material

Types

Stainless steel 201

Material type: Fiberglass laminate, Non-conductive, Strong, Lightweight, Chemical resistant

G-10 is a high-pressure fiberglass laminate made by stacking layers of glass cloth soaked in epoxy resin, compressed under heat. It is part of the FR-4 family but without flame-retardant additives. Known for its excellent strength, low moisture absorption, and electrical insulating properties, it is widely used in electronics, tools, and knife handles.

Material advantages

  • Excellent electrical insulating properties

  • High mechanical strength and impact resistance

  • Lightweight and moisture resistant

  • Easy to machine into precise shapes

  • Cost-effective compared to carbon fiber

Material shortcomings

  • Lower strength-to-weight ratio compared to carbon fiber

  • Can degrade under continuous UV exposure if not coated

  • Brittle under extreme impact loads

  • Lower heat resistance than advanced composites

NameValue
Tensile strength~310–414 MPa
Flexural strength~448 MPa
Compressive strength~379 MPa
Modulus of elasticity~17.2 GPa
Density1.8–1.9 g/cm³
Water absorption (24h)≤0.10%
Heat resistanceUp to ~130–140 °C (continuous use)
Dielectric strength~19.7 kV/mm

Common applications

  • Printed circuit boards (PCB)

  • Knife handles and firearm grips

  • Electrical insulators and spacers

  • Structural components in tools and equipment

  • Marine hardware and diving equipment

  • Mechanical jigs and fixtures

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