| 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. Your Trusted Supplier of 904L Stainless Steel Seamless Pipes. Contact Us for Premium ASME SA312 904L Stainless Steel Pipes.
904 alloy (N08904) stainless steel is a high-alloy austenitic product meticulously engineered to withstand severe corrosion, offering unparalleled corrosion resistance.
904L stainless steel is a non-stabilized austenitic stainless steel with a low carbon level. This high-alloy stainless steel is enhanced with copper, which significantly boosts its resistance to strong reducing acids, particularly sulfuric acid. Not only is it resistant to stress corrosion, cracking, and crevice corrosion, but it is also non-magnetic and boasts exceptional formability, toughness, and welding capabilities. The 904L grade is characterized by its high concentrations of costly elements like molybdenum and nickel.
904L grade stainless steel excels in hot seawater and chloride attack resistance. With a high nickel content, it offers superb stress corrosion cracking resistance. The addition of copper provides enhanced resistance to sulfuric acid and other reducing environments. The corrosion resistance of 904L falls between that of super austenitic steels with 6% molybdenum and standard 316L austenitic steel. Although more susceptible than grades 304L and 310L, which lack Mo, 904L attains top resistance to stress corrosion cracking in sensitive settings when treated with a solution following cold working.
Our forming capabilities are unmatched, featuring cutting-edge extrusion and cold working technology for tube and pipe manufacturing. We pride ourselves on housing one of the world's largest pilger mills and offering a unique hydroforming process for creating precision fittings.
As a vertically integrated manufacturer, Daxun provides a comprehensive one-stop-shop solution for all your needs. Whether managing entire projects or handling specific machining jobs, our extensive capabilities include straightening, drilling, honing, trepanning, cutting, testing, boring, machining, laser welding, polishing, turning, and specialized services.
With state-of-the-art vertical and horizontal presses boasting capacities ranging from 12,000 to an impressive 35,000 tons, Jiangsu Daxun Alloy Co., Ltd. stands unrivaled 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 unparalleled quality and reliability for 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 steelstube 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 steelstube:
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 steels tube boasts excellent resistance to warm seawater and chloride attack. Its high resistance to stress corrosion cracking is attributed to the significant nickel content. Additionally, the inclusion of copper enhances its resistance to sulfuric acid and other reducing agents, even in aggressive and mild conditions.
The corrosion resistance of grade 904L occupies a middle ground between super austenitic grades with 6% molybdenum and standard 316L austenitic grades. However, grade 904L is less resistant than grades 304L and 310L, which lack molybdenum. Post cold-working solution treatment is essential to maximize stress corrosion cracking resistance under critical conditions.
Grade 904L stainless steels exhibit good oxidation resistance. However, their structural stability declines at elevated temperatures, particularly above 400°C.
Grade 904L stainless steels can undergo solution heat treatment between 1090 to 1175°C, followed by rapid cooling. This thermal treatment is effective for hardening the alloy.
Welding grade 904L stainless steels can be done using all conventional methods. This grade does not necessitate pre-heat or post-weld heat treatments. However, it may be susceptible to hot cracking in constrained weldments, and 904L-specific electrodes and rods should be used as per AS 1554.6.
Grade 904L stainless steels are high-purity, low-sulfur alloys that can be machined using standard methods. They can be easily bent to small radii under cold conditions. While subsequent annealing is generally unnecessary, it is advisable when fabrication occurs under severe stress corrosion cracking conditions.
Major applications of grade 904L stainless steels tube include:
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