904L 1.4539 Uns N08904 Hex Head Cap Screw

• Customization: Available
• Material: Stainless Steel
• Type: Hexagon Head
• Model NO.: DIN/ANSI/ASME
• Connection: Common Bolt
• Head Style: Hexagonal
• Standard: DIN, ANSI
• Grade: 904L/1.4539
• Application: Environmental
• Finish: Passivation
• Price for The Size: DIN933 M12X70
• Packing: Small Box
• Certificates: En10204-3.1b
• PMI Testing: Each Lot
• Transport Package: CTN, Then in Pallet
• Specification: M5-45
• Trademark: HT
• Origin: Jiangsu, China
• HS Code: 731815000
• Production Capacity: 10000/Month

Product Description

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Professional super stainless steel 904L fasteners manufacturer!
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Product Description

Product Parameters

Name	904L BOLT
Standard	DIN931/DIN933,ISO4014/ISO4017,ASME B 18.2.1, JIS B1180
Size Range	M5-M64 or non-standard as requested
Finish	Bright&Clean
Marking	HT&FST or customization
Material	904L,1.4539,UNS N08904
Grade	Grade 80
Certificates	EN10204-3.1B
Non-standards	OEM is available, according to drawing or sample
Samples	Samples available
Package	Bulk in box and then in cartons, then on pallets, or according to customers' requirement.
Payment	T/T,Western Union

 

Similar grades of corrosion resistant alloy 904L

 

UNS	AISI/ASME	ID	W.Nr
NO8904	904L	F904L	1.4539

 

Chemical composition of corrosion resistant alloy 904L

Alloy	%	Ni	Cd	Mo	Cu	Fe	C	Mn	Cu	S
904L	Min.	24	19	4	1	Bal
	Max.	26	21	5	2		0.02	2	0.03	0.015

 

Physical properties of corrosion resistant alloy 904L

 

Density	8.0 g/cm³
Melting point	1300~1390 ºC

 

Minimum value of mechanical properties of corrosion resistant alloy 904L at room temperature

Tensile strength Rm N/mm²	Yield strength RP0.2 N/mm²	Elongation A 5 %
490	215	35

Corrosion Resistance

Grade 904L stainless steels have excellent resistance to warm seawater and chloride attack. The high resistance of grade 904L against stress corrosion cracking is due to the presence of high amounts of nickel in its composition. Moreover, the addition of copper to these grades develops resistance to sulphuric acid and other reducing agents in both aggressive and mild conditions.
The corrosion resistance of grade 904L is intermediate between super austenitic grades, with 6% molybdenum content, and standard 316L austenitic grades. Grade 904L is less resistant to nitric acid than grades 304L and 310L, which are free of molybdenum. This steel grade needs to be solution treated following cold working, to achieve maximum stress corrosion cracking resistance under critical environments.

Applications

Some of the major applications of grade 904L stainless steels include:

• Wiring in electrostatic precipitators
• Oil refinery components
• Seawater cooling devices
• Gas scrubbing plants
• Pulp and paper processing industries
• Acetic, phosphoric and sulphuric acid processing plants