Form information
Bar
A Straight length of rectangular, square of oval section material
| Tolerances | ||
| Section dimensions: | ≤10mm | ±10% |
| >10mm | ±1mm | |
| Length: | <100mm | ±1mm |
| ≥100mm | +5%/-1% |
Chopped Fiber
Fibers cut into short lengths called cut, staple or chopped fiber.
| Tolerances | |
| Fiber diameter: | ±25% |
| Number of strands: | ±10% |
| Tex number: | ±10% |
| Length: | +5%/-1% |
Fabric
Woven fabrics are made by the regular interlacing of two arrays of yarns at right angles to each other, these being referred to as the warp and weft (see also Nov-woven fabric)
| Tolerances | ||
| Fabric thickness: | ±25% | |
| Number of yarns: | ±10% | |
| Tex number: | ±10% | |
| Size (linear dimension): | <100mm | ±5mm |
| ≥100mm | ±5% |
Fiber
Yarns or tows consisting of several approximately parallel individual filaments, each filmament usually being smaller in diameter than a monofilament.
| Tolerances | ||
| Fiber diameter: | ±25% | |
| Number of strands: | ±10% | |
| Tex number: | ±10% | |
| Length: | <100mm | ±5%/-1% |
Film
A non-metallic sheet material with a thickness <0.5mm.
| Tolerances | ||
| Thickness: | ±20% | |
| Size (linear dimension): | <100mm | ±1mm |
| ≥100mm | +2%/-1% |
Flake
Flat, iregularly shaped pieces of material. A maximum flake size is indicated, but individual flakes may vary greatly in size.
| Tolerances |
| Dimensions shown are nominal |
Foam
A low density, permeable structure of cells and continuous ligaments offering a high surface area to volume ratio, and also a high, strength to weight ratio. Owing to the nature of this material, dimensions are nominal.
Foil
Thin sheets of pure metal and metal alloys. Due to their fragile nature, some foils are coated on one side with an acrylic or polyester support. Where foils are supported they are indicated in the detailed item description.
Light Tight Foil: LT Foils are supplied without visible pinholes whereas NLT foils will normally contain pinholes, but may occasionally be free from pinholes. Foils 0.025mm or more in thickness are supplied LT unless otherwise stated. Foils less than 0.025mm are normally supplied NLT, however, if you require LT foils, please ask. An additional charge may be made if we are able to supply LT foils.
| Tolerances | ||
| Thickness: | <0.010mm | ±25% |
| 0.010 - 0.050mm | ±15% | |
| >0.050mm | ±10% |
Granule
Pellets of an approximately regular shape. Granules may vary in size and, therefore, the dimensions stated are nominal. In addition, the shape of a granule may vary from item to item.
| Tolerances |
| Dimensions shown are nominal |
Honeycomb
A cellular structure similar in appearance to natural honeycomb. Owing to the nature of this material, dimensions are nominal.
Insulated Wire
A single or multiple flexible strand of metal or alloy with an insulating sheath.
| Tolerances | |
| Wire diameter: | ±10% |
| Length: | ±5%/-1% |
| Insulation thickness: | Nominal values only |
Laminate
Layers of material which have been bonded together by the use of heat, pressure and, possibly, adhesive.
| Tolerances | ||
| Thickness: | ±10% | |
| Size (linear dimension): | ≤100mm | ±1mm |
| >100mm | ±2%/-1% |
Liquid
A state of matter between a solid and a gas in which the shape of a given mass depends on the container, the volume being independent.
Lump
A solid piece of material with no defined shape.
| Tolerances |
| Dimensions shown are nominal |
Mesh
Mesh is available as either a woven wire or electroformed product; in all cases, the quoted aperture sizes are nominal. Wire mesh: a material which is woven from metal wires to provide a thin grid with a regular series of holes. Electroformed mesh: a product made by electroplating the mesh geometry through a mask onto a substrate which is subsequently etched away.
| Tolerances | ||||
| Thickness: | woven: | ±10% | electroformed: | ±20% |
| Wire diameter: | ±10% | |||
| Size (linear dimension): | <100mm | ±1mm | ||
| ≥100mm | +2%/-1% |
Metallized Film
Film which is coated with a metal. The thickness of the metal is measured and described in terms of the material's specific electrical resistance in ohms per square.
