Ganyeah Holding Group Co., Ltd. is the manufacturer of stainless steel pipe and the upstream and downstream products as leading industries, integrates science, industry and trade of large enterprise groups. Investment in such areas as  industrial 904L 3 Inch Stainless Steel Pipe manufacturing, Nickel mining, smelting of nickel alloy and its application in research and development of new technologies and other industries. The group through professional management, strong capital support, large-scale operations and good credit guarantee to provide high value-added products and services to our domestic and foreign customers

The company has an integrated Quality Assurance System and certification including ISO 14001Enviromental Management System Certification, API 5LC, as well as DNV,GL, ABS, TUV, LR.

904L 3 Inch Stainless Steel Pipe

highly corrosion-resistant steel

1.4539 is a highly corrosion-resistant, austenitic steel with a high resistance to a number of organic and inorganic acids. It has a high resistance to pitting corrosion and stress cracking corrosion.

904L 3 Inch Stainless Steel Pipe 1.4539 in use

This grade can also be used for media containing chloride, sea water, sulphuric and phosphoric acid solutions.

1.4539 is susceptible to the formation of hot cracks, on the other hand the material can be easily welded with all methods.

Assignment to current and older standards

• Designation according to DIN: X 1 Ni Cr Mo Cu N 25-20-5

• ASTM grade: 904 L

• EN: 1.4539

• ASME: 904 L

• AFNOR: X1NiCrMoCu 25-20-5

• SIS: 2562

• UNS: N 08904

• SEW 400(91´): 1.4539

• Vd TÜV 421: 1.4539




Chemical composition reference analysis (as weight %)

• GradeAmount %

C	≤ 0,02
P	< 0,045
S	≤ 0,03
Si	0,7
Mn	≤ 2,0
Cr	19 – 21
Mo	4 – 5
Ni	24 – 26
Cu	1,0 – 2,0
N	max. 0,15