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The designation of stainless steel grades relies on two major systems: the traditional AISI (American Iron and Steel Institute) numbering system and the modern UNS (Unified Numbering System). While AISI designations remain widely used in commercial communication, UNS numbers dominate formal standards, material certificates, and engineering specifications.

It provides a clear, practical, and up-to-date overview of the latest China HS Codes for stainless steel flat products (Chapter 72, mainly 7219 and 7220). The article helps international buyers, procurement managers, and logistics teams quickly identify the correct HS code based on thickness, rolling method (hot-rolled or cold-rolled), width, and product form (coil or plate).

Carbon steel plates (non-alloy steel, flat-rolled) mainly fall under Chapter 72, heading 7208 (hot-rolled, width ≥ 600 mm, not clad, plated or coated).Below is a detailed English table of the most commonly used Chinese HS codes for carbon steel plates (cut-to-length / not in coils):

Stainless steel grades 316 and 316L are widely utilized austenitic alloys known for their excellent corrosion resistance, particularly in aggressive environments. While both share similar chemical compositions and mechanical properties, the primary distinction lies in their carbon content, which significantly impacts weldability and intergranular corrosion resistance.

JIS G4304 and GB/T 4237 are standards for hot-rolled stainless steel plates, sheets, and strips, but they differ in several aspects. Below is a concise comparison of their key differences, tailored to the context of SHH STEEL's 304/316 stainless steel plates, while keeping the response informative and within the requested scope.

Shanghai, September 12, 2025, 07:10 AM PDT – SHH STEEL, a steel fabrication expert, details key steel plate processing techniques—cutting, welding, and heat treatment—to guide buyers in optimizing material performance for construction, marine, and industrial applications.

Shanghai, September 12, 2025, 07:10 AM PDT – SHH STEEL, a steel industry leader, compares two widely used steel grades, ASTM A516 Gr.70 and EN 10028-2 P355GH, to guide buyers in selecting optimal materials for pressure vessels, boilers, and structural applications.

Shanghai, September 12, 2025, 07:10 AM PDT – SHH STEEL, a leading steel supplier, provides a technical comparison of global steel standards—ASTM (American), EN (European), JIS (Japanese), and GB (Chinese)—to assist buyers in selecting materials for construction, marine, and industrial applications.