| 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: Your source for 904L Stainless Steel Seamless Pipe. Contact us now for ASME SA312 904L Stainless Steel Pipe.
The 904 Alloy (N08904) stainless steel is a high-alloy austenitic marvel engineered to withstand severe corrosion, boasting exceptional corrosion resistance.
904L stainless steel is a non-stabilized austenitic alloy with a low carbon content. This high-alloy steel, enriched with copper, excels in resisting strong reducing acids, such as sulfuric acid. It is impervious to stress corrosion cracking and crevice corrosion, showcasing non-magnetic properties and superior formability, toughness, and welding capabilities. The 904L grade includes high concentrations of premium elements like molybdenum and nickel.
904L grade stainless steel boasts remarkable resistance to hot seawater and chloride attacks. Its high nickel content fortifies it against stress corrosion cracking. Copper addition enhances its resilience to sulfuric acid and other reducing agents in both harsh and mild environments. The corrosion resistance of 904L lies between super austenitic steels with 6% molybdenum and typical 316L austenitic steel. Compared to 304L and 310L grades, which lack molybdenum, 904L offers superior resistance. To maximize its resistance to stress corrosion cracking in sensitive contexts, this grade requires solution treatment post-cold working.
Our forming capabilities are unmatched, featuring cutting-edge extrusion and cold working assets for tube and pipe manufacturing. We have one of the world's largest pilger mills and a unique hydroforming process for precision fittings.
As a vertically integrated manufacturer, Daxun provides a comprehensive one-stop-shop solution. From managing entire projects to handling specific machining tasks, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
Equipped with state-of-the-art vertical and horizontal presses ranging from 12,000 to an astounding 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. leads the industry in comprehensive pipe extrusion. This cutting-edge technology allows us to produce the longest lengths and largest diameter pipes on the market, ensuring unmatched quality and reliability for your 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 demonstrate outstanding resistance to warm seawater and chloride attacks. This high resistance to stress corrosion cracking is attributed to the significant nickel content in its composition. Additionally, the presence of copper enhances resistance to sulfuric acid and other reducing agents, making it effective in both harsh and mild environments.
The corrosion resistance of grade 904L is intermediate between super austenitic grades with 6% molybdenum content and standard 316L austenitic grades. Grade 904L is less resistant compared to grades 304L and 310L, which lack molybdenum. To maximize stress corrosion cracking resistance in critical environments, this steel grade must undergo solution treatment following cold working.
Grade 904L stainless steels offer commendable oxidation resistance. However, the structural stability of this grade degrades at elevated temperatures, particularly beyond 400°C.
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 optimal for hardening these grades.
Welding of grade 904L stainless steels can be executed using all conventional methods. This grade does not necessitate pre-heat or post-weld heat treatments. However, grade 904L can experience hot cracking in constrained weldments. For welding grade 904L steels, grade 904L electrodes and rods compliant with AS 1554.6 are utilized.
Grade 904L stainless steel tubes are high purity steels with minimal sulfur content. They are easily machined using standard methods and can be readily bent to a small radius under cold conditions. Subsequent annealing is generally not required unless the fabrication is performed under severe stress corrosion cracking conditions.
Some of the major applications of grade 904L stainless steel tubes include:
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