industry myths with:

✅ Grade Selection Guidance – Match your environment to the perfect alloy
✅ Legitimate Material Certification – Third-party verified composition reports
✅ Performance Testing – Salt spray, intergranular corrosion, and mechanical tests available
✅ Custom Fabrication – Precision cutting, bending, and surface treatments

Featured Products:

  • Food-Grade 304/316L – Mirror polished to Ra≤0.4μm

  • Chemical-Processing 904L – Superior acid resistance

  • Architectural 443 – Chrome-aluminum stabilized for longevity

Don’t gamble with substandard materials!