253ma plate

253ma stainless steel253ma plate

General characteristics

253 MA is a stainless steel with excellent oxidation and creep resistance in cyclic conditions that is best employed in temperatures up to 1150 °C/2100 °F. There is a slight susceptibility to embrittlement during continuous operation at 600–850 °C/1110–1560 °F.

Typical applications

  • Oil industry equipment
  • Conveyor belts
  • Refractory anchors
  • Expansion bellows
  • Radiant tubes, tube shields, and valves and flanges
  • Rotary kilns
  • Exhaust manifolds
  • Power generation applications
  • Cyclone dip tubes
  • Impact separators
  • Bell furnaces and muffle furnaces
  • Automotive components
  • Heat treatment trays
  • Dampers
  • Recuperator tubes for the steel industry
  • Large-scale bakery ovens

Mechanical properties

The mechanical strength at elevated temperatures for 253 MA are presented in the table below (minimum values).

º C 50 100 150 200 250 300 350 400 450 500 550 600 700
Rp0.2 [MPa] 280 230 198 185 176 170 165 160 155 150 145 140 130
R[MPa] 630 585 560 545 538 535 533 530 515 495 472 445 360

At higher temperatures, the creep strength is the dimensioning factor. Creep deformation strength and creep rupture strength for

253 MA are presented in the table below. Values are according to EN 10095.

 

º C 500 550 600 650 700 750 800 850 900 950 1000 1050 1100
Creep rupture strength Rkm,10 000 [MPa] 250 157 98 63 41 27 18 13 9.5 7 5.5 4
Creep rupture strength Rkm, 100 000 [MPa] 160 88 55 35 22 15 11 8 5.5 4 3 2.3
Creep deformation strength RA1,10 000 [MPa] 230 126 74 45 28 19 14 10 7 5 3.5 2.5
Creep deformation strength RA1, 100 000 [MPa] 150 80 45 26 16 11 8 6 4.5 3 2 1.2

 

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