904L is a copper-containing, high-nickel, molybdenum super austenitic stainless steel. Its implementation standards include ASTM A240/A240M (American standard) and EN 10088-2:2005 (European standard). The corresponding national standard is 015Cr21Ni26Mo5Cu2. It far exceeds conventional stainless steels such as 316L and is an ideal material for harsh chemical environments.

STS316L is an ultra-low carbon austenitic stainless steel in the Korean standard (KS D 3503), equivalent to the international standards ASTM 316L (American standard), EN 1.4404 (European standard), and 022Cr17Ni12Mo2 (national standard).

SUS316 stainless steel is standard 316 stainless steel, while 316Ti is a variation of 316 stainless steel with a small amount of titanium (Ti) added to enhance certain properties.

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1.4301 is an austenitic stainless steel, usually called 06Cr19Ni10 in China (the old grade is 0Cr18Ni9), with good strength and toughness. Its tensile strength is ≥520MPa, yield strength is ≥205MPa, elongation is ≥40%, and hardness is ≤187HB.

316 stainless steel has good corrosion resistance in normal temperature and low concentration salt water, but pitting corrosion, crevice corrosion or stress corrosion may still occur in high concentration, high temperature or long-term immersion salt water environment.