COMMON TRADE NAMES: 22 Chrome Duplex, SM22CR®, 2205, Duplex 2205, SAF® 2205, Sanmac® 2205, VM® 22, F51
22 Chrome, or 2205 Duplex, is a cold hardened duplex stainless steel with a nitrogen addition for improved corrosion resistance, particularly where welding is required. In the annealed condition, alloy 2205 has more than twice the strength of conventional austenitic stainless steels and, in many environments, exhibits corrosion resistance superior to alloy 316. It is the most widely used of the duplex stainless steels offering improved mechanical properties and increased resistance to the effects of CO2, chlorides, pH, and temperatures when compared with Super 13 Chrome.
Duplex 25 Chrome is suitable for environments high in chlorides and commonly used in oil and gas production, marine applications, and chemical processing. In upstream oil and gas, 22 Chrome is used extensively as tubing, casing, or liners in corrosive wells containing the presence of CO2, low H2S, and chlorides. It is often commonly used in heat exchangers using chloride-bearing water as a coolant.
CRA offers specialty alloy 22 Chrome seamless pipe & tube for use in multiple industries and applications, including:
|≤ 0.03||21 - 23||4.5 - 6.5||BAL||≤ 2||≤ 1||2.5 - 3.5||≤ 0.03||≤ 0.02||0.08 - 0.2|
API 5CRA / ISO 13680 Group 2 Category 22-5-3
|NACE MR0175/ISO 15156
H2S Sour Service Limits
|H2S ≤ 3.0 psi,
Temp ≤ 450°F
|H2S ≤ 3.0 psi|
|140||140||160||145||9||38||140 Grade not recommended for sour service|
|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.|
MIN OD: 2-1/16″ (2.0625″)
MAX OD: 10-3/4″ (10.750”)
MAX WALL THICKNESS: 1.925”
LENGTHS: Up to 70′ (840”)
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