Description
1.4539 Round Bar / SS 904L Round Bar
1.4539 Round Bar is a Stainless Steel, Super austenitic nickel-chromium-molybdenum-copper steel, resistant to various organic and inorganic acids. The high-alloy stainless steel 1.4539 is also seawater resistant and has a high pitting resistance. Areas of application are the construction industry, the chemical and medical industry.
904L is a stainless steel alloy that displays high resistance to corrosion, particularly against acidic environments. Additions of copper and carbon give it distinct characteristics, with the copper serving as a strengthening agent against corrosive acids. The small amount of carbon in its compositions gives 904L increased weldability and cleanliness against continual wear and tear. The combination of chromium, nickel, molybdenum and copper in its makeup serve to give 904L exceptional resistance against sulfuric acid. The metal was developed to prevent corrosion where such acids are utilized or applied. Therefore, 904L is approved for use in acid production and concentration, along with the transport of such substances.
1.4539 Stainless steel is one of the best stainless steel grade for corrosion resistance. This grade is written as 904L or X1NiCrMoCu25-20-5 according to EN norm and it is written as UNS S08904 according to UNS norm. 904L stainless grade contains very high level of nickel, molibdenium, chromium and combinations of all these elements makes this stainless steel grade very resistant to corrosion resistance. 904L material is one of the strongest material to corrosion at Bircelik warehouse and if this grade is not enough, then nickel alloys or titanium alloys has to be choosen, because rest of the stainless steel grades will not survive if 904L is not enough. 904L has also a very good anti-magnetic property and for alot of applicatipons, this is another reason to use 904L stainless steel grade. 1.4539 stainless steel has a very low content of carbon and low carbon also improving this grade’s corrosion resistance level.
SS904L is not a very strong stainless steel grade and it does not have strong mechanical properties. 1.4539 is not a cheap stainless steel grade and it is not so easy to machine it. 1.4539 material used in petrochemical industry, paper mills, treatment plants, gas production and filling plants and luxery watch industry.
We Textron Steel & Alloys Stocks 904L in Bright Bar from 10mm Dia to 80 mm Dia. and in Black From 50mm Dia to 280 mm Dia.
We also provide Forging in 904L as per client requirements. So contact us for any requirement.
Chemical Composition of 1.4539 Round Bars :
| C | max 0.02 |
| Si | max 0.70 |
| Mn | max 2.00 |
| Ni | 24.00 – 26.00 |
| P | max 0.03 |
| S | max 0.01 |
| Cr | 19.00 – 21.00 |
| Mo | 4.00 – 5.00 |
| N | max 0.15 |
| Cu | 1.20 – 2.00 |
Equivalent of 1.4539 Round Bar :
| Grade (EU) | X1NiCrMoCu25-20-5 |
| Number | 1.4539 |
| USA | 904L N08904 |
| France, ANFOR | Z2NCDU25-20 |
| England, BS | 904S13 |
| Sweden, SS | 2562 |
| Poland, PN | 00H22N24M4TCu |
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