COMMON TRADE NAMES: Super Duplex, 25 Chrome, SAF® 2507, Zeron® 100, Z-100
Super Duplex 2507 includes UNS S32750 and S32760. Compared to alloy 2205, these alloys contain higher levels of chromium, molybdenum, and nitrogen, which increases their resistance to localized pitting and crevice corrosion. They are defined by having a Pitting Resistance Equivalent Number (PREN) greater than 40. In the annealed condition, these alloys have more than twice the strength of conventional austenitic stainless steels and superior corrosion resistance in many environments. Alloy 2507 is also commonly referred to as Super Duplex or 25 Chrome.
Super Duplex 2507 is used in environments containing high levels of chlorides or dissolved oxygen, such as seawater cooling, salt evaporation, desalination, geothermal wells, pulp and paper production, and chemical processing. CRA offers specialty alloy 2507 seamless pipe & tube for use in multiple industries and applications, including:
|UNS S32750||≤ 0.03||24 - 26||6 - 8||BAL||≤ 1.2||≤ 0.8||3 - 4||-||≤ 0.035||≤ 0.02||-||0.24 - 0.32|
|UNS S32760||≤ 0.03||24 - 26||6 - 8||BAL||≤ 1||≤ 1||3 - 4||0.5 - 1||≤ 0.03||≤ 0.01||0.5 - 1||0.2 - 0.3|
ASTM A789, ASTM A790, ASME SA789, ASTM SA790
Per ASTM A789 / A790
|Tensile Strength||Yield Strength||Elongation||Hardness|
|minimum, ksi||minimum, ksi||minimum, %||HRC|
|Elastic Modulus||103 ksi||29.0||28.2||27.0||26.2|
|Steel Making||Electric Arc Furnace followed by Vacuum Oxygen Decarburization (VOD) or Argon Oxygen Decarburization (AOD).|
|Pipe Making||Conventional Seamless Cold Finished Pipe and Tube Manufacturing Processes.|
|Heat Treatment||Cannot be hardened by heat treatment. May be provided in the annealed or cold hardened condition.|
CRA offers this alloy in:
MIN OD: 2-1/16″ (2.0625″)
MAX OD: 10-3/4″ (10.750”)
THICKNESS: Up to 1.925”
LENGTHS: Up to 70′
Standard & Non-Standard Sizes Available.
Manufactured Material Available as Quickly as 1 Week.
Non-Standard Mill Quantities Accommodated