| 904L Stainless Steel Coil Specification |
ASTM A240 / ASME SA240 |
| 904L Stainless Steel Coil Manufacturing Process |
Hot Rolled (HR) / Cold Rolled (CR) |
| 904L Stainless Steel Coil Grades |
201 / 304 / 304L/ 904L / 309S / 420 / 316 / 316L / 316Ti / 317L / 321 / 321H / 347 / 347H / 904L etc. |
| UNS No. - UNS S904L, UNS S31008, UNS S31600, UNS S31603, UNS S31603, UNS S31600, UNS S31703, UNS S32100, UNS S34700, UNS S34709, UNS S8904 |
| EN No. 1.4845, 1.4401, 1.4404, 1.4571, 1.4438, 1.4541, 1.4550, 1.4551, 1.4539 |
| 904L Stainless Steel Coil Thickness |
0.6 MM TO 16 MM THICKNESS |
| 904L Stainless Steel Coil Width |
1250 MM / 1500 MM / 2000 MM / 04 Feet / 05 Feet and Custom Cut Width as Per Requirement |
| 904L Stainless Steel Coil Length |
2400 MM / 2420 MM / 6000 MM / 08 Feet / 10 Feet / Coil Cut and Custom Cut Length as Per Requirement |
| 904L Stainless Steel Coil Surface Finish |
2B, 2D, BA, MATT, MATT PVC, No.4, No.5, SB, HR, No.8, Mirror, Hairline, Brush, Textured, Oil base wet Polished, Both sides Polished available. |
| 904L Stainless Steel Coil Coating |
PVC coating Normal / Laser, Film: 100 micrometer, Color: black/white. |
| 904L Stainless Steel Coil Other Testing |
NACE MR0175, Ultrasoung TEST, IGC TEST, Intergranular Corrrosion Test as per ASTM A262 Practice E, Charpy Impact Test, Macro, Grain Size, Hardness, etc. |
| 904L Stainless Steel CoilValue Added Services |
Gas Cutting / CNC Plasma Cutting / Profiling / Rolling / Bending / Sheet Metal Fabrication / Drill / Punch / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| 904L Stainless Steel Coil Packaging |
Loose / Carrate / Wooden Pallet / Wooden box-a / Plastic Cloth Wraps |
| 904L Stainless Steel Coil Shipment & Transportation |
By Road - Truck / Train Partial Load, Full Load, By Sea - Break-bulk Conventional Vessel / FCL (Full Container Load) / LCL (Less Container Load) / 20 Feet Container / 40 Feet Container / 45 Feet Container / High Cube Container / Open Top Container, By Air - Freighter Civil Passenger and Cargo Planes |
| 904L Stainless Steel Coil Material Test Certificate |
Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS, Bureau of Indian Standards BIS Approved ETC |
| Manufacturer |
POSCO, Aperam, Jindal Stainless, DKC Korea, Thyssenkrup, Baosteel, TISCO,Arcelor Mittal, VDM,Nippon Metal, Qingshan,Delong. |
| Shipping Port |
Shanghai/Ningbo port/Tianjin/Qindao |
Global Leader in Stainless Steel Coil Fabrication Services
Type 904L is a high-alloy austenitic stainless steel celebrated for its superior corrosion resistance. The 904L alloy (UNS N08904), a super austenitic stainless steel, is highly versatile, suitable for numerous processing environments, and offers moderate to high corrosion resistance. Its advanced composition, featuring high chromium and nickel content along with molybdenum and copper, guarantees excellent to outstanding corrosion resistance. Boasting a highly alloyed chemistry with 25% nickel and 4.5% molybdenum, 904L surpasses 316L and 317L molybdenum-reinforced stainless steels in chloride stress corrosion cracking, pitting, and general corrosion resistance. Initially designed to endure dilute sulfuric acid conditions, the 904L alloy also resists most organic and inorganic acids, including hot phosphoric acid. This alloy is highly weldable and can be easily manipulated with standard shop fabrication procedures.
