904L UNS N08904 Stainless Steel Plate 6*1500*6000mm NO.1 Finished Hot Rolled
Alloy 904 (N08904) stainless steel is a high alloy austenitic product intended for use under severely corrosive conditions. It offers good resistance to:
Pitting and crevice corrosion
Intergranular corrosion
Stress corrosion cracking
General corrosion
Grade 904L stainless steel is a non-stabilized austenitic stainless steel with low carbon content. This high alloy stainless steel has added copper to improve its resistance to strong reducing acids, such as sulphuric acid. The steel is also resistant to stress corrosion cracking and crevice corrosion. Grade 904L stainless steel is non-magnetic, and offers excellent formability, toughness and weldability. Grade 904L contains high amounts of expensive ingredients, such as molybdenum and nickel. Today, most of the applications that employ grade 904L are replaced by low-cost duplex stainless steel 2205. Grade 904L stainless steels have excellent resistance to warm seawater and chloride attack. The high resistance of grade 904L against stress corrosion cracking is due to the presence of high amounts of nickel in its composition. Moreover, the addition of copper to these grades 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 grades 304L and 310L, which are free of molybdenum. This steel grade needs to be solution treated following cold working, to achieve maximum stress corrosion cracking resistance under critical environments.
Products Description
Width
1000mm/1219mm/1240mm/1500mm/2000mm or as customer's requirements
904L stainless steel is non-magnetic and offers excellent formability, toughness, and weldability. Grade 904L contains high amounts of expensive ingredients, such as molybdenum and nickel. Today, most of the applications that employ grade 904L are replaced by low-cost duplex stainless steel 2205.
904L Stainless Steel Chemical Composition (Max %)
The chemical composition of stainless steel 904L contains roughly 19 to 23% chromium, 23 to 28% nickel, 4 to 5% molybdenum, and 1.0-2.0% Cu, which gives the alloy greater corrosion resistance than 316L.
Grade
Ni
Cr
Mo
Cu
C
Mn
Si
P
S
Fe
904L
23 – 28
19 – 23
4 -5
1 – 2
0.02
2
1
0.045
0.035
Balance
904L Stainless Steel Mechanical Properties
Grade
Tensile Strength, Min
Elongation
Elognation
Hardness
904L
490 Mpa
215 Mpa
35%
90 HRB Max
904L Stainless Steel Physical Properties
Grade
Density (Kg/M 3 )
Elastic Modulus (GPa)
Mean Co-Eff Of Thermal Expansion (Μm/M/°C) 0-100°C
Thermal Conductivity (W/M.K) At 20°C
Specific Heat 0-100°C (J/Kg.K)
Elec Resistivity (NΩ.M)
904L
7900
190
15
11.5
500
952
904L Stainless Steel Equivalents
AISI
UNS
DIN
EN
904L
N08904
1.4539
X1NiCrMoCu25-20-5
904L, 1.4539 Comparison
Standard
Grade
C
Mn
Cr
Ni
Mo
N
Other
ASME II A SA-240
UNS N08904
≤0.020
≤2.00
19.00-23.00
23.0-28.0
4.00-5.00
≤0.10
Cu:1.0-2.0
ASTM A240
904L
≤0.020
≤2.00
19.0-23.0
23.0-28.0
4.0-5.0
≤0.10
Cu:1.0-2.0
EN 10028-7
1.4539
≤0.020
≤2.00
19.0-21.0
24.0-26.0
4.0-5.0
≤0.15
Cu:1.20-2.00
EN 10088-2
1.4539
≤0.020
≤2.0
19.0-21.0
24.0-26.0
4.0-5.0
≤0.15
Cu:1.2-2.0
EN 10088-3
1.4539
≤0.020
≤2.00
19.0-21.0
24.0-26.0
4.0-5.0
≤0.15
Cu:1.20-2.00
EN 10088-4
1.4539
≤0.020
≤2.0
19.0-21.0
24.0-26.0
4.0-5.0
≤0.15
Cu:1.2-2.0
FAQ
Q: What is your major market? A: 95% of our tubes export. We mainly sell to America, Canada, Australia, Japan, Russia, Germany, France, Dubai, Brazil, Chile,India, Thailand, South Africa, Egypt, Nigeria, etc. Q: Can you provide mill test certificate? A: Yes! Mill Test Certificate for both hot rolled raw material coils and cold rolled coils are available. Q:How can I get your price list? A: Please send us your email or fax and order information - Quantity, Specification (steel type,thickness, width, surface finish), then I can send you the price list. Q: What payment terms you can deal with? A: Mostly we deal with TT terms and L/C,for L/C we need to know which bank to open the L/C and after checking the bank information to decide whether to accpet the L/C.If you have other preference, please negotiate
