CuNi1Si CW109C - DIN EN 12166-1998

Grade	CuNi1Si
Germany W-Nr.	CW109C
Corresponding Standard	DIN EN 12166-1998 Copper and copper alloys – Wire 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
Minimum Value	-	0.4	-	1	-	-
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

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	CuNi1Si-R450	Solution heat treatment + cold working R450	≥450	≈440*	≥5(A100) ≥6(A11.3)
1.5≤d≤6	CuNi1Si-H135	Solution heat treatment + cold working H135				HV: 135~175
6<d≤15	CuNi1Si-R410	Solid Solution + Cold Working R410	≥410	≈400*	≥6(A11.3) ≥8(A)
6<d≤15	CuNi1Si-H120	Solution + Cold Work H120				HV: 120~160
1.5≤d≤6	CuNi1Si-R650	Solution heat treatment + cold working + precipitation hardening R650	≥650	≈620*	≥7(A100) ≥8(A11.3)
1.5≤d≤6	CuNi1Si-H190	Solid Solution + Cold Working + Precipitation Hardening H190				HV: 190~240
6<d≤15	CuNi1Si-R590	Solution heat treatment + cold working + precipitation hardening R590	≥590	≈580*	≥7(A100) ≥8(A11.3) ≥10(A)
6<d≤15	CuNi1Si-H170	Solution heat treatment + cold working + precipitation hardening H170				HV: 170~220
All specifications	CuNi1Si-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 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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