PEEK vs ULTEM: What’s the Difference and Which Should You Choose?

PEEK vs ULTEM: What’s the Difference and Which Should You Choose?

PEEK and ULTEM are high-performance thermoplastics used when standard plastics cannot provide enough heat resistance, dimensional stability, mechanical performance, or electrical reliability. PEEK is a semi-crystalline polyetheretherketone known for higher-temperature capability, broad chemical resistance, wear performance, fatigue strength, and demanding mechanical service. ULTEM is SABIC’s trade name for polyetherimide (PEI), an amorphous material valued for…

UHMW vs ULTEM: What’s the Difference and Which Should You Choose?

UHMW vs ULTEM: What’s the Difference and Which Should You Choose?

UHMW and ULTEM solve very different engineering problems. UHMW-PE is usually selected for low friction, abrasion resistance, impact toughness, quiet sliding, and economical wear performance. ULTEM is SABIC’s trade name for a family of polyetherimide (PEI) resins and is typically considered when stiffness, heat resistance, electrical insulation, and dimensional stability are more important. The better…

15-5 PH vs 17-4 PH Stainless Steel CNC Machining: Which Is Better for Precision Parts?

15-5 PH vs 17-4 PH Stainless Steel CNC Machining: Which Is Better for Precision Parts?

15-5 PH and 17-4 PH are both martensitic precipitation-hardening stainless steels used when a component needs substantially more strength than conventional 300-series stainless steel while retaining useful corrosion resistance. For CNC machining, however, the two grades should not be treated as interchangeable. The final choice affects raw-material availability, transverse mechanical properties, heat-treatment planning, tool wear,…

End of content

End of content