Why is 304 stainless steel called 304? !
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Why is 304 stainless steel called 304? ! How did this 304 come about? Because SUS304? ! Thank you. . . .
For this type of material, the name given for its model/grade is 304. . . In the United States, it is designated as UNS S30400; in China it is referred to as model 304, with the digital code S30408 and the grade designation 06Cr19Ni10. In Japan, it is called SUS304. As for how these numbers are determined, it’s a topic that requires in-depth research. . . I can’t answer. .
SUS304. . . . . .
3 is the austenitic system, and 04 might be a serial number.
I see, a professional then. . . . Does the 3 in 316 also represent austenite? Doesn’t 316 seem to be martensitic? !
Dude, it’s best to look this up online; you’re probably the first person to call 316 martensite
Hehe, I really didn’t check it; my apologies. . . .
I searched online about 316: It is the second most widely used steel grade after 304, and is primarily used in the food industry, for watch accessories, in the pharmaceutical industry, and for surgical instruments. The addition of molybdenum gives it a special corrosion-resistant structure. It is also used as \"marine steel\" because it has better resistance to chloride corrosion compared to 304. SS316 is typically used in nuclear fuel reprocessing facilities. 18/10 grade stainless steel generally also meets this application level. S1: Ferrite S2: Austenite-ferrite S3: Austenite S4: Martensite
Hehe, I said there is martensite. . . . . Thank you. . . .