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Delrin® Parts and Shapes
Discover the Industry-leading Performance
of Delrin® Stock Shapes
Delrin® acetal homopolymer—with a 65-year performance record—is one of the most trusted
engineering polymers on the market. In addition to being the go-to material for millions of
high-performance injection molded components, Delrin has excellent characteristics as a stock
shapes material.
The versatility of Delrin means it can be extruded into a range of profiles and is easy to machine.
The result: precise parts with tight tolerances while maintaining the mechanical and tribological
advantages Delrin is known for.
When performance really matters
With its high level of crystallinity, Delrin delivers superior stiffness, strength and toughness—outperforming alternative engineering
plastics, like acetal copolymer (CPOM).
Advantages of Delrin® acetal homopolymer versus copolymer
Property comparison of stock shapes grades: Delrin® FG150
versus high viscosity acetal copolymer
Tensile modulus
100.00%
80.00%
60.00%
Charpy notched impact
strength, -30°C
40.00%
Yield stress
20.00%
0.00%
Charpy notched impact
strength, +23°C
Delrin® FG150
Yield strain
High viscosity acetal copolymer
Customer benefits
• Better memory of original shape after deflection
• Useful for snap-fits/buckles and simplicity
in assembly
• Stiffer material allows design of thinner-walled
Higher modulus
parts leading to more efficient use of resin
• Parts that are more resistant to fracture and
Much higher notched
capable of absorbing much more energy
charpy impact strength,
even at low temperatures • Useful for gears in motors that change directions
or stop abruptly and mechanical/moving
components in refrigerated environments
Higher strain at break
• Contributes to overall toughness of part
• Allows deflection farther past yield point without
part failure
Higher creep resistance • Better maintains overall shape over long
exposures to loads
• Maintains tighter fit in snap-fit applications
• Better maintains dimensions in
spring-loaded applications
Much higher fatigue
• More durable in high-cycle applications like
resistance
continuously running gears
Properties of Delrin
Higher yield stress
and yield strain
Given these benefits, machined Delrin parts are often selected as a lightweight and cost-effective alternative to metals. It’s used in a
multitude of applications—including valve components, gears, bearings, rollers, fittings, bushings and spacers, to name a few.
When you need to machine parts for demanding applications, ask for Delrin.
New Delrin® 51HSE provides superior mechanical properties for machined components
Drawing on the long history of Delrin setting the industry standard for plastic parts, Delrin® 51HSE takes performance to a new level.
51HSE has the highest molecular weight in the Delrin portfolio and, as a nucleated resin, brings unrivalled performance in those
applications requiring creep resistance and fatigue durability.
In addition, Delrin® 51HSE can be extruded into a variety of forms with minimal porosity, while offering the same level of machinability
and dimensional control as provided by other Delrin® grades.
Delrin® 51HSE is ideal for demanding applications like plastic gears in automotive and e-bike components.
Delrin® 51HSE outperforms CPOM in mechanical testing
of gears endurance with:
Tensile strength
+10%
Tensile modulus
+10 to 15%
Yield strain
+110 to 130%
Strain at break
+10 to 15%
Charpy notched impact
+140%
Delrin® 51HSE even outperforms
Delrin® FG150 with minimal porosity
after extrusion and the same level of
machinability as other Delrin grades.
Delrin® 51HSE mechanical properties
Machined parts made with Delrin® 51HSE clearly outperform those made with CPOM as well as one of our most robust products,
Delrin® FG150.
Tensile Modulus
Tensile Strain at Yield
Tensile Stress at Yield
Strain at yield (%)
Stress at yield (MPa)
Tensile modulus (MPa)
Delrin® 51HSE
Delrin® FG150
CPOM
Delrin® 51HSE
Delrin® FG150
CPOM
*Samples tested were machined 1A tensile bars.
Delrin® 51HSE
Delrin® FG150
CPOM
Proven for machined gears
Gears machined from Delrin® 51HSE also show superior results in testing, consistently outperforming across all torque ranges to
enable greater efficiency and service life of systems that need to go for longer.
Machined Gears Testing
3.5
Output torque (N.m)
2.5
Delrin® 51HSE
Delrin® FG150
1.5
CPOM
0.5
*Cycles at failure are
averages of the 3 repeats
run at each torque
Standard Delrin inherently has one of the lowest COFs and one of
the lowest wear rates when compared with other polymer types.
Friction-modified grades of Delrin take the benefits even further.
