China Best-Selling C15730 Rod - KINKOU-96 copper alloy(Cu-9Ni-6Sn C72700) – Kinkou factory and suppliers

Best-Selling C15730 Rod - KINKOU-96 copper alloy(Cu-9Ni-6Sn C72700) – Kinkou

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We support our consumers with ideal good quality merchandise and large level provider. Becoming the specialist manufacturer in this sector, we have attained wealthy practical encounter in producing and managing for C15725 Rod , C97 rod , Beryllium Copper Threadlet , We focus on generating own brand and in combination with a lot of experienced expression and first-class equipment . Our goods you worth have.

Best-Selling C15730 Rod - KINKOU-96 copper alloy(Cu-9Ni-6Sn C72700) – Kinkou Detail:

1. Chemical Composition of C72700

Model	Ni	Sn	Mn	Pb	Zn	Fe	P	Impurities	Cu
C72700	8.5-9.5	5.5-6.5	0.05-0.3	≤0.03	≤0.15	≤0.05	≤0.05	≤0.5	Remnant

2. Physical Properties of C72700

Density	8.9	(g/cm³)
Melting Point	968-1078	(℃)
Thermal Expansion Coefficient	17.25	(X10^-6/℃) 20-200℃
Elastic Modulus	120	(GPa)
Electrical Resistivity at 20℃		μΩ*cm
Quench	≤19.5
Precipitation Hardening	≤15
Electrical Conductivity(IACS,%)		(% IACS)
Electrical Conductivity(IACS,%)	≥9
Precipitation hardening（3 hours）	≥12
Torsional Modulus	50	(GPa)
Thermal Conductivity at 20℃	53.6	(W/m.K)
Bending Fatigue Strength	450 Number of cycles：10⁸	(MPa)

3. Mechanical Properties/State of C72700
1) Rolled Products

State	Hardness	Tensile Strength	Yield Strength	Elongaion	Bending*		Hardness, Elasticity and Bending Fatigue Properties(MPa)
State	HV	Rm (MPa)	Rp 0.2 (MPa)	A50mm (%)	Longitudinal//	Transverse⊥	Longitudinal//	Transverse⊥
Quenching
TB	90-125	420-500	≥200	≥30	0.2	0.2	302	220
Quenching/Cold Rolling
TD1	140-180	460-560	≥300	≥15	0.2	0.2	216	359
TD2	160-200	540-640	≥400	≥10	0.2	0.2	275	390
TD3	200-240	620-720	≥550	≥3	0.5	0.5	444	523
TD4	220-260	700-820	≥600	≈1	2	1	467	568
TDX	≤320	≥780	≥650	≈1	10	2	472	613
Quenching/Precipitation Heat Treatment
TF	230-270	740-860	≥510	≥10	0.5	0.5	566	634
Quenching/Cold Rolling/Precipitation Heat Treatment
TH1	270-310	850-950	≥650	≥8	0.5	0.5	684	724
TH2	290-320	880-980	≥720	≥8	1	1	730	770
TH3	310-340	950-1050	≥800	≥4	1	1	829	≥840
TH4	320-360	1000-1100	≥900	≈3	2	2	≥830	≥840
THX	≤390	≥1050	≥950	≈1	/	/	≥830	≥840
*:According to DIN 5011(25/10/85),bending 90 ° along the rolling direction, divide the minimum bending radius by the thickness to determine the R /t ratio

2) Drawn products

State	Hardness	Tensile Strength	Yield Strength	Elongaion	Expansion Coefficient
State	HV	Rm (MPa)	Rp 0.2 (MPa)	A50mm (%)	Z%
Quenching
TB	≤150	400-500	≥200	≥30	≥80
Quenching/Cold Rolling
TD1	150-180	500-580	≥300	≥10	≥75
TD2	180-230	550-720	≥500	≥3	≥70
TD3	220-260	700-800	≥600	≥2	≥65
TD4	230-300	780-880	≥700	≥1.5	≥60
TDX	250-320	880-1000	≥800	≥0.1	≥50

State	HV	Rm (MPa)	Rp 0.2 (MPa)	A50mm (%)	Z%
Quenching/Precipitation Heat Treatment
TF	≤260	770-870	≥500	≥20	≥40
Quenching/Cold Rolling/Precipitation Heat Treatment
TH1	260-300	870-970	≥700	≥13	≥30
TH2	290-310	930-1030	≥800	≥8	≥30
TH3	310-330	1000-1100	≥900	≥5	≥30
TH4	330-360	1100-1200	≥1000	≥2	≥30
THX	≥350	1175-1300	≥1100	≥0.5	≥30

4. Standard Tolerance of Rod and Wire of C72700

Type	Diameter		Tolerance of Diameter		Tolerance of Straightness
Type	inch	mm	inch	mm	inch	mm
Wire	0.2-0.39	6.35-9.9	+/-0.002	+/-0.05	length=10ft,deviation＜0.25 inches	length=3048mm,deviation＜6.35mm
Wire	0.4-0.74	10-18.9	+0.005/-0	+0.13/-0	length=10ft,deviation＜0.25 inches	length=3048mm,deviation＜6.35mm
Rod	0.75-1.6	19-40.9	+0.02/+0.08	+0.5/+2.0	length=10ft,deviation＜0.5 inches	length=3048mm,deviation＜12mm
	1.61-2.75	41-70	+0.02/+0.10	+0.02/+0.10
	2.76-3.25	70.1-82	+0.02/+0.145	+0.02/+0.145
	3.26-6.00	83-152.4	+0.02/+0.187	+0.02/+0.187
	＜0.4	＜10	+/-0.002	+/-0.05

5. Application of C72700
Substituting beryllium copper alloy
It is used for glasses, electricians, electromechanical, electronics, connectors, automobiles, household appliances, spectade industry, turning parts

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We have been appreciated the Chinese manufacturing, this time also did not let us disappoint,good job!

By Michelle from Netherlands - 2018.11.04 10:32

Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.

By Eileen from Uruguay - 2018.10.31 10:02

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