| Customization: | Available |
|---|---|
| Type: | Stainless Steel Pipes |
| Standard: | ASTM, AISI, GB, JIS, EN |
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| 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 |
904L Super Austenitic Pipe and Tubing ASTM A312 / A358 Stainless Steel 904L Pipe Supplier. Contact us for 904L Stainless Steel Seamless Pipe in compliance with ASME SA312 standards. We are your trusted 904L Stainless Steel Pipe provider.
904 alloy (N08904) stainless steel is a high-alloy austenitic product engineered to endure severe corrosion. It showcases exceptional corrosion resistance.
904L stainless steel is a non-stabilized austenitic stainless steel characterized by a low carbon level. This high alloy contains copper, enhancing its resistance to strong reducing acids like sulfuric acid. 904L stainless steel also resists stress corrosion, cracking, and crevice corrosion. It is non-magnetic and boasts outstanding formability, toughness, and weldability. The grade contains high levels of costly elements, such as molybdenum and nickel, contributing to its superior performance.
904L grade stainless steel excels in hot seawater and chloride-rich environments. The high nickel content enhances its resistance to stress corrosion cracking. Copper addition improves resilience against sulfuric acid and other reducing agents, in diverse environments. The corrosion resistance of 904L grade steel surpasses standard 316L steel and aligns closely with super austenitic steels containing 6% molybdenum. To achieve peak resistance to stress corrosion cracking in sensitive settings, post-cold working solution treatment is essential.
Our forming capabilities are unrivaled, featuring state-of-the-art extrusion and cold working assets for tube and pipe manufacturing. We proudly operate one of the world's largest pilger mills and employ a unique hydroforming process for precision fittings, ensuring top-notch quality and precision.
As a vertically integrated manufacturer, Daxun provides a comprehensive one-stop-shop solution. Whether overseeing an entire project or executing specific machining jobs, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services, all designed to exceed your expectations.
Equipped with advanced vertical and horizontal presses with capacities ranging from 12,000 to an astounding 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. leads the industry in comprehensive pipe extrusion capabilities. Our cutting-edge technology allows us to produce the longest lengths and largest diameter pipes on the market, ensuring superior quality and reliability for your most demanding applications.
The table below details the compositional ranges of grade 904L stainless steels:
Table 1.Compositional 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 |
The table below outlines the typical mechanical properties of grade 904L stainless steels:
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 |
The physical properties of grade 904L stainless steels tube are summarized in the table below:
Table 3.Typical physical properties of grade 904L stainless steels tube
|
Grade |
Density |
Elastic Modulus |
Mean Co-eff of Thermal Expansion (µm/m/°C) |
Thermal Conductivity |
Specific Heat 0-100°C |
Elec Resistivity |
|||
|
0-100°C |
0-315°C |
0-538°C |
At 20°C |
At 500°C |
|||||
|
904L |
7900 |
190 |
15 |
- |
- |
11.5 |
- |
500 |
952 |
The following table presents 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 |
|
The Grade 904L stainless steel tube stands out with its remarkable resistance to warm seawater and chloride attacks. This exceptional resistance is attributed to the high nickel content in its composition, which also enhances its ability to withstand stress corrosion cracking. Additionally, the inclusion of copper bolsters its resilience against sulphuric acid and other reducing agents, making it ideal for both aggressive and mild conditions.
Grade 904L's corrosion resistance positions it between super austenitic grades with 6% molybdenum content and standard 316L austenitic grades. Although it is less resistant than the molybdenum-free grades 304L and 310L, solution treatment following cold working can maximize its stress corrosion cracking resistance, even in critical environments.
Grade 904L stainless steels are known for their commendable oxidation resistance. However, it's important to note that the structural stability of this grade deteriorates at high temperatures, especially beyond 400°C.
For Grade 904L stainless steels, solution heat treatment can be carried out at temperatures ranging from 1090 to 1175°C, followed by rapid cooling. This thermal treatment is effective for hardening these grades.
Grade 904L stainless steels can be welded using all conventional methods without the need for pre-heat and post-weld heat treatments. However, they can be prone to hot cracking in constrained weldments. Specialized electrodes and rods, compliant with AS 1554.6, are recommended for welding 904L steels.
Grade 904L stainless steel tubes are distinguished by their high purity and low *** content. They are easily machinable using standard methods and can be cold-bent to small radii. While annealing is typically not required, it should be considered when fabrication involves severe stress corrosion cracking conditions.
Grade 904L stainless steel tubes find extensive applications in various industries, including:
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