OEM Supplier High Quality 300 Series 304L Cold Rolled Stainless Steel Sheet 1.5mm 1.6mm 3mm 4mm Thickness

Grade: 304L Low Carbon Austenitic Stainless Steel (300 Series Premium Weldable Grade)

Available Thickness: 1.5mm / 1.6mm / 3mm / 4mm versatile in-stock specifications

Production Craft: Precision cold rolled with ultra-flat base, tight dimensional tolerance

Surface Finish: Standard 2B smooth mill finish, uniform texture, no surface defects

Core Advantage: Ultra-low carbon formula eliminates welding intergranular corrosion, excellent ductility & post-weld stability

Service Mode: Professional OEM customized fabrication, size cutting, bending, stamping & batch wholesale

Application Orientation: Customized for welding-intensive equipment, sanitary facilities, chemical accessories and long-service industrial projects

304L cold rolled stainless steel sheet is a specialized low-carbon upgrade of conventional 304 steel, widely recognized as the preferred weldable stainless steel in the 300 series. Different from high-carbon 302 steel which focuses on cold-hardening strength and wear resistance, 304L features an ultra-low carbon content below 0.03%, fundamentally restraining chromium carbide precipitation during welding and high-temperature processing. This unique property effectively avoids weld seam rusting, embrittlement and intergranular corrosion, delivering far more stable performance in frequently welded structural parts. We supply four practical mainstream thicknesses including 1.5mm, 1.6mm, 3mm and 4mm, covering thin precision parts and medium-thick structural components. Adopting advanced cold rolling technology, each sheet boasts ultra-high flatness, smooth surface and consistent internal metallographic structure, perfectly adapting to various OEM customized deep processing requirements.

The whole production process strictly follows international manufacturing standards, implementing refined raw material screening, precision cold rolling, stress relief annealing, surface fine finishing and strict dimensional calibration. Different from ordinary industrial steel plates, 304L undergoes professional low-carbon smelting and annealing treatment, which greatly optimizes material ductility and welding performance. It requires no secondary solution heat treatment after welding, simplifying processing procedures and reducing production costs for manufacturers. The cold-rolled base maintains excellent surface smoothness and flatness, free from burrs, warping and uneven texture. Whether for fine stamping, complex bending or full welding forming, 304L sheets can maintain complete structural integrity and stable corrosion resistance.

Compared with 302 high-strength steel, 304L sacrifices partial cold-work hardening performance in exchange for superior welding stability and long-term corrosion resistance, making it irreplaceable for equipment parts that require frequent welding and long-term outdoor/chemical environment operation. The multi-thickness design realizes full-scene coverage: 1.5mm and 1.6mm thin sheets suit precision thin-wall shell parts and lightweight decorative components, while 3mm and 4mm medium-thick sheets meet structural load-bearing and anti-deformation demands of industrial equipment.

This series of 304L cold rolled sheets is tailored for OEM mass production and customized engineering projects, with strong scene compatibility. It is widely used in food and pharmaceutical sanitary equipment, where non-toxic, rust-free and stable welding performance is strictly required. In chemical and environmental protection industries, it serves as corrosion-resistant casings, pipeline accessories and reaction equipment panels, resisting weak acid and alkali medium erosion. It also works perfectly for municipal engineering facilities, outdoor public structural parts and building welding assembly components. In addition, it is the ideal material for stainless steel hardware finished products, mechanical welding parts and long-cycle service industrial accessories.

304L stainless steel has outstanding processing adaptability, suitable for various cold working and thermal processing. Its excellent ductility ensures no cracking or deformation during stamping, bending and deep drawing. The ultra-low carbon characteristic guarantees no post-weld corrosion failure, greatly extending the service life of welded components. For daily maintenance, the smooth 2B surface only needs simple wiping with neutral detergent to keep clean and bright. Stored in dry and ventilated environment, the sheet can maintain stable mechanical properties and anti-rust performance for a long time, with extremely low later maintenance cost.

First of all, the exclusive low-carbon 304L formula solves the industry pain point of welding corrosion, realizing permanent anti-rust performance of welded joints, which is incomparable to 302 and ordinary 304 steel. Secondly, four mature thickness specifications cover diversified processing needs, supporting one-stop OEM customization from size cutting to finished product fabrication. Thirdly, precision cold rolling craft ensures high flatness and precise tolerance, effectively reducing material loss during secondary processing. Moreover, the material features balanced comprehensive performance, combining corrosion resistance, processability and environmental safety, compliant with global industrial and sanitary standards. Finally, as a direct factory OEM supplier, we support small batch trial orders and large batch bulk orders with stable delivery cycle and competitive wholesale cost performance.

For custom processing drawings, material test reports and latest wholesale prices, please feel free to contact us.