NCu28-2.5-1.5 28-2.5-1.5镍铜合金 - GB 3113-1982

Grade	NCu28-2.5-1.5
Other Names
Corresponding Standard	GB 3113-1982 Nickel-copper alloy wires
Classification	Nickel and Nickel Alloys

NCu28-2.5-1.5 Chemical Element Composition Content (%)

Component	Fe	C	Si	Mn	P	S	Cu	As	Pb	Mg	Bi	Sb	Other Total	More
Minimum Value	2	-	-	1.2	-	-	27	-	-	-	-	-	-	Ni+Co:余量
Maximum Value	3	0.2	0.1	1.8	0.005	0.02	29	0.01	0.003	0.1	0.002	0.002	0.6	Ni+Co: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.

NCu28-2.5-1.5 Mechanical Properties

diameter d mm	Heat Treatment or Condition	Tensile Strength σ_b Mpa	Elongation or Extension Rate δ %
0.05≤d≤0.5	Soft (M)	≥48	Gauge distance L0=100 ≥15
0.5＜d≤4	Soft (M)	≥46	≥25
4＜d≤6	Soft (M)	≥45	≥30
0.05≤d≤0.5	Hard (Y)	80~100	≥15
0.5＜d≤4	Hard (Y)	70~90	≥25
4＜d≤6	Hard (Y)	65~85	≥30

NCu28-2.5-1.5 Corresponding Standards(Same grade name, different standards)

1	GB /T 21653-2008
	NCu28-2.5-1.5 28-2.5-1.5镍铜合金
2	GB 3113-1982
	NCu28-2.5-1.5 28-2.5-1.5镍铜合金
3	GB /T 5235-2021
	NCu28-2.5-1.5

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