Technical Data
High performance copper alloy
NKT322
1. Introduction
Nikko Metal Manufacturing developed a new original alloy, NKT322. NKT322 is a Fe bearing titanium copper modified by optimized manufacturing process. NKT322 highly improved strength and bend formability comparison with conventional titanium copper.
This technical brochure should help understand NKT322.
This data included are normal numbers.
2. Features世界上最大的兔子
H igh strength and good bend formability
2 Good stress relaxation property at elevated temperatures
3. Chemical Composition
4. Physical Properties
Table.2 Physical properties of NKT322
Electrical Conductivity10 13 %IACS 20
Specific Resistance132 172 n m 20
Thermal Conductivity66.79 W/mK Thermal Expansion Coefficient18.0 10-6/K 20 to 200 Young’s Modulus 120 kN/mm2
Density8.70 g/cm3
5. Mechanical Properties
Table.3 Mechanical properties of NKT322Temper Tensile Strength N/mm 2 0.2% offt
新高校老师
Yield Strength
N/mm 2 Elongation什么的枫树
%
Hv EH 970 920 1020 900 850 950 15 min 10.0 310SH 1020 970 1100 950(900 1000)
鲜肉小笼包10 min 6.0 330ESH
1070 1010 1200 1000(950 1050)
大豆的功效5 min 3.0
340
Upper numbers: Typical mechanical properties Lower numbers: Requirements for each temper
6. Bend Formability
W shaped bending test was performed to evaluate minimum bend radius without surface crack (MBR). Table.4 shows MBR/t (Minimum Bend Radius /Thickness). Fig1 shows typical surface appearance. NKT322 has high strength and even better good bend formability.
螺旋腿怎么矫正specimen size: thickness 10mm w 30mm l
Fig.1 Surface appearance of 90 W shaped bending test specimens NKT322
(Bad way R/t 1)
Temper:SH
天蝎座的女生Thickness: 0.1mm(TS=1.05GPa)
Temper:SH
Thickness: 0.08mm(TS=1.03GPa)
7. Stress Relaxation Resistance
Stress relaxation resistance is highly important for maintaining the contact force for long period of time or at elevated temperatures. Fig.2 exhibits the stress relaxation resistance of NKT322. It has excellent stress relaxation resistance in comparison with beryllium copper.
Fig.2 Stress relaxation resistance of NKT322 at 150
8. Stress-Strain Curve
Fig.3 5 shows the Stress-Strain curve for NKT322.
班组长的职责
Rolling direction
Transver direction
Fig.3 Stress-Strain curve for NKT322-EH
