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1.4122 (X39CrMo17-1) Material Data Sheet

What is 1.4122 (X39CrMo17-1)

1.4122 - same or slightly better corrosion resistance than 1.4016. Excellent mechanical properties achievable with targeted heat treatment. 1.4122 better corrosion resistance than the 13% chromium steels, such as 1.4006, due to 17% chromium content. Resistant in media with low aggressiveness and low chlorine-ion concentration. Pitting susceptibility lower due to the molybdenum additive. Optimal corrosion resistance with polished surface.

International identifiers

AFNOR Z38CD16-01, 3H17M

Properties of the material 1.4122 (X39CrMo17-1)

Properties

Wear resistanceexcellent
Weldabilitypoor
Polishabilitymoderate
Corrosion resistancegood
Machinabilitymoderate

Mechanical properties

Tensile strength Rm800 – 950 N/mm2
Yield strength Rp 0,2≥ 550 N/mm2
Elongation at break A5  >12 %
Impact energy at 25°C>14 J

Physical properties

1.4122 Density in kg/dm37,7
Electrical resistivity at 20°C in (Ω mm2)/m 0,65
Thermal conductivity at 20°C in W/(m K)29
Specific heat capacity at 20°C in J/(kg K)430

Processing

Machiningpossible

Calculate the weight quickly and easily

Heat treatment 1.4122

  • Targeted heat treatment (hardening) enables excellent mechanical properties due to the high carbon content
  • Significantly improved wear resistance
  • Improved edge retention
  • Slightly reduced machinability

Hot Forming

  • Hot forming (e.g. forging): 1100–800 °C
  • Subsequent very slow cooling

Heat Treatment

Soft Annealing

  • Temperature: 750–840 °C
  • Subsequent cooling in the furnace

Quenching and Tempering

  • Temperature: 900–1050 °C
  • Subsequent quenching in oil or cooling in air

Tempering

  • Temperature: 650–750 °C

Chemical composition of 1.4122

1.4122
X39CrMo17-1		CSiMnPSCrMoNiV
min.0,33bisbisbisbis15,50,8bis   
max.0,451,01,50,050,0317,51,31,0   

Areas of application for 1.4122

Instructions for use

  • For components in mechanical and plant engineering
  • For applications in freshwater environments
  • When corrosion-resistant components such as pumps or valves are required
  • For wear-resistant components in plastics processing
  • For applications requiring a combination of strength and corrosion resistance

Areas of application

  • General mechanical and plant engineering
  • Plastics processing, particularly PVC processing
  • Pump manufacturing
  • Valve manufacturing
  • Fittings and instrumentation manufacturing
  • Knife manufacturing
  • Production of extrusion components

Form of supply and availability of 1.4122

In stock

Immediately available from stock

Form of supply

flat, forged, quenched and tempered

Stahlblock

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 1.4122:

1.4122 is a ferromagnetic material and can therefore be magnetized.

1.4122 can be surface hardened to a hardness of up to 53 HRC.

At 400 °C, 1.4122 still has a yield strength of 470 MPa.

Welding 1.4122 should only be carried out in special cases, with preheating above 350 °C and subsequent post-weld heat treatment.

More stainless steel

1.4021 1.4057 1.4104 1.4112
1.4313 1.4410 1.4418 1.4462
1.4542 17-4PH

All stainless steel cuts

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