Nickel 200 Welding
Nickel 200 welding can be done using any welding process, but the most common are gas tungsten arc welding (GTAW) and shielded metal arc welding (SMAW). Nickel 200 also known as Alloy 200 is a Nickel alloy.
Nickel 200 is an nickel alloy that offers excellent corrosion resistance. It is frequently used for welding because it is easy to work with and can be welded to itself and other metals.
What is Nickel 200?
Nickel 200 is a commercially pure nickel alloy that offers superior corrosion resistance.
It also has excellent mechanical and electrical properties, making it ideal for use in a wide range of industries. Nickel 200 is readily available in both plate and sheet form.
The UNS Number of Nickel 200 is N02200. ASME Section IX Welding P Number for Nickel 200 is P Number 41. Nickel 200 can be used for service temperature up to 600º F.
Nickel 200 Material Specification
Nickel 200 is a versatile engineering material that offers excellent mechanical and metallurgical properties.
It is widely used in a variety of industries, from aerospace to chemical processing. Here is a rundown of the most important Nickel 200’s material specification:
- ASTM B-160: Rod & Bar
- ASTM B-162: Plate, sheet & shape
- ASTM B-163: Seamless Tubes
- ASTM B-366: Fittings
- ASTM B-725: Welded Pipe
- ASTM B-730: Welded Tube
Nickel 200 Chemical Composition
Nickel 200 has exceptional resistance to many corrosive environments, including alkalis, organic materials, and acids. It is widely used in the chemical industry because of its superior corrosion resistance.
The average composition of Nickel 200 is listed in the table below.
| Element | Composition |
|---|---|
| Nickel % | 99 minimum |
| Iron% | 0.40 Maximum |
| Silicon % | 0.35 Maximum |
| Manganese % | 0.35 Maximum |
| Copper % | 0.25 Max. |
| Sulfur % | 0.010 Max. |
| Carbon % | 0.15 Max. |
Nickel 200 Mechanical Composition
In terms of mechanical properties, Nickel 200 has a yield strength of 15 ksi and an ultimate tensile strength of 55 ksi.
The yield strength vary for annealed grade as 15 Ksi minimum and for as-rolled is 20 Ksi minimum. (Reference: ASTM B162).
| Property | Value |
|---|---|
| Tensile Strength, Ksi (MPa) | 55 (380) minimum |
| Yield Strength, Ksi (MPa) | 15- 20 (100- 135) |
| % Elongation | 30- 40 minimum |
Nickel 200 Welding Rod
Nickel 200 Welding Rod are ENi-1 (AWS A5.11) for stick welding applications and ERNi-1 (AWS A5.14) for TIG Welding and MIG Welding applications.
ENi-1 is a versatile, easy-to-use welding rod that can be used for stick welding. It produces high quality welds with excellent strength and ductility.
ENi-1 is used for welding of wrought & casting of Nickel 200 and Nickel 201 materials.
Nickel 200 Welding Wire
Nickel 200 Welding Wire is ERNi-1 as per AWS A5.14 specification. ERNi-1 is having 96% Nickel and 3% Titanium as its alloying composition.
ERNi-1 is used for welding of ASTM B160, 161, 162 and 163 materials (Nickel 200 & Nickel 201 alloys).
For best results, use ERNi-1 welding wire rod with an argon gas shield for TIG welding and MIG welding.
When using Nickel 200 welding rod, it is important to keep the heat low heat input.
Nickel 200 Stick Welding (SMAW)
Nickel 200 Stick Welding (SMAW) is carried out using ENi-1 (AWS A5.11) stick welding electrode. ENi-1 contains 95% Nickel and 2.5% Titanium.
This welding rod can be used for welding of all Nickel 200 and Nickel 201 grades.
Welding using stringer bead and low heat input is advised when welding Nickel 200.
Nickel 200 TIG- MIG Welding
Nickel 200 TIG-MIG welding is carried out using the ERNi-1 as per AWS A5.14 specification.
ERNi-1 is having 96% Nickel and 3% Titanium as its alloying composition.ERNi-1 is used for welding of ASTM B160, 161, 162 and 163 materials (Nickel 200 & Nickel 201 alloys).
For best results, use ERNi-1 welding wire rod with an argon gas shield for TIG welding and MIG welding. When using Nickel 200 welding rod, it is important to keep the heat low heat input.
Welding Nickel 200 to Carbon Steel
Welding Nickel 200 to Carbon Steel is carried out using ENi-1 for stick welding and ERNi-1 for TIG and MIG Welding. Follow the above recommendation for welding. No any other special precaution is required.
Welding Nickel 200 to Stainless Steel
Welding Nickel 200 to Stainless Steel can be carried out using:
- ENi-1 or ERNi-1
- ENiCrFe-2
- ENiCrFe-3
- ERNiCr-3
Nickel 200 vs Nickel 201
The two most common types of commercially pure nickel are Nickel 200 and Nickel 201. They differ in properties due to the different amount of impurities present. Nickel 200 is 99.6% pure, while Nickel 201 is 99.8% pure.
Nickel 200 has excellent corrosion resistance and is resistant to most alkalis and acids. It is also resistant to stress-corrosion cracking.
These properties make it ideal for use in chemical processing, food processing, and pollution-control equipment.
Nickel 201 has slightly lower corrosion resistance than Nickel 200, but it has better mechanical properties.
It is more ductile and has a lower coefficient of thermal expansion. These properties make it ideal for use in electronic components and fasteners.
