904L Stainless Steel Sheet Plate Ultra-Low-Carbon Alloy for
High-Performance Engineering
Stainless Steel Sheet Specifications
| Name | 904L stainless steel Plate |
| Our Grade | 200 Series: 201 202 300 Series: 301
304,304L,304H,309S,310S,314,316L,316Ti,316H,316LN,317L,321,329,347 400 Series:
409L,410,410S,416,420,430,431,436L.439,441,443,444,445,446 Super Stainless Steel:
904L,926,254SMO,654SMO,15-5PH,17-4PH,17-7PH.etc Nickel Alloy: C276, C22,G35,Alloy X,Monel 400,K500,Inconel
600,601,617,625,718,Incoloy 800,800H,800HT,825.etc |
| Technique | Hot Rolled, Cold Rolled,Forged |
| Standard | JIS, AISI, ASTM, DIN, TUV, BV, SUS, etc |
| Thickness | 0.1 – 80.0mm |
| Width range | 10mm – 2000mm |
| Length | Customized |
| Finish | 2B, BA, No.4, 8k, Brushed,Hairline,PVD Coating,Sandblasted |
| Service | Laser Cutting, Bending |
| Sample | Available |
904L Stainless Steel Sheet Plate Ultra-Low-Carbon Alloy for
High-Performance Engineering
Introduction
904L stainless steel is an austenitic, ultra-low-carbon alloy known
for its superior corrosion resistance and high-performance
properties. As one of the most widely used stainless steel grades
in industries requiring exceptional resistance to acids, chlorides,
and various corrosive environments, it finds application in diverse
engineering projects, particularly in the chemical, petrochemical,
and marine industries. This article provides a detailed overview of
the 904L stainless steel sheet and plate, covering its chemical
composition, mechanical properties, industry standards,
applications, and more.
Chemical Composition of 904L Stainless Steel
The chemical composition of 904L stainless steel plays a critical
role in its enhanced corrosion resistance and overall durability.
Below is the approximate chemical breakdown:
| Element | Composition (%) |
|---|
| Nickel (Ni) | 23.0 – 28.0 |
| Chromium (Cr) | 19.0 – 23.0 |
| Molybdenum (Mo) | 4.0 – 5.0 |
| Copper (Cu) | 1.0 – 2.0 |
| Iron (Fe) | Balance |
| Manganese (Mn) | 2.0 – 3.0 |
| Silicon (Si) | 0.5 |
| Carbon (C) | ≤ 0.02 |
| Phosphorus (P) | ≤ 0.045 |
| Sulfur (S) | ≤ 0.03 |
| Nitrogen (N) | 0.10 max |
Key Components and Their Functions:
Nickel (Ni): Provides excellent toughness, stability, and corrosion
resistance, especially in acidic environments.
Chromium (Cr): Enhances the alloy's oxidation and corrosion resistance,
contributing to its high performance in harsh environments.
Molybdenum (Mo): Increases the resistance to pitting and crevice corrosion,
particularly in chloride-containing environments.
Copper (Cu): Improves resistance to sulfuric acid and certain corrosive
environments.
The low carbon content (≤ 0.02%) is essential in preventing carbide
precipitation, which can affect the alloy's resistance to
intergranular corrosion.
Mechanical Properties of 904L Stainless Steel
The mechanical properties of 904L stainless steel are well-suited
for applications in high-stress, corrosive environments. These
properties ensure durability and longevity, even in extreme
conditions.
| Property | Value |
|---|
| Yield Strength | 200 MPa (min) |
| Tensile Strength | 500 – 700 MPa |
| Elongation | 40 – 50% |
| Hardness (Rockwell B) | 90-95 HB |
| Modulus of Elasticity | 200 GPa |
Additional Mechanical Considerations:
Ductility and Toughness: 904L maintains excellent ductility even at low temperatures,
making it suitable for cryogenic applications.
Workability: It is relatively easy to weld and form, though care must be taken
to avoid carbide precipitation during welding.