1,000
ABS
PPO
10,000
Delrin® against itself
1,000
100AF
0.1
0.15
0.2
100AL
100/150
100 + 5% 500SC
100AL
100AF
0.1
0.15
0.2
0.25
0.3
0.35
0.4
PA612
Noise level
Friction modified Delrin®
0.05
100 + 5% 500SC
100/150
Dynamic coefficient of friction μ
Delrin®
Delrin® against steel
PA66
PA6
M
Wear rate
Specific wear rate and COF against steel and against
itself for Delrin acetal high-viscosity grades
0.25
0.3
0.35
Dynamic coefficient of friction, μ
Delrin has a full range of friction-modified options available
for machined components, including the high performance
Delrin® 100AF, boasting excellent wear and endurance
characteristics. There are also PTFE-free options, such as
Delrin® FG100AL, with its excellent tribological characteristics,
including low noise generation.
0.4
Sound pressure level [dB(A)]
Specific wear rate [10-6 mm3/Nm]
Typical wear rate vs. dynamic COF of polymer types against steel
PBT
High Viscosity Grades
Want your products to be more reliable, produce less noise and
have a longer lifetime? Delrin has inherent low friction and good
wear properties that can make it happen.
Cycles at failure
Low wear, low friction solutions
Specific wear rate [10-6 mm 3/Nm]
Standard Delrin®
Delrin® AL formulation
Squeaking noise is measured for Delrin® 500P sliding against Delrin® 500P or Delrin®
500AL. Sound pressure level is reduced from 83dB(A) to 24dB(A), which is below the
audible threshold.
A complete portfolio
Select from the wide variety of Delrin grades to gain extra advantages for your next machined part project.
Product
Melt mass flow
Description
Key performance characteristics
• Ultra-high-viscosity acetal
• Highest molecular weight product for use in applications
rate (g/10 min)
Delrin 51HSE
®
1.2
homopolymer
Delrin® 150
2.3
• High-viscosity acetal
Delrin® FG150
2.3
• High-viscosity acetal
homopolymer
homopolymer
Delrin® RAFG150
2.3
0.9
without modification
• Excellent combination of strength, toughness and creep resistance
without modification
• Food grade
• Food contact compliant
• High-viscosity acetal
• Best combination of strength, toughness and creep resistance
homopolymer
Delrin® 100AF
requiring exceptional creep rupture resistance and fatigue durability
• Excellent combination of strength, toughness and creep resistance
without modification
• Renewable Attributed
• Reduced CO2 footprint (by mass balance)
• Food grade
• Food contact compliant
• High-viscosity acetal
• For applications requiring low wear and/or low friction against steel,
homopolymer
itself, or other plastics
• 20% PTFE fiber filled
Delrin® FG100AL
2.5
• High-viscosity acetal
homopolymer
• Advanced system of
lubrication (PTFE-free)
• Low wear, low friction, and low noise against steel, itself, or
other plastics
• An alternative to PTFE-modified grades
• Food contact compliant
• Food grade
Selected products for illustration purposes.
FG denotes food contact grades with compliance to FDA, EU10/2011 and GMP (EC) 2023/2006.
RA denotes Renewable Attributed grades. Base polymer 100% bio-feedstock from waste (ISCC mass balance certification).
For complete data, visit the Delrin Material Data Center at https://delrin.materialdatacenter.com
Ideal for existing and novel applications
The versatility of Delrin allows unlimited customization. It can be
extruded into rods, bars and sheets ready for machining. Plus,
parts machined with Delrin have nearly identical performance to
molded components so manufacturers can prototype and make
small production runs with confidence.
For production of existing commercial applications and assessing
new ideas, designers and engineers can do more with Delrin.
To learn more, contact your Delrin representative or visit Delrin.com and look under Markets for the Parts and Shapes page.
The information and recommendations contained herein are offered as a service to our customers but are not intended to relieve the user from its responsibility to investigate and
understand other pertinent sources of information and to comply with all laws and procedures applicable to the safe handling and use of these materials. The information and
recommendations provided herein were believed by Delrin to be accurate at the time of preparation or obtained from sources believed to be generally reliable. However, Delrin
makes no warranty concerning their accuracy and Delrin will not be liable for claims resulting from any party’s use of or reliance on information or recommendations contained
herein regardless of whether it is claimed that the information or recommendations are inaccurate, incomplete or otherwise misleading. Caution: For medical applications, discuss
with a Delrin customer representative and consult the Delrin Medical Caution Statement.
Delrin is an industry-leading premium industrial polymer business. Grounded in strong innovation, Delrin is a category creator with a longstanding reputation for quality,
reliability, supply and product performance. The iconic Delrin brand, coupled with proprietary technology and deep application expertise make us a leader in the high-end
engineering polymer market. Delrin has exciting growth prospects from exposure to automation, actuation, healthcare, mobility and consumer applications.
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