CZ124 - BS 2874-1986

Grade	CZ124
Corresponding Standard	BS 2874-1986 Copper and Copper Alloy Rods and Sections (Other Than Forging Stock)
Classification	Copper and Copper Alloys

CZ124 Chemical Element Composition Content (%)

Component	Fe	Cu	Pb	Other Total ^*	More
Minimum Value	-	60	2.5	-	Zn:余量
Maximum Value	0.3	63	3.7	0.5	Zn: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.

CZ124 Mechanical Properties

size d mm	Mark	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %
Round, hexagonal bars, rods; 6<d≤25	CZ124-M	Manufacturing State (M)	≥330	≥130	≥12
Round, hexagonal bars, and strips; 25＜d≤50		Manufacturing State (M)	≥300	≥115	≥18
Round, hexagonal bars, and strips; d > 50		Manufacturing State (M)	≥280	≥95	≥22
Round, hexagonal bars, rods; 6<d≤12	CZ124-1/2H	Cold Working - 1/2 Hard (1/2H)	≥400	≥160	≥6
Round, hexagonal bars, rods; 12＜d≤25		Cold Working - 1/2 Hard (1/2H)	≥380	≥160	≥9
Round, hexagonal bars, and strips; 25＜d≤50	CZ124-1/4H	Cold working - 1/4 hard (1/4H)	≥340	≥130	≥12
Round, hexagonal bars, and strips; d > 50	CZ124-1/2H	Cold Working - 1/2 Hard (1/2H)	≥310	≥95	≥18
Rectangular, Square Bar; 6<t≤25, d≤150	CZ124-M	Manufacturing State (M)	≥300	≥115	≥18
Rectangular, Square Bar; t>25, d≤150		Manufacturing State (M)	≥280	≥95	≥22
Rectangular, Square Bar; 6<t≤12, d≤25	CZ124-1/2H	Cold Working - 1/2 Hard (1/2H)	≥340	≥160	≥9
Rectangular, Square Bar; 6<t≤12, 25<d≤150		Cold Working - 1/2 Hard (1/2H)	≥310	≥105	≥12
Rectangular, Square Bar; 12<t≤50, d≤50		Cold Working - 1/2 Hard (1/2H)	≥310	≥105	≥18
Rectangular, Square Bar; 12<t≤50, 50<d≤150		Cold Working - 1/2 Hard (1/2H)	≥280	≥95	≥18
Rectangular, Square Bar; t>50, 50<d≤100		Cold Working - 1/2 Hard (1/2H)	≥280	≥95	≥18
Round, hexagonal bars, rods; 3<d≤5	CZ124-H	Cold Work - Hard (H)	≥550	≥290	-
Round, hexagonal bars, rods; 5＜d≤8		Cold Work - Hard (H)	≥480	≥220	≥3

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!