904L Stainless Steel Coil
What is 904L Stainless Steel Coil?
904L stainless steel is an austenitic alloy known for its low carbon content and exceptional resistance to a wide variety of corrosive environments, particularly reducing acids like sulfuric acid. This high alloy steel is enhanced with copper, boosting its resilience against severe corrosive elements, and is known for its robustness against stress corrosion cracking and crevice corrosion. It stands out for its non-magnetic nature, outstanding formability, toughness, and exceptional weldability.
Rich in molybdenum and nickel, 904L is a premium grade that has traditionally been used in demanding applications, though its prevalence has somewhat declined with the advent of cost-effective alternatives like duplex stainless steel 2205. Despite this shift, 904L remains a preferred choice in environments where high corrosion resistance is paramount, surpassing standard austenitic grades like 304 and 316. Its applications span across various industries, including chemical and mineral processing, pollution control, and water treatment, valued more for its superior corrosion resistance than its mechanical properties.
Feature of 904L Stainless Steel Coil
Low Carbon Content:
904L stainless steel, with a carbon maximum of 0.020%, avoids carbide precipitation during welding and heat treatments, safeguarding against intergranular corrosion. This ensures the material's durability and superior surface finish after exposure to high temperatures.
Superior Corrosion Resistance:
The alloy's rich composition of chromium, nickel, molybdenum, and copper grants it exceptional resistance to corrosion, capable of withstanding harsh environments, including reducing acids like sulfuric and formic acids. It upholds its structural integrity across various corrosive conditions, outperforming many other stainless steels.
High Nickel Composition:
Its significant nickel content provides robust protection against pitting and crevice corrosion, particularly in chloride-rich environments, thereby offering an advantage in scenarios where standard stainless steels are inadequate.
Acidic Environment Suitability:
904L exhibits excellent performance in diverse concentrations of sulfuric acid and maintains resistance in up to 85% concentration of phosphoric acid. Its effectiveness, however, may vary with the purity of industrial phosphoric acid solutions.
Resistance to Hydrochloric Acid:
It demonstrates superior corrosion resistance in hydrochloric acid, effective up to a 1-2% concentration, surpassing the capabilities of traditional stainless steels in such acidic conditions.
Stress Corrosion Cracking Resistance:
The high nickel content also enhances its resistance to stress corrosion cracking, making it a reliable choice for applications in environments containing chloride, concentrated hydroxide solutions, and hydrogen sulfide, ideal for challenging industrial uses.
904L Stainless Steel Chemical Composition & Technical Data Sheet
904L Stainless Steel Standards Comparison
| STS | USA | UNS | CHINA | EURONORM | RUSSIA | JAPANESE | |
| GRADE | AISI/ASTM | NO | GB | NO | NAME | GOST | JIS |
| 904L | 904L | N08904 | 00Cr20Ni25Mo4.5Cu | 1.4539 | X1NiCrMoCu25-20-5 | 06Х20Н25М6 | SUS 904L |
904L Stainless Steel Chemical Composition
| Grade | Standard | Chemical Composition(%) | ||||||||
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu | ||
| 904L | ASTM A240 | ≤0.02 | ≤1.00 | ≤2.00 | ≤0.045 | ≤0.035 | 19.00~23.00 | 23.00~28.00 | 4.00-5.00 | 1.00-2.00 |
904L Stainless Steel Mechanical Properties
| Grade | AISI/ASTM | Tensile Test | Hardness Test | |||
| 0.2% Y.S(Mpa) | T.S(Mpa) | Elongation(%) | Hardness | HRB | ||
| 904L | ASTM A240 | ≥220 | ≥490 | ≥35 | Annealed | 90 |
904L Stainless Steel Finish & Application
904L Stainless Steel Applications
The exceptional properties of 904L stainless steel make it a preferred choice across various critical sectors:
Seawater Cooling Equipment: Its excellent corrosion resistance makes it ideal for cooling systems in marine environments, preventing biofouling and corrosion.
Chemical Processing: It is extensively used in handling sulfuric, phosphoric, and acetic acids due to its superior resilience to harsh chemicals.
Heat Exchangers & Condenser Tubes: The alloy's outstanding heat resistance qualifies it for use in heat exchangers and condenser tubes, especially where resistance to chloride-induced corrosion is necessary.
Gas Washing Systems: Its corrosion resistance is beneficial in scrubbing systems that remove particulate matter and gases from industrial exhaust streams.
Control and Instrumentation: The material is reliable for instrumentation and control systems in harsh environments, ensuring long-term stability and accuracy.
Oil & Gas Industry: Its robustness makes it suitable for various applications in the oil and gas sector, where durability and corrosion resistance are paramount.
