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Stainless steel refers to the air, steam, water and other weak corrosive medium and acid, alkali, salt and other chemical corrosive medium of steel, also known as rust acid-resistant steel.
In practical application, the steel with weak corrosion medium is often called stainless steel, and the steel with chemical medium corrosion resistance is called acid-resistant steel. Because of the difference in chemical composition, the former is not necessarily resistant to chemical medium corrosion, while the latter is generally rustless. The corrosion resistance of stainless steel depends on the alloying elements contained in the steel. Stainless steel basic alloy elements are nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the various USES of stainless steel structure and performance requirements.
Main grades of the stainless steel:
|
TYPE |
EN 10028-7/ EN10088-2 |
ASTM A240 |
JISG4304/4312 |
GB4237/4238 |
|
AUSTENITIC SERIES |
1.431 |
301 |
SUS 301 |
1Cr17Ni7 |
|
1.4318 |
301LN |
SUS 301L |
-- |
|
|
1.4372 |
201 |
SUS 201 |
1Cr17Mn6Ni5N |
|
|
1.4301 |
304 |
SUS 304 |
0Cr18Ni9 |
|
|
1.4307 |
304L |
SUS 304L |
00Cr19Ni10 |
|
|
1.4311 |
304LN |
SUS 304LN |
00Cr18Ni10N |
|
|
1.4541 |
321 |
SUS 321 |
0Cr18Ni10Ti |
|
|
1.455 |
347 |
SUS 347 |
0Cr18Ni11Nb |
|
|
1.4305 |
303 |
SUS 303 |
Y1Cr18Ni9 |
|
|
1.4303 |
305 |
SUS 305J1 |
1Cr18Ni12 |
|
|
1.4306 |
304L |
SUS 304L |
00Cr19Ni10 |
|
|
1.4401 |
316 |
SUS 316 |
0Cr17Ni12Mo2 |
|
|
1.4404 |
316L |
SUS 316L |
00Cr17Ni14Mo2 |
|
|
1.4436 |
316 |
SUS 316 |
0Cr17Ni12Mo2 |
|
|
1.4432 |
316L |
SUS 316L |
00Cr17Ni14Mo2 |
|
|
1.4406 |
316LN |
SUS 316LN |
00Cr17Ni12Mo2N |
|
|
1.4429 |
S31653 |
SUS 316LN |
00Cr17Ni13Mo2N |
|
|
1.4571 |
316Ti |
SUS 316Ti |
0Cr18Ni12Mo2Ti |
|
|
1.4435 |
316L |
SUS 316L |
00Cr17Ni14Mo2 |
|
|
1.4438 |
317L |
SUS 317L |
00Cr19Ni13Mo3 |
|
|
1.4539 |
904L |
-- |
-- |
|
|
1.4948 |
304H |
SUS 304 |
1Cr18Ni9 |
|
|
1.4878 |
321H |
SUS 321 |
-- |
|
|
1.4833 |
309S |
SUS 309 |
-- |
|
|
1.4828 |
-- |
SUH 309 |
1Cr20Ni14Si2 |
|
|
1.4845 |
310S |
SUS 310S |
0Cr25Ni20 |
|
|
FERRITE SERIES |
1.4016 |
430 |
SUS 430 |
1Cr17 |
|
MARTENSITIC SERIES |
1.4006 |
410 |
SUS 410 |
1Cr12 |
|
1.4005 |
416 |
SUS 416 |
Y1Cr13 |
|
|
1.4021 |
420 |
SUS 420J1 |
2Cr13 |
|
|
1.4028 |
420 |
SUS 420J2 |
3Cr13 |
|
|
DUPLEX SERIES |
1.4162 |
S32101 |
-- |
-- |
|
1.4362 |
S32304 |
-- |
-- |
|
|
1.4462 |
S32205 |
SUS 329J3L |
00Cr22Ni5Mo3N |
|
|
S31803 |
||||
|
1.446 |
S32900 |
SUS329J1 |
0Cr26Ni5Mo2 |
|
|
1.441 |
S32750 |
-- |
-- |
|
|
1.4501 |
S32760 |
-- |
-- |
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