FabDigitFabDigit

LCP Type I vs Vectra

Polymer · grade comparison

LCP Type I and Vectra are both polymer grades. Vectra is the stronger of the two: tensile strength 182 MPa (26.4 ksi) against 135 MPa (19.6 ksi) for LCP Type I, about 35% more. Vectra is the more ductile: elongation 3.4% versus 2.5% for LCP Type I. LCP Type I runs hotter in service (220°C vs 200°C continuous) and LCP Type I conducts heat better (0.3 W/m·K vs 0.25 W/m·K).

LCP Type IChoose it when the part sees heat.

VectraChoose it when strength drives the design, or when the part is bent, formed or impact-loaded.

LCP Type I vs Vectra: properties

LCP Type IVectra

Mechanical

Strength, stiffness, ductility and hardness at room temperature.

Elastic (Young's) Modulus

11 GPa1.6 Msi
10.6 GPa1.5 Msi

Shear Modulus

1.2 GPa0.17 Msi
—

Poisson's Ratio

0.38
0.35

Tensile Strength (Ultimate)

135 MPa19.6 ksi
182 MPa26.4 ksi

Elongation at Break

2.5%
3.4%

Compressive Strength

65 MPa9.4 ksi
—

Compressive Modulus

7 GPa1 Msi
—

Flexural Strength

145 MPa21 ksi
158 MPa22.9 ksi

Flexural Modulus

10 GPa1.5 Msi
9.7 GPa1.4 Msi

Shear Strength

55 MPa8 ksi
—

Izod Impact, Notched

180 J/m3.4 ft·lbf/in
500 J/m9.4 ft·lbf/in

Hardness, Rockwell M

75 HRM
70 HRM

Same in both: Hardness, Shore D 88 Shore D

Physical

Density and transition temperatures.

Density

1.38 g/cm³0.05 lb/in³
1.4 g/cm³0.05 lb/in³

Melting Temperature (Tm)

355°C671 °F
280°C536 °F

Glass Transition (Tg)

145°C293 °F
110°C230 °F

Water Absorption (24 h)

0.02%
0.03%

Same in both: Water Absorption (Saturation) 0.1%

Thermal

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

Thermal Conductivity

0.3 W/m·K0.17 BTU/hr·ft·°F
0.25 W/m·K0.14 BTU/hr·ft·°F

Specific Heat Capacity

1,150 J/kg·K0.27 BTU/lb·°F
1,200 J/kg·K0.29 BTU/lb·°F

Thermal Expansion (CTE, 20–100 °C)

8 µm/m·K4.4 µin/in·°F
5 µm/m·K2.8 µin/in·°F

Max Service Temperature (continuous)

220°C428 °F
200°C392 °F

Min Service Temperature

-100°C-148 °F
-50°C-58 °F

Heat Deflection Temp. @ 0.45 MPa

275°C527 °F
240°C464 °F

Heat Deflection Temp. @ 1.8 MPa

240°C464 °F
187°C369 °F

Limiting Oxygen Index

40%
35%

Max Service Temperature (short-term)

300°C572 °F
280°C536 °F

Electrical

Conductivity and insulation.

Dissipation Factor (1 MHz)

0.004
0.005

Same in both: Electrical Resistivity 1×10¹³ Ω·m3.94×10²⁰ µΩ·in · Dielectric Strength 35 kV/mm889 V/mil · Dielectric Constant (1 MHz) 3.3 · Volume Resistivity 1×10¹⁵ Ω·cm · Surface Resistivity 1×10¹⁵ Ω · Comparative Tracking Index (CTI) 200 V

Chemical & Environmental

Corrosion and environmental resistance (0–100 scores).

Corrosion Resistance

92 / 100
90 / 100

UV / Weathering Resistance

45 / 100
40 / 100

Manufacturability

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

Machinability

62 / 100
55 / 100

Weldability

20 / 100
25 / 100

Formability (cold)

20 / 100
10 / 100

Polishability

45 / 100
40 / 100

Mold Shrinkage

0.1%
0.2%

Processing Melt Temperature (typ.)

385°C725 °F
300°C572 °F

Mold Temperature (typ.)

120°C248 °F
90°C194 °F

Sustainability

Primary-production footprint per kilogram.

Embodied Energy (primary production)

250 MJ/kg107,481 BTU/lb
180 MJ/kg77,386 BTU/lb

Embodied Carbon (primary production)

9 kg CO₂/kg
8.5 kg CO₂/kg

Embodied Water

300 L/kg35.9 gal/lb
—

Same in both: Typical Recycled Content 0%

Common Calculations

Ratios derived from the values above.

Specific Strength (UTS / density)

98 kN·m/kg
130 kN·m/kg

Specific Stiffness (E / density)

8 MN·m/kg
7.6 MN·m/kg

Thermal Diffusivity

0.2 mm²/s
0.1 mm²/s

Thermal Shock Resistance Index

0
1

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 scale

Manufacturing and finishing

CapabilityLCP Type IVectra
Default condition——
Relative cost$$$$ High$$$$ High
Min. machined wall——
Best machined surface——

LCP Type I vs Vectra — frequently asked

Is Vectra stronger than LCP Type I?

Yes. Vectra has a typical tensile strength of 182 MPa (26.4 ksi) against 135 MPa (19.6 ksi) for LCP Type I — about 35% more.

Which is cheaper, LCP Type I or Vectra?

Both sit in the same relative cost tier ($$$$, high); the part price will be decided by machining time, tolerance and quantity rather than by the material.

Which is easier to machine, LCP Type I or Vectra?

LCP Type I, by a small margin. Both rate good for machinability — 62/100 against 55/100 for Vectra; for welding the order is Vectra first (poor, 25/100) then LCP Type I (poor, 20/100).

Ready to make it?

Upload a CAD file and FabDigit prices the part in LCP Type I and Vectra 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.