Monel 400 Tube

Monel 400 is a nickel and copper alloy which provides excellent resistance to corrosion, high temperatures, and stress cracking. With its remarkable properties, Monel 400 tubes have been widely used for custom projects that require durability, strength, and flexibility. However, working with Monel 400 tubes can be challenging because of their toughness and hardness. This article will show you how to bend and shape Monel 400 tube correctly for your custom projects. We will analyze the methods, tools, and tips needed to help you create stunning results. So, let’s dive in!

How to band & Shape Monel 400 Tube

Bending Techniques:

Bending tubes may seem straightforward, but it takes skill, patience, and precision. There are several methods of bending Monel 400 tubes, including hand bending, rotary draw bending, and induction bending. Hand bending, as the name implies, is the simplest and most accessible method. You can use a handheld tube bender or a vice to bend the tube to your desired angle. Rotary draw bending uses a machine that pulls the tube through a die while applying pressure to bend it. This method is ideal for precision bending or tight radii. Induction bending uses a heating coil to heat the tube’s specific area, making it more pliable. This method is suitable for complex shapes and large diameters. Whatever the bending method you choose, use a lubricant to prevent cracking or splitting.

Shaping Techniques:

Shaping Monel 400 tubes can be more complicated than bending them. Since Monel 400 is a hard material, it requires special tools and techniques for shaping. Rolling, flaring, and swaging are the most common among these techniques. Rolling is a method that involves passing the tube through three rollers to shape it into a curve, cone, or sphere. Flaring is used to enlarge the end of the tube for better fittings and coupling. Swaging is the process of reducing the diameter of the tube by compressing it. This method is useful for tube-end forming and close tolerances. To shape Monel 400 tube, use a proper combination of heating, lubrication, and pressure.

Tools and Equipment:

To bend and shape Monel 400 tube, you will need specific tools and equipment. These include a tube bender, die, mandrel, lubricant, heating device, and swage tool. The tube bender is the central tool for bending the tube. You can either use a handheld or hydraulic bender. The die and mandrel are necessary accessories that connect to the bender and determine the tube’s radius and angle. For shaping, a flaring tool and a swage tool are required. Lubricants such as oil, wax, or soap can prevent scratching, galling, or scuffing. Finally, a heating device like an induction coil or a propane torch is essential for shaping methods that require heating.

Tips for Success:

Bending and shaping Monel 400 tube is not easy, but you can achieve excellent results with a few tips and tricks. First, choose the correct method of bending or shaping that suits your project design. Second, use the right combination of tools, mandrels, and lubricants to avoid damage or defects. Third, plan your bend or shape sequence to prevent interference or accidents. Fourth, follow the heating guidelines for shaping techniques that require heating. Fifth, practice on scrap or extra pieces before bending or shaping your final product.


Monel 400 tube is an excellent material for custom projects that require strength, durability, and corrosion resistance. Bending and shaping Monel 400 tube requires practice, patience, and precision. Several bending and shaping methods exist, including hand bending, rotary draw bending, and induction bending. Shaping techniques like rolling, flaring, and swaging can create unique and intricate shapes. To bend and shape Monel 400 tube effectively, use the right combination of tools, mandrels, and lubricants and follow the guidelines and heating protocols. With the tips and techniques in this article, you can craft your custom projects with Monel 400 tube like a pro!