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904L / UNS N08904 Stainless Steel Seamless Pipe / Welded Stainless Steel Tube Alloy 904L
| Place of Origin | China |
|---|---|
| Brand Name | DELTA |
| Certification | ISO |
| Model Number | 904L |
| Minimum Order Quantity | 500 kgs |
| Price | 4650-5760 USD/Ton |
| Packaging Details | standard packing for export |
| Delivery Time | 5 - 12 days based on the quantity |
| Payment Terms | T/T, Western Union, L/C |
| Supply Ability | 10 Ton per week |
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xProduct Details
| Products | Stainless Steel Pipe | Grade | 904L |
|---|---|---|---|
| Standard | ASTM GB EN | Length | 6m Or Custom Cutting Any Length As Request |
| Diameter | DN10 - DN400 | Wall Thickness | SCH10 - XXS Or Unstandard Size |
| Type | Seamless Pipe | Service | Cutting, Polishing |
| Application | Industrial | Packing | Wooden Box Or PP Bag |
| Highlight | UNS N08904 Stainless Steel Seamless Pipe,Alloy 904L Stainless Steel Seamless Pipe,904L Stainless Steel Seamless Pipe |
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Product Description
904L / UNS N08904 Stainless Steel Seamless Pipe / Welded Stainless Steel Tube Alloy 904L
904L Stainless Steel Pipe & Tube Specifications
| Specification | ASTM A312, A213, A249, A677 |
|---|---|
| Grade | 904L Stainless Steel |
| Finishes | Annealing Pickling, Bright Annealing |
| NPS | 1/8″ – 24″ |
| Sch | Sch5 – Sch160 |
| Shapes | Round, U Bend, Coil Shape |
| Application | Heat Exchanger, Boiler, Condenser, Cooler, Heater |
904L Stainless Steel Pipe | UNS N08904 Tube
904L stainless steel pipe is manufactured in a large range of sizes including small diameter and large diameter dimensions, 904L stainless steel tube can be both welded and seamless tube complying with ASTM standards and ISO standards, ASTM A269 and A213 standard specifications for seamless tubes, and ASTM A249 standard for welded tubes.
904L stainless steel consists of chromium, nickel, molybdenum and copper contents, these elements give type 904L stainless steel excellent properties to resist corrosion in dilute sulfuric acid because of the addition of copper, 904L commonly is used in high-pressure and corrosion environments where 316L and 317L perform poorly. UNS N08904 pipes are manufactured to resist pitting, stress corrosion cracking, high strength, erosion corrosion and corrosion fatigue, and crevice corrosion, DIN 1.4539 tube is EN standard steel tube grade.
904L Stainless Steel
904L has a high nickel composition with low carbon content, with copper alloy added to improve its corrosion resistance, the “L” in 904L stands for low carbon, it is typical Super Austenitic stainless steel, and equivalent grades are DIN 1.4539 and UNS N08904, 904L has better properties than other austenitic stainless steels.
904L Stainless Steel Chemical Composition (Max %):
| Grade | Ni | Cr | Mo | Cu | C | Mn | Si | P | S | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| 904L | 23 – 28 | 19 – 23 | 4 -5 | 1 – 2 | 0.02 | 2 | 1 | 0.045 | 0.035 | Balance |
904L Stainless Steel Mechanical Properties
| Grade | Tensile Strength, Min | Yield Strength, Min | Elognation | Hardness |
|---|---|---|---|---|
| 904L | 490 Mpa | 215 Mpa | 35% | 90 HRB Max |
904L Stainless Steel Physical Properties
| Grade | Density (Kg/M3) |
Elastic Modulus (GPa) |
Mean Co-Eff Of Thermal Expansion (Μm/M/°C) |
Thermal Conductivity (W/M.K) |
Specific Heat 0-100°C (J/Kg.K) |
Elec Resistivity (NΩ.M) |
|||
|---|---|---|---|---|---|---|---|---|---|
| 0-100°C | 0-315°C | 0-538°C | At 20°C | At 500°C | |||||
| 904L | 7900 | 190 | 15 | – | – | 11.5 | – | 500 | 952 |
904L Stainless Steel Pipe Sizes
| Nominal Pipe Size | Outside Diameter | Nominal Wall Thickness | |||
