Item

Unit

Index

YT-170

           YT-220

Bulk Density (max)

Kg/m3

170

               220

Flexural Strength (min)

Mpa

0.25

0.3

Compressive Strength (min)

at 5% deformation

Mpa

0.5

0.6

Linear shrinkage (max)

after heating for 16hrs at 650°C

%

2

2

Thermal conductivity (max)

Average temperature 70°C

w/m.k

0.052

0.056

Service Temperature (max)

°C

650

650

Moisture content (max)

%

7.5

7.5

Board

Length x Width

610 x 150 mm

Thickness 25 – 75 mm

610 x 300 mm

915 x 305 mm

1000 x 500 mm

Curved Sheet

Inside diameter

196 – 3560 mm

Thickness 25-75mm

Length

610mm, 915mm

Piper Cover

nside diameter

16 – 171 mm

Thickness 25-75mm

Length

610mm, 915mm

          Item

Specification

Allowable Dimension Tolerance (mm)

Surface Defect

(Spot / PC)

Length

Width

Inside Dia

Thickness

Chipped

edge

Chipped

corner

Board

+ 3

- 2

+3

- 3

+ 3

- 2

1

1

Curved Sheet

+ 3

- 2

+ 5

- 0

+0

- 2

1

1

Piper Cover

+ 3

- 2

+ 3

- 0

+0

- 2

1

1