| 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 superior corrosion resistance. Known as UNS N08904, this super austenitic stainless steel excels in various process settings with its moderate to high corrosion resistance. The alloy's high chromium and nickel content, combined with molybdenum and copper, ensures exceptional resistance to stress corrosion cracking, pitting, and general corrosion, outperforming 316L and 317L stainless steels. Originally designed to resist dilute sulfuric acid, the 904L alloy is also highly resistant to most organic and inorganic acids, including hot phosphoric acid. Easy to weld and fabricate, 904L is a versatile material for diverse applications.
Daxun Stainless Steel ensures full traceability of each stainless steel coil through its ERP system, detailing type, specification, and origin. As a technology-driven company, we lead the industry in processing and customization with unmatched precision and quality. Our comprehensive service model includes product life cycle management, offering expert material selection and processing solutions pre-sale, rigorous monitoring during sales, and outstanding after-sales service guarantees. We also advocate and support anti-counterfeiting initiatives within the industry.
Quality, delivery, inspection
- Daxun conducts extensive quality assurance tests to ensure material suitability for required applications. These include flattening tests, pitting and resistance tests, mechanical tests, hardness tests, positive material identification, and expansion tests.
- We meticulously measure the diameter, thickness, and surface of each product during production. Our standard delivery time is 7-15 days, with special size products extending to 20 days.
Our delivery schedules strictly adhere to contractual agreements.
- We support inspections by customer-designated third-party agencies.
- Free sample provision for customer testing.
- Support for on-site or video factory inspections.
Ordering Information
Purchase orders should specify quantity, grade, type or category, API5L reference, thickness, width, length, and any applicable additional requirements regarding chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Contact Daxun today, and we will respond to your email promptly.
Since its inception in 2003, Daxun's stainless steel business has surged ahead, establishing itself as a leader in China's stainless steel industry over the past 20 years. With relentless innovation and quality, we have consistently pushed boundaries and set new benchmarks.
Daxun's foray into the global market spans over two decades. In 2022, our export revenue surpassed an impressive US$100 million, positioning us among the elite stainless steel trade and processing companies in China. We have fortified our presence with three export service bases across China. Through strategic partnerships with engineering companies, steel mills, and international trading firms, we are enhancing our service capabilities and expanding our global footprint.
Daxun International offers comprehensive stainless steel chain supermarket services and is in long-term collaboration with numerous renowned steel mills worldwide. Our inventory includes 60,000 tons of standard stainless steel and 20,000 tons of specialty metals such as duplex steel, nickel-based alloys, and heat-resistant steel. We guarantee the authenticity and superior quality of our materials, strictly adhering to all specifications and delivery requirements.
Our state-of-the-art facilities boast an array of steel processing equipment and a dedicated physical and chemical testing center. Our processing lines include cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, ensuring precision and excellence in every product.
We cater to over 30 industries, such as automobiles, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, and petrochemicals. By partnering with steel mills, research institutions, and other entities, we deliver integrated services encompassing project design, material development, and process optimization for manufacturing.
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?
- The 904L grade of stainless steel is distinguished by its low carbon content and high copper concentration, enhancing its resistance to potent acids, including sulfuric acid. With a high nickel content, it demonstrates formidable resistance to stress corrosion cracking and crevice corrosion, outperforming other steel types. This makes 904L ideal for use in diverse demanding environments such as warm waters and exposure to chlorides, suitable for both moderate and highly aggressive conditions.
- 904L stainless steel exhibits exceptional heat resistance, enduring temperatures up to 400 degrees Celsius. Its heat treatment ranges between 1090 to 1175 degrees Celsius, followed by rapid cooling, making it an excellent choice for hardening processes.
- Due to its unique composition, 904L stainless steel is nonmagnetic and boasts excellent weldability, formability, and toughness across various conditions.
- 904L steel can be efficiently welded using any standard method, eliminating the need for pre-heat or post-weld heat treatments.
What is 904L used for?
As previously mentioned, 904L stainless steel is utilized in watchmaking due to its high purity and low sulfur content. Its applications extend to several industrial settings, including:
- Seawater cooling devices.
- Wiring in electrostatic filtration devices.
- Oil refinery components.
- Gas scrubbing plant parts.
- Machinery for pulp and paper processing.
- Parts in machinery involved in sulfuric, acetic, and phosphoric acid processing plants.
Fabrication Data
- Alloy 904L demonstrates excellent weldability and can be processed using standard shop fabrication techniques.
Cold Forming
- 904L stainless steel is highly ductile and easily formable. The presence of molybdenum and nitrogen may necessitate more robust 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). Generally, hot working should be followed by solution annealing and quenching. However, if the hot forming ends at temperatures above 2012°F (1100°C) and is immediately quenched, further heat treatment may be unnecessary. It is crucial that the entire workpiece cool from temperatures above 2012°F (1100°C). If partial heating or cooling occurs below this temperature, solution annealing and quenching are necessary. 904L should be solution annealed at 1940-2084°F (1060-1140°C).
Machining
- The cold work hardening rate of Alloy 904L makes it less machinable than 410 and 304 stainless steels.
Welding
- Alloy 904L is compatible with most conventional welding methods. Its austenitic structure ensures a uniform distribution of alloying elements. During welding, elements like molybdenum, chromium, and nickel may redistribute, potentially reducing corrosion resistance. However, this segregation is minimal in 904L, often welded with filler metal matching the base metal, though welding without filler metal is also feasible.
- The welding consumables for 904L are 20 25 CuL covered electrodes and 20 25 CuL wire.
What are the applications that 904L stainless steel coils can be used?
Thanks to its unparalleled corrosion resistance and superior quality, grade 904L stainless steel coils from Jiangsu Daxun Alloy Co., Ltd. are your go-to solution for a multitude of critical and demanding applications.
- Ideal for use in Petrochemical equipment and reactors, ensuring longevity and efficiency.
- Perfect for Heat exchangers, delivering reliable performance in extreme conditions.
- Essential for Power plant flue gas desulfurization devices, enhancing operational reliability.
- Optimal for Organic acid treatment systems, providing excellent durability and resistance.
- Superior choice for Sea water heat exchangers, offering unmatched resistance to corrosive marine environments.
- Highly suitable for Paper industry equipment, ensuring durability and operational efficiency.
- A prime choice for the Pharmaceutical industry and other chemical equipment, ensuring safe and efficient processes.
- Ideal for Pressure vessels, providing robust and long-lasting solutions.
- Perfect for Food equipment, ensuring hygiene and safety standards are met with excellence.
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