About 904L Stainless Steel
Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy stainless steel contains added copper to improve resistance to strong reducing acids such as sulphuric acid. The material offers excellent resistance to stress corrosion cracking and crevice corrosion.
Grade 904L stainless steel is non-magnetic and provides excellent formability, toughness, and weldability. While it contains high amounts of expensive ingredients like molybdenum and nickel, many applications now use cost-effective duplex stainless steel 2205 as an alternative.
This grade demonstrates excellent resistance to warm seawater and chloride attack. The high nickel content provides superior resistance to stress corrosion cracking, while copper addition develops resistance to sulphuric acid and other reducing agents in both aggressive and mild conditions.
The corrosion resistance of grade 904L falls between super austenitic grades with 6% molybdenum content and standard 316L austenitic grades. For maximum stress corrosion cracking resistance in critical environments, this steel grade requires solution treatment following cold working.
Processing Services
| Service |
Thickness Range |
Platform Size |
| Laser Cutting |
0.4 - 30.0mm |
2000×8000mm |
| Plasma Cutting |
10 - 80.0mm |
2000×10000mm |
| Bending |
Within 30mm |
2m, 6m, 10m length |
| Surface Process |
Within 12mm |
HL, 8K, PVC Cover |
Our company operates a large stainless steel processing center covering 6000 square meters. We provide laser cutting, water cutting, hot rolling, punching, embossing, large shear bending, and dry casting straightening services. Our production capabilities ensure high-quality, efficient stainless steel material processing and distribution services.
About Our Company
We specialize in production and sales of superalloys, nickel base alloys, corrosion resistant alloys, precision alloys, cobalt-based alloys, and special alloy steels including special super austenitic stainless steel and duplex stainless steel. Our product range includes round steel, forgings, steel pipes, steel plates, precision steel belts, flanges, pipe fittings, and fasteners.
All materials are produced and tested in strict accordance with ASTM/ASME, GB, JIS, and other international standards. We maintain extensive inventory of nickel base alloys, high temperature alloys, and imported high temperature alloy steel plates in various specifications. We also supply imported welding wire and welding rods to support desulfurization and denitration engineering projects, petroleum, and petrochemical equipment requirements.
Our manufacturing facilities include vacuum induction furnaces, semi-vacuum medium frequency induction furnaces, heat treatment furnaces, electroslag remelting furnaces, forging hammers, hot and cold rolling mills, annealing furnaces, and comprehensive testing equipment including spectrometers, universal testing machines, hardness testers, and ultrasonic nondestructive testing equipment.