| Tolerances | ||
| Thickness: | ±10% | |
| Size (linear dimension): | <100mm | ±1mm |
| ≥100mm | +2%/-1% |
Microfoil
An extremely thin sheet of metal or alloy mounted on a permanent support. This support cannot be removed without destroying the Microfoil.
| Tolerances | |
| Thickness: | ±30% |
| Size: | ±20% |
Microleaf
An extremely thin sheet of metal mounted on a removable support. Microleaf is not available for metals which are too brittle to be free standing. Microleaf is mounted on a specially treated support which allows separation of the metal film from the support. Full instructions on the method of removal are issued with each Microleaf supplied.
| Tolerances | |
| Thickness: | ±30% |
| Size: | ±20% |
Monofilament
A single strand of a non-metallic material.
| Tolerances | |
| Diameter: | ±20% |
| Length: | +5%/-1% |
Non-Woven Fabric
Non-woven fabrics are made by methods other than weaving or knitting, the yarns and fibers being held together, often quite loosely, by means other than geometric interlacing. Due to the open and porous nature of this material, all other dimensions are nominal.
| Tolerances | ||
| Size (linear dimension): | <100mm | ±5mm |
| >100mm | ±5% |
Powder
Small particles with an approximately defined size range. Unless otherwise stated, the particle sizes shown are for guidance only. We do not guarantee either any particular size distribution between the quoted minimum and maximum sizes, or a specific particle shape, blend of powders of the component metals to achieve alloying by diffusion. The resultant cake is ground and sieved to the required particle size range. Unless otherwise stated, the particle sizes shown are for guidance only. We do not guarantee either any particular size distribution between the quoted minimum and maximum sizes, or a specific particle shape.
| Tolerances | Dimensions shown are nominal |
Rod
A straight length of circular section material.
| Tolerances | ||
| Diameter: | <10mm | ±10% |
| Polymer | ±20%/-10% | |
| Ceramic | ±20%/-10% | |
| >10mm | ±5% | |
| Polymer | ±20%/-10% | |
| Ceramic | ±20%/-10% | |
| Length: | <100mm | ±1mm |
| ≥100mm | +5%/-1% |
Sheet
Flat material with a thickness >0.5mm.
| Tolerances | ||
| Thickness: | Metals/Alloys | ±10% |
| Ceramic | ±20% | |
| Composite | ±20% | |
| Polymer | ±20% | |
| Size (linear dimension): | <100mm | ±1mm |
| ≥100mm | +2%/-1% |
Single Crystal
A material grown as a monocrystal, generally to a specific orientation, dimension and surface finish. It may contain a dopant. Single crystals are usually made to order.
| Tolerances | ||
| Orientation: | ±3% | ±10% |
| Ceramic | ±20% | |
| Size: | Sizes nominal | ±20% |
Sphere
Small balls which are precision ground.
| Tolerances | |
| Diameter: | ±5% |
Sputtering Target
A high purity material used as a source for sputtering, a cold vaporisation process in which atoms are physically removed from the target surface by ion bombardment.
| Tolerances | |
| Thickness: | ±5% |
| Size: | ±5% |
Tube
A hollow length of material normally circular in section. Most tubes are straight except those made of flexible polymer.
| Tolerances | ||
| Outside Diameter: | ≤2mm | ±0.05mm |
| Polymer | ±10% | |
| Ceramic | ±10% | |
| ≤5mm | ±0.1mm | |
| Polymer | ±10% | |
| Ceramic | ±10% | |
| ≥5mm | ±5% | |
| Polymer | ±10% | |
| Ceramic | ±10% | |
| Wall Thickness: | ±10% | |
| Polymer | ±20% | |
| Ceramic | ±20% | |
| <100mm | ±1mm | |
| ≥100mm | +5%/-1% |
Wire
A single or multiple flexible strand of pure metal or alloy.
| Tolerances | |
| Wire diameter: | ±10% |
| Length: | +5%/-1% |