Mechanical Characteristics of Ultrahard Alloy
 
        1. Hardness: between 84~93 Rockwell A scale, about 67~80 in RC and 900~1850 in Vickers.
        2. Tensile Strength and Elongation: 50~150kg/mm2, elongation 0.1~2%.
        3. Compression Strength and Poison rate: 300~600kg/mm2, 0.17~0.23
        4. Impact Value: about 0.1~0.3 kg/mm2
        5. Bending Resistance: 100~300 kg/mm2
            Tensile Strength: 0.5 times bending resistance, Fatigue strength by steel plate weight is 0.3
            times bending resistance.
        6. Vertical Elasticity Constant (Young`s Modulus): 38.000~67.000 kg/mm2
              *   We provide documents for the calculation of internal pressure strength and the
                   calculation of pulling force for pulling dies types. Please ask us.
              *   We provide precision design and numerical calculation systems for any types of
                   ultrahard alloy pull wire dies. Please use them.
 
 
List of Grades and Characteristics of Toyo Alloy
Type
Grade Mechanical Characteristics
Hardness HRA Bending
Resistance
 Kg/mm2 More Than
  G - 01 91 - 93 120 V1   GO  T
GO  I
GO  I
 
 
G - 05 90 - 92 130  
 
G - 10 89 - 91 150 V2 GO 2
G - 20 87 - 90 190 SO 2
G - 25 87 - 89 200 V3 GO 3
G - 30 86 - 88 220 SO 3
G - 35 85 - 87 250        
G - 40 84 - 86 280        
G - 50 83 - 85 300        


GRADES AND CHARACTERISTIC OF TOYO ALLOY