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PA612 GF30 vs PA612 HS

Polymer · PA612 grade comparison

PA612 GF30 and PA612 HS are two grades of the same polymer grade, PA612: GF30 (30 % glass-fibre reinforced) versus HS (heat-stabilised). The chemistry is identical, so every difference below comes from the condition. PA612 GF30 is the stronger of the two: yield strength 58 MPa (8.41 ksi) against 55 MPa (7.98 ksi) for PA612 HS, about 5% more; tensile strength follows at 155 MPa (22.5 ksi) vs 57 MPa (8.27 ksi). In exchange, PA612 HS is the more ductile: elongation 200% versus 3.5% for PA612 GF30. PA612 HS is lighter (1.07 g/cm³ vs 1.31 g/cm³ for PA612 GF30) and PA612 GF30 is stiffer (8.8 GPa vs 2 GPa). On the shop floor, PA612 HS machines more easily (very good vs fair).

PA612 GF30Choose it when strength drives the design.

PA612 HSChoose it when the part is bent, formed or impact-loaded, or when weight is the constraint.

PA612 GF30 vs PA612 HS: properties

PA612 GF30PA612 HS

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

8.8 GPa1.3 Msi
2 GPa0.29 Msi

Tensile Strength (Ultimate)

155 MPa22.5 ksi
57 MPa8.3 ksi

Yield Strength (0.2% offset)

58 MPa8.4 ksi
55 MPa8 ksi

Elongation at Break

3.5%
200%

Compressive Strength

130 MPa18.9 ksi
68 MPa9.9 ksi

Flexural Strength

225 MPa32.6 ksi
78 MPa11.3 ksi

Flexural Modulus

8.2 GPa1.2 Msi
1.9 GPa0.28 Msi

Shear Strength

65 MPa9.4 ksi
48 MPa7 ksi

Izod Impact, Notched

100 J/m1.9 ft·lbf/in
60 J/m1.1 ft·lbf/in

Hardness, Shore D

79 Shore D
78 Shore D

Hardness, Rockwell M

92 HRM
76 HRM

Hardness, Rockwell R

115 HRR
114 HRR

Same in both: Shear Modulus 0.78 GPa0.11 Msi · Bulk Modulus 4 GPa0.51 Msi · Poisson's Ratio 0.39 · Compressive Modulus 2 GPa0.29 Msi

Physical

Density and transition temperatures.

Density

1.31 g/cm³0.05 lb/in³
1.07 g/cm³0.04 lb/in³

Same in both: Melting Temperature (Tm) 218°C424 °F · Glass Transition (Tg) 48°C118 °F · Water Absorption (24 h) 0.3% · Water Absorption (Saturation) 2.7% · Refractive Index 1.53

Thermal

How each material carries heat and how hot it can run.

Thermal Conductivity

0.3 W/m·K0.17 BTU/hr·ft·°F
0.22 W/m·K0.13 BTU/hr·ft·°F

Thermal Expansion (CTE, 20–100 °C)

28 µm/m·K15.6 µin/in·°F
100 µm/m·K55.6 µin/in·°F

Max Service Temperature (continuous)

120°C248 °F
125°C257 °F

Heat Deflection Temp. @ 0.45 MPa

212°C414 °F
152°C306 °F

Heat Deflection Temp. @ 1.8 MPa

205°C401 °F
62°C144 °F

Vicat Softening Point (B50)

185°C365 °F
192°C378 °F

Max Service Temperature (short-term)

160°C320 °F
180°C356 °F

Same in both: Specific Heat Capacity 1,700 J/kg·K0.41 BTU/lb·°F · Min Service Temperature -40°C-40 °F · Limiting Oxygen Index 24%

Electrical

Conductivity and insulation.

Same in both: Electrical Resistivity 1×10¹² Ω·m3.94×10¹⁹ µΩ·in · Dielectric Strength 28 kV/mm711 V/mil · Dielectric Constant (1 MHz) 3.1 · Dissipation Factor (1 MHz) 0.02 · Volume Resistivity 1×10¹⁵ Ω·cm · Surface Resistivity 1×10¹⁴ Ω · Comparative Tracking Index (CTI) 600 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

72 / 100
80 / 100

UV / Weathering Resistance

35 / 100
40 / 100

Manufacturability

FabDigit workshop ratings (0–100 scores) — how each material behaves on the machine.

Machinability

45 / 100
70 / 100

Weldability

55 / 100
62 / 100

Formability (cold)

60 / 100
65 / 100

Mold Shrinkage

0.4%
1.4%

Same in both: Polishability 55 / 100 · Processing Melt Temperature (typ.) 260°C500 °F · Mold Temperature (typ.) 80°C176 °F

Sustainability

Primary-production footprint per kilogram.

Same in both: Embodied Energy (primary production) 130 MJ/kg55,890 BTU/lb · Embodied Carbon (primary production) 7.5 kg CO₂/kg · Embodied Water 350 L/kg41.9 gal/lb · Typical Recycled Content 0%

Strength versus weight

Yield strength against density for every polymer grade in the FabDigit library; the compared grades are highlighted. Up and left is stronger for its weight.

0.1110100123Density (g/cm³)Yield strength (MPa) — log scalePA612

PA612 GF30 vs PA612 HS — frequently asked

Is PA612 GF30 stronger than PA612 HS?

Yes. PA612 GF30 has a typical yield strength of 58 MPa (8.41 ksi) against 55 MPa (7.98 ksi) for PA612 HS — about 5% more. Tensile strength is 155 MPa (22.5 ksi) vs 57 MPa (8.27 ksi).

Which grade does FabDigit quote by default, GF30 or HS?

NAT-DAM is the default PA612 condition in the FabDigit quote flow (neither GF30 nor HS). The other condition is available on request or by drawing note — specify it in the material field or the part notes and the quote is priced for it.

Which is easier to machine, PA612 GF30 or PA612 HS?

PA612 HS. Its machinability rates very good (70/100) against fair (45/100) for PA612 GF30; for welding the order is PA612 HS first (good, 62/100) then PA612 GF30 (good, 55/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in PA612 GF30 and PA612 HS side by side — material, machining time, tolerance and finish in one quote. Certified material data ships with the order on request.

Typical handbook values for the conditions named above, normalised for comparison. Hardness on non-Brinell scales is converted approximately for charting only. Request certified data with your order for design-critical properties.