904l Duplex

904l Duplex video

Alloy 904L is a super austenitic stainless steel designed for a variety of medium to high corrosion resistance environments. The high content of chromium and nickel, together with molybdenum and copper as combined ingredients, ensures excellent corrosion resistance. With a high alloy chemical composition of 25% nickel and 4.5% molybdenum, 904L is superior to molybdenum-containing stainless steel 316L and 317L in terms of resistance to chloride stress corrosion cracking, pitting corrosion and corrosion resistance. Alloy 904L was originally developed to resist corrosion in dilute sulfuric acid. It also has good corrosion resistance against other inorganic acids (such as hot phosphoric acid) and most organic acids. 904L alloy is easily welded and machined in standard shop manufacturing practices.

 

 

Element	Min	Max
C	-	0.02
Mn	-	2
Ni	23	28
Cr	19	23
S	-	0.3
Mo	4	5
N	-	0.1
Cu	1	2
P	-	0.03
Si	-	0.7

 

 

• Air Pollution Control - Coal Power Plant Scrubbers
• Chemical processing - process equipment for the production of sulfuric acid, phosphoric acid, inorganic and organic acids and the production of phosphate fertilizers
• Metallurgical processing - sulfuric acid pickling equipment
• Oil and Gas Production - Offshore Processing Equipment
• Pharmaceutical Industry - Process Equipment
• Pulp and Paper - Processing Equipment
• Seawater and brackish water - condensers, heat exchangers and piping systems

 

 

904L, like other commonly used CrNi austenitic steels, has good resistance to pitting corrosion and crevice corrosion, high resistance to stress corrosion fracture, good resistance to intergranular corrosion, good processing performance and welding performance. During hot forging, the maximum heating temperature can reach 1180 degrees Celsius, and the minimum stop temperature is not less than 900 degrees Celsius. This steel can be hot-formed at temperatures of 1000 – 1150 degrees Celsius. The steel is heat treated at 1100-1150 degrees Celsius and cooled quickly after heating.

Our Company

38000㎡ workshop and 200+ emplovees to meet your huge demands.

 

904l Duplex Packing & Delivery

 

Customer Visit

Gnee exports steel to over 70 countries and collaborates with more than 600 companies worldwide

 

 

Q:What is your delivery time ?

A: Our delivery time is about one week, timing according to the number of customers.

 

Q: How long is your delivery time?

A: It is according to quantity. Generally it is 30 days.

 

Q:What are the shipping ports?

A:Under normal circumstances, we ship from Tianjin port, you can choose other ports according to your needs.

 

Q:Can you send samples?

A:Of course, we can send samples to all parts of the world, our samples are free, but customers need to bear the courier costs.

 

Q: About the product price of 904l Duplex?
A: Due to cyclical changes in raw material prices, prices vary in different periods.

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