| 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 Leader in Stainless Steel Coil Fabrication Services
Type 904L is a high-alloy austenitic stainless steel celebrated for its exceptional corrosion resistance. Known as 904L alloy (UNS N08904), this super austenitic steel is versatile, thriving in various process environments with moderate to high corrosion resilience. Its unique blend of high chromium and nickel content, along with molybdenum and copper, guarantees superior corrosion resistance. Boasting a highly alloyed composition (25% nickel and 4.5% molybdenum), 904L outperforms 316L and 317L molybdenum-enhanced stainless steels in resisting chloride stress corrosion cracking, pitting, and general corrosion. Originally engineered to endure dilute sulfuric acid conditions, 904L also resists most organic and inorganic acids, including hot phosphoric acid. Easily weldable, 904L alloy can be seamlessly handled using conventional shop fabrication techniques.
Daxun Stainless Steel ensures full traceability of each stainless steel coil through its robust ERP system, covering type, specification, and origin, while actively promoting industry anti-counterfeiting measures. Leveraging cutting-edge technology for processing and customizing, Daxun sets the industry benchmark with unparalleled precision and quality. Our holistic service approach includes offering expert material selection and processing solutions pre-sale, strict quality monitoring during sales, and comprehensive after-sales service guarantees for a hassle-free experience.
Quality, Delivery, and Inspection
- Daxun conducts rigorous quality assurance tests to certify material suitability for any application. These include flattening tests, pitting and resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests, ensuring top-notch performance and reliability.
- Throughout the production process, we meticulously measure the product's diameter, thickness, and surface. Our standard delivery time ranges from 7-15 days; however, for certain special sizes, the delivery may extend up to 20 days.
We strictly adhere to the contractually agreed delivery times.
- We welcome customer-appointed third-party agencies to conduct factory inspections.
- We offer free samples for customers to test and evaluate our products.
- We support on-site or video factory inspections to ensure transparency.
Ordering Information
Purchase orders should detail quantity, grade, type or category, API5L reference, thickness, width, length, and any additional requirements related to chemical composition, mechanical properties, heat treatment, extra testing, manufacturing process, surface coating, or end finish. Contact Daxun now, and we will promptly respond to your email.
Since its inception in 2003, Daxun's stainless steel business has surged ahead, becoming a leader in China's stainless steel industry over the past two decades. With a dedicated focus on innovation and quality, Jiangsu Daxun Alloy Co., Ltd. has carved out a prominent position, renowned for its exceptional materials and cutting-edge processing solutions.
For over 20 years, Daxun has been a formidable player in the global market. In 2022, the company's export revenue soared beyond US$100 million, securing a top position among China's stainless steel trade and processing enterprises. With three robust export service bases in China, Daxun collaborates seamlessly with engineering firms, steel mills, and global trading entities to continually elevate service capabilities and penetrate international markets.
Daxun International offers a comprehensive stainless steel chain supermarket service, boasting enduring partnerships with renowned global steel mills. Housing 60,000 tons of standard stainless steel and 20,000 tons of specialized metals like duplex steel, nickel-based alloys, and heat-resistant steel, Daxun ensures impeccable quality and authenticity. Varieties, specifications, and delivery weights strictly adhere to the highest standards.
Equipped with state-of-the-art steel processing machinery and a professional physical and chemical testing center, Daxun excels with an array of processing lines, including cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying. This ensures precision and excellence in every product.
Daxun's services span over 30 industries, from automobiles and home appliances to elevators, new energy solutions, vacuum semiconductors, food and beverage, bio-fermentation, petrochemicals, and energy equipment. Collaborating with steel mills and research institutions, Daxun provides a holistic service range-from project design and material development to processing and manufacturing process 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?
- This exceptional grade of stainless steel, 904L, boasts minimal carbon content and a high copper concentration, enhancing its resistance to potent acids such as sulfuric acid. The substantial nickel content grants superior resistance to stress corrosion cracking. Additionally, 904L exhibits exceptional resistance to crevice corrosion and stress corrosion cracking, which are common vulnerabilities in other steel variants. It's adaptable for use in a myriad of rigorous environments, including exposure to warm waters and chloride. Ideal for both moderate and aggressive conditions, 904L stands as a versatile and robust material.
- Renowned for its exceptional heat resistance, this stainless steel can endure temperatures soaring up to 400 degrees Celsius. It is amenable to heat treatment at temperatures between 1090 to 1175 degrees Celsius, followed by rapid cooling. Such heat treatment is perfect for hardening 904L steel, ensuring it maintains its structural integrity under high thermal stress.
- Owing to its unique composition, this grade of steel is nonmagnetic. It boasts excellent weldability, formability, and toughness across various conditions, making it a highly adaptable material for diverse industrial applications.
- 904L steel exhibits exceptional weldability, compatible with any standard welding method. Notably, it requires no pre-heat or post-weld heat treatments, simplifying its welding process and enhancing its usability.
What is 904L used for?
As previously mentioned, 904L steel is a premium material used in the construction of high-end watches. Its industrial applications are vast, thanks to its high purity and low sulfur content. Some notable 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 machines used for processing sulfuric, acetic, and phosphoric acids.
Fabrication Data
- Alloy 904L is highly compatible with standard shop fabrication practices, offering ease of welding and processing.
Cold Forming
- 904L is remarkably ductile and forms with ease. However, due to the inclusion of molybdenum and nitrogen, more robust processing equipment may be required compared to standard 304/304L grades.
Hot Forming
- Hot working procedures for 904L involve temperatures between 1562 to 2102°F (850-1150°C). Typically, hot working should be followed by solution anneal and quenching. However, if hot forming is halted at a temperature above 2012°F (1100°C) and the material is quenched immediately, it may be used without additional heat treatment. It is crucial that the entire workpiece be quenched from temperatures above 2012°F (1100°C). Partial heating or cooling below this threshold, or slow cooling, necessitates subsequent solution anneal and quenching. For optimal results, 904L should undergo solution annealing at 1940-2084°F (1060-1140°C).
Machining
- The cold work hardening rate of Alloy 904L renders it less machinable compared to 410 and 304 stainless steels, requiring adjustments in machining approaches.
Welding
- Alloy 904L is compatible with most conventional welding techniques. Austenitic plate materials possess a uniform austenitic structure and a balanced distribution of alloying elements. During solidification post-welding, elements like molybdenum, chromium, and nickel may redistribute, potentially reducing corrosion resistance. However, 904L experiences minimal segregation and is usually welded with a filler metal of identical composition to the base metal, though it can also be welded without filler metal.
- For 904L welding, the recommended consumables are 20 25 CuL covered electrodes and 20 25 CuL wire.
What are the varied applications where 904L stainless steel coils can excel?
With unparalleled corrosion resistance, premium-grade 904L stainless steel coils from Jiangsu Daxun Alloy Co., Ltd. are remarkably versatile and find extensive applications in diverse industries.
- Petrochemical equipment, including reactors
- Efficient heat exchangers
- Durable power plant flue gas desulfurization devices
- Advanced organic acid treatment systems
- Reliable sea water heat exchangers
- High-performance paper industry equipment
- Robust pharmaceutical and other chemical processing equipment
- Heavy-duty pressure vessels
- Cutting-edge food processing equipment
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