ULTEM® PEI Seamless Tube®
now available from Drake Plastics
Drake Plastic Ltd. Co. specializes in stock
shapes of ultra-performance polymers Torlon PAI, PEEK, PEK (HT), PEKK, Ryton
R-4 PPS and now Ultem 2300 and 2400 PEI.
Starting with the right size and shape based on
final part geometry is critical when machining high performance plastic
materials like Ultem 2300, 2400 or others. The benefit of Drake's extruded Seamless
Tube over Rod is not just from saving the material from the ID, but also from avoiding
the machining time and tooling wear- which can be a considerable cost, especially
in drilling fiber reinforced materials like Ultem 2300 and 2400.
But the biggest advantage of Drake Seamless Tube is performance. The technical advantages of Seamless
Tube include no seam, or weld line. It exhibits uniform flow through the
cross section with the polymer and fiber orientation resembles a spring.
This fiber orientation results from the flow
profile which is enabled by Drake Plastics' Seamless Tube extrusion technology.
The fiber orientation results in high strength and stiffness in the hoop
direction. Independent burst tests conducted by a Drake Plastics customer have
consistently shown 30% Glass Fiber Reinforced Seamless Tube has twice the
rupture strength of cylindrical parts machined from rod. This hoop strength
advantage is a major benefit for parts under either internal or external
pressure or loading. Another advantage is improved dimensional stability of
precision machined parts. Because of the orientation of the fibers, the
coefficient of thermal expansion of the OD and ID closely matches resin data
sheet values (Resin data sheet CLTE values are reported in fiber flow direction
which is much lower than crossflow). This can solve many fit and finish
problems, especially in devices that are thermally cycled and housed in metal
or incorporated in assemblies with metal parts.
Electrical bobbins, bushings, bearings,
containment tubes, bearing cages, insulators and rollers all benefit from the
hoop fiber orientation which is uniquely achieved in Drake Plastics' Seamless
Drake Plastics has made Ultem Seamless Tube available in several sizes to
solve a specific customer problem, but there are countless other applications
that can also benefit from it. Seamless Tube is a great way to 'lean out' a
machined part process and improve performance at the same time. Drake has more
than fifty OD/ ID Seamless Tube combinations available to order on a
Made-to-Order basis. Our minimums are modest and will stock frequently
requested sizes according to demand.
Consider Seamless Tube if your Ultem 2300 or
2400 parts have an ID and you need a production quantity of 25Kg or more.
Machinists report better tolerance control especially roundness and
concentricity when starting with Drake's Seamless Tube over both rod and plate. Machinists often report
outer diameters 'shrinking' when cylindrical parts are machined from Rod. Starting
with Seamless Tube and removing less supporting material from the interior
cross section eliminates this problem, enhancing the dimensional stability of
the final part and protecting from yield loss.
ULTEM 2300 is 30% Glass Fiber reinforced ULTEM PEI while ULTEM 2400
is 40% Glass reinforced. Both grades offer superior mechanical properties
compared to unreinforced Ultem 1000 PEI. Stock shapes extruded from ULTEM 2300
and ULTEM 2400 offer outstanding elevated thermal resistance, high strength and
stiffness, low moisture uptake and broad chemical resistance. Ultem 2300 and
2400 are also inherently flame resistant and low smoke generating. Machined
parts are used in medical, aerospace, oil & gas, and chemical applications
due to heat, solvent, and flame resistance. ULTEM 2300 and Ultem 2400 both
offer high mechanical strength and perform in continuous use to 171°C.
ULTEM 2300 uniquely balances both mechanical properties and processability,
offering design engineers exceptional flexibility and freedom.
In addition to ULTEM 2300 and ULTEM 2400, Drake Plastics has the
capability to extrude any Ultem PEI Grade on a Made-to-Order basis. We can
produce just about any stock shape form we offer including very large Rod- up
to 250 mm. Inquire with our Application Development Team to learn more: email@example.com
Key Features of ULTEM 2300 PEI
Stability- Long term heat resistance
strength and stiffness up to 199°C (Note Tg = 215°C)
- CLTE of
long-term hydrolytic stability
stress and crack resistance
flame resistance (V-0 rated)
dielectric strength (35 kV/mm at 0.8 mm)
components that require strength and rigidity at elevated temperatures
& Gas components beyond PEEK's thermal capability
electrical and structural parts
and Valve parts
processing equipment components