At Daxun Stainless Steel, we ensure full traceability of each stainless steel coil via our ERP system. This includes details on type, specification, and origin, while vigorously advocating for industry anti-counterfeiting measures. Leveraging advanced technology for processing and customization, Daxun sets the industry benchmark with high precision and superior quality. Our comprehensive service approach includes product life cycle management, professional material selection, and processing solutions before sales, stringent monitoring during sales, and reliable service guarantees post-sales.
Uncompromising Quality, Timely Delivery, Rigorous Inspection
- Daxun conducts a series of stringent quality assurance tests, such as flattening tests, pitting and resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests. These rigorous evaluations ensure the material's suitability for its intended application.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface of each product. Our standard delivery time ranges from 7 to 15 days. However, for special size products, the delivery time may extend up to 20 days.
Our Delivery Time Strictly Adheres to the Contract
- We Welcome Customer-Supported Third-Party Factory Inspections
- We Offer Free Sample Testing to Customers
- Support for On-Site or Video Factory Inspections
Comprehensive Ordering Information
Purchase orders should detail the quantity, grade, type or category, API5L reference, thickness, width, length, and any specific requirements pertaining to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Reach out to Daxun now, and we will respond to your inquiry promptly.
Embark on a journey through Daxun's illustrious stainless steel business, which commenced in 2003. Over two decades of dynamic evolution have positioned our stainless steel materials and processing operations at the pinnacle of China's industry, showcasing unparalleled expertise and innovation.
With a legacy of over 20 years in global trade, Daxun's prowess in overseas markets is unmatched. In 2022, we proudly surpassed US$100 million in export revenue, solidifying our status among the elite in China's stainless steel trade and processing sector. Our commitment to excellence is reflected in our three strategically established export service bases, crafted to enhance our service capabilities. Partnering with engineering firms, steel mills, and international trading entities, we continuously elevate our service standards and expand our global footprint.
Experience the exceptional offerings of Daxun International, your premier destination for stainless steel chain supermarket services. Our enduring collaborations with esteemed steel mills worldwide ensure a robust inventory of 60,000 tons of standard stainless steel and 20,000 tons of specialized metals, including duplex steel, nickel-based alloys, and heat-resistant steel. Renowned for quality and authenticity, our stainless steel materials strictly adhere to industry standards, ensuring reliability and excellence.
Daxun boasts an array of advanced steel processing equipment and a state-of-the-art physical and chemical testing center. Our comprehensive processing lines encompass cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, ensuring precision and quality in every operation.
Our extensive services span over 30 industries, including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. In collaboration with leading steel mills and research institutes, we deliver integrated solutions from project design and material development to process optimization, enhancing efficiency and innovation at every stage.
904L Stainless Steel Belt Chemical Composition
| Element |
% Present (in product form) |
| Carbon (C) |
0.02 |
| Silicon (Si) |
0.7 |
| Manganese (Mn) |
2 |
| Phosphorous (P) |
0.03 |
| Sulfur (S) |
0.01 |
| Chromium (Cr) |
19.00 - 21.00 |
| Nickel (Ni) |
24.00 - 26.00 |
| Nitrogen (N) |
0.15 |
| Molybdenum (Mo) |
4.00 - 5.00 |
| Copper (Cu) |
1.20 - 2.00 |
| Iron (Fe) |
Balance |
904L Stainless Steel Belt Mechanical Properties
| Yield Strength |
Ultimate Tensile |
Elongation |
Hardness |
| 0.2% Offset |
Strength |
in 2 in. |
| psi (min.) |
(MPa) |
psi (min.) |
(MPa) |
% (min.) |
(max.) |
| 31,000 |
220 |
71,000 |
490 |
36 |
70-90 Rockwell B |
904L Stainless Steel Belt Physical Properties
| Reference data on some physical properties |
| Density at 20°C kg/m3 |
8 |
| Thermal Conductivity W/m K at |
20°C |
12 |
| Modulus of Elasticity kN/mm2 at |
20°C |
195 |
| 200°C |
182 |
| 400°C |
166 |
| 500°C |
158 |
| Specific Thermal Capacity at 20°C J/kg K |
450 |
| Electrical Resistivity at 20°C mm2/m |
1 |
What are 904L's best qualities?
