SLD, SGT, YXR7, YXM1 Steels

SLD, SGT, YXR7, YXM1 Steels

Steel name: SLD, SGT, YXR7, YXM1
Diagram No.: 1459
Mat.No. (Wr.Nr.) designation: 1.2379, - , - , 1.3343
AISI/SAE designation: D2, O1, - , M2
JIS designation: SKD11, SKS3, - , SKH51
Chemical composition in weight %: SLD steel: 1.5% C, 0.3% Si, 0.4% Mn, 12.0% Cr, 0.9% Mo, 0.3% V. SGT steel: 1.0% C, 0.3% Si, 1.0% Mn, 0.7% Cr. YXR7 steel: 0.8% C, 0.8% Si, 0.3% Mn, 4.7% Cr, 1.3% W, 5.5% Mo, 1.3% V. YXM1 steel: 0.9% C, 0.3% Si, 0.4% Mn, 4.2% Cr, 6.5% W, 5.0% Mo, 2.0% V.
Steel group: Tool steels, high speed tool steels
Applications: Cold work tool steel applications.
Comment: The maximum diameter of a round bar stock that obtains 60 HRC hardness at its center by quenching.
Reference: Not shown in this demo version.

Heat Treatment
Hardening: SLD steel: 1000-1050 C air cool. SGT steel: 800-850 C oil quench. YXR7 steel: 1160-1180, 1120-1160 oil quench. YXM1 steel: 1200-1240, 1160-1200 oil quench.
Tempering: SLD steel: 480-530 or 150-200 C air cool. SGT steel: 150-200 C air cool. YXR7 steel: 540-580 air cool. YXM1 steel: 550-570 air cool.

Hardenability Diagram

Click the image to enlarge the diagram.

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 purposes. There is no representation that the recipient of this literature will receive updated editions as the become available.