| 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 |
Your Global Leader in Stainless Steel Coil Fabrication Services
Type 904L: A high alloy austenitic stainless steel, 904L (UNS N08904), is celebrated for its premier corrosion resistance. This super austenitic stainless steel thrives in diverse process environments, delivering moderate to high corrosion resistance. A remarkable blend of high chromium, nickel, molybdenum, and copper ensures superior corrosion protection. With its robust alloy composition (25% nickel and 4.5% molybdenum), 904L surpasses 316L and 317L molybdenum-enhanced stainless steels in resisting chloride stress corrosion cracking, pitting, and general corrosion. Engineered to endure dilute sulfuric acid, it also withstands most organic and inorganic acids, including hot phosphoric acid. Easily weldable, 904L is manageable with conventional shop fabrication techniques.
At Daxun Stainless Steel, traceability and authenticity are paramount. Our ERP system tracks each stainless steel coil's type, specification, and origin, championing industry anti-counterfeiting measures. Leveraging advanced technology, we set the industry benchmark for precision and quality. Our comprehensive service includes pre-sale material selection and processing solutions, meticulous sales monitoring, and post-sale service guarantees, promoting product life cycle management.
Unwavering Commitment to Quality, Timely Delivery, and Rigorous Inspection
- Daxun conducts an array of quality assurance tests, including flattening, pitting resistance, mechanical, hardness, material positive identification, and expansion tests. These rigorous evaluations ensure our materials meet the specific requirements for their intended applications.
- Throughout production, we meticulously measure product diameter, thickness, and surface. Standard delivery time ranges from 7-15 days, with an extension to 20 days for special size products.
We adhere strictly to the contract for delivery times.
- We Support Customer Third-Party Inspections at Our Factory
- We Offer Free Samples for Customer Testing
- We Facilitate On-Site or Video Factory Inspections
Comprehensive Ordering Information
Your purchase orders should detail quantity, grade, type or category, API5L reference, thickness, width, length, and any additional requirements regarding chemical composition, mechanical properties, heat treatment, additional testing, manufacturing process, surface coating, or end finish. Reach out to Daxun now, and we will promptly respond to your inquiry.
Daxun's illustrious journey in the stainless steel industry began in 2003. Over the past two decades, we have risen to the pinnacle of China's stainless steel sector, crafting materials and processing solutions that set industry benchmarks.
With over 20 years of dedicated international business, Daxun's export revenue soared beyond US$100 million in 2022, placing us among China's elite in stainless steel trade and processing. Our strategic establishment of three export service bases in China, in collaboration with leading engineering firms, steel mills, and global trading companies, amplifies our reach. We are steadfast in enhancing our service prowess and expanding our footprint in overseas markets.
Daxun International offers unparalleled stainless steel chain supermarket services, backed by long-standing partnerships with renowned steel mills worldwide. Boasting a robust inventory of 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, our materials promise unmatched reliability and authenticity. Every variety, specification, and delivery weight adheres strictly to industry standards.
Daxun is equipped with state-of-the-art steel processing machinery, a sophisticated physical and chemical testing center, and comprehensive processing lines. Our capabilities encompass cutting, grinding, forming, beveling, welding, heat treatment, machining, and spraying, ensuring precision and excellence in every piece of work.
Our services span over 30 industries, including automotive, home appliances, elevators, new energy, vacuum semiconductors, food and beverage/bio-fermentation, petrochemicals, and energy equipment. By partnering with leading steel mills, research institutes, and other key entities, we deliver integrated solutions from project design and material development to advanced 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 is an exceptional grade known for its unique composition. It features low carbon content and a high concentration of copper, enhancing its resistance to strong acids like sulfuric acid. The substantial nickel content offers outstanding protection against stress corrosion cracking. Furthermore, 904L excels in resisting crevice corrosion, making it superior to other steel grades in aggressive environments. Its versatile nature allows it to thrive in various demanding conditions, including exposure to warm waters and chlorides, proving suitable for both moderate and extremely harsh environments.
