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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, is non-magnetic, and provides superior formability, toughness, and weldability.
Grade 904L stainless steel demonstrates excellent resistance to warm seawater and chloride attack. The high nickel content provides exceptional 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 is intermediate between super austenitic grades with 6% molybdenum content and standard 316L austenitic grades. This steel grade requires solution treatment following cold working to achieve maximum stress corrosion cracking resistance in critical environments.
Key Features
Non-magnetic properties
Superior corrosion resistance compared to Type 316L and 317L
Excellent resistance to sulphuric, phosphoric, and acetic acids
High resistance to crevice and stress corrosion cracking
Excellent 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
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 customers with high-quality, efficient stainless steel material processing and distribution services.
Company Overview
We specialize in the 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, 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 extensive inventory of nickel base alloy, high temperature alloy spot round steel, tube billets, and imported high temperature alloy steel plates in various specifications, supporting 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, heat treatment furnaces, electroslag remelting furnaces, forging hammers, hot and cold rolling equipment, and comprehensive testing facilities including spectrometers, universal testing machines, hardness testers, and ultrasonic nondestructive testing equipment.
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...