Seven families, connected to the application.
Explore all products →Share the drawing, contact conditions and acceptance criteria for your component.
Material selection guide →Explore the contact, medium and mechanism.
All applications →Share the drawing, contact conditions and acceptance criteria for your component.
Material selection guide →From an open material question to an agreed component requirement.
Explore services →Share the drawing, contact conditions and acceptance criteria for your component.
Material selection guide →Industry and sourcing guides for twelve target markets.
Explore all markets →Share the drawing, contact conditions and acceptance criteria for your component.
Material selection guide →Match the component programme, purchasing role and project responsibilities.
Explore partnerships →Share the drawing, contact conditions and acceptance criteria for your component.
Material selection guide →Corporate background, practical purchasing information and direct contact.
Explore company →Share the drawing, contact conditions and acceptance criteria for your component.
Material selection guide →Material selection compares candidate ball materials against the complete application rather than a single headline property. Define the fluid or atmosphere, temperature, contact load, motion and acceptance first. Then shortlist exact grades and conditions, identify tradeoffs and set a useful evaluation. The output is a reasoned comparison with clear next questions, not an automatic approval of every use associated with a material family.
Compare 316/316L, PTFE or another candidate against the actual medium at every stage and complete cleaning cycle. State concentration, temperature, exposure duration and contact conditions. This route is useful when corrosion, contamination or chemical interaction drives the problem and an industry name alone cannot establish compatibility.
Use the contact duty to compare hardened steel, stainless or ceramic routes. Include the race or seat, lubrication and impact. A harder ball does not automatically improve the whole assembly under representative conditions; the opposing surface and load path may become limiting when material changes.
Review copper, aluminium or another defined material when the component needs a particular interface or system property. Explain the actual electrical, thermal, mass or purity objective. The shortlist should distinguish bulk material references from the behavior and qualification of the finished contact for that project.
A material change can solve one problem and create another. A corrosion-oriented stainless ball may change wear behavior; a polymer replacement can change stiffness and thermal movement. Selection review starts with those interactions. Describe the existing material, the reason for considering a change and the requirements that must remain fixed. A focused comparison can then explain which candidates deserve evaluation and what evidence would support or exclude each option.
List normal operation, cleaning, storage and any exceptional conditions that affect the ball. A fluid component may encounter a cleaner that is more demanding than its normal medium. A mechanical contact may operate differently when lubricant is absent or particles enter. Include the mating material, motion and acceptable deformation, not just the sphere's size. For a nylon candidate, conditioning and environmental effects can matter to the dimensional acceptance. For PEEK, the exact compound and combined thermal and contact requirements remain relevant. Identify which facts are known from records and which need an application test. A shortlist built on this envelope is more useful than a table that ranks material names while leaving exposure and contact conditions undefined and untested.
Keep the same operating assumptions when assessing each option. If the problem is a wet seating contact, compare chemical compatibility and the mechanical response of the entire ball-seat pair. 440C and 316L represent different hardening and corrosion priorities; they are not interchangeable versions of stainless. A PTFE alternative introduces a different deformation and thermal response again. Explain the reason each candidate remains in the comparison, the likely limiting question and the evidence needed. Avoid collapsing everything into a single best-material score. A practical output separates a promising candidate from an approved choice, and shows where a proposed material change also requires a contact, retention or inspection change. Record which candidate would require a different seat, lubricant or dimensional acceptance basis.
A producer datasheet can establish useful material context, but its grade, condition, test and product form must match the comparison. Do not turn a reference property into a finished-ball guarantee. Identify the evidence needed for exact material identity, surface preparation and the component's functional result. Where two candidates remain plausible, use a focused sample evaluation to test the property that changes the purchasing decision. Keep the ball, mating parts and conditions identifiable. If the application has regulated contact, special purity or magnetic requirements, name the actual acceptance and document scope. The review should end with a clear shortlist and evaluation question, not a general recommendation whose limits disappear when it is passed to purchasing. Keep those requirements identified separately.
| Selection input | Describe it | What the comparison must address |
|---|---|---|
| Current problem | Corrosion, wear, leakage, mass or another limit. | The actual reason to change. |
| Medium and cleaner | Chemistry, concentration and exposure cycle. | Compatibility throughout the operating sequence. |
| Thermal conditions | Operation, cleaning and relevant transients. | Material and dimensional behavior. |
| Contact pair | Mating material, force, movement and lubricant. | Wear, marking and deformation. |
| Finished geometry | Drawing, form and surface acceptance. | Fit and inspection after material change. |
| Required evidence | Identity, cleanliness and application records. | A measurable approval basis. |
Describe the existing component and the problem a new material must solve. Identify fixed drawing and application requirements, the current evidence and whether the project concerns a new design, a failure or a proposed substitute.
List exact candidate grades and conditions against the same operating envelope. Explain the relevant benefit, the limiting tradeoff and any required change to the mating contact or inspection, rather than rank materials by one isolated property.
Identify which document, measurement or assembly evaluation can distinguish the remaining candidates. Define the test conditions and responsible approval owner so the result can answer a specific material-selection question and support a meaningful purchasing decision.
Link the accepted choice to its exact grade, condition, geometry and evidence. Preserve the evaluated application conditions and permitted alternatives when the requirement moves to quotation, sampling or a later order with another quantity or source.
No. Applications within one industry can involve different fluids, cleaners, loads and contact geometries. Describe the actual operating envelope and component function. That information allows a useful material comparison; a general chemical, food or marine label cannot establish universal compatibility or finished-component acceptance.
The contact pair determines wear, marking, deformation and closure behavior. Changing the ball can move the limiting problem into the seat or race. Include its material and condition, movement and load so the review addresses the complete interface rather than a sphere considered in isolation.
Not necessarily. A reference value belongs to a particular material, condition and test. The component also sees load, medium, time and dimensional requirements. Compare candidates under the actual combined conditions instead of treating one isolated temperature figure as an application-independent operating limit.
Only after reviewing the exact compound and component requirements. Fillers can change several properties, including contact and dimensional behavior. State the intended grade and reason for the change, then identify the appropriate material evidence and evaluation. A common base-polymer name does not establish equivalence.
No. Exact identity is one requirement, while preparation, contamination, documentation and the applicable contact program are separate questions. Specify the actual requirement and evidence scope. The material's general reputation cannot approve every finished component for a regulated, clean-process or specialist application.
A useful result identifies the relevant candidates, common operating assumptions, tradeoffs and the next evidence needed. It can also show where a material change affects the drawing or mating component. Final application acceptance remains tied to the actual evaluated configuration and the component owner's requirements.
Share the current grade, operating envelope and the result you need from a comparison.