Material Selection Guide: Aluminum, Stainless Steel, and Titanium Alloy Comparison
Compare aluminum, stainless steel, and titanium for CNC machining. Analyze strength, weight, cost
Heat- and chemical-resistant — steady in harsh environments








PPS (polyphenylene sulfide) is a semi-crystalline high-performance engineering plastic with a continuous use temperature of 200-240°C, maintaining good mechanical strength and rigidity at elevated temperatures.
PPS chemical resistance ranks second only to PTFE; it is almost insoluble in any organic solvent below 200°C. It is naturally flame retardant (UL94 V-0) with extremely low water absorption (under 0.05%), delivering outstanding dimensional stability.
PPS is relatively brittle with edge chipping concerns during machining. We optimize tool geometry and cutting parameters to ensure edge quality, maintaining batch dimensional consistency within ±0.01mm. We specialize in batch production, 100 pcs MOQ, lead time 15-25 days.
The following table lists typical mechanical, thermal, and physical properties for this material. Actual values may vary by grade and temper.
| Property | Value | Unit |
|---|
We stock multiple grades for different application needs. Each grade offers distinct properties optimised for specific uses — click to view detailed specifications, machining advice and typical applications.
Unfilled PPS with high purity and good machined finish for precision small parts and corrosion-resistant components.
View Details Glass-Filled40% glass fibre greatly raises strength and stiffness; the most widely used PPS grade.
View Details Carbon-FilledCarbon fibre combines high strength with electrical conductivity and static dissipation.
View Details Wear-Resistant GradePTFE or solid-lubricant filled wear grade with low friction for oil-free bearings.
View Details Conductive GradeHighly conductive grade with controlled surface resistivity for semiconductor handling and ESD parts.
View Details Food GradeFood-contact compliant PPS for food machinery and potable water system parts.
View DetailsA selection of parts machined from this material.
This material is widely used across multiple industries for various applications, from precision prototypes to end-use production parts.
Surgical instruments, housings
Structural brackets, panels
Engine components, housings
Heat sinks, enclosures
Motor mounts, brackets
Fixtures, jigs, tooling
Frames, handles, cases
Fittings, valves, hardware
| Finish Type | Description | Ra (typical) |
|---|
The questions engineers ask most about machining, surface quality and selecting this material.
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Send your STEP / DWG / PDF drawing and get a detailed quote with free DFM analysis and process recommendations within 2 hours. No minimum order — from 1 piece.