Amardeep Steel Centre is a leading Manufacturer, Exporter, Supplier and Stockiest of SS 904L Plates, UNS N08904 Plates, WNR 1.4539 Plates, SS 904L SUS 904L Plate, Alloy 904l Plates, X1 MICroCu 25-20-5 Plates, 2RK65 Plates, INOX 904L Plates ASTM A240M 904L Plates, ASTM A480 904L Plates, ASTM A480M 904L Plates, AISI 904L Plates, SUS 904L Plates, Alloy 904L Plates, Stainless Steel 904L plates in India.
Alloy 904L (UNS N08904) is a super austenitic stainless steel that is designed for moderate to high corrosion resistance in a wide range of process environments. The combination of high chromium and nickel content, coupled with additions of molybdenum and copper, assure good to excellent corrosion resistance. With its highly alloyed chemistry — 25% nickel and 4.5% molybdenum, 904L provides good chloride stress corrosion cracking resistance, pitting and general corrosion resistance superior to 316L and 317L molybdenum enhanced stainless steels. Alloy 904L was originally developed to withstand environments containing dilute sulfuric acid.
It also offers good resistance to other inorganic acids such as hot phosphoric acid as well as most organic acids. Stainless Steel 904L is easily welded and processed by standard shop fabrication practices. Amardeep Steel Centre a wide range of SS 904L Plates, which is one of many stainless steel grades that can be purchased at our firm. Stainless Steel 904L Plates (UNS N08904) has Good resistance to pitting and crevice corrosion, very good resistance to stress corrosion cracking, good resistance to intergranular corrosion, good formability and weldability, maximum service temperatures of 450 degree C (824 degree F).
The high nickel and chromium content of these Stainless Steel 904L plates make it corrosion resistant is both oxidizing and reducing environments. SS 904L Plates are intended for use under severe corrosion conditions within the process industry. Stainless Steel 904L Plates is also used in utility scrubber assemblies, acid and fertilizer production equipment. Alloy 904L Coils was originally developed to withstand environments containing dilute sulfuric acid, and is one of the few stainless steels that, at temperatures up to 95 Degree F (35 Degree C), provides full resistance in such environments within the entire concentration range.
Stainless Steel 904L Plates Specification: |
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| Specifications | : | ASTM B677 / B673 / B674, ASTM A240, ASTM A240M, ASTM A480, ASTM A480M, ASTM B625 / ASME SB625 |
| Dimensions | : | ASTM, ASME and API |
| Size | : | 1000 mm x 2000mm, 1220mm x 2440mm, 4' x 8', 1250mm x 2500mm, 1500mm x 3000mm to 6000mm, 2000mm x 4000mm to 6000mm |
| Range | : | 5mm To 150mm |
| Condition | : | Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished |
| Specialize | : | Shim Sheet, Perforated Sheet, B. Q. Profile. |
| Hardness | : | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Thickness | : | 4.0mm - 100mm |
| Form | : | Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) |
| End | : | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
TP 904L Stainless Steel Plates Equivalent Grades: |
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| STANDARD | WERKSTOFF NR. | UNS | JIS | AFNOR | BS | KS | EN |
| SS 904L | 1.4539 | N08904 | SUS 890L | Z2 NCDU 25-20 | 904S13 | STS 317J5L | X1NiCrMoCu25-20-5 |
Production according to national and international standards (e.g. ASME, ASTM, API, EN, DNV, etc.)
| Grade | C | Mn | Si | P | S | Cr | MO | Ni | CU | |
| 904L | Min | - | - | - | - | - | 19.0 | 4.00 | 23.00 | 1.00 |
| max | 0.20 | 2.00 | 1.00 | 0.045 | 0.035 | 23.0 | 5.00 | 28.00 | 2.00 |
| 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 | 35 | 70-90 typical | - |
Rockwell Hardness value range is typical only; other values are specified limits.
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) |
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| 0-100°C | 0-315°C | 0-538°C | At 20°C | At 500°C | |||||
| 904L | 8000 | 200 | 15 | - | - | 13 | - | 500 | 850 |
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 904L | N08904 | 904S13 | - | 1.4539 | X1NiCrMoCuN25-20-5 | 2562 | - |
These comparisons are approximate only. The list is intended as a comparison of functionally similar materials not as a schedule of contractual equivalents. If exact equivalents are needed original specifications must be consulted.
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Grade |
Why it might be chosen instead of 904L |
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316L |
A lower cost alternative, but with much lower corrosion resistance. |
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6Mo |
A higher resistance to pitting and crevice corrosion resistance is needed. |
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2205 |
A very similar corrosion resistance, with 2205 having higher mechanical strength, and at a lower cost to 904L. (2205 not suitable for temperatures above 300°C.) |
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Super duplex |
Higher corrosion resistance is needed, together with a higher strength than 904L. |
Stainless Steel 904L Plates are typically used for Seawater cooling equipment, Chemical processing for sulphuric, phosphoric and acetic acids, Gas washing, Condenser tubes, Control and instrumentation, Heat exchangers and more. Alloy 904L Plates is also used in utility scrubber assemblies, acid and fertilizer production equipment. SS 904l Plates are also used for Heat Exchanger, Control and instrumentation,Chemical processing for sulphuric, phosphoric and acetic acids.
We are one of the leading manufacturer, suppliers, exporter, stockiest and distributors of SS 904l Plates. We are specialized in delivering our best quality products in all countries which are as follow as: Sweden, Japan, Italy, Spain, Russia, Romania, China, Korea, Ukraine, Turkey, Poland, USA, Europe, South Africa, Sri Lanka, Gulf, Kuwait, Iran.
904L stainless steels possess excellent resistance to warm seawater and also from chloride attack. The above the normal resistance in grade 904L against stress corrosion cracking is due to the presence of high amounts of nickel. The alloy is less resistant to nitric acid than grades 304L and 310L.
Grade 904L stainless steels also have excellent weldability which can be performed using all conventional methods. This steel does not require pre-heat and post-weld heat treatments.
The steel structure collapses only at a temperature above 400 C. This grade of SS Plates gives the best oxidation resistance and has the structural stability which usually collapses at high temperatures like 400°C and above.