- 904L stainless steel is renowned for its exceptional heat resistance, withstanding temperatures up to 400 degrees Celsius. It can be heat treated at temperatures between 1090 and 1175 degrees Celsius, followed by rapid cooling. This heat treatment process is highly effective for hardening 904L steel, ensuring its durability and performance in demanding applications.
- Due to its unique composition, 904L stainless steel is nonmagnetic. It is highly praised for its excellent weldability, formability, and toughness across a variety of applications, making it a versatile choice for numerous industries.
- 904L stainless steel can be welded using standard methods without requiring pre-heat or post-weld heat treatments, making it highly convenient for fabricators.
What is 904L used for?
904L stainless steel is utilized in a wide range of applications due to its high purity and low sulfur content. In addition to its use in watch construction, it is employed in various industrial settings for its superior qualities. Key applications include:
- Seawater cooling devices, ensuring long-lasting performance in harsh marine environments.
- Wiring in electrostatic filtration devices, offering reliable conductivity and durability.
- Components in oil refineries, providing robust resistance to corrosion and wear.
- Parts for gas scrubbing plants, maintaining efficiency and reliability.
- Machinery used in pulp and paper processing, standing up to rigorous conditions.
- Components in sulfuric, acetic, and phosphoric acid processing plants, offering exceptional acid resistance.
Fabrication Data
- Alloy 904L can be efficiently welded and processed using standard shop fabrication methods, ensuring ease of use and versatility in various applications.
Cold Forming
- 904L stainless steel is highly ductile and easily formable. However, the addition of molybdenum and nitrogen may necessitate more powerful processing equipment compared to standard 304/304L grades, ensuring the material's integrity and performance.
Hot Forming
- Hot working procedures for 904L stainless steel require temperatures between 1562°F and 2102°F (850-1150°C). Typically, hot working should be followed by solution annealing and quenching. However, if hot forming ceases above 2012°F (1100°C) and the material is quenched immediately, further heat treatment may not be necessary. It is crucial to quench the entire workpiece from temperatures above 2012°F (1100°C). If partial heating or cooling falls below this temperature, or if cooling is too slow, solution annealing and quenching should follow. Solution annealing for 904L should be conducted at 1940-2084°F (1060-1140°C).
Machining
- The cold work hardening rate of Alloy 904L results in it being less machinable compared to 410 and 304 stainless steels. However, with proper techniques, it can be effectively machined for various applications.
Welding
- Alloy 904L is compatible with most conventional welding methods. It possesses a uniform austenitic structure with a balanced distribution of alloying elements. During solidification post-welding, elements like molybdenum, chromium, and nickel may redistribute, potentially reducing corrosion resistance. However, segregation is minimal in 904L, and it can be welded with or without filler metal of the same composition as the base metal.
- The recommended welding consumables for 904L are 20 25 CuL covered electrode and 20 25 CuL wire, ensuring optimal performance and durability.
What are the applications that 904L stainless steel coils can be used?
Thanks to its unparalleled corrosion resistance, the premium quality 904L stainless steel coils from Jiangsu Daxun Alloy Co., Ltd. are indispensable for a myriad of advanced applications.
- Essential for Petrochemical equipment and reactors, ensuring longevity and reliability.
- Critical component in Heat exchangers, enhancing efficiency and durability.
- Invaluable in Power plant flue gas desulfurization devices, combating corrosion and improving performance.
- Integral to Organic acid treatment systems, maintaining integrity and functionality.
- Perfect for Sea water heat exchangers, providing unmatched resistance to harsh marine environments.
- Ideal for Paper industry equipment, offering superior resistance to industrial chemicals.
- Highly suitable for Pharmaceutical industry and a variety of other chemical equipment, ensuring purity and safety.
- Reliable and robust for use in Pressure vessels, guaranteeing strength and longevity.
- Perfectly suited for Food equipment, ensuring hygiene and resistance to corrosion.
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