stainless steel 904L welded pipe
About the performance properties of stainless steel 904L welded pipe
904L stainless steel welded pipe offers exceptional performance, including resistance to acid, chloride, and pitting corrosion, while also maintaining good strength and toughness at both high and low temperatures. Its low carbon content provides excellent weldability and formability, enabling it to be fabricated into complex shapes while maintaining corrosion resistance. These properties make it an ideal choice for demanding applications in industries such as chemical, marine, and oil and gas, which are often exposed to harsh, corrosive environments.
What are the specifications for 904L stainless steel pipe?
904L stainless steel pipe has a yield strength of 220 MPa, a tensile strength of 490 MPa, and a hardness range of 70-90°, conforming to ASTM B673. 904L stainless steel pipe dimensions vary according to ASTM, ASME, and API standards.
Stainless Steel 904L Welded Pipe Specification
Range : 6NB to 1200NB
Outer Diameter : 1/8″ NPS to 12″ NPS
Wall Thickness : 0.6 mm to 12.7 mm
Schedules : 5, 10S, 10, 30, 40S, 40, 80, 80S, XS, 160, XXH
Length : Upto 30 meters, Custom Cut Lengths
Specifications : ASTM B673 / ASTM SB673
Types : Round, Square, Rectangle, Coil, "U" Shape, Hydraulic
Chemical Composition of SS 904L Welded Pipe
| Grade | 904L |
| Tensile Strength (MPa) min | 490 |
| Yield Strength 0.2% Proof (MPa) min | 220 |
| Elongation (% in 50mm) min | 35 |
| Hardness | |
| Rockwell B (HR B) max | 70-90 typical |
| Brinell (HB) max | – |
Mechanical Properties of SS 904L Welded Pipes
| Grade | 904L |
| Tensile Strength (MPa) min | 485 |
| Yield Strength 0.2% Proof (MPa) min | 170 |
| Elongation (% in 50mm) min | 40 |
| Hardness | |
| Rockwell B (HR B) max | 92 |
| Brinell (HB) max | 201 |
904L Welded Pipe Corrosion Resistance
Acid Resistance: 904L alloy offers excellent corrosion resistance to strong reducing acids, particularly sulfuric and phosphoric acids.
Chloride Resistance: Its high molybdenum and nickel contents provide excellent protection against pitting and crevice corrosion in chloride-rich environments, such as seawater.
Stress Corrosion Cracking Resistance: The alloy's high nickel content enhances its resistance to stress corrosion cracking, especially in marine and chloride-containing environments.
904L Welded Pipe Mechanical Properties
Temperature Stability: It maintains good strength and toughness at both high and low temperatures, making it suitable for applications with large temperature fluctuations and sub-zero environments.
Strength and Ductility: 904L alloy possesses high tensile strength and good ductility, making it easy to form into complex shapes for various structures.
Main Applications of 904L Welded Pipe
The unique properties of 904L welded pipe make it ideal for:
Chemical Processing: It is used in chemical plants and equipment to handle various acids, such as sulfuric acid. Marine Industry: Due to its resistance to seawater corrosion, it is used in the construction of offshore platforms, seawater cooling systems, and marine pipelines.
Oil and Gas Industry: Used in petroleum refining and environments where harsh chemicals are present.
Pharmaceutical Industry: Ensures product purity and prevents contamination in processing environments.
Gnee Steel specializes in the production and sale of a wide range of stainless steel products, including 304, 316, 321, 904, 904L, 2205 Duplex, 2205 Duplex, and 316L stainless steel. Gnee Steel's products are widely used in the kitchen, aerospace, chemical, power, automotive, and nuclear energy sectors. We also provide custom stainless steel solutions tailored to customer needs. For stainless steel pricing or custom alloy solutions, please email ru@gneesteelgroup.com for a quote.