CuNi2Si 2.0855 - DIN 17672-1-1983

Grade	CuNi2Si
Germany W-Nr.	2.0855
Corresponding Standard	DIN 17672-1-1983 Wrought copper and copper alloys bars；Properties.
Classification	Copper and Copper Alloys
Properties	Strength
Density	8.8 g/cm³

CuNi2Si Chemical Element Composition Content (%)

Component	Si	Mn	Ni	Other Total	More
Minimum Value	0.5	-	1.6	-	Cu:余量
Maximum Value	0.8	0.8	2.5	0.5	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

diameter/thickness d mm	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Extruded material (P); Size by agreement	2.0855.08	Extrusion or Hot Forging P (.08)	No Specified Mechanical Properties	No Specified Mechanical Properties	-	-
Round material; d≤90	2.0855.40	Solution F26(.40)	≥260	≥60	≥35(A5)	≈70
Square material, hexagonal material; d ≤ 75	2.0855.40	Solution F26(.40)	≥260	≥60	≥35(A5)	≈70
Flat material; d ≤ 40	2.0855.40	Solution F26(.40)	≥260	≥60	≥35(A5)	≈70
Round material; d≤90	2.0855.60	Solution + artificial aging F49(.60)	≥490	≥340	≥15(A5)	≈160
Square material, hexagonal material; d ≤ 75	2.0855.60	Solution + artificial aging F49(.60)	≥490	≥340	≥15(A5)	≈160
Flat material; d ≤ 40	2.0855.60	Solution + artificial aging F49(.60)	≥490	≥340	≥15(A5)	≈160
Round material; d≤30	2.0855.53	Solid Solution + Cold Work Hardening F41 (.53)	≥410	≥340	≥8(A5)	≈140
Square material, hexagonal material; d ≤ 27	2.0855.53	Solid Solution + Cold Work Hardening F41 (.53)	≥410	≥340	≥8(A5)	≈140
Round material; d≤30	2.0855.73	Solution heat treatment + cold working hardening + artificial aging F64(.73)	≥640	≥590	≥10(A5)	≈190
Square material, hexagonal material; d ≤ 27	2.0855.73	Solution heat treatment + cold working hardening + artificial aging F64(.73)	≥640	≥590	≥10(A5)	≈190

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
DIN EN 12163-2016	Grade Germany W-Nr.

Approximate Comparison Table Copper and Copper 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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