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UR 2205Mo Steel
Steel name: UR 2205Mo
Diagram No.: 7452
Type of diagram: TTP
Mat. No. (Wr. Nr.) designation: 1.4462
DIN designation: X2CrNiMo22-5-3
UNS designation: S31803/UNS S32205
ASTM designation: A240
Chemical composition in weight %: 0.020% C, 22.50% Cr, 3.10% Mo, 5.80% Ni, 0.17% N
Steel group: Duplex stainless steels
Note: UR 2205Mo is a duplex stainless steel; its chemical
composition is optimized in order to present, after a
solution annealing treatment at 1040 - 1080°C (1900
- 1975°F) followed by water quenching, a nearly 50%
alpha /50% gamma microstructure. Heat treatments performed
at 1100°C (2010°F). A higher temperature may
result in an increase of the ferrite content. Typical TTP
- diagram (temperature time precipitation) shows the
two - phase transformation areas. At high temperature:
600° - 1000°C (1110/1830°F), the a phase may
transform in sigma, . ,... intermetallic phases which makes
the alloy brittle. At lower temperatures (300 - 500°C
- 570 - 930°F) the a phase transforms in alpah resulting in
a hardening of the structure after several hours holding
time.
Reference: Not shown in this demo version.
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Disclaimer: The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.