Data still to be completed------(Home)
PRODUCT DATA of Cronidur 30
MaterialCronidur 30
Product Datasheetdatasheet_cronidur30.pdf
General InformationCronidur 30 is a pressure-nitrided, martensitic cold working steel.
Use of the PESR (Pressure Electro Slag Remelting) process in combination with sophisticated forging and rolling technology imparts extremely good cleanliness and a fine, homogeneous structure.
Use in SpacecraftBearings, ball screw bearing shafts
Chemical Composition0.3C, 15Cr, 1M0. 0.4N, rem Fe
Name of ManufacturerEnergietechnik Essen GmbH
Westendstraße 15 45143 Essen, Germany
Tel. +49 (0) 201 17786-3324
Fax +49 (0) 201 17786-3311
info@energietechnik-essen.de
www.energietechnik-essen.de
EXPERIENCE IN PRACTICE
Development StatusCommercial Product
Equivalent DesignationsX 30 CrMoN 15 1, 1.4108
PHYSICAL PROPERTIES
Crystal StructureFace centered cubic (fcc)
Specific Gravity7.67 to 7.72
Magnetic PropertiesFerromagnetic
ELASTIC PROPERTIES
Tensile Modulus210 to 224 GPa
Poisson Ratio0.26
THERMAL PROPERTIES
Temperature Rangeup to 500 C
Thermal Conductivity13.8 to 20.9 W/m.K
Thermal Expansion Coefficient9.9 μstrain/°C
Specific Heat0.486 J/g.K
RELEVANT PROPERTIES FOR USE IN SPACE COMMUNITY
General Corrosion StatusNo specific corrosion protection required
Stress Corrosion StatusClass 3
Failed SCC test according to ECSS-Q-ST-70-37C
Data Quality: Preliminary Design Data
MachinabilityGood