| 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 unparalleled corrosion resistance. The 904L alloy (UNS N08904) is a super austenitic stainless steel, ideal for a multitude of process settings with moderate to high corrosion resistance. Its rich composition of high chromium, nickel, along with molybdenum and copper, guarantees remarkable resistance to corrosion. With a highly fortified chemistry (25% nickel and 4.5% molybdenum), 904L surpasses 316L and 317L molybdenum-reinforced stainless steels in resisting chloride stress corrosion cracking, pitting, and general corrosion. Initially engineered to endure dilute sulfuric acid conditions, 904L also remains resilient against most organic acids and various inorganic acids, including hot phosphoric acid. This alloy is effortlessly weldable and can be managed using standard shop fabrication methods.
At Daxun Stainless Steel, we ensure full traceability of each stainless steel coil via the ERP system, covering type, specification, and origin. We advocate and support industry anti-counterfeiting measures. Leveraging cutting-edge technology, we set industry benchmarks in precision and quality. We champion product lifecycle management, offering expert material selection and processing solutions pre-sale, rigorous monitoring during sales, and comprehensive after-sales service guarantees.
Quality, Delivery, Inspection
- Daxun conducts rigorous quality assurance tests including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These comprehensive tests ensure that our materials meet the required application standards.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface quality of our products. Our standard delivery window is 7-15 days, extending to 20 days for special size products.
Our delivery timelines are strictly adhered to as per our contractual agreements.
- We support customer third-party agencies conducting factory inspections.
- We offer free samples for customer testing.
- We support both on-site and video factory inspections.
Ordering Information
To place an order, please include the quantity, grade, type or category, API5L reference, thickness, width, length, and any specific requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Contact Daxun now for prompt email responses.
Jiangsu Daxun Alloy Co., Ltd.'s venture into the stainless steel industry commenced in 2003. With two decades of relentless innovation and expansion, Daxun proudly stands as a front-runner in China's stainless steel material production and processing sector.
For over 20 years, Daxun has been a formidable player in the global market. In 2022, international trade revenues surged past US$100 million, solidifying its position among China's elite stainless steel trade and processing enterprises. Daxun has built three robust export service bases within China and collaborates seamlessly with engineering firms, steel mills, and global trading entities to cater to international clientele. Our unwavering commitment to enhancing service capabilities ensures that we continuously broaden our reach in overseas markets.
Daxun International offers an unparalleled stainless steel chain supermarket service, boasting longstanding alliances with numerous premier steel mills worldwide. Our inventory includes 60,000 tons of standard stainless steel and 20,000 tons of specialized metals, such as duplex steel, nickel-based alloys, and heat-resistant steel. Daxun International guarantees authentic, high-quality materials, adhering strictly to industry standards in variety, specification, and delivery weight.
Equipped with a plethora of advanced steel processing machinery, Daxun houses a state-of-the-art physical and chemical testing center. Our comprehensive processing lines include cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, all designed to meet the highest precision and quality standards.
Daxun's expertise spans over 30 diverse industries, including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. By partnering with steel mills, research institutions, and other entities, we offer holistic services that encompass project design, material innovation, and optimizing processing and manufacturing workflows.
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?
- This grade of stainless steel, known as 904L, boasts a unique composition that includes minimal carbon and a high copper content, which significantly enhances its resistance to potent acids such as sulphuric acid. The elevated nickel concentration ensures superior resistance to stress corrosion cracking. Additionally, 904L demonstrates exceptional resilience against crevice corrosion and stress corrosion cracking, vulnerabilities that often compromise other steel types. This versatility allows it to excel in harsh environments, including warm waters and chloride exposure, making it suitable for both moderate and severe conditions.
- 904L stainless steel exhibits extraordinary heat resistance, capable of enduring temperatures up to 400°C. It is amenable to heat treatment within a temperature range of 1090 to 1175°C, followed by rapid cooling. This heat treatment process serves as an excellent method for hardening 904L steel, thereby enhancing its durability and performance.
- Due to its unique composition, 904L stainless steel is nonmagnetic. It offers exceptional weldability, formability, and toughness across a diverse array of conditions, ensuring reliable performance in various applications.
- 904L steel can be effortlessly welded using conventional methods, eliminating the need for any pre-heat or post-weld heat treatments, thereby streamlining the welding process.
What is 904L used for?
As previously mentioned, 904L stainless steel is prominently utilized in the construction of high-end watches. Its high purity and low sulfur content make it invaluable in industrial applications. Common uses of 904L include:
- Seawater cooling devices.
- Wiring in electrostatic filtration devices.
- Oil refinery components.
- Gas scrubbing plant parts.
- Machinery for pulp and paper processing.
- Components in machinery used for processing sulfuric, acetic, and phosphoric acids.
Fabrication Data
- Alloy 904L can be seamlessly welded and processed using standard shop fabrication practices, ensuring ease of manufacturing and consistency in quality.
Cold Forming
- 904L stainless steel is highly ductile and forms effortlessly. However, the addition of molybdenum and nitrogen necessitates the use of more robust processing equipment compared to standard 304/304L grades, ensuring precision and efficiency in forming.
Hot Forming
- Hot working procedures for 904L require temperatures between 1562°F and 2102°F (850-1150°C). Generally, hot working should be followed by a solution anneal and quench. For 904L, if hot forming concludes above 2012°F (1100°C) with immediate quenching, further heat treatment may be unnecessary. It is critical that the entire workpiece is quenched from temperatures exceeding 2012°F (1100°C). If partial heating or cooling occurs below 2012°F (1100°C), or if cooling is too slow, hot working must always be followed by solution annealing and quenching. Optimal solution annealing for 904L ranges from 1940°F to 2084°F (1060-1140°C).
Machining
- The cold work hardening rate of Alloy 904L makes it less machinable than other stainless steels like 410 and 304, necessitating specialized techniques for optimal machining.
Welding
- Alloy 904L is compatible with most traditional welding methods. Its uniform austenitic structure and balanced alloy composition ensure minimal segregation of elements such as molybdenum, chromium, and nickel during solidification post-welding. This reduces the risk of compromised corrosion resistance, making 904L ideal for critical applications. Typically, welding is performed with filler metals matching the base metal's composition, although welding without filler metals is also feasible.
- The recommended welding consumables for 904L include 20 25 CuL covered electrodes and 20 25 CuL wire, ensuring optimal welding performance and integrity.
What are the applications that 904L stainless steel coils can be used?
Thanks to its unparalleled corrosion resistance, the premium-grade 904L stainless steel coils from Jiangsu Daxun Alloy Co., Ltd. find extensive applications in a multitude of industries. Its versatility makes it an indispensable choice for various high-demand environments.
- Ideal for Petrochemical equipment and reactors, ensuring longevity and reliability even in the harshest conditions.
- Perfect for Heat exchangers, providing exceptional efficiency and durability.
- Essential in Power plant flue gas desulfurization devices, offering robustness and resistance to corrosive elements.
- Crucial for Organic acid treatment systems, designed to withstand aggressive chemical environments.
- Highly effective for Sea water heat exchangers, delivering superior performance against saline corrosion.
- Indispensable in Paper industry equipment, ensuring seamless and long-lasting operation.
- Vital for the Pharmaceutical industry and other chemical equipment, guaranteeing purity and resistance to contamination.
- Perfectly suited for Pressure vessels, providing unmatched strength and endurance.
- Ideal for Food equipment, ensuring hygienic and safe processing standards.
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