Basic Info.
Model NO.
904L Stainless Steel Tube
Type
Stainless Steel Pipes
Standard
ASTM, AISI, GB, JIS, EN
Certification
ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
Surface Treatment
Pickling
Surface
Pickling, Polishing, Ba
Delivery State
Solution Annealing
Transport Package
Wooden Box + Strapping
Specification
OD 6.35mm-OD 1219mm
Product Description
| 904L Stainless Steel Seamless Pipes Standards | ASTM A213, ASTM A249, ASTM A269, ASME SA213, ASME SA249, ASME SA269, EN 10216-5 TC1 / TC2, PED 97/23/EC, AD 2000, NACE MR0175/ISO 15156 |
| 904L Seamless Aerospace Tubing | AMS 5564, AMS 5565, AMS 5567, AMS 5569, AMS 5695 (Canceled & non-current specs include AMS-T-6845, Mil-T-6845, AMS-T-8504, Mil-T-8504, AMS-T-8506, Mil-T-8506) |
| WELDED & DRAWN 904L Stainless Steel Aerospace Tubing | AMS 5564, AMS 5565, AMS 5566, AMS 5567, AMS 5569 (Canceled & non-current specs include AMS-T-6845, Mil-T-6845, AMS-T-8504, Mil-T-8504, AMS-T-8506, Mil-T-8506) |
| ASTM A312 Stainless Steel Pipe Typical Manufacturing Specifications | ASTM A213,ASTM A312,ASME B36.19,AMS 5647,AMS 5566,AMS 5569,AMS 6845,BS 10216 Pt 5,ASTM A269,BS 3605 Pt 1,ASTM A632,NFA 49-117,NFA 49-217,Mil-T 8504,Mil-T 8606,or as per customer specifications. |
| Austenitic Stainless Steel 904L Pipes Seamless Tube Size | 3.35 mm OD To 630 mm OD |
| 904L Stainless Steel Welded Tube Size | 6.35 mm OD To 1219 mm OD |
| ASTM A312 TP 904L Stainless Steel Seamless Pipes Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| SS 904L Pipe Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
| Stainless Steel 904L Seamless Pipes Wall thickness | 0.020″ -0.220″, (special wall thicknesses available) |
| SS 904L tube Length | Single Random, Double Random, Standard & Cut length |
| Stainless Steel UNS S904L00 ERW Pipes Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Stainless Steel DIN 1.904L1 Pipes Form | Round Pipes/ Tubes, Square Pipes/ Tubes, Rectangular Pipe/ Tubes, Coiled Tubes, "U" Shape, Pan Cake Coils, Hydraulic Tubes, Straight or 'U' bent Tubes, Hollow, LSAW Tubes Etc. |
| 904L Stainless Steel Welded Pipe Type | Seamless, ERW, EFW, Welded, Fabricated |
| Electropolished | (EP) Electropolished for Ultra High Purity Systems |
| Non-Electropolished | (BA) Bright Annealed or (AP) Annealed & Pickled for High-Purity, (CFOS) Cleaned for Oxygen Grade Service or Corrosive Systems |
| I.D. Surface Finish Options | 5, 7 & 10 µin. Ra |
| 904L Stainless Steel Round Pipe JIS | 8A to 250A |
| 904L Stainless Steel Square Pipe Tolerances | In accordance with: ASTM: A269 & A632, JIS: G 3459 |
| 904L stainless steel tubing End | Plain End, Beveled End, Treaded, Ends are suitable for orbital welding |
| ASTM A312 TP 904L Stainless Steel Marking | All 904L Stainless Steel tubes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| 904L stainless steel tubing Application | Oil Tube, Gas Tube, Fluid Tube, Boiler and Heatexchanger |
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Specialize in | Stainless Steel 904L Capillary Tube & Other Odd Size |
| Stainless Steel 904L Heat Exchanger & Condenser Tubes |
| Stainless Steel 904L Hydraulic tubing with OD up to 50.8 mm (2.0 in.) are delivered in bright annealed condition |
| ASTM A312 TP904L tube with OD larger than 50.8 mm are supplied in the annealed and pickled condition, Or in polished condition |
| Marking & Traceability | Each Stainless Steel 904L Tubing is traceable to its producing mill and heat by an identification number etched within 24″ (610mm) of one end. |
| Test Certificate | Manufacturer Test Certificate according to EN 10204 3.1 B |
| Laboratory Test Certificate from Govt. Approved Lab. |
| Under Third Party Inspection |
| Testing & Inspection | Visual inspection • Surface roughness measurement • Helium-leak testing • Scanning Electron Microscopy (SEM) • Auger Electron Microscopy (AES) • Election Spectroscopy for Chemical Analysis (ESCA or XPS) • Particle testing • Moisture testing |
Global Leader in Stainless Steel Pipe and Tube Fabrication Services
904L Super Austenitic Pipe and Tubing ASTM A312 / A358. Supplier of 904L Stainless Steel Seamless Pipe. Contact us for ASME SA312 904L Stainless Steel Pipe.
