Super austenitic stainless steel (904L / 254SMO) has high corrosion resistance, strong acid resistance, pitting corrosion resistance, and stress corrosion resistance, and is used in high-end chemical, nuclear power, seawater, desulfurization, and precision equipment.
|
Name |
Super Austenitic Stainless Steel Coil |
|
Grade |
904L, 254SMO (S31254), AL-6XN (N08367), 654SMO (S32654), etc. |
|
Standard |
ASTM, ASME, EN, UNS, JIS, etc. |
|
Thickness |
0.3mm–10.0mm (cold rolled), 6mm–100mm (hot rolled) |
|
Width range |
1000mm, 1219mm, 1250mm, 1500mm, customized |
|
Length |
Customized |
|
Size |
10002000mm, 12192438mm, 1219*3048mm, customized Max. width 2000mm |
|
Finish |
2B, BA, No.4, 8K, Brushed, Hairline, Pickling & Passivation |
|
Color |
Silver (standard), PVD Coating (customized: Golden, Black, Rose gold, etc.) |
|
Application |
Chemical processing equipment, seawater desalination, FGD systems, oil & gas pipelines, pharmaceutical equipment, food processing machinery, high-corrosion industrial components |
|
Lead time |
15 to 35 working days after the receipt of 30% deposit |
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Payment terms |
30% TT for deposit, 70% balance before shipment or LC at sight |
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Packing |
Waterproof paper + steel strip + wooden pallet or according to customer’s request |
Ⅰ.Material Classification and Core Positioning
904L: Low-carbon, high-nickel, high-molybdenum super austenitic stainless steel, all-around high corrosion resistance
254SMO: High-molybdenum, high-nitrogen super austenitic stainless steel, with enhanced resistance to pitting corrosion and crevice corrosion
Common characteristics: High corrosion resistance, resistance to strong acids, resistance to pitting corrosion, resistance to stress corrosion, used in high-end chemical, nuclear power, seawater, desulfurization, and precision equipment.
II.Advantages of Super Austenitic Stainless Steel
|
Brand |
C |
Si |
Mn |
Cr |
Ni |
Mo |
Cu |
P |
S |
|
904L |
≤0.02 |
≤1.00 |
≤2.00 |
19.0~23.0 |
23.0~28.0 |
4.0~5.0 |
1.0~2.0 |
≤0.045 |
≤0.035 |
|
Brand |
C |
Si |
Mn |
Cr |
Ni |
Mo |
N |
P |
S |
|
254SMO |
≤0.02 |
≤0.80 |
≤1.00 |
19.5~20.5 |
17.5~18.5 |
6.0~6.5 |
0.18~0.22 |
≤0.030 |
≤0.030 |
|
Brand |
tensile strength (MPa) |
Yield strength (MPa) |
elongation (%) |
hardness (HB) |
|
904L |
≥490 |
≥215 |
≥35 |
≤240 |
|
254SMO |
≥655 |
≥310 |
≥35 |
≤260 |
(1) 904L
(2) 254SMO
Super austenitic stainless steel coils are renowned for their exceptional corrosion resistance and are widely used in chemical processing, seawater desalination, oil and gas pipelines, and highly corrosive industrial equipment. Unlike ordinary steel, it possesses extremely strong resistance to water corrosion, rust, and fouling. However, it is not completely fouling-proof in extremely low-oxygen or high-salinity environments. Super austenitic stainless steel is available in various grades and surface treatments to suit different harsh operating conditions.
Super austenitic stainless steel coils use 904L, 254SMO, AL-6XN, and 654SMO super austenitic stainless steel sheets as raw materials to ensure superior quality of the finished product. The steel sheets undergo surface treatment through chemical and mechanical methods such as pickling, passivation, and polishing to improve corrosion resistance and surface finish. Subsequently, the treated steel sheets are cold-rolled using a cold rolling mill to ensure that their thickness and dimensional accuracy meet requirements. Finally, the cold-rolled stainless steel strips are slit into strips and coiled to produce super austenitic stainless steel coils. The finished coils are properly packaged for easy storage and transportation.
In order to ensure product quality, we will arrange professional personnel to check product quality, packaging, weight, hardness, etc., according to customer requirements of product specifications, looking for high-quality and cheap cooperative factories in China, to provide customers with one-stop procurement services and quality assurance.
Excellent packaging: waterproof paper and plastic film + iron cover + at least three strapping straps + strapping straps fixed on iron or wood pallets can effectively protect products from corrosion and various climate changes during transportation. Generally speaking, we ship from Shanghai, Tianjin, Qingdao and Ningbo ports. We have worked with many experienced shipping companies for a long time to find the most suitable mode of transportation for you.
