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Divinycell® HCP70
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Divinycell® HCP70

Divinycell HCP grade meets the demand for a high performance, low density buoyancy material with excellent characteristics. It is widely used in submarines, subsea buoyancy units, ROVs, diving bells and impact protection structures. As a result of its excellent hydraulic compressive properties and closed cell structure, it has very low buoyancy loss and water absorption under long-term loading conditions. HCP stands for Hydraulic Crush Point and is defined as the point of pressure in Bar, where the material when subjected to an increasing pressure of 1-2 Bar/sec has lost 5% of its initial volume. The design of subsea buoyancy applications is complex and consideration has to be given to the required buoyancy loss and updrift over the expected lifetime and service conditions, with respect to long and short term hydraulic compressive creep, water absorption and hydraulic fatigue. Please contact Diab Technical Services for design proposal.
Product Resources

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Identification & Functionality

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Features & Benefits

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Product Highlights
  • Excellent buoyancy performance
  • High impact resistance
  • Low water absorption
  • Good insulation properties
  • Thermoformable
  • Superior damage tolerance
  • Fast and easy to machine
  • Good chemical resistance
  • High temperature resistance

Applications & Uses

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Properties

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Mechanical Properties
ValueUnitsTest Method / Conditions
Density Nominal310kg/m3ISO 845
Densitymax. 340kg/m3ISO 845
Densitymin. 295kg/m3ISO 845
Hydraulic Crush Point70-79Bar-
Compressive Strength Nominal8.1MPaASTM D 1621
Compressive Strengthmin. 7MPaASTM D 1621
E-modulus (extensometer) Nominal500MPaASTM D 1621
E-modulus (extensometer)min. 390MPaASTM D 1621
Tensile Strength Nominal11MPaASTM D 1623
Tensile Strengthmin. 10MPaASTM D 1623
Shear Strength Nominal5.2MPaASTM C 273
Shear Strengthmin. 4.2MPaASTM C 273
Shear Modulus Nominal115MPaASTM C 273
Shear Modulusmin. 90MPaASTM C 273
Shear Strain Nominal35%ASTM C 273

Documents (2)

Document Name
Type
Products
Technical Data Sheet
Divinycell® HCP100, Divinycell® HCP30, Divinycell® HCP50, Divinycell® HCP70, Divinycell® HCP90
Technical Data Sheet
Products: Divinycell® HCP100, Divinycell® HCP30, Divinycell® HCP50, Divinycell® HCP70, Divinycell® HCP90
Technical Data Sheet
Divinycell® HCP100, Divinycell® HCP30, Divinycell® HCP50, Divinycell® HCP70, Divinycell® HCP90
Technical Data Sheet
Products: Divinycell® HCP100, Divinycell® HCP30, Divinycell® HCP50, Divinycell® HCP70, Divinycell® HCP90