Pharmaceutical Production: The alloy's cleanliness and resistance to corrosion are essential for the stringent hygiene standards required in pharmaceutical manufacturing.
Electrostatic Precipitators: 904L stainless steel is used for wiring and components in electrostatic precipitators, which remove fine particles from flowing gas using induced electrostatic charge.
904L Stainless Steel Coil Package & Loading Details
Why Choose Us?
We are the cold-rolled stainless steel coil production base in China with 200,000 tons capacity annually.
1. Guaranteed Stock Availability: Experiencing stock shortages during crucial times can hinder your projects. Our robust inventory management ensures a consistent supply, ready to dispatch large quantities swiftly, keeping your operations smooth and uninterrupted.
2. Comprehensive Range of Specifications: Finding the exact stainless steel coil specifications can be challenging. We offer a diverse range of specs, ensuring you find precisely what your project demands, with the assurance of our commitment to meeting your specific needs.
3. Customized Material Processing: Custom processing needs can be demanding. Our advanced facilities provide tailored solutions, from precise dimension alterations to specific finish treatments, ensuring your requirements are met with utmost precision.
4. Accurate Shearing Services: Precision is key in stainless steel utilization, and our expert shearing services guarantee exactness in every cut, aligning perfectly with your specifications and quality expectations.
5. Cost-effectiveness is crucial in supplier selection. Our optimized procurement and cost-efficient processes ensure you receive not just premium-quality products but also the best prices, offering exceptional value for your investment.
904L Stainless Steel Coil FAQ
1. Can you provide custom 904L stainless steel?
Absolutely, we tailor 904L stainless steel to your needs, ensuring your specifications for thickness, width, and physical properties are met.
2. What's the delivery timeline?
Quick delivery for trial orders within a week, while regular orders range from 7-30 days.
3. How do you guarantee your 904L SS product quality?
Our 904L products undergo rigorous inspections during manufacturing, cutting, and packaging to ensure the highest quality. And 904L mill test certificate is also provided.
4. Can I get some 904L alloy samples?
We can provide 904L alloy samples for you to check the quality. Sample is free and you just pay the freight.
5. What is the difference between aisi 904l vs 316l?
The primary difference between 904L and 316L stainless steel is the composition and resultant properties of each alloy. 904L contains significantly more nickel and chromium than 316L, which greatly enhances its corrosion resistance. The inclusion of copper in 904L further improves its ability to withstand corrosive environments, particularly against sulfuric, phosphoric, acetic acids, and saline conditions.
While 904L offers superior corrosion resistance and durability, it also comes with a higher cost—generally, it's about 2-3 times pricier than 316L. Despite the initial expense, the long-term reliability and extended lifespan of 904L can offer greater overall value, making it a cost-effective solution for projects requiring a long service life in harsh environments.
6. Choosing a 904L Stainless Steel Supplier
Selecting a supplier for 904L stainless steel coils involves a series of steps to ensure quality and reliability:
Research Suppliers: Utilize online resources to identify reputable suppliers specializing in stainless steel, focusing on those with a strong industry presence and positive reviews.
Engage with Suppliers: Contact the suppliers to discuss their 904L stainless steel coil offerings, including specifications, pricing, and availability. Consider requesting samples for quality assessment.
Assess Credibility: Evaluate the suppliers' credibility by reviewing their business credentials, certifications, and customer feedback, ensuring they adhere to industry standards and best practices.
Compare Quotations: Solicit and compare quotes from various suppliers, clarifying your specific needs such as quantity, specifications, and delivery details to make an informed decision.
Verify Quality Assurance: Investigate the suppliers' quality control processes and request relevant test reports or certifications to confirm the coils meet your required standards.
Negotiate Terms: Discuss and negotiate key terms, including pricing, delivery, and payment conditions, ensuring they align with your requirements.
Order Placement: Finalize the purchase by confirming the order details, such as the coil specifications, quantities, and agreed terms.
Arrange Payment: Agree on a secure payment method that suits both parties, ensuring all financial terms are clear and documented.
Coordinate Shipping: Organize the logistics, including packaging, shipping, and customs clearance, to ensure the coils are delivered as expected.
Inspect Upon Arrival: Upon receiving the coils, inspect the shipment for quality and accuracy, addressing any discrepancies with the supplier immediately.
7. What is the 904L stainless steel price per kg?
Usually the approximate price is more than 8,500 US dollars/ton. The actual price will fluctuate based on exchange rates, market conditions, etc. For details, please contact us for a quote.
More information of 904L material, please kindly browse to our article: An In-Depth Examination Of 904L Stainless Steel, Properties And Applications
