Dura 4024
EN 1.4024

General characteristics

Martensitic grade with slightly increased hardenability (comp. 1.4006). Corrosion resistant in water and steam. For mechanical engineering applications and surgical instruments.

Typical applications

  • Mechanical engineering applications
  • Surgical instruments


Product forms, available sizes and finishes


Product typeFinishesThicknessWidth
Cold rolled coil and sheet2B0,50-4,50≤ 1250
Hot rolled coil and plateHot rolled white5,00-7,00≤ 1250
Chemical composition


TypicalDura 40240.1613.2
EN 10088-21.40240.12-0.17<112.0-14.0Si:<1 P:<0.040 S:<0.015
Mechanical properties



StandardGradeRp0.2Rp1.0RmElongationImpact strengthRockwellHBHV

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

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




Standards & approvals



EN 10088-21.4024