It is imperative to select the right washer material type to ensure your Belleville washers hold up to your specific application requirements. Established in 1949, Solon Manufacturing Co. designs and manufactures Solon Belleville Springs, disc springs (DIN EN 16983 & DIN EN 16984), and washers, in multiple materials for use in a variety of applications across many different environments. We can fill large orders and custom manufacture washers in a wide variety of standard materials (6150, Inconel 718, 17-PH Stainless Steel, 301 Stainless Steel, H-13 Tool Steel) and exotic materials (510 Phosphor Bronze, 1704 Stainless Steel, Inconel X750, A286, Custom 450).
For indoor/outdoor service, electrical and corrosive atmospheres
Abrasion-resistant | Fully magnetic
Suitable for many general engineering applications requiring high tensile strength and toughness.
Specific Applications: Typically used in a closed system with oil or grease contact.
Standard finish: Mechanically Zinc Plated with Trivalent Chromate (ASTM B695, Class 12, RoHS compliant)
Also available with scale-free, oil finish, or a Zinc Phosphate and oil finish.
Inconel 718
Operating temperature range
-400°F / -240°C to 1100°F / 594°C
Specific Applications: Inconel 718 is ideal for corrosive environments in which there is contact with drilling mud, sour gas or for non-magnetic applications. It is also ideal for indoor/outdoor service and high-temperature applications or corrosive atmosphere.
Specific Applications
Non-magnetic
Available in NACE MR0175 Condition
Standard finish: Scale-free plain finish
H-13 Tool Steel
Operating temperature range
Ambient to 1100°F / 594°C
This is the most commonly used material for our Flange Washers due to its excellent strength and working temperature range, of ambient to 1100°F.
For indoor/outdoor service and high-temperature atmospheres
Fully magnetic
Finish: Natural finish with light oil-coat
17-7PH Stainless Steel
Operating temperature range
-320°F / -200°C to 550°F / 288°C
Working temperature range
-400°F to 550°F
For indoor/outdoor service, electrical and corrosive atmospheres
Not recommended for extreme chloride or fluoride applications without plating or reduced stresses
Suitable for cryogenic applications & applications when bolt loads are much lighter.
Highly magnetic
Standard material condition TH1050 per AMS 2759/3
Alternate available material conditions
TH1075
RH950
CH900
Standard finish: Scale-free plain finish
Also available: Sulfamate nickel plated (AMS 2424)
301 Stainless Steel – ASTM A666
Operating temperature range
-400°F / -240°C to 550°F / 288°C
For indoor/outdoor service, electrical and corrosive atmospheres
Available in Carbon Steel, 17-7 PH Stainless Steel, 301 Stainless Steel and Inconel. Carbon steel disc springs are finished with the standard corrosion protection of phosphate & oil.
50 CrV 4 (6150 Alloy Equivalent)
17-7 PH Stainless Steel
Stainless Steel 301
Inconel 718
Flange Washers
Typical flange washer materials are H-13 Tool Steel, 17-7 PH Stainless Steel, Inconel 718, 17-4, Waspaloy, Custom 450, etc.
17-7PH
718
H-13 Tool Steel
17-4 Stainless Steel
Waspaloy
Custom 450
Imperial Washers
17-7PH
301
718
6150 Alloy
Metric Washers
17-7PH
301
718
6150/1074
H-13
Finishing
In addition to zinc plating, Solon offers other finishing methods to protect parts such as nickel plating, yellow chromate, black oxide, and oil coatings. Natural finish, as well as custom finish are also available options.
Mechanical Plating
Mechanical plating is also available. Mechanical plating’s greatest advantage is its ability to overcome hydrogen embrittlement problems. This is especially important for work pieces that have a hardness greater than HRC 40, while still offering equivalent corrosion protection of electroplating. Mechanical plating is normally applied to carbon steel springs.
Deburring
Substantially, all of Solon® Belleville Springs and washers are deburred to the Solon Manufacturing Co. standard radius specification. Belleville springs and washers with a thickness greater than .312 will typically have a machined radius. H-13 Flange Washers will have machined contact points at load bearing corners.
Contact Solon For Solon Washer Material Inquiries
Contact us for more information regarding our Belleville springs and washers today.
Our website uses cookies for the functionality of the website. For more information on how we use our cookies, see our privacy policy.
Configure Your Cookies Settings
+ Functional (Non-Optional) Always Active
These cookies are required for optimum operation of the website, and cannot be configured. They allow us to offer you the key functions of the website (language used, display resolution, account access, shopping bag, wish list, etc.), provide you with online advice and secure our website against any attempted fraud.
+ Performance
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance. In order to obtain accurate analytics while enabling you to make your choice regarding the use of cookies and other tracking tools, we've implemented a dedicated solution allowing us to record and counting your preferences. If you prefer not to be tracked, this system will help us complete our analysis and reports by looking at other users similar to you. This information doesn't let us know who you are or keep tracking your browsing on our website.
+ Advertising
These cookies lets us use your data to make recommendations to you when you use other websites. They do not store directly personal information, but are based on uniquely identifying your browser and internet device. They allow our advertising partners to collect information and customize ads based on what you look at. Without these cookies, we won’t be able to show you personalized ads based on your interests, instead they’ll be more generic.