904L super austenitic stainless steel is a low carbon high nickel, molybdenum austenitic stainless steel, the introduction of France H·S company proprietary materials. It has good activation-passivation transformation ability, excellent corrosion resistance, good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid, phosphoric acid, good pitting resistance in neutral chloride ion medium, and good resistance to crevice corrosion and stress corrosion. It is suitable for various concentrations of sulfuric acid below 70℃, resistant to any concentration and any temperature of acetic acid under atmospheric pressure, and corrosion resistance in the mixed acid of formic acid and acetic acid is also very good.

Surface Finish	Definition	Application
No.1	The surface finished by heat treatment and pickling or processes corresponding there to after hot rolling.	Chemical tank, pipe
2B	Those finished, after cold rolling, by heat treatment, pickling or other equivalent treatment and lastly by cold rolling to given appropriate luster.	Medical equipment, Food industry, Construction material, Kitchen utensils.
No.4	Those finished by polishing with No.150 to No.180 abrasives specified in JIS R6001.	Kitchen utensils, Electric equipment, Building construction.
Hairline	Those finished polishing so as to give continuous polishing streaks by using abrasive of suitable grain size.	Building Construction.
BA/8K Mirror	Those processed with bright heat treatment after cold rolling.	Kitchen utensils, Electric equipment, Building const

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Standard	ASTM, JIS, DIN, AISI, KS, EN...
Martensite-Ferritic	Ss 405 , 409, 409L, 410, 420, 420J1 , 420J2 , 420F , 430 ,431...
Austenite Cr-Ni -Mn	201, 202...
Austenite Cr-Ni	304, 304L, 309S, 310S...
Austenite Cr-Ni -Mo	316, 316L...
Super Austenitic	904L,  220 , 253MA, 254SMO, 654MO
Duplex	S32304 , S32550 ,S31803 ,S32750
Austenitic	1.4372 ,1.4373, 1.4310, 1.4305, 1.4301, 1.4306 , 1.4318 ,1.4335, 1.4833 ,  1.4835 ,  1.4845,  1.4841, 1.4401 , 1.4404 , 1.4571 ,1.4438, 1.4541 , 1.4878 ,  1.4550 , 1.4539 , 1.4563 , 1.4547
Duplex	1.4462 , 1.4362 ,1.4410 , 1.4507
Ferritic	1.4512, 1.400 , 1.4016 ,1.4113 , 1.4510 ,1.4512, 1.4526 ,1.4521 , 1.4530 , 1.4749 ,1.4057
Martensitic	1.4006 , 1.4021 ,1.4418 ,S165M ,S135M
Surface Finish	No. 1, No. 4, No. 8, HL, 2B, BA, Mirror...
Specification	Thickness	0.3-120mm
	Width	1000 x2000, 1219x2438, 1500x3000, 1800x6000, 2000x6000mm
Payment Term	T/T, L/C
Package	Export standard package or as your requirements
Deliver Time	7-10 working days
MOQ	1 Ton

Grade	Fe	Ni	Cr	Mo	Cu	Mn≤	P≤	S≤	C≤
904L	Margin	23-28%	19-23%	4-5%	1-2%	2.00%	0.045%	0.035%	0.02%

The density of stainless steel 904L is 8.0g /cm3.  σb≥520Mpa    δ≥35%