Cronidur 30 Steel

Cronidur 30 Steel

Steel name: Cronidur 30
Diagram No.: 2444
Mat.No. (Wr.Nr.) designation: 1.4108
DIN designation: X30CrMoN15-1
Chemical composition in weight %: 0.25-0.35% C, max. 1.00% Si, max. 1.00% Mn, 14.00-16.00% Cr, 0.85-1.10% Mo, max. 0.50% Ni, 0.30-0.50% N
Steel group: Cold work tool steels
Properties: Cronidur 30 is a high-nitrogen martensitic cold-work tool steel with exceptional corrosion resistance and ductility at hardness values >58 HRC. Nitrogen is alloyed above its solubility level at ambient pressure by means of the Pressure Electroslag Remelting (PESR) process. Regarding the remelting process, the homogenous microstructure consists of a very pure metallic matrix containing very fine and homogenously distributed carbonitrides, leading to outstanding polishability, excellent wear resistance, and high dimensional stability after heat treatment.
Applications: Aerospace and aeronautics, medical, automotive, racing and mechanical engineering, pharmaceutical and food industries. High-precision bearings, ball screws, spindles, extruder shafts, pumps, valves, industrial knives, etc.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: A professional heating-up process – including common equalization steps until the selected austenitization temperature is reached – is obligatory. The equalization temperature for complex parts is usually selected as between 750°C and 780°C. The holding time after the material core has reached the equalization temperature is between 20 min. and 40 min. The austenitization temperature depends on the required product properties and may be selected between 990°C and 1030°C. In the case of vacu– um hardening, the partial pressure of nitrogen within the vacuum furnace chamber should be set to between 100 mbar and 200 mbar in order to avoid any denitridation of the product surface. If this is not possible, the grinding allowance chosen should be approx. 0.2 mm.
Tempering: Tempering should be carried out directly after the material core has reached room temperature (RT is assumed to be approx. 20°C). If the austenitization temperature chosen is higher than 1000°C, deep-freezing at a temperature of equal to or lower than -80°C should be carried out prior to tempering in order to minimize retained austenite. The holding time after the material core has reached the deep-freezing temperature is to be set to at least 60 min. Two tempering cycles of at least two hours should be carried out in order to achieve the required material properties.
Diagram note: No data

Tempering Diagram

Price: 20.00 US $
Buy Online Tempering Diagram

Other Steel Data links
Carbides in Steel
CCT and TTT Diagrams of Steels
CCT and TTT Diagram Calculating Service
Hardenability Diagrams of Steels
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Semiconductor Etchants

Disclaimer: The material data is a central depository of information based on global actual tests and calculated software data that is available to the public for a fee. The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.