CuNi2Si CW111C - DIN EN 12166-1998

Grade	CuNi2Si
Germany W-Nr.	CW111C
Corresponding Standard	DIN EN 12166-1998 Copper and copper alloys – Wire for general purposes
Classification	Copper and Copper Alloys
Density	8.8 g/cm³

CuNi2Si Chemical Element Composition Content (%)

Component	Fe	Si	Mn	Ni	Pb	Other Total	More
Minimum Value	-	0.4	-	1.6	-	-	Cu:余量
Maximum Value	0.2	0.8	0.1	2.5	0.02	0.3	Cu:余量

"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.

CuNi2Si Mechanical Properties

diameter③ d mm	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
1.5≤d≤6	CuNi2Si-R480	Solution heat treatment + cold working R480	≥480	≈450*	≥4*(A100) ≥5(A11.3)
1.5≤d≤6	CuNi2Si-H140	Solution heat treatment + cold working H140				HV: 140~180
6<d≤15	CuNi2Si-R410	Solid Solution + Cold Working R410	≥410	≈400*	≥6(A11.3) ≥8(A)
6<d≤15	CuNi2Si-H130	Solid Solution + Cold Working H130				HV: 130~170
1.5≤d≤6	CuNi2Si-R700	Solution heat treatment + cold working + precipitation hardening R700	≥700	≈680*	≥6(A100) ≥7(A11.3)
1.5≤d≤6	CuNi2Si-H200	Solution heat treatment + cold working + precipitation hardening H200				HV: 200~250
6<d≤15	CuNi2Si-R640	Solution heat treatment + cold working + precipitation hardening R640	≥640	≈620*	≥8(A11.3) ≥10(A)
6<d≤15	CuNi2Si-H190	Solid Solution + Cold Working + Precipitation Hardening H190				HV: 190~240
All specifications	CuNi2Si-M	M	No specification	No specification	No specification	No specification

① Material status name and character code: H-hardness (Brinell hardness or Vickers hardness), suffix number indicates the hardness value; R- tensile strength, suffix number indicates the minimum tensile strength value; M- When manufactured, no mechanical properties are specified. See standard EN 1173-2008.
② A100、A11.3、A-gauge length
—Value when the gauge length A100 = 100 mm (d < 4mm).
—Value When the gauge length A = 5.65√So (d > 8mm); When the gauge length A11.3 = 11.3√So (4 < d ≤ 8mm), the minimum elongation value is 40%.
—Value when the gauge length A = 5.65√So (d > 8mm); When the gauge length A11.3 = 11.3√So (4 < d ≤ 8mm), the minimum elongation value is 20%.
—The value when the gauge length A11.3 = 11.3√So (4 < d ≤ 8mm). (See original 8.2Note2 for the above spacing)
Tables such as: softened, 1/8 hard, spring hard, etc., refer to the state of the material in the old standard
③ Or equivalent cross-sectional area for polygonal wire

Approximate Comparison Table Cupper and cupper alloy

Germany		European Standard
DIN EN/DIN	W-Nr.	EN	Numerical Grade
CuNi2Si	2.0855	CuNi2Si	CW111C

CuNi2Si Corresponding Standards(Same grade name, different standards)

1	EN 12163-1998
	CuNi2Si CW111C
2	EN 12166-1998
	CuNi2Si CW111C
3	EN 1654-1998
	CuNi2Si CW111C
4	EN 12166-2016
	CuNi2Si CW111C
5	DIN 17672-1-1983
	CuNi2Si 2.0855
6	DIN EN 12163-1998
	CuNi2Si CW111C (2.0855)
7	DIN EN 12163-2016
	CuNi2Si CW111C
8	DIN EN 12166-2016
	CuNi2Si CW111C
9	DIN EN 12166-1998
	CuNi2Si CW111C
10	DIN 17666-1983
	CuNi2Si 2.0855
11	EN 12163-2016
	CuNi2Si CW111C
12	EN 12167-2024
	CuNi2Si CW111C
13	DIN EN 12449-2019
	CuNi2Si CW111C
14	EN 12449-2023
	CuNi2Si CW111C

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