| 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, 904L Stainless Steel Seamless Pipe. Contact Us for Premium ASME SA312 904L Stainless Steel Pipe.
904 Alloy (N08904) stainless steel is a high-alloy austenitic product engineered to endure severe corrosion. It boasts exceptional corrosion resistance properties.
904L stainless steel is a non-stabilized, low-carbon austenitic stainless steel. This premium alloy includes copper, enhancing its resistance to strong reducing acids like sulfuric acid. It withstands stress corrosion, cracking, and crevice corrosion. Non-magnetic, it possesses remarkable formability, toughness, and welding capabilities. 904L grade features high molybdenum and nickel content.
904L grade stainless steel excels in resisting hot seawater and chloride attack. The high nickel content ensures outstanding resistance to stress corrosion cracking. Copper infusion bolsters resistance to sulfuric acid and other reducing agents in both aggressive and mild environments. Its corrosion resistance stands between super austenitic steels with 6% molybdenum and standard 316L austenitic steel. For optimal stress corrosion cracking resistance in sensitive conditions, post-cold working solution treatment is essential.
Our forming capabilities are unmatched, featuring state-of-the-art extrusion and cold working assets for superior tube and pipe production. Housing one of the world's largest pilger mills and employing a unique hydroforming process, we ensure precision fittings of the highest quality.
As a vertically integrated manufacturer, Daxun offers a comprehensive one-stop-shop solution. Whether overseeing an entire project or managing specific machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
With cutting-edge vertical and horizontal presses, ranging from 12,000 to a staggering 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. dominates the industry in pipe extrusion capabilities. This advanced technology allows us to produce the longest lengths and largest diameter pipes on the market, guaranteeing exceptional quality and reliability for even the most demanding applications.
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 |
The typical mechanical properties of grade 904L stainless steels are given 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 |
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 |
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 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 boast exceptional resistance to warm seawater and chloride assault. Their robust stress corrosion cracking resistance is attributed to the high nickel content in their composition. Additionally, the copper infusion in these grades enhances their resilience against sulfuric acid and various reducing agents in both severe and moderate environments.
The corrosion resistance of grade 904L lies between super austenitic grades with 6% molybdenum and standard 316L austenitic grades. This grade is less resistant compared to grades 304L and 310L, which lack molybdenum. To maximize stress corrosion cracking resistance in critical conditions, grade 904L must be solution treated following cold working.
Grade 904L stainless steels exhibit commendable oxidation resistance. However, their structural integrity diminishes at high temperatures, particularly beyond 400°C.
Grade 904L stainless steels can undergo solution heat treatment at temperatures ranging from 1090 to 1175°C, followed by rapid cooling. This thermal treatment is crucial for hardening these grades.
The welding of grade 904L stainless steels can be executed using all standard techniques. Pre-heat and post-weld heat treatments are unnecessary. However, grade 904L may experience hot cracking in constrained weldments. For welding, grade 904L electrodes and rods compliant with AS 1554.6 are recommended.
Grade 904L stainless steel tubes are characterized by their high purity and low sulfur content. They can be machined using conventional methods and can be easily bent to small radii in cold conditions. While post-fabrication annealing is typically not required, it is advisable in situations involving severe stress corrosion cracking.
Key applications of grade 904L stainless steel tubes include:
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