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|Product Name:||EN 10216-2 1.4922 , DIN X20CrMoV11-1 Stainless Seamless Steel Tube For Boilers||Dimension:||OD 6 ~219 X WT 0.5~25.4mm|
|Length:||Cut Lengths On Request|
EN 10216-2 Stainless seamless steel tube W.-nr. 1.4922 ( DIN X20CrMoV12-1, X20CrMoV11-1 )
“12 Chrome Molybdenum Vanadium” steels are a series of martensitic stainless steels designed
for use at moderately high temperatures. 1.4922 is a typical grade in this series.
The dominant application is steam power generating plant.
This grade combines the following characteristics
The 12% CrMoV series of steels can be regarded as a development of the original Harry Brearley
cutlery grade. By adding nickel, molybdenum and vanadium to the basic 12% Cr grade, the strength
is improved especially at high temperature. The key property is creep strength.
Creep is the phenomenon where a material continues to deform with time under stress.
For steels it is important to take account of creep above about 450°C.
Typical steam temperatures for power generation are approximately 550°C which explains the
extensive use of these grades in this application sector.
Further enhancements of the 12% CrMoV grades have been developed with additions of tungsten,
cobalt, niobium and nitrogen. These have often been known by brand names such as FV 448, FV 535, Jethete M152.
Applications which illustrate these features include:
Pressure equipment, high temperature bolting, steam turbines, nuclear reactors, gas turbines, petroleum refining.
Chemical composition of grade EN 1.4922, DIN X20CrMoV11-1 ( typical )
|Temperature||Cooling medium||Temperature||Cooling medium|
|1020 - 1080||Air||730 - 780||Air|
|Grade||Tensile strength||Elongation A min %|
|1.4922, X20CrMoV11-1||Mpa 690 - 840||17|
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