Jet Kote™ 125

Premium-Quality HVOF Coating

JK 125 is a thermal spray powder developed specifically for the deposition of high-quality HVOF coatings. This HVOF powder contains mixed (W,Cr)C and WC carbides in a nickel and nickel-chrome matrix. When deposited correctly using the Jet Kote HVOF system, JK 125 coatings are equivalent to Praxair D-Gun® LW-5 coatings.

Typical Applications

JK 125 HVOF coatings have improved corrosion resistance in
some environments compared to WC/Co coatings, because of the nickel and nickel-chrome matrix. They have excellent resistance to salt, sea water and amine environments, and moderate resistance to sulfuric acid. They are not recommended for nitric or hydrochloric acid environments.

JK 125 coatings are also recommended for wear applications where oxidation resistance superior to WC/Co is required. They are used for wear resistance in oxidizing atmospheres up to 650°C (1200°F) or higher, for example on seals and bearings for process fluid pumps and on cutters for food processing. Sub-sea and process plant valves are other typical applications. As it contains no cobalt, JK 125 may also be considered for nuclear applications.

Application Example

JK 125 has been deposited by Kennametal Stellite™ on InconelTM 625 nuclear pump plungers as a fully OEM-qualified substitute for Praxair D-Gun LW-5. The coating properties such as bond strength, porosity, hardness and microstructure have all been verified as equivalent to those of Praxair D-Gun LW-5 coating.

Finishing of JK 125 HVOF Coatings

JK 125 coatings are typically finished to 8–16 μ-inches by wet grinding with open friable diamond wheels. They can also be super finished to below 1 μ-inch (0.025μm) if required.


Typical Coating Microstructure, JK 125

Nominal Powder Properties

Mass Composition: A mixed carbide with nickel [70%(W,Cr)xCy 25%WC 6%Ni]
Nominal Size: –53+10μm (–270 mesh+10μm )
Production Method: Agglomerated, sintered and densified


Jet Kote 125 Data Sheet

Check out our Jet Kote 125 data sheet for additional information.

View Now
You are about to add to your My Solutions page. Do you want to proceed?
Please adjust the following properties from

ISO Catalog Number

ANSI Catalog Number

to find similar products.


You should be logged to see your dashboard information
Session expired due to inactivity, please login again
The product/s () you were trying to add to the cart is/are not available, please contact customer service
item(s) successfully added to the cart
View Cart

. Please enter the desired qty for the material(s) you want to include in your promotion or Proceed Without Promotion and only your base materials will be added to the cart.

Minimum quantity should be

SAP Material Number ISO Catalog Number Grade    

Thank you for your registration, pending approval & completion of the registration, your access is currently limited. Full utilization of product search capabilities & collaboration space is available and will remain. Please allow 2 business days for registration completion.

Thank you for your successful registration. You now have immediate access to log in and utilize the site.

You are about to leave the Solution building process.

Are you sure you want to leave?