The following are the core differences and selection suggestions between medical grade stainless steel and food grade stainless steel, combined with composition, standards, and application scenarios for comparative analysis:

1、 Differences in core components

Type Typical brand Chromium content Nickel content Molybdenum content Other characteristics

Medical stainless steel 316 16-18% 10-12% 2-3% high biocompatibility, resistant to chloride ion corrosion

Food grade stainless steel 304 18% 8-10% does not comply with GB 4806.9 food safety standards

Medical grade 316: Adding molybdenum element significantly improves corrosion resistance (such as antibody solution, disinfectant), suitable for medical implants and surgical instruments.

Food grade 304: lower cost, resistant to daily acid and alkali (such as coffee, juice), widely used in tableware and kitchenware.

2、 Performance comparison

316 Advantage: More stable performance in harsh medical environments such as high-temperature steam sterilization and chlorine containing disinfectants.

304 applicability: In daily household use, the difference in corrosion resistance between the two is minimal (such as a corrosion rate difference of only 0.1% when in contact with fruit juice).

3、 Application scenario selection

Medical field

316 stainless steel must be used (such as surgical instruments and implants) and must pass biocompatibility testing (ISO 10993 standard).

Food contact

304 stainless steel (such as insulated cups and cookware) needs to pass the GB 4806.9 heavy metal migration test to ensure that no harmful substances are released.

Beware of 201 stainless steel impersonating 304 (high manganese content, easy to precipitate heavy metals).

4、 Purchase suggestions

Daily life at home: 304 stainless steel has a higher cost-effectiveness, while 316 has limited improvement (unless allergic to nickel).

Special requirements: 316 is preferred for medical or laboratory environments, and attention should be paid to confirming the overall material (not just the inner liner).

Note: Some merchants confuse "304" with "food grade" and need to identify the testing report accurately.

Note: The above is for reference only!

Xingchen Riyue is a professional manufacturer (customizable) of stainless steel products and accessories for industries such as pharmaceuticals, food, chemicals, machinery, and healthcare, specializing in the supply of stainless steel utensils for cleanrooms. In the process of producing stainless steel series products, our company adopts modern production equipment, good processing technology, and adheres to the principles of good quality, reasonable price, and timely delivery. With enthusiastic service, we have gained recognition from our customers. Tianjin Xingchen Sun and Moon, your trusted partner.