News & Knowledge

The official website of Foshan Shunshengwang Stainless Steel Co., Ltd. is now online. It summarizes our product categories, processing services and workflow so customers can quickly see what we do and how we work — before asking for a quote.

We will keep publishing company updates and practical knowledge on stainless steel selection and processing. For material or processing inquiries, leave a message on the Contact page or reach us directly by phone or WeChat.

The difference between the three grades comes down to chemistry — nickel and molybdenum content drives the gap in corrosion resistance and price.

201: low nickel and the most economical; hardness and formability suit general uses, but corrosion resistance is limited. Best in dry indoor environments — interior panels and general hardware. Rust spots can appear in damp or outdoor settings.

304: the all-purpose grade — balanced corrosion resistance, formability and weldability. Food-grade scenes, kitchen and bath equipment, architectural decoration. For most "not sure which" cases, 304 is the safe answer.

316L: adds molybdenum to 304 for markedly better pitting and acid/alkali resistance, and the low-carbon L version resists intergranular corrosion after welding. The right choice for coastal areas, chemical equipment and medical devices — at the highest price.

Simple rule: 201 for dry indoors, 304 as the default, 316L for wet and corrosive environments. When in doubt, tell the supplier the operating environment and let experience decide.

Brushed (SB): abrasives draw a uniform linear grain — understated matte, fingerprint- and scratch-tolerant; the most common choice for elevator cabs and appliance panels. Lowest cost; keep grain direction consistent when bending later.

8K mirror: multi-stage polishing to a mirror reflection; strong decorative impact for hotels and commercial spaces. Shows fingerprints and scratches easily — film protection and precise cutting before installation are recommended.

Vacuum PVD (colored): titanium gold, rose gold and black coated in a vacuum furnace — even color, strong adhesion, fade-resistant; widely used for curtain walls and trim lines. Usually applied over brushed or mirror bases.

Etched / embossed: chemical etching for patterns or mechanical embossing for texture — added depth and character, often combined with PVD for bespoke facades. Higher minimums and tooling cost than the others; suits design-led projects.

How to choose: first decide matte or bright, then pick the process by budget and placement; combinations (brushed + PVD, mirror + etch) are richer and correspondingly pricier.

Cold and hot rolling are mill processes that directly determine thickness range, surface quality and price.

Hot-rolled coils: rolled at high temperature, typically 3.0 mm and thicker, with an oxidized industrial-grey surface. Good mechanical properties at a relatively low price — structural parts, flanges and thick-plate fabrication where surface matters less; often polished or pickled before use.

Cold-rolled coils: hot-rolled coils annealed, pickled and re-rolled at room temperature, typically 0.3 – 3.0 mm with a bright 2B surface and tighter dimensional accuracy — suited to stamping, bending and appearance-critical parts. Priced above hot-rolled for the same grade.

Simple rule: hot-rolled for thick structural work, cold-rolled for thin appearance parts. At the boundary thickness (around 3.0 mm), decide by surface requirement and cost.