904L Stainless steel plate

Alloy 904L is a superaustenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments. The combination of high chromium and nickel content, coupled with additions of molybdenum and copper, assure good to excellent corrosion resistance.

With its highly alloyed chemistry — 25% nickel and 4.5% molybdenum, 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels.

Alloy 904L was originally developed to withstand environments containing dilute sulfuric acid. It also offers good resistance to other inorganic acids such as hot phosphoric acid as well as most organic acids.

Alloy 904L is easily welded and processed by standard shop fabrication practices.

Product Details

Product Name	Stainless Steel Sheets/Plates
Thickness	0.3mm-3mm or 3mm-50mm
Width	20mm-1500mm or as required
Length	1500-6000mm or as required
Standard	ASTM/AISI
Technique	Cold rolled/Hot rolled
Surface Treatment	2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, chequered, embossed, hairline, sand blast, Brush, etching, Hot rolled plate (HR), Cold rolled sheet (CR), SATIN (Met with Plastic Coated) etc
Thickness Tolerance	±0.01mm~ ±0.25mm
Material	904L
Application	It is mainly used in chemical industry, petroleum, petrochemical and automotive industries.
MOQ	1 ton , We can accept sample order.
Shipment Time	Within 15-20 workdays after receiving deposit or workable L/C
Export Packing	Standard Export Seaworthy Package.Suit for all kinds of transport,or as required
Capacity	250,000 tons/year

Chemical Composition:

Grade		C	Mn	Si	P	S	Cr	Mo	Ni	Cu
904L	min.	-	-	-	-	-	19	4.0	23	1.0
904L	max.	0.02	2.0	1.0	0.045	0.035	23	5.0	28	2.0

Mechanical Properties:

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness
				Rockwell B (HR B)	Brinell (HB)
904L	490	220	36	70-90 typical	150

Applications

Aerospace – piston engine manifolds
Chemical Processing
Expansion Joints
Food Processing – equipment and storage
Petroleum Refining – polythionic acid service
Waste Treatment – thermal oxidizers

Benefits

Higher creep stress and rupture properties when compared with 304
Ideal for high temperature service
Overcomes sensitization and intergranular corrosion concerns
Can be used in elevated temperature applications for ASME Boiler and Pressure Vessel Code applications
Excellent mechanical properties

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