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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 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 the 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. Grade 904L is less resistant to nitric acid than molybdenum-free grades 304L and 310L. This steel grade requires solution treatment following cold working to achieve maximum stress corrosion cracking resistance in critical environments.
Key Features of Grade 904L
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 of Grade 904L
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 Application Areas for N08904
Cooling equipment for seawater
Chemical processing of sulphuric, phosphoric, and acetic acids
Heat exchangers
Condenser tubes
Gas washing systems
Control and instrumentation
Oil and gas industry
Pharmaceutical production
Wiring in electrostatic precipitators
Available Stock Sizes for 904L Stainless Steel Plate
Number
Thickness (mm)
Size
1
2.0
1219×2438mm
2
2.5
1219×2438mm
3
3.0
1219×2438mm, 1500×6000mm
4
4.0
1500×6000mm
5
5.0
1500×6000mm
6
6.0
1500×6000mm
7
8.0
1500×6000mm, 1800/2000mm width
8
10.0
1500×6000mm, 1800/2000mm width
9
12.0
1500×6000mm, 1800/2000mm width
10
14.0
1500×6000mm, 1800/2000mm width
11
16.0
1500×6000mm, 1800/2000mm width
12
18.0
1500×6000mm
13
20.0
1500×6000mm
14
22.0
1500×6000mm
15
24.0
1500×6000mm
16
26.0
1500×6000mm
17
28.0
1500×6000mm
18
30.0
1500×6000mm
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...
