904L stainless steel tubing represents the pinnacle of austenitic stainless steel performance, specifically engineered to excel in highly corrosive environments where standard stainless steels like 304 or 316 are insufficient. With its exceptionally high levels of chromium, nickel, molybdenum, and copper, 904L tubing offers unmatched resistance to a wide range of corrosive media, making it the material of choice for critical applications in the chemical processing, oil and gas, and pharmaceutical industries.
Product Name | 310S Stainless steel pipe |
Standard | JIS, AISI, ASTM, GB,DIN, EN, etc. |
Material | 310S |
Surface | black painted, anti rust varnished, PE coated, anti rust oiled, galvanized, checkered, color coated |
Outside diameter | 6mm-426mm, or as customer's requirement |
Length | 1m-12m, or as customer's requirement |
Wall thickness | 0.5mm-10mm or customer's requirement |
Technical Methods | Hot Rolled, Cold rolled |
Packing | Standard Seaworthy Packing, according to customer required |
MOQ | 1 Ton, more quantity price will be lower |
Key Features & Advantages
Exceptional Corrosion Resistance: The defining characteristic of 904L is its superior resistance to uniform corrosion, particularly in sulfuric acid, phosphoric acid, and other complex acidic chlorides. The addition of copper enhances its performance in sulfuric acid environments, far surpassing conventional molybdenum-alloyed steels.
Excellent Pitting and Crevice Corrosion Resistance: The high molybdenum and chromium content provides outstanding resistance to localized attack from chlorides, making it ideal for use in seawater and other chloride-containing process streams.
High Strength and Durability: 904L offers excellent mechanical properties, including high tensile and yield strength, ensuring structural integrity and long service life under demanding conditions.
Outstanding Fabricability: Despite its high alloy content, 904L can be welded and fabricated using standard techniques, although it requires greater care and more power than standard austenitic grades due to its higher strength.
Low Carbon Content: The low carbon content (0.02% max) minimizes the risk of carbide precipitation during welding, preserving its corrosion resistance in the heat-affected zones (HAZ) and eliminating the need for post-weld annealing in most cases.
Technical Specifications (Typical)
UNS Designation: UNS N08904
DIN/EN Designation: 1.4539
Chemical Composition (Typical %):
Chromium (Cr): 19.0 - 23.0
Nickel (Ni): 23.0 - 28.0
Molybdenum (Mo): 4.0 - 5.0
Copper (Cu): 1.0 - 2.0
Manganese (Mn): 2.00 max
Silicon (Si): 1.00 max
Carbon (C): 0.02 max
Iron (Fe): Balance
Mechanical Properties (Annealed Condition):
Tensile Strength: ≥490 MPa (71 ksi)
Yield Strength (0.2% Offset): ≥220 MPa (32 ksi)
Elongation: ≥35%
Hardness: ≤90 HRB
Available Specifications & Sizes
Our 904L stainless steel tubing is manufactured to meet the highest international quality standards, including:
ASTM B677 (UNS N08904) for seamless and Welded pipe for general corrosion service.
ASTM A312 for seamless, welded, and heavily cold worked austenitic stainless steel pipe.
We offer a comprehensive range of:
Types: Seamless (SMLS) and Welded
Schedules: SCH 10S, 40S, 80S, and others as required.
Sizes: A wide range of Outside Diameters (OD) and wall thicknesses to meet your specific design needs.
Surface Finish: Mill finish, polished, pickled, or passivated.
Applications
904L tubing is indispensable in applications where failure is not an option. Its primary uses include:
Chemical Processing Industry: Reactors, heat exchangers, and piping systems handling sulfuric acid, phosphoric acid, and acetic acid.
Oil & Gas Industry: Downhole and surface equipment, piping for sour gas (H₂S) environments, and components in seawater cooling systems.
Pollution Control: Scrubbers and ductwork in flue gas desulfurization (FGD) units.
Pharmaceutical Industry: Process piping where ultra-high purity and corrosion resistance are critical.
Seawater Handling: Heat exchangers, condenser tubes, and desalination plant components.
Sign up for our newsletter
Copyright © 2024 Shandong Ruixiang Iron and Steel Group Co., Ltd. All rights reserved
SitemapThis website uses cookies to ensure you get the best experience on our website.