Nickel-Copper Alloy Tubes

Nickel-Copper Alloy 400 – UNS N04400 – shows high strength and excellent corrosion resistance in a range of acidic and alkaline environments, and especially suitable for reducing conditions. It also has good ductility and thermal conductivity.

UNS No

N04400 – BSI No. BS3074NA13

Chemical Comp. (%)

Ni 63 min / Cu 28 ~ 34 / Fe 2.5 max / Mn 2.0 max / C 0.3 max / Si 0.5 max / S 0.024 max

ASTM Spec.

B163, B165, B828

ASME Spec.

SB163, SB165, SB828

Applications

Marine engineering, chemical and hydro-carbon processings, heat exchangers and alkylation units.

Temper

Annealed / Stress Relieved

Properties *

Metric

English

Density

8.80 g/cc

0.318 lb/in³

Tensile Strength – Annealed min.

483 MPa

70 ksi

Tensile Strength – Stress Relieved min.

586 MPa

85 ksi

Yield Strength – Annealed min.

193 MPa

28 ksi

Yield Strength – Stress Relieved min.

379 MPa

55 ksi

CTE, linear

14.2 μm/m•°C @ 100°C

7.7 in/in/°F x 10-6 @ 200°F

Specific Heat Capacity

445 J/kg•°C @ 100ºC

0.105 Btu/lb/°F @ 200ºF

Thermal Conductivity

24.0 W/m•°C @ 100°C

167 Btu-in/h/ft2/°F @ 200°F

Melting Point

1300 – 1350 °C

2370 – 2460 °F

* The information provided in this page includes typical values “only” for general reference and information. It is not intended for specification, design or engineering purposes.