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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.
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.
904L stainless steels demonstrate 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.
Key Features
Non-magnetic properties
Stronger corrosion resistance than Type 316L and 317L
Excellent resistance to sulphuric, phosphoric, and acetic acids
High resistance to crevice and stress corrosion cracking
Superior formability and weldability
Chemical Composition
C
Mn
Si
P
S
Cr
Mo
Ni
Cu
0.02
2.00
1.0
0.045
0.035
19.0-23.0
4.0-5.0
23.0-28.0
1.0-2.0
Typical Applications
Cooling equipment for seawater
Chemical processing of sulphuric, phosphoric, and acetic acids
Heat exchangers and condenser tubes
Gas washing systems
Control and instrumentation
Oil and gas industry equipment
Pharmaceutical production
Wiring in electrostatic precipitators
Available Stock Sizes
Number
Thickness
Size
1
2.0mm
1219×2438mm
2
2.5mm
1219×2438mm
3
3.0mm
1219×2438mm, 1500×6000mm
4
4.0mm
1500×6000mm
5
5.0mm
1500×6000mm
6
6.0mm
1500×6000mm
7
8.0mm
1500×6000mm, 1800/2000mm width
8
10.0mm
1500×6000mm, 1800/2000mm width
9
12.0mm
1500×6000mm, 1800/2000mm width
10
14.0mm
1500×6000mm, 1800/2000mm width
11
16.0mm
1500×6000mm, 1800/2000mm width
12
18.0mm
1500×6000mm
13
20.0mm
1500×6000mm
14
22.0mm
1500×6000mm
15
24.0mm
1500×6000mm
16
26.0mm
1500×6000mm
17
28.0mm
1500×6000mm
18
30.0mm
1500×6000mm
Our 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 6,000 square meters. We offer comprehensive services including laser cutting, water cutting, hot rolling, punching, embossing, large shear bending, and dry casting straightening. Our finished production ensures high-quality, efficient stainless steel material processing and distribution services.
About Our Company
We specialize in the production and sales of superalloys, nickel base alloys, corrosion resistant alloys, precision alloys, cobalt-based alloys, special alloy steels, and special super austenitic stainless steels including 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 substantial inventory of nickel base alloys, high temperature alloys, and imported high temperature alloy steel plates in various specifications. We also supply imported welding wires and rods to support timely delivery for desulfurization and denitration engineering projects, petroleum, and petrochemical equipment.
Our manufacturing facilities include vacuum induction furnaces, semi-vacuum medium frequency induction furnaces, middle and high temperature heat treatment furnaces, electroslag remelting furnaces, 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 comprehensive testing facilities including furnace direct reading spectrometers, spectrophotometers, chemical analysis laboratories, mechanical performance laboratories (with universal testing machines and hardness testing machines), metallographic laboratories, and ultrasonic nondestructive testing equipment. With over ten years of R&D and production experience, our products are recognized for high quality and reliability, earning praise from customers worldwide.
Product Images
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative... Our company is located in Wuxi City, China, we are a stainless steel plate, seamless steel pipe, round steel, steel belt, decorative pipe and other products distribution wholesale private enterprise. Our company operates stainless steel plate, seamless steel pipe, round steel, steel belt, decorative...
