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Grade C7451
Other Names
Corresponding Standard JIS H 3270-2018
Copper beryllium alloy, phosphor bronze and nickle silver rods, bars and wires
Classification Copper and Copper Alloys
Properties Corrosion Resistance Fatigue Resistance
C7451 Chemical Element Composition Content (%)
Component Fe Mn Ni Cu Pb More
Minimum Value - - 8.5 63 - Zn:residual
Maximum Value 0.25 0.5 11 67 0.03
C7451 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Wire rod (W); 0.40≤d≤5 Annealing (O) 345~490
Wire rod (W); 0.40≤d≤5 1/4 Hard (1/4H) 400~550
Wire rod (W); 0.40≤d≤5 1/2 Hard (1/2H) 490~635
Wire rod (W); 0.40≤d≤5 Hardening treatment (H) ≥635
d=diameter or width across flats; unit mm
C7451 Corresponding Standards(Same grade name, different standards)
1 JIS H 3110-2018
C7451 C7451 R C7451 P
2 JIS H 3270-2018
C7451 C7541 W

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