904L Stainless Steel Introduction
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 steel offers excellent resistance to stress corrosion cracking and crevice corrosion, and is non-magnetic with superior formability, toughness, and weldability.
Grade 904L provides excellent resistance to warm seawater and chloride attack. The high nickel content contributes to exceptional stress corrosion cracking resistance, while copper addition enhances resistance to sulphuric acid and other reducing agents in both aggressive and mild conditions.
The corrosion resistance of grade 904L is intermediate between super austenitic grades (6% molybdenum) and standard 316L austenitic grades. This steel grade requires solution treatment following cold working to achieve maximum stress corrosion cracking resistance in critical environments.
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, equipped with laser cutting, water cutting, hot rolling mill, punching, embossing, large shear bending, and dry casting straightening capabilities. We provide high-quality, efficient stainless steel material processing and distribution services.
Company Overview
We specialize in production and sales of superalloy, nickel base alloy, corrosion resistant alloy, precision alloy, cobalt-based alloy special alloy steel and special super austenitic stainless steel, 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 alloy, high temperature alloy spot round steel, tube billets, and imported high temperature alloy steel plates in various specifications.
Our manufacturing facilities include vacuum induction furnace, semi-vacuum medium frequency induction furnace, middle and high temperature heat treatment furnace, electroslag remelting furnace, free forging hammers (6 tons, 4 tons, 1 tons), hot rolling cold rolling steel pipe equipment, precision steel strip cold rolling machines, annealing furnaces, and round bar hot rolling cold drawing machines.
Quality assurance is supported by direct reading spectrometer, spectrophotometer, chemical analysis laboratory, mechanical performance laboratory with universal testing machine and hardness testing machine, metallographic laboratory, and ultrasonic nondestructive testing equipment.