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Rubber Mold Steels NAK80 Mechanical Properties: Tensile Strength 183,400 psi Yield Strength (.2% offset, 41 HRc) 147,600 psi Reduction of Area 41.9% Elongation in 2" (longitudinal) 16.1% Modulus of Elasticity (room temp.) 30.0 x 10-6 psi Charpy V-notch Impact Strength (toughness):   Longitudinal 8.1 ft/lb Transverse 8.5 ft/lb. Hardness 40 HRc All technical and engineering data and suggested procedures, specifications and applications contained in this publication are for general information only. Daido Steel, International Mold Steel and/or their distributors disclaim any and all express or implied warranties of merchantability, suitability for any particular purpose or use, or freedom from infringement of any patent, trademark or copyright. NAK80® is a registered trademark of International Mold Steel, Inc. and Daido Steel Limited.

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