Stanyl® TW371

Heat Stabilized, Wear and Friction Modified

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General Information

Stanyl® is our high-performance polyamide 46 used for applications in automotive, E&E, gears and outdoor power equipments.
Stanyl® is a high performance polyamide that provides unmatched performance and value for demanding applications in which superior heat resistance, design stiffness, wear & friction and process flow qualities are required.
Because Stanyl retains its mechanical properties at high temperatures up to 220°C, this makes it ideal for extremely high-performance applications, where it outperforms PPA, PA6T, PA9T, and often PPS and LCP.
Product
Stanyl® TW371 is a friction-modified high heat polyamide that offers excellent wear & friction properties in combination with outstanding creep resistance, strength, stiffness and fatigue resistance especially at high temperatures in combination with cycle-time advantages and excellent flow.
Special features
  • Heat stabilized
  • Wear and friction modified
General Document
Regulatory Affairs
  • Absence Declaration BNST2023-11-16
  • Absence Declaration Biocidal Products2023-11-16
  • Absence Declaration DMF (2009/251/EC: Dimethylfumarate)2023-11-16
  • Absence Declaration ELV (2000/53/EC: Heavy metals)2024-02-15
  • Absence Declaration EPA 20 High Priority Substances 20192023-11-16
  • Absence Declaration Food Allergens2023-11-16
  • Absence Declaration NMP (N-Methylpyrrolidone)2023-11-16
  • Absence Declaration Nano Materials2023-11-16
  • Absence Declaration Ozone Depleting Chemicals2024-06-27
  • Absence Declaration PAH (Polycyclic Aromatic Hydrocarbons)2023-11-16
  • Absence Declaration PBT chemicals under TSCA section 6(h)2023-11-16
  • Absence Declaration PFAS (PTFE containing)2024-03-05
  • Absence Declaration POPs (Persistent Organic Pollutants)2024-09-04
  • Absence Declaration Phthalates (2005/84/EC: DEHP, DBP, BBP,DINP,DIDP, DNOP)2023-11-16
  • Absence Declaration Red Phosphorus2023-11-16
  • Absence Declaration opBDE (2003/11/EC: Octa- / Pentabromodiphenylether)2023-11-16
  • CALIFORNIA PROPOSITION 65 (NDS)2024-01-02
  • CALIFORNIA PROPOSITION 65 (carbon black)2024-01-02
  • Compliance Statement EU Sanctions and Embargos2024-05-16
  • Conflict minerals declaration (EICC, GeSI)2024-05-15
  • Deforestation Statement, Regulation (EU) 2023/1115 (EUDR)2024-09-19
  • Packaging Declaration EU Decision 97/129/EC (labelling)2024-04-17
  • Packaging, Packaging Waste and CONEG declaration (94/62/EC)2021-12-06
  • REACH Registration Statement2024-03-27
  • REACH STATEMENT KOREA2023-11-16
  • REACH STATEMENT TURKYE2023-11-16
  • RoHS Statement (2011/65/EC: Heavy metals)2024-02-01
  • SVHC, REACH Annex XIV and –XVII Statement2024-11-08
Yellow Card
Processing technology
Injection Molding
Design challenge
Wear & Friction
Automotive OEM
CALLOUT, GM, PSA, VW
OEM Specification
ASTM D6779-12a PA0620 B50280
GMW15702-110029
SPA X62 4156
STELLANTIS - 01994-16-00164-MAN-01994-10-00102-(2021-07)
VW50135 PA46-3-A (2016-08)
Applications
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Rheological properties

Molding shrinkage [parallel]
2
%
Molding shrinkage [normal]
2
%
Spiral flow length 1.0 mm 800 bar
115
mm
Spiral flow length 1.0 mm 900 bar
125
mm
Spiral flow length 1.0 mm 1000 bar
135
mm

