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International Rubber Hardness Degree Meters
International Rubber Hardness Degree Meters

International Rubber Hardness Degree Meters

by: Stech Engineers, Thane

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Product Description

Our range of International Rubber Hardness Degree Meters (IRHD) is offered to the clients, in varied specifications. These testers are manufactured using high quality raw material, which is procured from the renowned vendors of the market. These testers are made available to the clients in varied technical specifications, in order to cater to the clients'' varied requirements in an efficient manner.


Some of the other details of these testers are as follows:

  • Measure of the indentation resistance of elastomeric or rubber material is based on the depth of penetration of a ball indentor
  • An initial contact force is applied to an indentor and the penetration is set to zero
  • The force is increased to a specified total load and the depth of penetration is measured
  • The IRHD value is related to the depth of indentor penetration
  • For highly elastic material, IRHD and shore A are comparable
  • An IRHD value of 0 represents a material with Young''s Modulus of zero and an IRHD value of 100 represents a material with an infinite Young''s Modulus
  • Relationship between the depth of penetration (hardness) and the IRHD number is based on F/E=0.0038r0.65*D1.35

Where:

  • F is the indentation force in newtons
  • E is the Young''s Modulus in MPa
  • r is the indentor ball radius in mm
  • D is the depth of penetration in mm

Test

Ball Diameter (mm)

Contact Force (N)

Total Force (N)

Thickness (mm)

IRHD Range

N (Normal)

2.5

0.3

5.7

4

30 to 95

H (High-Hardness)

1.0

0.3

5.7

4

85 to 100

L (Low-Hardness)

5.0

0.3

5.7

6

10 to 35

M (Micro)

0.395

0.0083

0.153

4

30 to 95


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Stech Engineers

International Rubber Hardness Degree Meters

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Thane
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International Rubber Hardness Degree Meters

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