904 alloy (N08904) stainless steel stands as a premium high-alloy austenitic product designed to conquer severe corrosion challenges, offering robust corrosion resistance.
904L stainless steel distinguishes itself as a non-stabilized austenitic stainless steel with a low carbon content. Enhanced with copper, it excels against strong reducing acids like sulfuric acid. This steel resists stress corrosion, cracking, and crevice corrosion while being non-magnetic, highly formable, tough, and weldable. The 904L grade boasts significant amounts of costly elements such as molybdenum and nickel.
904L grade stainless steel demonstrates exceptional resistance to hot seawater and chloride attacks. Its high nickel content ensures superior stress corrosion cracking resistance. Copper addition enhances resistance to sulfuric acid and various reducing agents in both aggressive and mild environments. The corrosion resistance of 904L stands between super austenitic steels with 6% molybdenum and standard 316L austenitic steel. While 904L surpasses grades 304L and 310L without Mo, achieving optimal stress corrosion cracking resistance in sensitive settings requires post-cold working solution treatment.
Characteristics of 904L Stainless Steel Pipe
- Exceptional Reliability and Stability
- Superior Corrosion Resistance
- Outstanding Formability and Weldability
- Excellent Oxidation Resistance
- Resilient Against Sulfuric, Phosphoric, and Acetic Acids
- Strong Resistance to Crevice Corrosion and Stress Corrosion Cracking
- Known as Super Austenitic Stainless Steel
Stainless Steel 904L Applications
- Aerospace Structures;
- Automobile Exhaust Pipes, Engine Parts;
- Medical Devices;
- Knives and Kitchen Utensils;
- Petrochemical Applications;
- Stainless Steel Cutlery, Kitchen Utensils;
- Manufacturing Flat Springs;
- Hand Tools;
- Bolts, Nuts, Springs, and Fasteners;
Stainless Steel Seamless TubeOur stainless steel seamless tubes are crafted from hollow sections via advanced piercing or hot extrusion processes. Ideal for large diameter-to-wall thickness ratios, they offer exceptional external dimensional tolerances.
Quality, Delivery, Inspection
- At Jiangsu Daxun Alloy Co., Ltd., our commitment to excellence is demonstrated through rigorous quality assurance tests including flattening, pitting and resistance tests, mechanical tests, hardness tests, material positive identification, and expansion tests. Every meticulous test ensures our materials meet your demanding applications.
- Throughout production, we precisely measure the diameter, thickness, and surface quality of our products. Standard delivery timelines range from 7 to 15 days. For special-sized products, the timeline may extend up to 20 days, ensuring every detail meets your exact specifications.
We strictly adhere to the delivery timelines outlined in our contracts, ensuring punctual and reliable service. - We welcome and support inspections by customer-authorized third-party agencies at our factory.
- We offer free samples for rigorous testing, allowing you to experience our superior quality firsthand.
- We offer both on-site and video factory inspection options, guaranteeing complete transparency and trust in our meticulous manufacturing processes.
Discover the unmatched stainless steel pipe manufacturing prowess of Daxun, setting industry standards with excellence.
Our forming capabilities are truly unparalleled, featuring state-of-the-art extrusion and cold working technologies for tube and pipe manufacturing. We house one of the world's largest pilger mills and utilize a distinctive hydroforming process for precision fittings.
Introducing Daxun's extraordinary pipe processing capabilities, where innovation meets precision.
As a vertically integrated powerhouse, Daxun offers an all-encompassing one-stop-shop solution. Whether managing entire projects or handling specific machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
Daxun: Your ultimate destination for superior, larger-scale pipe solutions.
Equipped with state-of-the-art vertical and horizontal presses with capacities ranging from 12,000 to an impressive 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. stands unmatched in the industry for its comprehensive pipe extrusion capabilities. This advanced technology enables us to produce the longest lengths and largest diameter pipes available on the market, ensuring unrivaled quality and reliability for the most demanding applications.
Jiangsu Daxun Alloy Co., Ltd. proudly serves the power generation sector, providing essential components such as ductwork, boiler tubes, main steam tubes, thermal reheat tubes, and flue gas desulfurization units. Our rigorously engineered products are crafted to meet the stringent demands of nuclear, coal-fired, renewable energy, and combined cycle power plants, ensuring peak performance and efficiency in every application.