Fatigue Resistance: With its high tensile strength, 904L exhibits strong fatigue
resistance, which is crucial in structural applications subjected
to cyclical loading.
Industry Standards for 904L Stainless Steel
904L stainless steel adheres to various international standards and
certifications, ensuring its quality and suitability for
high-performance applications. Some of the key standards for 904L
include:
ASTM A240: Standard Specification for Chromium and Chromium-Nickel Stainless
Steel Plate, Sheet, and Strip for Pressure Vessels and for General
Applications.
ASTM A312: Standard Specification for Seamless and Welded Austenitic
Stainless Steel Pipes.
EN 10088-2: European Standard for Stainless Steels – Part 2: Technical
Delivery Conditions for Sheet/Plate and Strip.
DIN 1.4539: German Standard for Stainless Steel 904L.
These standards ensure that 904L stainless steel meets the required
quality and performance criteria for a wide range of applications.
Applications of 904L Stainless Steel
The exceptional corrosion resistance and mechanical properties of
904L make it a popular choice for several high-performance
engineering applications. It is commonly used in industries where
corrosion resistance to acids, chlorides, and other aggressive
chemicals is a priority.
Key Applications:
Chemical Processing:
904L is widely used in chemical reactors, heat exchangers, and
storage tanks where resistance to sulfuric acid, phosphoric acid,
and other aggressive chemicals is needed.
Petrochemical Industry:
Marine and Offshore:
Ideal for marine environments, 904L is used in seawater
desalination plants, shipbuilding, and offshore oil and gas
platforms.
Pharmaceutical Manufacturing:
Food and Beverage:
Aerospace and High-Temperature Applications:
Other Stainless Steel Products
At our facility, we offer a wide range of stainless steel products
in addition to 904L stainless steel sheet and plate. These include:
Stainless Steel Pipes and Tubes: Available in various grades, including 304, 316, and 904L.
Stainless Steel Bars and Rods: Ideal for machining and structural applications.
Stainless Steel Coils: Suitable for both commercial and industrial use.
Stainless Steel Fittings: Designed for seamless integration into piping systems.
For more information or to inquire about specific requirements,
feel free to contact us.
Packaging and Shipping of 904L Stainless Steel
We take utmost care in packaging and shipping our 904L stainless
steel products to ensure that they arrive safely and in perfect
condition.
Packaging:
Standard Packaging: Our stainless steel sheets and plates are typically wrapped in
protective plastic film and strapped securely for safe
transportation.
Customized Packaging: For international shipments, we offer wooden crates or pallets to
prevent any damage during transit.
Marking: Each item is clearly labeled with batch number, weight, and
dimensional information for easy identification.
Shipping:
Frequently Asked Questions (FAQ)
1. What is the difference between 904L and 316L stainless steel?
904L contains higher amounts of nickel and molybdenum than 316L,
providing superior resistance to chloride-induced corrosion. It is
better suited for highly corrosive environments, particularly in
industries like chemical processing and marine.
2. Is 904L stainless steel weldable?
Yes, 904L stainless steel is highly weldable using common welding
techniques, such as TIG, MIG, and plasma arc welding. However, care
should be taken to avoid overheating to preserve its corrosion
resistance.
3. Can 904L stainless steel be heat treated?
4. Is 904L stainless steel suitable for cryogenic applications?
5. How should 904L stainless steel be cleaned and maintained?
Regular cleaning with mild soap, water, and a soft cloth is
recommended. For more aggressive stains or corrosion, a diluted
acid wash may be used, but caution should be exercised to avoid
surface damage.
6. How can I order 904L stainless steel?
Conclusion
904L stainless steel sheet and plate offer unmatched resistance to
corrosion, making it an ideal choice for demanding engineering
applications in various industries. With its excellent mechanical
properties, adherence to international standards, and diverse range
of uses, it continues to be a preferred material for
high-performance environments. Whether you're working in chemical
processing, marine applications, or high-temperature industries,
904L stainless steel provides the reliability and durability you
need.
For more details or to make an inquiry, please contact us directly.
