CuCo2Be 2.1285 - DIN 17672-1-1983

Grade	CuCo2Be
Germany W-Nr.	2.1285
Corresponding Standard	DIN 17672-1-1983 Wrought copper and copper alloys bars；Properties.
Classification	Copper and Copper Alloys
Density	8.8 g/cm³

CuCo2Be Chemical Element Composition Content (%)

Component	Be	Co	Other Total	More
Minimum Value	0.4	2	-	Cu:余量；Ni+Fe≤0.5
Maximum Value	0.7	2.8	0.5	Cu:余量；Ni+Fe≤0.5

"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.

CuCo2Be 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
Round products; 2<d≤60	2.1285.40	Solution F25 (.40)	250~370	140~210	≥20(AL=100)	HV 70~100
Round products; 2<d≤60	2.1285.60	Solution + Artificial Aging F65 (.60)	650~800	500~650	≥8(AL=100)	HV 195~235
Rounds; 2<d≤25	2.1285.56	Solution Heat Treatment Cold Worked to Hard F50 (.56)	500~600	430~530	-	HV 140~180
Rounds; 25<d≤35	2.1285.56	Solution Heat Treatment Cold Worked to Hard F50 (.56)	450~550	380~480	-	HV 130~180
Rounds; 2<d≤25	2.1285.76	Solution Heat Treatment + Cold Work Hardened + Artificial Aging F80 (.76)	800~950	730~880	-	HV 220~260
Rounds; 25<d≤35	2.1285.76	Solution Heat Treatment + Cold Work Hardened + Artificial Aging F80 (.76)	750~900	680~830	-	HV 210~260
Squares, hexagons; d≤55	2.1285.40	Solution F25 (.40)	250~370	140~210	≥20(AL=100)	HV 70~100
Squares, hexagons; d≤55	2.1285.60	Solution + Artificial Aging F65 (.60)	650~800	500~650	≥8(AL=100)	HV 195~235
Square and hexagonal products; d≤20	2.1285.56	Solution Heat Treatment Cold Worked to Hard F50 (.56)	500~600	430~530	-	HV 140~180
Squares, hexagons; 20<d≤30	2.1285.56	Solution Heat Treatment Cold Worked to Hard F50 (.56)	450~550	380~480	-	HV 130~180
Square and hexagonal products; d≤20	2.1285.76	Solution Heat Treatment + Cold Work Hardened + Artificial Aging F80 (.76)	800~950	730~880	-	HV 220~260
Squares, hexagons; 20<d≤30	2.1285.76	Solution Heat Treatment + Cold Work Hardened + Artificial Aging F80 (.76)	750~900	680~830	-	HV 210~260
Flat products; d≤50	2.1285.40	Solution F25 (.40)	250~370	140~210	≥20(AL=100)	HV 70~100
Flat products; d≤50	2.1285.60	Solution + Artificial Aging F65 (.60)	650~800	500~650	≥8(AL=100)	HV 195~235
Flat material; 15<d≤25	2.1285.56	Solution Heat Treatment Cold Worked to Hard F50 (.56)	500~600	430~530	-	HV 140~180
Flat material; 15<d≤25	2.1285.56	Solution Heat Treatment Cold Worked to Hard F50 (.56)	450~550	380~480	-	HV 130~180
Flat material; d≤20	2.1285.76	Solution Heat Treatment + Cold Work Hardened + Artificial Aging F80 (.76)	800~950	730~880	-	HV 220~260
Flat material; 15<d≤25	2.1285.76	Solution Heat Treatment + Cold Work Hardened + Artificial Aging F80 (.76)	750~900	680~830	-	HV 210~260

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.

1 Approximate Comparison Table Processing of high copper alloy

China		Japan	United States		International Organization for Standardization		Germany		European Standard		Russia
GB	ISC	JIS	ASTM	UNS	ISO	Numerical Grade	DIN EN/DIN	W-Nr.	EN	Numerical Grade	GOST
TBe0.6-2.5 QBe0.6-2.5	C17500	C1750 C17500	97Cu-.5Be-2.5Co	C17500	CuCo2Be	C17500	CuCo2Be	C17500 2.1285	CuCo2Be	CW104C	БрБК0.6-2.5

2 Approximate Comparison Table Cupper and cupper alloy

Germany		European Standard
DIN EN/DIN	W-Nr.	EN	Numerical Grade
CuCo2Be	2.1285	CuCo2Be	CW104C

CuCo2Be Corresponding Standards(Same grade name, different standards)

1	EN 12163-1998
	CuCo2Be CW104C
2	EN 12166-1998
	CuCo2Be CW104C
3	EN 1654-1998
	CuCo2Be CW104C
4	EN 12166-2016
	CuCo2Be CW104C
5	DIN 17672-1-1983
	CuCo2Be 2.1285
6	DIN EN 12163-1998
	CuCo2Be CW104C (2.1285)
7	DIN EN 12163-2016
	CuCo2Be CW104C
8	DIN EN 12166-2016
	CuCo2Be CW104C
9	DIN EN 12166-1998
	CuCo2Be CW104C
10	DIN 17666-1983
	CuCo2Be 2.1285
11	EN 12163-2016
	CuCo2Be CW104C
12	DIN 2076-1984
	CuCo2Be
13	EN 12167-2024
	CuCo2Be CW104C

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