904L Seamless Instrument Tube is a special type of tube with high content of Chromium, Nickel and Molybdenum. SS 904l Stainless Steel Tube is suitable for harsh environments, especially those containing chlorides and other corrosives.
1.4539 AISI 904L Chemical Composition
Element Content (%)
Carbon (C) ≤ 0.020
Manganese (Mn) ≤ 2.00
Silicon (Si) ≤ 1.00
Phosphorus (P) ≤ 0.045
Sulfur (S) ≤ 0.030
Chromium (Cr) 19.00 - 23.00
Nickel (Ni) 23.00 - 28.00
Copper (Cu) 1.00 - 2.00
Molybdenum (Mo) 4.00 - 5.00
Iron (Fe) Remainder
Mechanical Properties of Stainless Steel 904l Seamless Pipe
- Tensile Strength ≥ 520 MPa
- Yield Strength, 0.2% Offset ≥ 240 MPa
- Elongation ≥ 40%
- Hardness, Rockwell B) ≤ 95
Alloy 904L (UNS N08904 | 1.4539 Characteristics
- Corrosion resistance: 904L has extremely high resistance to pitting, crevice corrosion and stress corrosion cracking, and is particularly suitable for highly corrosive environments such as chlorine-containing media, seawater, and sulfuric acid.
- High temperature resistance: It can maintain good performance in high temperature environments
- Good weldability and processability: It is suitable for the production of structural parts and instrument pipes in high temperature and high pressure environments.
ASTM A213 TP904L pipe applications:
- Chemical processing
- Oil and gas
- Pharmaceuticals
- Shipbuilding
- Offshore platforms
