| 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 |
A Global Titan in Stainless Steel Coil Fabrication Services
Type 904L is a superior high-alloy austenitic stainless steel celebrated for its exceptional corrosion resistance. The 904L alloy (UNS N08904) boasts a highly specialized chemistry, comprising 25% nickel and 4.5% molybdenum, providing remarkable defense against chloride stress corrosion cracking, pitting, and extensive corrosion-outperforming 316L and 317L molybdenum-enhanced stainless steels. Initially engineered to endure dilute sulfuric acid, the 904L alloy is equally resilient against a broad spectrum of organic and inorganic acids, including aggressive hot phosphoric acid. Its remarkable composition ensures easy weldability and compatibility with standard shop fabrication methods, making it a versatile choice for diverse process environments.
Daxun Stainless Steel maintains impeccable traceability for each stainless steel coil via our advanced ERP system, detailing type, specification, and origin, while championing industry-wide anti-counterfeiting measures. Leveraging cutting-edge technology, we excel in precision processing and customization, setting the benchmark for high-quality standards in the industry. Our comprehensive service model includes pre-sale professional material selection and processing solutions, stringent sales monitoring, and dedicated post-sale support, embodying our commitment to product lifecycle management.
Commitment to Quality, Timely Delivery, Rigorous Inspection
- Daxun rigorously conducts an array of quality assurance tests including flattening, pitting and resistance, mechanical, hardness, material positive identification, and expansion tests. These meticulous evaluations ensure the material's suitability for its intended applications, guaranteeing superior performance and reliability.
- Throughout the production process, we meticulously measure the diameter, thickness, and surface quality of our products. Our standard delivery timeframe spans 7-15 days, while some special size orders may extend up to 20 days.
We strictly adhere to contractual delivery timelines.
- We welcome third-party agency inspections at our factory.
- Offering Free Samples for Customer Testing
- Supporting On-site and Video-based Factory Inspections
Ordering Information
Purchase orders should detail quantity, grade, type or category, API5L reference, thickness, width, length, and relevant attachments or additional requirements, such as chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish specifications. Connect with Daxun now for prompt email responses and dedicated service.
Since its inception in 2003, Daxun's stainless steel business has surged to the forefront of China's industry. Two decades of relentless growth have solidified our position as a leader in stainless steel materials and processing.
With over 20 years of international experience, Daxun's global business has flourished. In 2022, our export revenue surpassed US$100 million, ranking us among China's top stainless steel trade and processing companies. We have strategically established three export service bases within China and foster partnerships with engineering firms, steel producers, and global trading companies to better serve international markets. Our commitment to service excellence drives us to continuously enhance our capabilities and expand our global reach.
Daxun International offers unparalleled stainless steel chain supermarket services, maintaining long-term collaborations with numerous prominent steel mills worldwide. We manage an impressive 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. Our commitment to quality is unwavering, ensuring that all materials meet exacting standards for variety, specification, and delivery weight with absolute reliability and authenticity.
Daxun boasts an extensive array of steel processing equipment, complemented by a state-of-the-art physical and chemical testing center. Our advanced processing lines include cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying services, delivering comprehensive solutions to meet diverse industrial needs.
Serving over 30 industries such as automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment, Daxun excels through collaboration with steel mills and research institutions. We provide seamless services from project design and material development to the optimization of processing and manufacturing processes, ensuring superior quality and innovation.
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 premium grade of stainless steel boasts a remarkable low carbon content and a high copper concentration, elevating its resistance to potent acids like sulphuric acid. Its elevated nickel content significantly enhances its resistance to stress corrosion cracking. Furthermore, 904L stainless steel shows exceptional resistance to both crevice corrosion and stress corrosion cracking, outperforming many other steel varieties. Designed for versatility, this steel excels in rigorous environments such as warm waters and chloride exposure, making it ideal for both moderate and extreme conditions.
- 904L stainless steel excels in heat resistance, enduring temperatures up to a formidable 400 degrees Celsius. It is amenable to heat treatment within a range of 1090 to 1175 degrees Celsius, followed by rapid cooling. Such heat treatment processes are optimal for hardening 904L steel, ensuring its durability and strength.
- Due to its unique composition, this stainless steel is nonmagnetic. It offers outstanding weldability, formability, and toughness across a variety of applications, making it a versatile choice for numerous industrial needs.
- 904L steel can be effortlessly welded using any conventional method, eliminating the need for pre-heat or post-weld heat treatments.
What is 904L used for?
As previously mentioned, 904L steel is highly prized in watch construction for its stainless properties. In industrial applications, it is valued for its high purity and minimal sulfur content. Notable uses of 904L include:
- Seawater cooling devices.
- Wiring in electrostatic filtration devices.
- Components in oil refineries.
- Parts in gas scrubbing plants.
- Machinery used in pulp and paper processing.
- Components in sulfuric, acetic, and phosphoric acid processing machinery.
Fabrication Data
- Alloy 904L is highly amenable to welding and can be processed using standard shop fabrication techniques.
Cold Forming
- 904L stainless steel is exceptionally ductile and can be easily formed. However, the addition of molybdenum and nitrogen may necessitate the use of more robust processing equipment compared to standard 304/304L grades.
Hot Forming
- Hot working procedures for 904L require temperatures ranging from 1562 to 2102°F (850-1150°C). Typically, hot working should be followed by a solution anneal and quenching. However, for 904L, if hot forming ceases at temperatures above 2012°F (1100°C) and the material is quenched immediately, further heat treatment may not be necessary. It is crucial to ensure 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. The recommended solution annealing temperature for 904L is between 1940-2084°F (1060-1140°C).
Machining
- Alloy 904L's cold work hardening rate makes it less machinable compared to 410 and 304 stainless steels.
Welding
- Alloy 904L is compatible with most traditional welding methods. Its austenitic plate materials feature a uniform structure with an even distribution of alloying elements. Elements such as molybdenum, chromium, and nickel may redistribute during the solidification process post-welding, leading to segregations that can sometimes reduce corrosion resistance. However, this effect is less significant in 904L, which can be welded using filler metal that matches the base metal's composition, or even without any filler metal.
- For 904L welding, the recommended consumables include 20 25 CuL covered electrodes and 20 25 CuL wire.
What are the various applications for which the 904L stainless steel coils can be utilized?
Owing to their outstanding corrosion resistance, top-quality 904L stainless steel coils find extensive use in a multitude of applications, including those listed below.
- Petrochemical equipment, including reactors
- Advanced heat exchangers
- Flue gas desulfurization devices at power plants
- Comprehensive organic acid treatment systems
- Efficient sea water heat exchangers
- Equipment for the paper industry
- Pharmaceutical and other specialized chemical equipment
- Robust pressure vessels
- High-quality food processing equipment
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