Grade
B122 C77000
Old Grade
4
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
Message
I want to correct it
Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!