The Indian government upgraded its steel quality control system, requiring all steel products subject to the Quality Control Order (QCO) to be certified by the Bureau of Indian Standards (BIS).
SS304 is the most common used grade for zippers and closures. SS301 & 316 are also required for special use that need more strength or corrosion resistance.
In chemical production facilities, stainless steel 316 has steadily emerged as the go-to material for manufacturing chemical packing.
The cold-rolled stainless steel coils have moderate hardness and strength, which can ensure that the tool does not deform or crack when scraping cement, while retaining a certain toughness.
304 stainless steel is a general-purpose austenitic stainless steel containing 18% chromium and 8% nickel; 316L is an ultra-low carbon austenitic stainless steel with 2%-3% molybdenum added to 304.
Stainless steel 304 is an austenitic stainless steel containing 18% chromium (Cr) and 8% nickel (Ni), so it is also known as "18/8 stainless steel".
