Customization: | Available |
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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 Call Us for ASME SA312 904L Stainless Steel Pipe
904 alloy (N08904) stainless steel is a high-alloy austenitic product renowned for its ability to endure harsh corrosion. It possesses exceptional corrosion resistance, making it ideal for challenging environments.
904L stainless steel is a non-stabilized austenitic stainless steel with a low carbon content. This high-alloy steel incorporates copper, enhancing its resistance to strong reducing acids such as sulfuric acid. Additionally, it resists stress corrosion, cracking, and crevice corrosion. 904L stainless steel is non-magnetic and boasts remarkable formability, toughness, and welding capabilities. The 904L grade contains significant amounts of costly elements like molybdenum and nickel, contributing to its superior properties.
904L grade stainless steel demonstrates exceptional resistance to hot seawater and chloride attack. Thanks to its high nickel content, this grade excels in resisting stress corrosion cracking. The addition of copper improves resistance to sulfuric acid and other reducing agents in both corrosive and mild environments. The corrosion resistance of 904L grade steel is superior to standard 316L austenitic steel and falls between super austenitic steels containing 6% molybdenum. To maximize resistance to stress corrosion cracking in sensitive settings, this grade requires solution treatment post-cold working.
Our forming capabilities set us apart, featuring cutting-edge extrusion and cold working technologies for tube and pipe fabrication. We boast one of the world's largest pilger mills and a unique hydroforming process for precision fittings, delivering excellence in every product.
As a vertically integrated manufacturer, Jiangsu Daxun Alloy Co., Ltd. offers a comprehensive one-stop-shop solution. From managing entire projects to handling specific machining jobs, our 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, Jiangsu Daxun Alloy Co., Ltd. stands unmatched with capacities ranging from 12,000 to an impressive 35,000 tons. Our advanced technology enables us to produce the longest lengths and largest diameter pipes on the market, ensuring exceptional 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 provide extraordinary resistance to warm seawater and chloride corrosion. Their superior stress corrosion cracking resistance is attributed to the high nickel content. Additionally, the incorporation of copper enhances resistance to sulfuric acid and various reducing agents, whether in aggressive or mild conditions.
The corrosion resistance of grade 904L sits between super austenitic grades with 6% molybdenum and standard 316L austenitic grades. It is less resistant compared to 304L and 310L grades, which are molybdenum-free. For optimal stress corrosion cracking resistance in critical environments, solution treatment is required after cold working.
Grade 904L stainless steel demonstrates good oxidation resistance. However, its structural stability tends to degrade at high temperatures, especially above 400°C.
Grade 904L stainless steel can be solution heat-treated at temperatures ranging from 1090 to 1175°C, followed by rapid cooling. This thermal treatment effectively hardens the material.
Grade 904L stainless steel can be welded using all conventional methods without the need for pre-heat or post-weld heat treatments. However, it is susceptible to hot cracking in constrained weldments. Use grade 904L electrodes and rods as specified by AS 1554.6 for best results.
Grade 904L stainless steel tubes are composed of high-purity steel with low sulfur content, allowing for easy machining using standard methods. They can be bent to a small radius under cold conditions. While subsequent annealing isn't usually required, it should be performed if the fabrication involves severe stress corrosion cracking conditions.
Major applications of grade 904L stainless steel tubes include: