Astec Tubes is a leading supplier and manufacturer of CuNi 70/30 instrumentation Tube fittings. We offer an entire range of Copper - Nickel pipe fittings and we take pride in handling a diverse group of clients. Our offered fittings come in various sizes and specifications. These fittings contain a high percent of Copper and a comparatively lesser amount of Nickel. Apart from that these fittings contain a marginal amount of iron and manganese. These are highly resistant saltwater, brine water, and seawater. A similar situation occurs when it comes in contact with the volatile environment. This property of these fittings makes these apt for utilization in oil exploration and underwater operations and many more marine applications. The presence of iron content makes these fittings fairly resistant to all kinds of corrosion even at elevated temperatures.