Metal Tubular Products 904L Stainless Steel 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.
Stainless Steel DIN 1.4539 Seamless TubesStockist, SS UNS N08904 Seamless Tubing, SS 904L Cold Drawn Tubes, SS 904L Seamless Tubes, SS 904L Seamless Tubing In India.Although originally developed for its resistance to sulphuric acid it also has a very high resistance to a wide range of environments. A PRE of 35 indicates that the material has good resistance to warm sea water and other high chloride environments. High nickel content results in a much better resistance to stress corrosion cracking than the standard austenitic grades. Copper adds resistance to sulphuric and other reducing acids, particularly in the very aggressive "mid concentration" range.
null | Alloy 904L |
Ni | 23 – 28 |
Mo | 4 – 5 |
Cr | 19 – 23 |
Cu | 1 – 2 |
C | 0.02 max |
Mn | 2.0 max |
Si | 1.0 max |
P | 0.045 max |
S | 0.035 max |
Density | 8.05 g/cm3 |
Melting Point | 1350 °C (2460 °F) |
Tensile Strength | Psi – 71000 , MPa – 490 |
Yield Strength (0.2%Offset) | Psi – 32000 , MPa – 220 |
Elongation | 35 % |
Pharmaceutical Equipment | Chemical Equipment |
Sea Water Equipment | Heat Exchangers |
Heat Exchangers | Gas Processing |
Condensers | Specialty Chemicals |
Pulp and Paper Industry | Pharmaceuticals |
Exporting Steel Pipes & Tubes to over 60 countries including Afghanistan, Albania, Andorra, Angloa, Austria, Australia, Bahrain, Bangladesh, Bhutan, Brazil, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Canada, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Madagascar, Mexico, Moldova, Monaco, Malaysia, Maldives, Mongolia, Myanmar (Burma), Nepal, New Zealand, North Korea, Netherlands, Norway, Nigeria, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia, Singapore, South Korea, South Africa, Sri Lanka, Sudan, Syria, Taiwan, Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Venezuela, Vietnam, Yemen, etc.