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CNC Machining Materials

Torlon

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At a glance

Processes

CNC Mill
CNC Lathe

Lead Time

As fast as 7 days

Finishing Options

Available as-machined

Tolerance

With drawing: as low as +/- 0.005 mm
No drawing: ISO 2768 medium

About the Material

Torlon PAI (Polyamide-imide) 4301 is a wear-resistant grade of PAI that contains amounts of graphite and PTFE. Torlon PAI has a low coefficient of friction, which makes it well-suited to applications related to seals, valve seats, and bearings. In addition, Torlon PAI is a high strength material with great dimensional stability.

Material Properties

Torlon PAI (4301)

Yield Strength (tensile)

15,000 PSI

Elongation at Break

5%

Hardness

Rockwell M106

Density

1.44 g/cm^3
0.05lb / in^3

Material Finish

Depending on the intended part size/geometry, Torlon PAI is available in black, brown, or yellow (and can be machined to a variety of surface finishes).

Design Recommendations

Min Wall Thickness

0.5 mm (0.02 in)

Min End Mill Size

0.8 mm (0.03 in)

Min Drill Size

0.5 mm (0.02 in)

Max Part Size

1200 x 500 x 152 mm [x,y,z] (mill) 152 x 394 mm [d,h] (lathe)

Undercuts

Square profile, full radius, dovetail profiles

Radii : Depth

Depth must not exceed 12x drill bit diameter. For end mills, depth must not exceed 10x tool diameter.

Cost Saving Tip

To reduce costs, limit the number of part setups, the number of inspection dimensions or tight tolerances, and deep pockets with small radii.

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