ASTM/ASME B677 / B674 UNS N08904 / 904L /1.4539,STAINLESS STEEL SEAMLESS PIPE/TUBE

904L pipe is a non-stabilised Low carbon high Alloy Austenitic Stainless Steel. The addition of Copper to this grade gives it greatly improved resistance to strong reducing acids, particularly Sulphuric Acid. It is also highly resistant to Chloride attack - both pitting / crevice corrosion and stress corrosion cracking. This grade is non-magnetic in all conditions and has excellent weldability and formability. The austenitic structure also gives this grade excellent toughness, even down to cryogenic temperatures. 904L does have very substantial contents of the high cost ingredients nickel and molybdenum. Many of the applications in which this grade has previously performed well can now be fulfilled at lower cost by Duplex Stainless Steel 2205 (S31803 or S32205), so it is used less commonly than in the past.

YUHONG GROUP deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 25 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 45 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Korea, Singapore, Austrial, Poland, France , ....

Description

Material 1.4539 (alloy 904L) is an austenitic special steel with high molybdenum content as well as addition of copper and extremely low carbon content.
Our product range in 1.4539 are tubes and pipes, fittings and flanges, accessories.

Some of the quality tests carried out by us includes:

Supplementary Testing : Apart from the above mentioned tests, we also carry out on the manufactured products supplementary testing. The tests conducted under this include: