| Type: | Stainless Steel Sheets |
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| Standard: | ASTM, AISI, GB, JIS, DIN, EN |
| Grade: | N08904 |
| Certification: | ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS |
| Shape: | Flat |
| Technique: | Hot Rolled |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier N08904 super austenitic high alloy steel is mainly used in harsh acidic media and performs best in pure phosphoric acid. It has good corrosion resistance to pitting and crevice corrosion, intergranular corrosion, stress corrosion cracking, and general corrosion. N08904 is widely used in the chemical industry, in media such as acetic acid, ammonium phosphate, electrolyte, oxalic acid, superphosphate, and zinc sulfate, such as acetic acid recovery towers and formic acid tower condensers.
904L Manufacturering Technology
Super austenitic stainless steel 904L (00Cr20Ni25Mo4.5Cu; UNS: N08904; EN: 1.4539) is a high alloy austenitic stainless steel with low carbon content, which has good corrosion resistance in dilute sulfuric acid and is designed for harsh corrosive environments. It has a high chromium content and sufficient nickel content. The addition of copper gives it strong acid resistance, especially high resistance to chloride interstitial corrosion and stress corrosion cracking. It is not prone to corrosion spots and cracks, and its resistance to pitting corrosion is slightly better than other steel grades. It has good machinability and weldability, and can be used for pressure vessels.
Brand and standard:
UNS N08904 (a standard jointly designed by the American Society of Automotive Engineers and the American Society for Testing and Materials in 1967), DIN1.4539 (a German standard), ASTM A240 (an American Society for Testing and Materials standard; the new standard classifies it as a stainless steel series, while the original standard ASME SB-625 classifies it as a nickel based alloy series), and SUS890L.
Metallographic structure of 904L stainless steel:
904L is a completely austenitic structure, and compared to austenitic stainless steel with high molybdenum content, 904L has a significant impact on ferrite and α The precipitation of phases is not sensitive.
Physical and mechanical properties:
Density: 8.0g/cm3. Tensile strength: σ B ≥ 520Mpa. Elongation: δ≥ 35%. Corrosion resistance of 904L stainless steel
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Material
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200 300 400 Series stainless steel
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Grade
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201 202 301 303 304 304L 309 309S 310 310S 316 316L 316Ti 317L 314 321 2205 2507 409 409l 410 410S 420 420J1 420J2 430 441 444 904L N08904 00Cr20Ni25Mo4.5Cu 904S13
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Standard
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AISI ASTM JIS DIN EN BS
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Tech
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Cold rolled / Hot rolled
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Thickness
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Hot rolled: 3mm-200mm 16-150mm
Normal: 3.0 4.0 5.0 6.0 8.0 10.0 12.0 14.0 16.0 etc.
As per customer's request: 16-200mm
Cold rolled: 0.3-6mm
Normal:0.3/0.4/0.5/0.6/0.7/0.8/0.9/1.0/1.2/1.5/2.0/2.5/3.0 As per customer's request: 4.0/5.0/6.0 |
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Width&Length
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10mm-6000mm, or as per customer's request Hot rolled: 1250*3000mm (4.1*10ft) 1500*3000mm (5*10ft) 1250*6000mm (4.1*19.6ft) 1500*6000mm (5*19.6ft) 1800*6000mm (5.9*19.6ft) 2000*6000mm(6.5*19.6ft) Cold rolled: 1000*2000mm (3.2*6.5ft) 1219*2438mm (4*8ft) 1500*3000mm (5*10ft) 1800 available 2000 available |
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Place of Origin
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Jiangsu China
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Processing Service
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Bending, Welding, Recoiling, Punching, Cutting
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Tolerance
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±1%
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Surface Treatment
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N0.1,2B,BA,6K, 8K, 12k, N0.4, HL, Mirrored,checkered etc
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Payment
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T/T terms, 30% pre-payment, 70% balance see B/L copy
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Delivery Time
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5-15 days for ordinary orders (standard orders <=50 ton); specified orders needs final confirmation as per customer's request
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Surface Finish
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Definition
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Application
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2B
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Finished by heat treatment , picking or equipvalent cold rolling , followed by skin pass to obtain adequate luster surface.
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With bright and smooth surface ,easy for further grinding to obtain brighter surface ,suitable for medical instruments ,milk
containers ,tableware and so on. |
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BA
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Bright heat treatment after cold rolling.
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Structual members .etc.kitchen utensil ,cutlery ,eleltric applicances ,medical instruments ,building decorations ,etc.
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NO.3/NO.4
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Polished with No.150-240 abrasives.
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Milky food processing equipment , medicalinstruments ,building decorations.
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HL
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Finshed by polishing with abrasives of suitable grain size to obtain continuous streaks.
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Building decorations ,such as elevators ,escalators ,door etc.
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6K/8K
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A mirror-like reflective surface ,which is obtained by polishing with successively finer abrasives and buffing extensively with all gritlines are removed.
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Buliding entrances,bulkding column casting ,elevator's wall doors ,counters,sculptures etc.
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| Grade | C | Si | Mn | P | S | Ni | Cr | Mo |
| 201 | ≤0.15 | ≤0.75 | 5.5-7.5 | ≤0.06 | ≤ 0.03 | 3.5-5.5 | 16.0-18.0 | - |
| 301 | ≤0.15 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 6.0-8.0 | 16.0-18.0 | - |
| 304 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 8.0-13.0 | 18.0-20.0 | - |
| 304L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.035 | ≤ 0.03 | 9.0-13.0 | 18.0-20.0 | - |
| 309S | ≤0.08 | ≤0.75 | ≤2.0 | ≤0.045 | ≤ 0.03 | 12.0-15.0 | 22.0-24.0 | - |
| 310S | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 19.0-22.0 | 24.0-26.0 | - |
| 314 | ≤0.25 | ≤1.5-3.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 19.0-22.0 | 23.0-26.0 | |
| 316 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 10.0-14.0 | 16.0-18.0 | 2.0-3.0 |
| 316L | ≤0.03 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 10.0-15.0 | 16.0-18.0 | 2.0-3.0 |
| 321 | ≤0.08 | ≤1.0 | ≤2.0 | ≤0.035 | ≤ 0.03 | 9.0-13.0 | 17.0-19.0 | - |
| 347 | ≤0.08 | ≤0.75 | ≤2.0 | ≤0.045 | ≤ 0.03 | 9.0-13.0 | 17.0-19.0 | |
| 410 | ≤0.15 | ≤1.0 | ≤1.0 | ≤0.035 | ≤ 0.03 | - | 11.5-13.5 | - |
| 420 | ≤0.16-0.25 | ≤1.0 | ≤1.0 | ≤0.040 | ≤ 0.03 | - | 12.0-14.0 | - |
| 430 | ≤0.12 | ≤0.75 | ≤1.0 | ≤0.040 | ≤ 0.03 | ≤0.60 | 16.0-18.0 | - |
| 904L | ≤0.02 | ≤1.0 | ≤2.0 | ≤0.045 | ≤ 0.03 | 23.0-28.0 | 19.0-23.0 | - |
20ft GP: 5.8m(length) x 2.13m(width) x 2.18m(high) about 24-26CBM,27MTS
40ft GP: 11.8m(length) x 2.13m(width) x 2.18m(high) about 54CBM,27MTS
40ft HG: 11.8m(length) x 2.13m(width) x 2.72m(high) about 68CBM,27MTS
Q: What are the details of your after sales service?
A:1) We provide the necessary technical support to all of our customers, such as material performance and heat treatment data advice.
2) We provide the appropriate steel material technical parameters for customers in Germany, The USA, Japan, Britain, and other countries.
Q: How could I get a sample?
A: Before we received the first order, please afford the sample cost and express fee. We will return the sample cost back to you within your first order.
Suppliers with verified business licenses
Audited Supplier 
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