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NO.4 Brushed Finish Duplex 2507 Plate for Marine Exhaust Scrubbers with High Corrosion Resistance
NO.4 Brushed Finish Duplex 2507 Plate for Marine Exhaust Scrubbers with High Corrosion Resistance
NO.4 Brushed Finish Duplex 2507 Plate for Marine Exhaust Scrubbers with High Corrosion Resistance
NO.4 Brushed Finish Duplex 2507 Plate for Marine Exhaust Scrubbers with High Corrosion Resistance
Specifications
Brand Name :
TISCO, ZPSS,BAOSTEEL,LISCO,JISCO
Model Number :
200 SERIES, 300 SERIES,400 SERIES, 904l,2205,2507 etc.
Certification :
SGS,ISO,CE,BIS
Place of Origin :
China
MOQ :
1 TON
Payment Terms :
L/C,T/T,Western Union
Supply Ability :
2000Tons /Month
Delivery Time :
3~10 DAYS, Most of sizes are in stock
Packaging Details :
Export sea worthy packing with wooden pallet and well tied and protected, Or as to clients' requirements.
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
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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NO.4 Brushed Finish Duplex 2507 Plate for Marine Exhaust Scrubbers with High Corrosion Resistance

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Product Detail
Brand Name :
TISCO, ZPSS,BAOSTEEL,LISCO,JISCO
Model Number :
200 SERIES, 300 SERIES,400 SERIES, 904l,2205,2507 etc.
Certification :
SGS,ISO,CE,BIS
Place of Origin :
China
MOQ :
1 TON
Payment Terms :
L/C,T/T,Western Union
Contact Supplier
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NO.4 Brushed Finish Duplex 2507 Plate for Marine Exhaust Scrubbers with High Corrosion Resistance
NO.4 Brushed Finish Duplex 2507 Plate for Marine Exhaust Scrubbers with High Corrosion Resistance

Jiangsu Hongtu Metal Technology Co.,Limited

Verified Supplier
4 Years
jiangsu, wuxi
Since 2006
Business Type :
Manufacturer, Exporter, Seller
Main Products :
Sheets Stainless Steel, Stainless Steel Coils, Aluminum Sheet
Total Annual :
15000000-20000000
Employee Number :
400~500
Certification Level :
Verified Supplier
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