- ASTM B625 904L Stainless Steel stands out due to its remarkable composition. Featuring minimal carbon content and a high copper concentration, it delivers unparalleled resistance to potent acids such as sulphuric acid. The elevated nickel content offers exceptional protection against stress corrosion cracking. Furthermore, 904L displays extraordinary resilience to crevice corrosion and stress corrosion cracking, vulnerabilities that challenge other steel variations. This makes it ideal for diverse and demanding environments, including exposure to warm waters and chlorides. Whether in moderately or aggressively corrosive conditions, 904L proves its mettle.
- 904L stainless steel is engineered for extreme heat resistance, enduring temperatures up to 400 degrees Celsius. It undergoes heat treatment between 1090 and 1175 degrees Celsius followed by rapid cooling, a process optimal for hardening this grade of steel. This heat treatability ensures the steel's robustness and durability in various applications.
- With its unique composition, 904L steel is inherently nonmagnetic. It offers excellent weldability, formability, and toughness across a spectrum of applications, making it a versatile choice for demanding projects.
- 904L steel supports a wide range of welding methods without the necessity for pre-heating or post-weld heat treatments, simplifying fabrication processes and ensuring structural integrity.
What is 904L used for?
As previously highlighted, 904L stainless steel is renowned in horology for its application in watch construction, thanks to its purity and low sulfur content. In industrial environments, its utility spans multiple sectors. Some common applications include:
- Seawater cooling devices.
- Wiring in electrostatic filtration devices.
- Oil refinery components.
- Gas scrubbing plant parts.
- Machinery for pulp and paper processing.
- Parts in machines used in sulfuric, acetic, and phosphoric acid processing plants.
Fabrication Data
- Alloy 904L boasts ease of welding and processing with standard shop fabrication methods, providing flexibility and efficiency in manufacturing.
Cold Forming
- 904L exhibits high ductility and forms easily. However, its higher molybdenum and nitrogen content necessitates more powerful processing equipment compared to standard 304/304L grades, highlighting its robust nature.
Hot Forming
- Hot working of 904L stainless steel requires specific temperature ranges between 1562 and 2102°F (850-1150°C). Post hot working, solution annealing and quenching are generally advised. If hot forming ceases above 2012°F (1100°C) with immediate quenching, the material may be used without needing further heat treatment. Ensuring the entire workpiece is quenched from temperatures above 2012°F (1100°C) is crucial. If partial heating or slower cooling occurs below this temperature, a solution anneal and quench is imperative. Solution annealing for 904L should occur at 1940-2084°F (1060-1140°C).
Machining
- The machining of Alloy 904L is more challenging than 410 and 304 stainless steels due to its cold work hardening rate, but its superior properties often outweigh this complexity.
Welding
- Alloy 904L is compatible with most conventional welding techniques. Its austenitic structure ensures an even distribution of alloying elements such as molybdenum, chromium, and nickel, minimizing corrosion risks post-welding. The alloy typically uses filler metal of the same composition as the base material, though it can also be welded without filler material.
- For welding 904L, the recommended consumables are 20 25 CuL covered electrodes or 20 25 CuL wires, ensuring optimal performance and consistency.
What are the versatile applications for which 904L stainless steel coils can be utilized?
Thanks to its exceptional corrosion resistance, the premium-grade 904L stainless steel coils find extensive applications in the following areas:
- Petrochemical equipment, including reactors
- Highly efficient heat exchangers
- Flue gas desulfurization devices in power plants
- Organic acid treatment systems
- Durable sea water heat exchangers
- Equipment used in the paper industry
- Chemical and pharmaceutical industry equipment
- Robust pressure vessels
- Food processing and handling equipment
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