1. Material standards: Stainless steel coils must comply with relevant U.S. and international material standards, such as ASTM (American Society for Testing and Materials) standards. Commonly used stainless steel grades such as 304 and 316 need to comply with the chemical composition and mechanical properties of these standards.

2. Corrosion resistance: Since kitchenware is often in contact with food and moisture, stainless steel coils need to have good corrosion resistance to resist corrosion and oxidation in daily use. This usually requires that the stainless steel contains enough elements such as chromium (Cr) and nickel (Ni).

3. Mechanical properties: Stainless steel coils need to have sufficient strength, ductility and toughness to adapt to the cutting, bending, forming and welding processing requirements in the kitchenware manufacturing process. In addition, good impact toughness and fatigue resistance are also required.

4. Surface quality: The surface quality of kitchenware directly affects its aesthetics and usability, so the surface of the stainless steel roll must be smooth, flawless, free of scale and other contaminants. Polishing, pickling or other surface treatments may be required to meet surface quality requirements.

5. Hygienic standards: Since kitchen utensils are in direct contact with food, stainless steel coils must comply with the hygienic standards for food contact materials in the United States, such as the relevant regulations of the FDA (U.S. Food and Drug Administration), to ensure that the materials are safe for food.

6. Dimensions and tolerances: Dimensions such as thickness, width, and length of stainless steel coils must be accurate and meet tolerance requirements to ensure accurate cutting and shaping during the manufacturing process.

7. Environmental standards: The production and processing of stainless steel need to comply with U.S. environmental regulations, especially standards regarding hazardous substance restrictions and emission control.

8. Inspection and certification: Stainless steel coils need to be tested and certified by a third-party inspection agency to prove that they meet the above standards and requirements. This may include chemical composition analysis, mechanical property testing, corrosion resistance testing, non-destructive testing, etc.

9. Packaging and marking: Stainless steel coils need to be properly packaged to prevent damage during transportation, and must be clearly marked, including material grade, size, batch number, production date and other information.

10. Contract and regulatory compliance: The export of stainless steel coils also needs to comply with relevant U.S. import and export regulations, including contract terms, tariff regulations, license requirements, etc.

In summary, stainless steel coils shipped to the United States for kitchenware manufacturing need to meet a stringent set of requirements and standards to ensure their quality, performance and safety. Manufacturers need to carefully evaluate these requirements and take the necessary steps during production to meet these standards.