All 904L type stainless steel supplied by Daxun Alloys meets the highest standard manufacturing criteria, including ASTM and EN. This remarkable stainless steel is non-magnetic under all conditions and boasts exceptional formability and welding characteristics. Its austenitic structure ensures unparalleled robustness, even at cryogenic temperatures. The high chromium content fosters a passive film, providing superior protection against corrosive environments. Compared to other molybdenum-containing stainless steels like 316L and 317L, 904L exhibits enhanced resistance to ferrite and sigma phase precipitation during cooling and welding. The low carbon content effectively eliminates the risk of intergranular corrosion during these processes. With a maximum service temperature of 450°C, our 904L pipe stock is meticulously identified under ASTM A312 UNS N08904, SB 677 UNS N08904, and Werkstoff No. 1.4539. We offer a wide range of high-quality products from reputable manufacturers, including 904L SS Seamless Pipe, ASTM B677 TP 904L SS Seamless Pipe, ASTM B674 TP 904L SS Pipe, SS 904L Welded Pipe, and 904L SS Pipe. Each pipe undergoes rigorous testing methods like hydro testing to ensure leak-free performance and adheres to a strict quality control process for the utmost quality assurance. For the best prices on SS 904L Round Pipe, SS 904L Square Pipe, ASTM A312 TP904L SS Capillary Tube, or ASTM A312 UNS N08904 Pipe, please email us for a detailed quote, inspection, and delivery schedule. Our high-quality SS TP 904L Tube, 904L Stainless Steel Tube, Stainless Steel 904L EFW Tube, and Stainless Steel 904L Welded Tube are available to customers in China and worldwide, including Europe, the UK, the USA, Canada, Asia, Dubai, Saudi Arabia, the Middle East, and Western Africa.
Composition
The table below provides the compositional ranges of grade 904L stainless steels:
Table 1.Composition ranges of grade 904L stainless steels
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
904L | min. max. | - 0.02 | - 2 | - 1 | - 0.045 | - 0.035 | 19 23 | 4 5 | 23 28 | 1 2 |
Mechanical Properties
The typical mechanical properties of grade 904L stainless steels are provided in the table below:
Table 2.Mechanical properties of grade 904L stainless steels
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness |
Rockwell B (HR B) | Brinell (HB) |
904L | 490 | 220 | 36 | 70-90 typical | 150 |
Physical Properties
The physical properties of grade 904L stainless steels tube are tabulated below:
Table 3.Typical physical properties of grade 904L stainless steels tube
Grade | Density
(kg/m3) | Elastic Modulus
(GPa) | Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity
(W/m.K) | Specific Heat 0-100°C
(J/kg.K) | Elec Resistivity
(nΩ.m) |
0-100°C | 0-315°C | 0-538°C | At 20°C | At 500°C |
904L | 7900 | 190 | 15 | - | - | 11.5 | - | 500 | 952 |
Grade Specification Comparison
The following table outlines the approximate grade comparisons of 904L stainless steels tube:
Table 4.Grade specifications ofgrade 904L stainless steels tube
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS |
BS | En | No | Name |
904L | N08904 | 904S13 | - | 1.4539 | X1NiCrMoCuN25-20-5 | 2562 | |
Grade 904L stainless steel tubes offer exceptional resistance to both warm seawater and chloride attack. The high nickel content in grade 904L provides robust protection against stress corrosion cracking. Additionally, the copper elements enhance resistance to sulfuric acid and other reducing agents, making it ideal for both aggressive and mild environments.
The corrosion resistance of grade 904L sits between the super austenitic grades, which contain 6% molybdenum, and the standard 316L austenitic grades. Compared to grades 304L and 310L, which lack molybdenum, grade 904L exhibits intermediate resistance. To optimize stress corrosion cracking resistance in critical conditions, this steel grade should undergo solution treatment following cold working.
Heat Resistance
Grade 904L stainless steel provides good oxidation resistance; however, its structural stability diminishes at high temperatures, especially above 400°C.
Heat Treatment
Grade 904L stainless steels can be solution heat-treated at temperatures ranging from 1090 to 1175°C, followed by rapid cooling. This thermal treatment is ideal for hardening these grades.
Welding
You can weld grade 904L stainless steels using all conventional methods without the need for pre-heat or post-weld heat treatments. Note that grade 904L is prone to hot cracking in constrained weldments, and therefore, grade 904L electrodes and rods should be used according to AS 1554.6 guidelines.
