Deep-Drawn 304 Stainless Steel Sheet Stamping Sink Quality Low Carbon Formability

This deep-drawn 304 stainless steel sheet is formulated for manufacturers who transform flat stock into complex three-dimensional parts such as kitchen sinks, cookware, basins and appliance panels. A deliberately low carbon content, combined with a fully annealed, fine equiaxed grain structure, gives the sheet the ductility it needs to stretch, bend and flow into deep cavities without splitting, wrinkling or orange-peel surface defects. The result is a forming grade that survives multi-station press operations at high production rates while preserving a clean, damage-free surface after drawing.

The material is cold rolled to precise gauge then bright annealed in a controlled atmosphere to dissolve carbides and restore maximum ductility. Elongation is maintained above 45% and hardness is kept below HRB 90, both indicators of exceptional formability. Grain size is held in the ASTM 7 to 9 range so that drawn parts keep a smooth, uniform appearance after deformation, an important consideration for visible sink and cooktop surfaces. A consistent, low-friction surface and tight thickness tolerance reduce die wear and tooling rejects, helping stamping lines achieve higher yield and fewer scrap parts per shift.

• Excellent Deep Drawability: Fine-grain, fully annealed structure allows severe draws into sink bowls and pots without cracking, wrinkling or surface rupture.
• Low Carbon Chemistry: Carbon held at or below 0.05% maximises ductility and reduces work hardening during multi-stage forming operations.
• Elongation of 45% or More: High elongation provides the stretch reserve needed for deep cavities, sharp radii and demanding cookware geometries.
• Fine Grain Structure: Controlled ASTM 7-9 grain size keeps drawn surfaces smooth and prevents orange-peel defects on visible finish areas.
• Low Hardness Under HRB 90: Soft, formable stock deforms predictably, lowering press tonnage requirements and extending die service life.
• Consistent Gauge and Flatness: Tight thickness control keeps clearances stable across the coil, improving part-to-part consistency on automated press lines.

This forming-grade sheet is the material of choice for kitchen sink and cookware factories, where it is drawn into bowls, basins and pot bodies across multi-station presses. Appliance manufacturers use it for refrigerator and dishwasher liners, oven fronts and decorative panels that need crisp forming with a flawless finish. Tableware producers rely on it for trays, kettles and utensils, while automotive trim makers form it into interior and under-hood components. Sanitary-ware, signage and elevator-panel fabricators also benefit from its combination of high elongation and pleasing surface, giving them the freedom to create deep, seamless shapes without expensive secondary operations.

Each sheet is coated with a peel-off PVC protective film to guard the surface through forming and handling, then interleaved and packed on fumigated wooden pallets with moisture-barrier wrapping. A mill test certificate documenting mechanical properties and grain size accompanies every shipment. Our technical team can recommend the optimum gauge, hardness and lubricant for your specific drawing depth, and can supply trial coils for press-line validation. Backed by substantial weekly capacity, we support continuous stamping operations with reliable, repeatable material.