Stainless steel
Corrosion resistance: When the chromium content is ≥10.5%, a dense chromium oxide layer forms on the surface, effectively resisting corrosion from acids, alkalis, oxidation, and chlorides, making it suitable for highly corrosive environments.
High Strength and Toughness: Grades such as 304 and 316L, engineered through alloying, combine high tensile strength—reaching the 600 MPa range at room temperature—with excellent ductility, with elongation exceeding 50%, thereby meeting the demands of structural components for load-bearing capacity and deformation resistance.
Heat and cryogenic resistance: 310S stainless steel can withstand temperatures exceeding 1,000°C, while austenitic steels such as 304L maintain stable performance even at cryogenic temperatures of −196°C, making them suitable for extreme-temperature applications.
Processing characteristics expand the boundaries of applications.
Formability: It supports processes such as welding, bending, stamping, and deep drawing; 316L stainless steel can even be used for precision cold forming of smartphone frames.
Surface treatments—such as mirror polishing, electropolishing, and PVD coating—enhance both aesthetics and corrosion resistance, meeting the stringent hygiene requirements of food‑grade and medical‑grade equipment.
Common grades: SUS303, SUS304, SUS316L, 303F, 303Cu, 4Cr13, 2Cr13, 416, 430F, 420J2, 9Cr18Mo, 630
Steel mills: Japan’s Daido, Japan’s Nippon Steel, Huaxin Lihua, Yongxing, and Qingshan Steel.
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Stainless steel
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Product Description
Product Overview
Stainless steel is an iron-based alloy containing at least 10.5% chromium, offering six key advantages: corrosion resistance, high strength, excellent high-temperature performance, easy cleaning, aesthetic appeal and durability, and recyclability. It is widely used in machining, chemical piping, food‑ and pharmaceutical‑grade cleanroom applications, architectural decoration, marine environments exposed to seawater, as well as in kitchenware and bathroom fixtures—sectors that account for a significant share of China’s export market.
Mainstream Material Series (Most Commonly Selected for Export Markets)
201 Series (Economy Model, High Decorative Value)
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304 / 304L (a globally standard workhorse grade, food-grade) American Standard: AISI 304 (18-8) / 304L Low-Carbon Features: Resistant to atmospheric and freshwater corrosion, weldable with minimal intergranular corrosion, and safe for food contact. Applications: Clean pipelines, kitchenware, filter housing, food-processing machinery, and general sheet metal. Foreign trade keywords: Food Grade / Easy Clean / Weldable |
316 / 316L (marine and chemical industries, the top choice for high-end corrosion resistance)
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| 321 / 310S (high-temperature boiler exhaust pipe) 321: Resistance to intergranular corrosion at high temperatures; 310S: Heat resistance above 1100°C. Applications: exhaust pipes, furnace drums, high-temperature heat exchangers |
10 / 420 / 430 (martensitic-ferritic, hard and wear-resistant) High quench-hardness, excellent wear resistance, and strong magnetic attraction. Applications: cutting tools, valve spools, pivot pins, and wear-resistant fasteners. |
Common shapes and specifications (ready-to-ship for export & custom-made)
Sheet metal: Cold-rolled 2B/BA mirror finish / brushed finish; hot-rolled industrial sheet; slit and cut to length.
Coil stock: slit narrow strips, precision thin strips (for gasket stamping)
Round bars: black‑finished / bright‑polished / ground‑precision; commonly used for turned shaft components.
Pipes: seamless industrial pipes, welded decorative pipes, and sanitary-grade clean-welded pipes.
Structural profiles: angle steel / channel steel / I-beam
Surface finishes: 2B, No.1, brushed HL, 8K mirror finish, sandblasted with fingerprint resistance
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