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SKF ToughTech Steel
Steel name: SKF ToughTech
Diagram No.: 8157
Type of diagram: CCT
Chemical composition in weight %: See the table.
Steel group: Bearing steels
Note: Top diagram: The CCT diagrams of the SKF ToughTech steel
(lines) vs the steel 100CrMnMoSi8-4-6 (dots) quenching
from 870 °C after soaking for 70 min at temperature. “P”
denotes pearlite; “B” bainite and “M” martensite.
Bottom diagram: The CCT diagrams of the SKF ToughTech steel
(lines) vs the steel 100CrMnMoSi8-4-6 (dots) quenching
from 885 °C after soaking for 120 min at temperature. “P”
denotes pearlite; “B” bainite and “M” martensite.
Reference: Not shown in this demo version.
Mohamed Y. Sherif, et al., A new through-hardenable high hardenability bearing steel designed by
means of simultaneous optimisation of multiple responses using the desirability
function approach, pp. 59-68, Bearing World Journal Vol. 4 (2019).
The chemical composition of the vertically continuously cast steel concept, the SKF ToughTech. Heat no. 586200,
DEW, Witten, Germany. Unless otherwise stated, the concentrations are in wt%. Hydrogen content was measured in the liquid
steel. The balance is iron.
Click the table to enlarge the data.
Transformation diagram
Click the image to enlarge the diagram.
Transformation diagram
Click the image to enlarge the diagram.
Disclaimer: 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.