|---|---|---|---|---|---|
| SCH5S | SCH10S | SCH40S/STD | SCH80S | ||
| 1/8 | 10.3 | — | 1.24 | 1.73 | 2.41 |
| 1/4 | 13.7 | — | 1.65 | 2.24 | 3.02 |
| 3/8 | 17.1 | — | 1.65 | 2.31 | 3.20 |
| 1/2 | 21.3 | 1.65 | 2.11 | 2.77 | 3.73 |
| 3/4 | 26.7 | 1.65 | 2.11 | 2.87 | 3.91 |
| 1 | 33.4 | 1.65 | 2.77 | 3.38 | 4.55 |
| 1 1/4 | 42.2 | 1.65 | 2.77 | 3.56 | 4.85 |
| 1 1/2 | 48.3 | 1.65 | 2.77 | 3.68 | 5.08 |
| 2 | 60.3 | 1.65 | 2.77 | 3.91 | 5.54 |
| 2 1/2 | 73.0 | 2.11 | 3.05 | 5.16 | 7.01 |
| 3 | 88.9 | 2.11 | 3.05 | 5.49 | 7.62 |
| 3 1/2 | 101.6 | 2.11 | 3.05 | 5.74 | 8.08 |
| 4 | 114.3 | 2.11 | 3.05 | 6.02 | 8.56 |
| 5 | 141.3 | 2.77 | 3.40 | 6.55 | 9.53 |
| 6 | 168.3 | 2.77 | 3.40 | 7.11 | 10.97 |
| 8 | 219.1 | 2.77 | 3.76 | 8.18 | 12.70 |
| 10 | 273.1 | 3.4 | 4.19 | 9.27 | 12.70 |
| 12 | 323.9 | 3.96 | 4.57 | 9.53 | 12.70 |
| 14 | 355.6 | 3.96 | 4.78 | 9.53 | — |
| 16 | 406.4 | 4.19 | 4.78 | 9.53 | — |
| 18 | 457.2 | 4.19 | 4.78 | 9.53 | — |
| 20 | 508.0 | 4.78 | 5.54 | 9.53 | — |
| 22 | 558.8 | 4.78 | 5.54 | 9.53 | — |
| 24 | 609.6 | 5.54 | 6.35 | 9.53 | — |
904L Stainless Steel Properties
- Excellent resistance to stress corrosion cracking due to the presence of high amounts of nickel content.
- Pitting and crevice corrosion, intergranular corrosion resistance.
- Grade 904L is less resistant to nitric acid.
- Excellent formability, toughness and weldability, due to low carbon composition, it can be welded using any standard method, 904L cannot be hardened by heat treatment.
- Non-magnetic, 904L is Austenitic stainless steel, and 904L possesses Austenitic structure properties.
- Heat Resistance, Grade 904L stainless steels offer good oxidation resistance. However, the structural stability of this grade collapses at high temperatures, particularly above 400°C.
- Heat Treatment, Grade 904L stainless steels can be solution heat-treated at 1090 to 1175°C, followed by rapid cooling. Thermal treatment is suitable for hardening these grades.
904L Stainless Steel Pipe Standards
- ASTM A 312 – seamless, welded, and heavily cold-worked austenitic stainless steel pipes
- ASTM B 673 – uns n08904, uns n08925, and uns n08926 welded pipe
- ASTM B 677 – uns n08904, uns n08925, and uns n08926 seamless pipe and tube
904L Stainless Steel Tube Standards
- ASTM A 213 – seamless ferritic and austenitic alloy-steel boiler, super-heater, and heat-exchanger tubes
- ASTM A 249 – welded austenitic steel boiler, super-heater, heat-exchanger, and condenser tubes
- ASTM A 269 – seamless and welded austenitic stainless steel tubing for general service
- ASTM B 674 – uns n08904, uns n08925, and uns n08926 welded tube
- ASTM B 677 – uns n08904, uns n08925, and uns n08926 seamless pipe and tube
904L Stainless Steel Applications
Because of the above properties, 904L stainless steel pipe can be used in many applications, ranging from utility scrubber assemblies to acid and fertilizer production equipment, pulp and paper processing, and seawater cooling facilities. Used in processes containing sulfuric or phosphoric acids, 904L displays its excellent resistance to corrosion from those acids. The paper, gas, pharmaceutical and chemical industries also use 904L for its resistance and use to 400-450 degrees C. Alloy 904L tubing can be welded, machined, heat-treated, annealed, hardened, and cold-worked for many purposes.
- Petroleum and petrochemical equipment, for example: Reactor
- Storage and transportation equipment of sulphuric acid, for example, heat exchanger
- Sea water treatment equipment, seawater heat exchanger
- Paper industry equipment, sulfuric acid, nitric acid equipment, making acid, pharmaceutical industry
- Pressure vessel
- Food Equipment
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