| 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 renowned for its exceptional corrosion resistance. The 904L alloy (UNS N08904) is designed to offer superior resistance in various processing environments, thanks to its high chromium and nickel content, augmented by molybdenum and copper. These elements ensure the alloy's impressive resilience against chloride stress corrosion cracking, pitting, and general corrosion, surpassing 316L and 317L molybdenum-reinforced stainless steels. Initially developed to endure dilute sulfuric acid conditions, the 904L alloy also withstands most organic and inorganic acids, including hot phosphoric acid. With a highly alloyed chemistry of 25% nickel and 4.5% molybdenum, it offers exceptional weldability and can be processed using standard shop fabrication techniques.
Daxun Stainless Steel ensures comprehensive traceability of each stainless steel coil through its advanced ERP system, detailing type, specification, and origin. As a proponent of industry anti-counterfeiting measures, Daxun Stainless Steel leverages cutting-edge technology for processing and customization, setting the industry benchmark for precision and quality. Our service ethos encompasses holistic product life cycle management, offering expert material selection and processing solutions pre-sale, strict monitoring during sales, and a guarantee of worry-free service post-sale.
Quality, Delivery, Inspection
- Daxun conducts extensive quality assurance tests to ensure the suitability of materials for required applications. These tests include flattening test, pitting and resistance test, mechanical test, hardness test, material positive identification, and expansion test, among others. Each test is designed to uphold the highest standards of quality.
- During production, we meticulously measure the diameter, thickness, and surface of our products. Our standard delivery timeframe is 7-15 days, with an extension to 20 days for special size products, ensuring prompt and reliable service.
Our delivery time strictly adheres to the contractual agreement, ensuring timely fulfillment of orders.
- We support customer inspections by third-party agencies at our factory, ensuring transparency and trust in our processes.
- We offer free samples to customers for testing, providing an opportunity to evaluate our product quality firsthand.
- We facilitate on-site or video factory inspections, allowing customers to witness our manufacturing processes in action.
Ordering Information
Purchase orders should detail quantity, grade, type or category, API5L reference, thickness, width, length, and any special requirements related to chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Contact Daxun today, and we will respond to your inquiry promptly.
Daxun's stainless steel journey embarked in 2003. Over the past two decades, the company has witnessed rapid growth, establishing its stainless steel materials and processing business as a leader in China's industry.
With over 20 years of expertise in overseas markets, Daxun has demonstrated exceptional performance in global trade. In 2022, we surpassed export revenues of US$100 million, securing a top position among China's stainless steel trade and processing firms. Our strategic expansion includes three export service bases within China, collaborating with engineering firms, steel mills, and international trading companies to amplify our reach. By constantly enhancing our service capabilities and forming robust alliances, we continue to thrive in international markets.
Daxun International offers comprehensive stainless steel chain supermarket services, backed by long-term partnerships with renowned steel mills worldwide. Our extensive 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 prides itself on delivering materials of impeccable quality, adhering to stringent standards in varieties, specifications, and delivery weights.
Daxun is equipped with advanced steel processing machinery and a state-of-the-art physical and chemical testing center. Our facilities support a wide array of processing lines, including cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, enabling us to meet diverse industrial needs with precision.
Daxun's services span across 30+ industries, encompassing sectors such as automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, and petrochemicals. By partnering with steel mills, research institutes, and other entities, we offer integrated solutions from project design and material development to processing and manufacturing optimization.
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?
- 904L stainless steel boasts an impressively low carbon content and a high copper concentration, enhancing its resistance to potent acids such as sulfuric acid. The significant nickel content ensures robustness against stress corrosion cracking. Additionally, it showcases exceptional resistance to both crevice corrosion and stress corrosion cracking, vulnerabilities that plague other steel variations. This versatile material is ideal for challenging environments, including warm waters and chloride-rich conditions, making it suitable for both moderate and harsh applications.
- 904L stainless steel stands out for its exceptional heat resistance, enduring temperatures up to an astounding 400 degrees Celsius. It's heat treatable within the 1090 to 1175 degrees Celsius range, followed by a rapid cooling process. This heat treatment method is particularly effective for hardening 904L steel, enhancing its durability and performance.
- Due to its unique composition, 904L stainless steel is nonmagnetic. It offers excellent weldability, formability, and toughness across a wide range of conditions, making it a highly versatile choice for various applications.
- 904L steel can be seamlessly welded using conventional methods, eliminating the need for pre-heat or post-weld heat treatments, thus simplifying the welding process.
What is 904L used for?
As previously highlighted, 904L steel is a premium choice for high-end watch construction due to its superior purity and low sulfur content. Industrially, it is prized for its utility in diverse applications such as:
- 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 is remarkably easy to weld and process using standard shop fabrication techniques.
Cold Forming
- 904L stainless steel is notably ductile and easy to form. However, the presence of molybdenum and nitrogen necessitates the use of more powerful processing equipment compared to standard 304/304L grades.
Hot Forming
- Hot working procedures for 904L require temperatures between 1562 to 2102°F (850-1150°C). Typically, hot working should be followed by solution annealing and quenching. However, if hot forming stops above 2012°F (1100°C) and immediate quenching occurs, further heat treatment may be unnecessary. It is crucial to quench the entire workpiece from above 2012°F (1100°C). If partial heating or cooling occurs below 2012°F (1100°C), or cooling is too slow, follow hot working with solution annealing and quenching. For optimal results, solution anneal 904L at 1940-2084°F (1060-1140°C).
Machining
- The cold work hardening rate of Alloy 904L renders it less machinable than 410 and 304 stainless steels, requiring special attention during machining processes.
Welding
- Alloy 904L is compatible with most conventional welding methods. Its uniform austenitic structure and even distribution of alloying elements ensure minimal segregation, maintaining excellent corrosion resistance. While typically welded with a filler metal of the same composition as the base metal, it can also be welded without filler metal.
- For welding 904L, use 20 25 CuL covered electrodes and 20 25 CuL wire to ensure optimal weld quality and performance.
What applications can benefit from the superior properties of 904L stainless steel coils?
Thanks to their exceptional corrosion resistance, premium-grade 904L stainless steel coils find extensive application in a variety of demanding environments.
- Petrochemical equipment, reactors: Ensuring durability and safety in harsh chemical environments.
- Heat exchangers: Providing reliable performance in thermal management systems.
- Power plant flue gas desulfurization devices: Contributing to cleaner energy production.
- Organic acid treatment systems: Offering robust resistance to corrosive substances.
- Sea water heat exchangers: Delivering outstanding endurance in marine applications.
- Paper industry equipment: Enhancing longevity and productivity in paper manufacturing.
- Pharmaceutical industry and other chemical equipment: Ensuring purity and reliability in sensitive processes.
- Pressure vessels: Providing safety and resilience under high-pressure conditions.
- Food equipment: Maintaining hygiene and integrity in food processing applications.
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