What is PA 6 G HS natural?
PA 6 G HS is a cast polyamide 6 with a special heat stabilisation. The additivation significantly increases thermo-oxidative resistance, while retaining the high stiffness and very good machinability of the PA6 G base material.
Technical data
| Property | Value | Test method |
|---|---|---|
| General Properties | ||
| Density | 1.15 g/cm³ | DIN EN ISO 1183-1 |
| Water absorption | 2.50 % | DIN EN ISO 62 |
| Flammability (thickness 3 mm / 6 mm) | HB/V2 | UL 94 |
| Mechanical Properties | ||
| Yield stress | 75 MPa | DIN EN ISO 527 |
| Elongation at break | >15 % | DIN EN ISO 527 |
| Tensile modulus | 3,700 MPa | DIN EN ISO 527 |
| Notched impact strength | >2.5 kJ/m² | DIN EN ISO 179 |
| Ball indentation hardness | 170 MPa | DIN EN ISO 2039-1 |
| Shore hardness | 82 scale D | DIN EN ISO 868 |
| Thermal Properties | ||
| Melting temperature | 216 °C | ISO 11357-3 |
| Thermal conductivity | 0.25 W/(m·K) | DIN 52612-1 |
| Thermal capacity | 1.70 kJ/(kg·K) | DIN 52612 |
| Coefficient of linear thermal expansion | 80 ·10⁻⁶/K | DIN 53752 |
| Service temperature, long-term | -40 to 120 °C | Average |
| Service temperature, short-term (max.) | 180 °C | Average |
| Heat deflection temperature | 95 °C | DIN EN ISO 75, method A, HDT |
PA 6 G HS natural vs. PA 6 G compared directly
| Property | PA 6 G HS natural | PA 6 G |
|---|---|---|
| Density | 1.15 g/cm³ | 1.15 g/cm³ |
| Yield stress | 75 MPa | 75 MPa |
| Elongation at break | >15 % | 45 % |
| Tensile modulus | 3,700 MPa | 3,400 MPa |
| Shore hardness | 82 scale D | 83 scale D |
| Melting temperature | 216 °C | 216 °C |
| Service temperature, long-term | -40 to 120 °C | -40 to 110 °C |
| Heat deflection temperature | 95 °C | 95 °C |
PA 6 G HS natural in detail
1What is PA 6 G HS natural?+
PA 6 G HS is a cast polyamide 6 with a special heat stabilisation. The additivation significantly increases thermo-oxidative resistance, while retaining the high stiffness and very good machinability of the PA6 G base material. PA 6 G is a cast, semi-crystalline polyamide with high stiffness, good toughness, and good machinability. The heat stabilisation additionally improves resistance to thermo-oxidative ageing at elevated service temperatures, without significantly altering the basic mechanical properties of the PA6 G. Like all polyamides, PA 6 G HS absorbs moisture from the environment; this makes the material tougher and more impact-resistant, while stiffness and dimensional stability decrease somewhat.
2How does Liedtke machine PA 6 G HS natural?+
PA 6 G HS can be machined like standard PA6 G using all conventional cutting methods; HSS or carbide tools are sufficient. Good cooling via chip removal remains important to avoid softening or smearing of the surface caused by heat build-up. For tight tolerances, we take swelling and shrinkage behaviour into account and condition the semi-finished product where required.
3When should I choose PA 6 G HS natural?+
PA 6 G HS is used wherever PA6 G must remain thermally stable over extended periods at elevated service temperatures, for example in mechanical engineering as well as crane and lifting technology:
- Components for elevated continuous service temperatures
- Bearing and guide elements
- Rollers and wheels in crane and lifting technology
- Components for conveyor technology
4What determines the price of a PA 6 G HS natural part?+
PA 6 G HS natural is calculated individually based on drawing or sample. The part price is mainly determined by the stock form and dimension, material utilisation (waste), machining effort and batch size. We are happy to quote binding prices on request.
5When is PA 6 G HS natural not the right choice?+
Just as important are the limits of the material:
- Moisture absorption of up to 2.5 % in standard atmosphere, causing dimensional and property changes
- Not resistant to strong acids and permanently hot water (hydrolysis)
- Not generally declared for food contact (see FDA declaration)
6Advantages and disadvantages of PA 6 G HS natural+
An honest assessment:
- Advantage: Heat-stabilised for increased thermo-oxidative resistance
- Advantage: High stiffness of the PA6 G base material
- Advantage: Very good machinability
- Advantage: Improved long-term stability under thermal stress
- Disadvantage: Moisture absorption of up to 2.5 % in standard atmosphere, causing dimensional and property changes
- Disadvantage: Not resistant to strong acids and permanently hot water (hydrolysis)
- Disadvantage: Not generally declared for food contact (see FDA declaration)
Typical properties
- Heat-stabilised
- High rigidity
- Very good machinability
Typical industries
- Mechanical Engineering
- Crane and Lifting Technology
- Conveyor Technology
Downloads for PA 6 G HS natural
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