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NO.4 Brushed Finish Duplex 2507 Plate for Marine Exhaust Scrubbers with High Corrosion Resistance
| Place of Origin | China |
|---|---|
| Brand Name | TISCO, ZPSS,BAOSTEEL,LISCO,JISCO |
| Certification | SGS,ISO,CE,BIS |
| Model Number | 200 SERIES, 300 SERIES,400 SERIES, 904l,2205,2507 etc. |
| Minimum Order Quantity | 1 TON |
| Packaging Details | Export sea worthy packing with wooden pallet and well tied and protected, Or as to clients' requirements. |
| Delivery Time | 3~10 DAYS, Most of sizes are in stock |
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 2000Tons /Month |
Product Details
| Product Name | NO.4 Brushed Finish Duplex 2507 Plate For Marine Exhaust Scrubbers | Standard | ASTM A240/240M ; ASME SA-240/SA-240M; JIS G4305; DIN/BS/NF EN10028-7 ; ISO;GB/T 3280-2015 |
|---|---|---|---|
| Technique | Cold Rolled Or Hot Rolled | Edge | Mill Edge; Cut Edge |
| Samples | Free To Supply | Grade | 2507,2205,201,304, 304L 316, 316L ,430, 410, 420, 316Ti, 321, 301, 309,309S, 310, 310S,etc. |
| Width*Length | 1000*2000;1219*2438;1219*3048; 1250*3000;1500*3000;1524*3048mm Or Per Customized | Surface | NO.1,2B,BA,8K,No.4,HL,SB,Embossed,Checkered, Etc.. |
| Thickness | Cold Rolled: 0.3mm~6mm; Hot Rolled: 3mm~60mm | Trade Term | FOB,CIF,EXW,CFR,DDU,DDP,DAP |
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| Finish | Definition | |
|---|---|---|
| No.1 | Hot Rolled | |
| No. 2B | Cold-rolled , bright finish ; |
Product Description
NO.4 Brushed Finish Duplex 2507 Plate for Marine Exhaust Scrubbers
Product Overview
Our NO.4 brushed finish duplex 2507 plates provide outstanding resistance to sulfuric acid condensation, seawater, and high-temperature exhaust gases in marine scrubbers.
Problem Analysis
Marine scrubbers using 316L or 317L stainless steel fail rapidly due to combined attack from chlorides, low pH environments, and thermal cycling.
Solution
Duplex 2507 offers superior performance with PREN >40, high thermal conductivity (reducing hot spots), and NO.4 finish for uniform corrosion resistance.
Specifications
| Parameter | Details |
|---|---|
| Grade | 2507, 2205 |
| Thickness | 3-20mm hot rolled |
| Finish | NO.4, HL, No.1 |
| Edge | Cut edge |
| Standard | ASTM A240M |
Applications
- Marine exhaust gas cleaning systems (scrubbers)
- Inlet/outlet ducts
- Spray nozzles
Technical Performance
High nickel (7%) and molybdenum (4%) content provides excellent resistance to mixed acid dew point corrosion. The NO.4 brushed finish eliminates sharp crevices that could initiate corrosion.
Selection Guidelines
Use 2507 grade for open-loop scrubbers operating with seawater. For closed-loop systems using fresh water, 2205 grade may be sufficient. Always verify IMO compliance for your specific application.
Frequently Asked Questions
Q1: Can 2507 withstand 300°C exhaust temperatures?
Yes, but proper design for thermal expansion is essential.
Q2: Is NO.4 finish easy to clean?
Yes, though it is less smooth than 2B finish.
Q3: What is the lead time for custom sizes?
Typically 15-20 days for custom orders.
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