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Engineered metals
for precision industries

Data sheet - NICLAFOR 1000 / Wieland-L96

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NICLAFOR 1000 / Wieland-L96
CuNi9Sn6

Cu reste Ni8.5-9.5 Sn5.5-6.5

Chemical composition

CuBAL

Ni8.5-9.5

Zn0.5 max

Pb0.02 max

Sn5.5-6.5

Fe0.5 max

Mn0.05-0.30

Mg0.15 max

OtherNb 0.1 max

Alloy name
RLSA no.560
EN standard
DIN standard
UNS no.*C72700

*Unified Numbering System (USA)

Characteristics and main uses

Niclafor 1000® / Wieland-L96 is a Copper-Nickel-Tin (CuNi9Sn6) based alloy with high strength and low thermal conductivity. The high strength and excellent resistance to thermal relaxation are derived from spinodal decomposition. The combination of strength and formability is similar to that of beryllium copper and titanium copper alloys.

Main uses

Electronics industry uses CuNi9Sn6 for springs, miniaturized signal connectors and EMI shields.

Additionally, the high strength allows Niclafor 100 / Wieland-L96 to be used in eyeglass arms and hinges as well as mechanical components in wristwatches.

Physical properties Units
Density (20°C) 8,90 Kg/dm³
Melting point 968-1078 °C
Longitudinal elasticity modulus 130 GPa
Thermal conductivity W/m·K
Electrical conductivity >5.22* m/Ω·mm²
Electrical resistivity <0.1916* µΩ·m
Linear expansion Coefficient 17,25 10⁻⁶·K⁻¹
IACS (International Annealed Copper Standard) 9* %
Poisson's ratio 0.34
Capabilities
Corrosion resistance4
Hot deformation1
Cold deformation4
Electrodepositing4
Diamond cutting4
Nitriding
Mechanical polishing4
Welding without filler
Brazing4

1 poor | 2 average | 3 good | 4 very good | - no info

Heat Treatment / Hardening
Annealing temperature 720-820 °C
Temperature for stress relief treatment °C
Hardening temperature 250-350 °C
Hardening treatment time 2 - 4 h hour(s)

Comments on heat treatments

We can make TM (250-380°C / 24H) or TS (250-380°C / 2 to 4H) which will increase the hardness up to + 150HV and the Rm (up to +500 N/mm^ 2)

Alloy mechanical properties

NICLAFOR 1000 / Wieland-L96
Possible hardness range 90 - 360 HV
Possible Rm range 410 - 1100 MPa

Non-exhaustive list of grades

Grade According to standard Hardness
(HV: Vickers)
min - max		 Rm
(MPa)
min - max		 Rp 0.2
(MPa)
min - max		 Elongation
(%) where L0 = 100mm
min - max		 L0 Grain size
(µm)
min - max
TB 90 - 125 420 - 500 ≥ 200 ≥ 30
TD1 140 - 180 460 - 560 ≥ 300 ≥ 15
TD2 160 - 200 540 - 640 ≥ 400 ≥ 10
TD3 200 - 240 620 - 720 ≥ 550 ≥ 3
TD4 220 - 260 700 - 820 ≥ 600 ~1
TDX ≤ 320 ≥ 780 ≥ 650 ~1
TF 230 - 270 740 - 860 ≥ 510 ≥ 10
TH1 270 - 310 850 - 950 ≥ 650 ≥ 8
TH2 290 - 320 880 - 980 ≥ 720 ≥ 8
TH3 310 - 340 950 - 1050 ≥ 800 ≥ 4
TH4 320 - 360 1000 - 1100 ≥ 900 ~3

Do not hesitate to ask us for your specific grades and parameters. We can make productions according to your needs.

Contact us

Do not hesitate to contact us for a quote, any questions or advice. We will get back to you as soon as possible. 

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