Mechanical properties

Tensile modulus
3000
MPa
Tensile modulus (-40°C)
3400
MPa
Tensile modulus (120°C)
750
MPa
Tensile modulus (160°C)
650
MPa
Tensile modulus (180°C)
600
MPa
Tensile modulus (200°C)
560
MPa
Yield stress
90
MPa
Yield stress (120°C)
45
MPa
Yield stress (160°C)
40
MPa
Yield stress (180°C)
35
MPa
Yield stress (200°C)
30
MPa
Yield strain
20
%
Nominal strain at break
25
%
Nominal strain at break (120°C)
>50
%
Nominal strain at break (160°C)
>50
%
Nominal strain at break (180°C)
>50
%
Nominal strain at break (200°C)
>50
%
Stress at break (-40°C)
120
MPa
Strain at break (-40°C)
8
%
Flexural modulus
2850
MPa
Flexural modulus (120°C)
700
MPa
Flexural modulus (160°C)
650
MPa
Flexural strength
110
MPa
Flexural strength (120°C)
23
MPa
Flexural strength (160°C)
21
MPa
Charpy impact strength (+23°C)
N
kJ/m²
Charpy impact strength (-30°C)
150
kJ/m²
Charpy notched impact strength (+23°C)
9
kJ/m²
Charpy notched impact strength (-30°C)
5
kJ/m²
Izod notched impact strength (+23°C)
7
kJ/m²
Izod notched impact strength (-40°C)
5
kJ/m²
Weldline strength at thickness 1
87
MPa
Weldline strain at thickness 1
7
%
Thickness tested (1)
4
mm

Thermal properties

Melting temperature (10°C/min)
295
°C
Glass transition temperature (10°C/min)
75
°C
Temp. of deflection under load (1.80 MPa)
190
°C
Temp. of deflection under load (0.45 MPa)
290
°C
Vicat softening temperature (50°C/h 50N)
290
°C
Coeff. of linear therm. expansion (parallel)
0.85
E-4/°C
Coeff. of linear therm. expansion (normal)
1.1
E-4/°C
Burning Behav. at 1.5 mm nom. thickn.
HB
class
Thickness tested
1.5
mm
UL recognition
Yes
-
Burning Behav. at 3.0 mm nom. thickn.
HB
class
Thickness tested
3
mm
UL recognition
Yes
-
Thermal Index 2500 hrs
163
°C
Thermal Index 5000 hrs
152
°C
Thermal Index 10000 hrs
141
°C
Thermal Index 20000 hrs
130
°C

Electrical properties

Volume resistivity
1E12
Ohm*m
Surface resistivity
Ohm
Comparative tracking index
400
V

Other properties

Water absorption
11.4
%
Water absorption in water at 23°C after 24h
3.3
%
Humidity absorption
3.2
%
Density
1250
kg/m³

Material specific properties

Viscosity number
180
cm³/g

Diagrams

Applications

Front End Accessory Drive Parts: Belt Tensioner,Damping bands, Shoes and Bushings

Industry
Automotive
Material
  • •} Allows for lightweight and more economical solutions
  • •} Allows for more reliable solutions
  • •} Provides higher stiffness and chemical resistance
}
More information

MTF/DMF Components

Industry
Automotive
Material
  • •} Allows for lightweight and more economical solutions
  • •} Allows for more reliable solutions
  • •} Provides higher stiffness and chemical resistance
}
More information

New Generation Slide Shoe Surfaces

Industry
Automotive
Material
  • •} Heat-stabilized
  • •} Wear-and-friction modified.
}
More information

Shifter fork wear pad

Industry
Automotive
Material
The shifter fork wear pad is mounted on the gear shifter fork and transfers a shifting force to the rotating sleeve during gear shift. Two components are required per fork to operate. Stanyl® TW371 has a max PV value of 40-42Mpa-cm/s. However, this application calls for a material with PV capability of 450 MPa-cm/s or higher. Because of the continuous lubrication available around the application it is able to withstand this. Lubrication carries out the heat generated in friction and helps the plastic component to extend its life.}
More information