Grade B122 C77000
Old Grade
Corresponding Standard ASTM B122/B122M-2016
Standard Specification for Copper-Nickel-Tin Alloy, Copper-Nickel-Zinc Alloy(Nickel Silver), and Copper-Nickel Alloy Plate, Sheet, Strip, and Rolled Bar
Classification Copper and Copper Alloys
B122 C77000 Chemical Element Composition Content (%)
Component Fe Mn Ni * Cu Pb More
Minimum Value - - 16.5 53.5 - Zn:余量
Maximum Value 0.25 0.5 19.5 56.5 0.05
B122 C77000 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Hardness
HBW
Thick plates, rolled bars, thin plates, strips Hot Rolled (M20) 415~550
Thick plates, rolled bars, thin plates, strips Cold Work - 1/4 Hard (H01) 475~600 HR(B Scale)
70~88
Thick plates, rolled bars, thin plates, strips Cold Working - 1/2 Hard (H02) 540~655 81~92
Thick plates, rolled bars, thin plates, strips Cold Working - Hard (H04) 635~750 90~96
Thick plates, rolled bars, thin plates, strips Cold Working - Very Hard (H06) 705~805 95~99
Thick plates, rolled bars, thin plates, strips Cold-Worked- Spring(H08) 745~850 97~100
Thick plates, rolled bars, thin plates, strips OS070 29~45
Thick plates, rolled bars, thin plates, strips OS035 37~60
Thick plates, rolled bars, thin plates, strips OS015 47~73

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