COMMON TRADE NAMES: 25 Chrome Duplex, 25Cr, SM25CR®, VM® 25, 2507, Duplex 2507
25 Chrome (UNS S31260), also referred to as 2507 Duplex or Duplex 25 Chrome, is a cold hardened duplex stainless steel intended for corrosion resistance in sweet (CO2) and mildly sour (H2S) environments with high chloride content, requiring high strength up to 450°F.
25 Chrome offers increased resistance to the effects of CO2 , chlorides, pH, and temperatures relative to 22 Chrome allowing use as downhole tubular components, packers, and other subsurface equipment in deeper wells with high-pressure and high-temperature (HPHT) conditions where pitting corrosion from high chlorides are a concern.
This alloy is classified in MR0175/ISO15156 as a duplex stainless steel having a Pitting Resistance Equivalent Number ≤40, suitable for H2S partial pressure ≤0.3 psi.
MIN OD: 2-1/16″ (2.0625″)
MAX OD: 10-3/4″ (10.750”)
MAX WALL THICKNESS: 1.925”
LENGTHS: R1, R2, R3
END FINISH: Plain end, Premium threads, & API threads
Standard & Non-Standard Sizes Available.
Manufactured Material Available as Quickly as 1 Week.
Non-Standard Mill Quantities Accommodated
