Grade C72900
Old Grade
Corresponding Standard ASTM B740-2009(R2015)
Copper-Nickel-Tin Spinodal Alloy Strip
Classification Copper and Copper Alloys
C72900 Chemical Element Composition Content (%)
Component Fe Mn Ni Nb Pb * Zn Sn Mg More
Minimum Value - - 14.5 - - - 7.5 - Cu:余量
Maximum Value 0.5 0.3 15.5 0.1 0.02 0.5 8.5 0.15
C72900 Mechanical Properties
condition Heat Treatment or Condition
Tensile Strength
σb
Mpa
Yield Point
σs
Mpa
Elongation or Extension Rate
δ
%
Strip Solution (TB00) 440~585 0.05% offset
165~275
≥32
Strip Solution + cold working 1/4 hard (TD01) 515~690 0.05% offset
345~455
≥18
Strip Solution + cold working 1/2 hard (TD02) 585~760 0.05% offset
450~580
≥8
Strip Solution heat treatment + cold working hardening 3/4 hard (TD03) 655~825 0.05% offset
550~690
≥3
Strip Solution + cold working hard (TD04) 690~895 0.05% offset
585~745
-
Strip solution HT and Cold Worked Spring(TD08) 840~1000 0.05% offset
690~860
-
Strip solution HT and Cold Worked Special Spring(TD12) 930~1070 0.05% offset
760~895
-
Strip Spinodally HT(TX00) 825~1035 0.05% offset
655~825
≥6
Strip 1/4 Hard+Spinodal HT(TS01) 895~1105 0.05% offset
725~895
≥4
Strip 1/2 Hard+Spinodal HT(TS02) 1000~1205 0.05% offset
860~1035
≥3
Strip 3/4Hard+Spinodal HT(TS03) 1070~1275 0.05% offset
930~1105
≥2
Strip Hard+Spinodal HT(TS04) 1140~1345 0.05% offset
1005~1170
≥2
Strip Spring+Spinodal HT(TS08) 1205~1415 1070~1275 -
Strip Special Spring+Spinodal HT(TS12) 1240~1550 1105~1380 -

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