The 904L super austenitic stainless steel forgings from JINLUN.

The 904L(NS N08904, DIN1.4539)is the super austenitic stainless steel,with 24-26% Ni,14-18% 

Cr and 4.5% Mo contents. As a austenitic stainless steel with lower Carbon contents and higher 

Nickel, Molybdenum contents. 

The 904L stainless steel was imported from the French company H.S at the beginning. It was first 

invented by the Finnish company OUTOKUMPU OY. This material had the very good capacity of 

activation and deactivation transformations, excellent corrosion resistance. The 904L stainless 

steel can well work in vitriol oils below 70℃ with various concentration, it can resistant the 

ethylic acid with various concentration and temperatures in normal pressure as well as the in the 

liquid mixture of ethylic acid and formic acid. 

The 904L stainless steel had nice performances of welding and machining. This material widely used 

in kinds of petroleum and petrochemical equipments, storage and transport equipments for vitriol 

oils, power plant flue gas desulfurization device, organic acid treatment system, seawater 

treatment equipments, seawater heat exchanger, paper industry equipments, sulfuric acid 

equipments, nitric acid equipments, acid and pharmaceuticals industry and other chemical 

equipments, pressure vessels, food equipments, centrifugal machines, reactors, etc.

It is very hard for most of producers to forge this material well, the 904L is easy to be crack 

when forged. With long experiences and advance technology, we forged a lot of 904L stainless 

steels well, in general, we need to press the 904L forgings 4-5 times, it's means that the 

forging should be back to the furnace for heating 4-5 times,for the normal stainless steels, it's

only need to press 2 times at most.

We supply kinds of forged rings, flanges, bars, shafts and other parts in 904L materials at the 

moment. The quality of the 904L forgings from JINLUN is perfect and satisfied with our European 


It was well known as watchcase of ROLEX is made from the 904L stainless steel. 

If you have the needs of 904L forgings, 904L forged rings, 904L forged bars, 904L forged shafts, 

904L flanges, please contact with us at , Mr. Li Xia .

Jingjiang Jinlun Machine Manufacturing Co.,Ltd.

Mr. Xia Li (General Manager)

Tel:     +86 (0)523 84208366

Fax:     +86 (0)523 84219168

Mobile:  +86 18852658858

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Skype: yangyi8899