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Grade CuNi1P
European Standard Steel Grade CW108C
Corresponding Standard EN 12163-1998
Copper and copper alloys — Rod for general purposes
Classification Copper and Copper Alloys
Density 8.9 g/cm3
CuNi1P Chemical Element Composition Content (%)
Component P Ni Other Total More
Minimum Value 0.15 0.8 - Cu:余量
Maximum Value 0.25 1.2 0.1
"Other individual elements or other totals": The chemical composition includes elements not specified in the table. Analysis should only be conducted if these elements are suspected to be present, or if routine analysis suggests that their content may exceed the prescribed limits.
CuNi1P Mechanical Properties
diameter/width across-flats
d
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
2<d≤80 CuNi1P-R250 Solution Heat Treatment; R250 ≥250 ≈140* ≥20(A100)，
≥22(A11.3)，
≥25(A)
2<d≤80 CuNi1P-H065 Solution Heat Treatment; H065 HB: 65~95；
HV: 70~100
2<d≤25 CuNi1P-R500 Solution Heat Treatment + Cold Work; R500 ≥500 ≈430* ≥5(A100)，
≥6(A11.3)，
≥8(A)
2<d≤25 CuNi1P-H135 Solution Heat Treatment + Cold Work; H135 HB: 135~175；
HV: 140~180
25<d≤40 CuNi1P-R450 Solution Heat Treatment + Cold Work; R450 ≥450 ≈380* ≥10(A)
25<d≤40 CuNi1P-H125 Solution Heat Treatment + Cold Work; H125 HB: 125~175；
HV: 130~180
40<d≤80 CuNi1P-R400 Solution Heat Treatment + Cold Work; R400 ≥400 ≈330* ≥10(A)
40<d≤80 CuNi1P-H110 Solution Heat Treatment + Cold Work; H110 HB: 110~160；
HV: 115~165
2<d≤80 CuNi1P-R650 Solution Heat Treatment + Precipitation Hardening; R650 ≥650 ≈500* ≥8(A100)，
≥10(A11.3)，
≥12(A)
2<d≤80 CuNi1P-H190 Solution Heat Treatment + Precipitation Hardening; H190 HB: ≥190；
HV: ≥200
2<d≤25 CuNi1P-R800 Solution Heat Treatment + Cold Work + Precipitation Hardening; R800 ≥800 ≈730* ≥3*(A100)，
≥4*(A11.3)，
≥5(A)
2<d≤25 CuNi1P-H220 Solution Heat Treatment + Cold Work + Precipitation Hardening; H220 HB: ≥220；
HV: ≥230
25<d≤40 CuNi1P-R750 Solution Heat Treatment + Cold Work + Precipitation Hardening; R750 ≥750 ≈680* ≥5(A)
25<d≤40 CuNi1P-H210 Solution Heat Treatment + Cold Work + Precipitation Hardening; H210 HB: ≥210；
HV: ≥220
40<d≤80 CuNi1P-R700 Solution Heat Treatment + Cold Work + Precipitation Hardening; R700 ≥700 ≈630* ≥5(A)
40<d≤80 CuNi1P-H200 Solution Heat Treatment + Cold Work + Precipitation Hardening; H200 HB: ≥200；
HV: ≥210
2<d≤80 CuNi1P-M M No specification No specification No specification No specification
① Material condition names and designations:
H - Hardness (Brinell hardness or Vickers hardness), with the suffix number indicating the hardness value.
R - Tensile strength, with the suffix number indicating the minimum tensile strength value.
M - Manufactured without specified mechanical properties. Refer to standard EN 1173-2008.
② A100, A11.3, A - Gauge length.
Approximate Comparison Table Wrought Cupronickel
Japan United States International Organization for Standardization European Standard Russia
JIS ASTM UNS ISO Numerical Grade EN Numerical Grade GOST
C1901
C19000 		98.7Cu-1Ni-.3P C19000 CuNi1P C19000 CuNi1P CW108C МН1Ф
CuNi1P Corresponding Standards(Same grade name, different standards)
1 EN 12163-1998
CuNi1P CW108C
2 DIN EN 12163-1998
CuNi1P CW108C

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