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Grade CuNi1Si
Germany W-Nr. CW109C
Corresponding Standard DIN EN 12163-2016
Copper and copper alloys – Rod for general purposes
Classification Copper and Copper Alloys
Density 8.8 g/cm3
CuNi1Si Chemical Element Composition Content (%)
Component Fe Si Mn Ni Pb Other Total More
Minimum Value - 0.4 - 1 - - Cu:余量
Maximum Value 0.2 0.7 0.1 1.6 0.02 0.3
"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.
CuNi1Si Mechanical Properties
diameter/width arcoss-flats
d/t
mm		 Mark
Heat Treatment or Condition
Tensile Strength
σb
Mpa 		Yield Point
σs
Mpa 		Elongation or Extension Rate
δ
% 		Hardness
HBW
50<d/t≤80 CuNi1Si-R440 R440 ≥440 ≥300 ≥16(A)
50<d/t≤80 CuNi1Si-H120 H120 120~180
30<d/t≤50 CuNi1Si-R540 R540 ≥540 ≥470 ≥10(A)
30<d/t≤50 CuNi1Si-H140 H140 140~190
2<d/t≤30 CuNi1Si-R590 R590 ≥590 ≥540 ≥8(A100)，
≥10(A11.3)，
≥12(A)
2<d/t≤30 CuNi1Si-H160 H160 160~210
All specifications CuNi1Si-M M No specification No specification No specification No specification
①Material condition names and character codes:
H - Hardness (Brinell 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.
②A100、A11.3、A-gauge length
New and Old Grade Replacement List
Corresponding Standard Grade
DIN 17672-1-1983
Grade
Germany W-Nr.
DIN EN 12163-1998
Grade
Germany W-Nr.
Old Grade
Old Grade
DIN EN 12163-2016
Grade
Germany W-Nr.
Approximate Comparison Table cupronickel
China Japan United States International Organization for Standardization Germany France European Standard Russia
ISC JIS ASTM UNS ISO Numerical Grade DIN EN/DIN W-Nr. NF EN/NF EN Numerical Grade GOST
C19010 C1901
C19010 		98Cu-1.5Ni-.5Si C19010 CuNi1Si C19010 CuNi1Si
(CuNi1.51Si) 		CW109C
(2.0853) 		CuNi1Si
CW109C 		CuNi1Si CW109C МНК1.5-0.5
CuNi1Si Corresponding Standards(Same grade name, different standards)
1 EN 12163-1998
CuNi1Si CW109C
2 EN 12166-1998
CuNi1Si CW109C
3 EN 12166-2016
CuNi1Si CW109C
4 DIN EN 12163-1998
CuNi1Si CW109C (CuNi1.5Si) (2.0853)
5 DIN EN 12163-2016
CuNi1Si CW109C
6 DIN EN 12166-2016
CuNi1Si CW109C
7 DIN EN 12166-1998
CuNi1Si CW109C
8 EN 12163-2016
CuNi1Si CW109C
9 EN 12167-2024
CuNi1Si CW109C

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