Dura 4122
EN 1.4122

View Dura range datasheet

General characteristics

Outokumpu’s most corrosion resistant martensitic grade, good resistance in moderately corrosive, low chloride containing environments. Very good mechanical properties and wear resistance. Medium-high hardness. Applied for e.g. surgical instruments, food processing equipment, mechanical parts, machine and pump construction.

Typical applications

  • Surgical instruments
  • Food processing equipment
  • Mechanical parts
  • Machine and pump construction

 

Product forms, available sizes and finishes

Flat

Product typeFinishesThicknessWidth
Cold rolled coil and sheet2B0,50-4,50≤ 1250
Hot rolled coil and plateHot rolled white5,00-6,00≤ 1250
Chemical composition

 

The chemical composition is given as % by weight.

StandardGradeCMnCrNiMoNOther
TypicalDura 41220.4116.11.0
EN 10088-21.41220.33-0.45<1.5015.5-17.5<10.80-1.30Si:<1 P:<0.040 S:<0.015
Mechanical properties

 

 

StandardGradeRp0.2Rp1.0RmElongationImpact strengthRockwellHBHV
  MPaMPaMPa%J
Product type: Cold rolled coil and sheet
Typical (thickness 1 mm)Dura 412246049072093HRB

1)Elongation according to EN standard:
A80 for thickness below 3 mm.
A for thickness = 3 mm.
Elongation according to ASTM standard A2” or A50.

Corrosion resistance

 

Pitting corrosion resistanceCrevice corrosion resistance
PRECPTCCT
19<10<0

PRE Pitting Resistant Equivalent calculated using the formula: PRE = %Cr + 3.3 x %Mo + 16 x %N
CPT Corrosion Pitting Temperature as measured in the Avesta Cell (ASTM G 150), in a 1M NaCl solution (35,000 ppm or mg/l chloride ions).
CCT Critical Crevice Corrosion Temperature is the critical crevice corrosion temperature which is obtained by laboratory tests according to ASTM G 48 Method F

 

 

Physical properties

 

 

DensityModulus of elasticityThermal exp. at 100 °CThermal conductivityThermal capacityElectrical resistanceMagnetizable
kg/dm3GPa10-6/°CW/m°CJ/kg°CµΩm
7.721510.4154300.8Yes

Fabrication

 

 

Standards & approvals

 

 

StandardDesignation
EN 10088-21.4122