Eclipse Magnetics Metallurgy and Property Matrix - Permanent Magnets supply you can build on

Material selection starts with the property that actually limits the design.

Energy product

NdFeB is considered when compact force is the primary driver, while ferrite remains useful when available volume and cost stability matter more than peak strength.

Temperature behavior

SmCo and carefully selected NdFeB grades are compared for irreversible loss risk, thermal cycling and the safety margin needed near the operating ceiling.

Coating compatibility

Surface protection is reviewed against humidity, abrasion, washdown chemistry and handling damage so the magnet survives the real service path.

Force validation

Pull force is treated as a test condition, not a universal number. Steel thickness, air gap, pole area and surface condition are recorded before values are accepted.

Decision metrics used in magnetic material reviews.

4magnet families compared

6coating routes reviewed

3force test variables recorded

5certificate sets mapped

Material family	Primary strength	Watch point	Typical review output
NdFeB	High force in compact packages	Corrosion and heat margin	Grade, coating and magnetization proposal
Ferrite	Cost-stable ceramic performance	Lower energy density	Geometry and volume trade-off note
SmCo	High temperature stability	Material cost and brittleness	Severe-duty justification memo
Bonded materials	Shape flexibility	Reduced magnetic output	Manufacturing feasibility review

Request a property matrix for your magnetic assembly.

Share the operating temperature, mating material, target force, coating exposure and compliance expectations. Eclipse Magnetics will map the magnetic material options to the evidence your team needs.