Fabrication
Grade 904L stainless steel tubes are high-purity steels with low sulfur content, making them easy to machine using standard methods. They can be bent to a small radius under cold conditions. While subsequent annealing is generally unnecessary, it should be conducted if fabrication involves severe stress corrosion cracking conditions.
Applications
Major applications of grade 904L stainless steel tubes include:
- Wiring in electrostatic precipitators
- Components in oil refineries
- Seawater cooling devices
- Gas scrubbing plants
- Pulp and paper processing industries
- Acetic, phosphoric, and sulfuric acid processing plants
Q1: What products can you offer?
A: We provide a comprehensive range of general steel types such as 310S, 316L, 304, 304L, 201, 904L, and 316H. Additionally, we offer duplex stainless steels like 2205, 2304, 2101, 2507, and high-nickel alloys including 800H and 600H.
Our inventory features a wide selection of 400 series and duplex stainless steels like 2205, 2304, 2101, 2507, and 904L. We also stock high-nickel alloys such as 800H and 600H.
Q2. Can you produce the products according to my own drawings?
Yes, we can manufacture products based on your drawings to meet your precise specifications.
Q3. How does your factory do regarding quality control?
Quality is our utmost priority. We rigorously uphold high-quality standards throughout every stage of the production process.
Q4. Can I request to change the form of packaging and transportation?
Yes, we can modify the packaging and transportation methods according to your request.
Please note that any additional costs incurred during this process will be borne by you.
Q5. How does your factory do regarding quality control?
Quality is our paramount concern. We meticulously uphold exceptional quality standards at every step, from initial production to final delivery.
Q6. How long is the delivery time?
A: Our standard delivery timeframe ranges from 7 to 20 working days post payment confirmation.
For urgent requirements, we offer expedited processing to align with your schedule.
Q7. What is your Payment?
A: For your ease, we provide 100% T/T advance or Western Union options for smaller transactions.
B: Opt for a 30% T/T deposit, with the remaining 70% payable before shipment.
C: For larger orders, we accept 100% Irrevocable LC at sight.
Q8: Can you make DDQ (Deep Drawing Quality)?
A: Absolutely, our premium material is ideal for crafting stainless steel pots, sinks, bowls, and more. Share your specific application, and we'll tailor the mechanical properties to perfectly suit your needs.
Q9: How to get a sample?
A: Enjoy complimentary samples for your evaluation and testing. If it's just a small piece, we might even cover the courier cost, depending on the circumstances.
Q10: Which countries have you exported to?
A: We have proudly exported our stainless steel material to countries including Vietnam, Thailand, Turkey, Russia, Morocco, South Korea, India, Pakistan, UAE, Ukraine, and many more.
Q11: How do I visit your company?
A: Fly into Guangzhou Baiyun International Airport, and we will be there to greet you and welcome you to our facility.
Address:
B108, No. 32-1, Chengnan Road, Xinwu District, Wuxi, Jiangsu, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Metallurgy, Mineral & Energy
Management System Certification:
ISO 9001, ISO 9000, ISO 14001, ISO 14000, ISO 20000, OHSAS/ OHSMS 18001, IATF16949, HSE, ISO 14064, QC 080000, GMP, BSCI, BRC, SA 8000, QHSE, HACCP, ISO 13485, EICC, ANSI/ESD, SEDEX, ISO 22000, AIB, WRAP, GAP, ASME, ISO 29001, HQE, IFS
Company Introduction:
Founded in 2003, Daxun Alloy is a leading global metal material manufacturer. Headquartered in Wuxi, China, the company has multiple production bases and sales offices around the world. Daxun Alloy focuses on the development, production and sales of various stainless steels, titanium alloys, high-temperature alloys, etc. For general industry, construction, aerospace, energy, chemical industry, medical and other fields.
China, Daxun Metal Group is a global vertically integrated metal material manufacturer and stockist. Daxun can provide finished products and customized full-process services and professional technical services. Currently, the group has 600 employees and covers a total area of 130, 000 square meters. Daxun has a standing inventory of 50, 000 tons of stainless steel, 5, 000 tons of nickel-based alloys, and 2, 000 tons of pure titanium and titanium alloys. The main product forms are metal plates, metal coils, metal pipes, and metal bars. The metal materials produced by Daxun are market leaders for marine, energy, military, general industrial and aerospace applications. In addition, the company also produces seamless pipes, plates, forgings and other metal materials for power generation and oil and gas applications; Commercial and military alloy products; And metal alloys and other metal products for the forging industry.
