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1.4923 (X22CrMoV12-1) quenched and tempered

What is 1.4923 (X22CrMoV12-1)

1.4923 is a stainless heat resisting chromium steel with molybdenum additive, which is used as a standard for steel components in steam turbines and high-temperature resistant screws.

Due to the addition of vanadium it has an increased creep rupture strength. Scale oxide resistance up to approximately 600°C. The corrosion resistance in natural environment is limited due to the relatively low chromium content.

International identifiers

23H12MNF

Properties of the material 1.4923 (X22CrMoV12-1)

Properties

Forgeabilitygood
Weldabilitygood
Mechanical propertiesgood
Corrosion resistancemoderate
Machinabilitymoderate

Weldability: Good

Machinability: 4 (1 = poor – 10 = good)

Corrosion resistance class: 2 (0 = low – 5 = good)

Forging
  • Forging temperature: 1,180–950 °C
  • Slow heating to 1,150–1,180 °C
  • Subsequent slow cooling
  • Cooling in dry ash, in a furnace or similar materials
  • Subsequent heat treatment possible
Welding
  • Welding only with certain precautions
  • Preheating temperature: 400–450 °C
  • Interpass temperature: 400–500 °C
  • After welding, quenching and tempering or annealing can be carried out directly
  • For tempering: cool the welded joint to 100–150 °C
  • Subsequently temper for at least 4 hours at 740–780 °C
  • Tempering after complete martensitic transformation
  • Subsequent slow cooling
Corrosion resistance
  • Corrosion resistance in natural environments is limited
  • Satisfactory corrosion resistance in the absence of salt and chloride concentrations
  • Resistant to steam
Machining
  • Machinability depends on strength and hardness
  • Cutting conditions depend on the microstructure
  • Use of coated carbide cutting tools recommended
 Depth of cut (mm)631
 Feed rate (mm/rev.)0,50,40,2
Annealed, Rm 700–800 N/mm²Cutting speed (m/min)100130165

Physical properties

Density (kg/dm3)              7,70
Electrical resistivity at 20°C (Ω mm2/m)0,60
Magnetizabilityis present
Thermal conductivity at 20°C (W/m K)24
Thermal conductivity at 650°C (W/m K)29
Specific heat capacity at 20°C (J/kg K)460
Specific heat capacity at 800°C (J/kg K)540

Processing

Cold forminglimited feasibility
Machiningpossible
Cold headinglimited feasibility
Open-die and die forgingpossible

 

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Heat treatment 1.4923

By quenching and tempering grade 1.4923, optimum mechanical properties can be achieved. The tempering temperature within the range of 640°C–740°C depends on the desired strength, followed by air cooling.

Chemical composition of 1.4923

1.4923
X22CrMoV12-1		CSiMnPSCrMoNiV
min.0,18    11,00,800,30,25
max.0,240,500,900,0250,01512,51,200,80,35

Areas of application for 1.4923

Instructions for use

  • Non-corrosive, high-temperature-resistant chromium steel with molybdenum addition
  • Suitable for high temperatures and continuous loads
  • High creep strain and creep rupture strength due to the addition of vanadium
  • Resistant to scaling up to approx. 600°C
  • Suitable for components exposed to high temperatures
  • Particularly suitable for pressure and steam applications

Areas of application

  • Steam turbine and turbine construction
  • Aerospace
  • Reactor technology
  • Pressure and steam boilers
  • High-temperature-resistant screws and fasteners

Form of supply and availability of 1.4923

In stock

Available for immediate delivery from stock

Form of supply

Flat, forged, quenched and tempered
Round bars, forged, quenched and tempered

Available in QT1!

StahlblockRundstahl

Sawn blank

The processing with the saw is a mechanical processing of the material, which results in a significantly lower unintended deformation and increased hardness for the existing structure, such as the thermal cutting.

Thus, the machined workpiece has a homogeneous structure even at the edge, which does not change in the continuation of the material.
This circumstance allows immediate finishing of the workpiece with milling or drilling . So it is not necessary to anneal the material or make a similar operation beforehand.

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Frequently asked questions about material 1.4923:

The tensile strength of stainless steel 1.4923 is 800 to 950 N/mm².

The density of stainless steel 1.4923 is 7.7 kg/dm³ at 20°C.

Stainless steel 1.4923 is resistant to scaling up to 600°C and can achieve a maximum hardness of 590 HV.

Stainless steel 1.4923 can be used in aerospace, pressure vessels, steam boilers, reactor technology and turbine construction.

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All stainless steel cuts

Notice: Specifications contained in following data sheet are provided as a description, liability is excluded!