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ASTM A240 Super Duplex 32750 Sheet is a super duplex stainless steel designed for applications which demand exceptional strength and corrosion resistance. Alloy 2507 sheet has 25% chromium, 4% molybdenum, and 7% nickel. This high molybdenum, chromium and nitrogen content results in excellent resistance to chloride pitting and crevice corrosion attack and the duplex structure provides 2507 with exceptional resistance to chloride stress corrosion cracking.
Usage of Super Duplex S32750 Sheet should be limited to applications below 600° F (316° C). Extended elevated temperature exposure can reduce both the toughness and corrosion resistance of alloy 2507. Duplex 2507 sheet possesses excellent mechanical properties. Often a light gauge of 2507 material can be used to achieve the same design strength of a thicker nickel alloy. The resulting savings in weight can dramatically reduce the overall cost of fabrication.
ASTM A240 Super Duplex S32750 Sheet is highly resistant to uniform corrosion by organic acSuper Duplex 2507 Plateids such as formic and acetic acid. It is alsohighly resistant to inorganic acids, especially if they contain chlorides. Alloy 2507 sheet is highly resistant to carbide-related intergranular corrosion. Due to the ferritic portion of the duplex structure of the alloy it is very resistant to stress corrosion cracking in warm chloride containing environments. Through additions of chromium, molybdenum and nitrogen localized corrosion such as pitting and crevice attack are improved. Alloy 2507 has excellent localized pitting resistance.
| Specifications | ASTM A240 / ASME SA240 |
| Standards | ASTM, ASME and API |
| Size | 5 mm To 100 mm thick in 1000 mm TO 2500 mm width & 2500 mm to 12500 mm |
| Hardness | Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc. |
| Finishing | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Sheet & Plate in Form of | Coils, Foils, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) & Angle, Channel, Tray Etc. |
| Grade | Cr | Ni | Mo | Mn | Si | Cu | N | P | C | S | Fe |
| S32750 | 24-26 | 6-8 | 3-5 | 1.20max | 0.80max | 0.50max | 0.24 – 0.32 | 0.35max | 0.030max | 0.020 | Balance |
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.8 g/cm3 | 0.281 lb/in3 |
| Melting point | 1350°C | 2460°F |
| Surface finish of Sheet | Width (max in) | Gauge(in) |
| 2B – heat treated, Cold rolled, pickled, skin passed Plate | 72 | 10–24 |
| Polished plate | 60 | 11–24 |
| BA Mexinox only | 48 | 18–28 |
| 2D – heat treated, Cold rolled, pickled plate | 60 | 12–24 |
| Temper rolled plate Mexinox only | 48 | 13–29 |
| Surface finish of Plate | Thickness (mm) | Width (maximum mm) |
| 2B to heat treated, Cold rolled, pickled, skin passed plate | 0.25 to 8.0 | 2032 |
| 2R to bright annealed, Cold rolled plate | 0.25 to 3.5 | 1524 |
| brushed, Polished plate | 0.5 to 4.0 | 1524 |
| 2E to heat treated, Cold rolled, mechanically descaled plate | 0.4 to 8.0 | 2032 |
| 2D to heat treated, Cold rolled, pickled plate | 0.4 to 6.35 | 1524 |
| 2H to Work hardened plate | 0.4 to 6.35 | 1524 |
|
Super Duplex 32750 Sheet Rate |
Super Duplex 32750 Sheet Price |
| ASTM A240 Super Duplex 32750 Sheet price | $5-$8/kg |
| Super Duplex 32750 Sheet price | 300- 500 Rupee/kg |
| 2B Finish Super Duplex 32750 Sheet price | 15-20 Dirham/kg |
| Super Duplex 32750 Sheet Price | 3- 5 pound/kg |
| SAF 2205 Duplex Sheet Price | 1-1.9 kuwaiti Dinar/kg |
Notes: Prices Are Fluctuating as per Market
Calico Metal Alloys LLP exports their products to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.
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