San Diego Plastics
2220 McKinley Avenue
National City  CA  91950
800/925-4855   619/477-4855   FAX 619/477-4874

NYCAST® CP

A copolymer of Caprolactam and Lurinlactam, NYCAST® CP was specifically developed for use in ball valve seats in the gas and oil industry. NYCAST® CP is more resilient than Type 6 Nylon. Applications for NYCAST® CP range from die blocks for food processing to wobbler box inserts for the primary metals industry.
 

PROPERTY

UNITS

TEST METHOD

NYCAST® CP

Specific Gravity

-

ASTM D792

1.10 - 1.13

Tensile Strength

psi

ASTM D638

8,700 - 11,500

Tensile Elongation

%

ASTM D638

25 - 80

Tensile Modulus

psi

ASTM D638

240,000 - 330,000

Compressive Strength
(at 10% offset)

psi

ASTM D695

-

Compressive Modulus

psi

ASTM D695

11,000 - 12,500

Flexural Strength

psi

ASTM D790

15,000 - 20,000

Flexural Modulus

psi

ASTM D790

285,000 - 385,000

Shear Strength

psi

ASTM D732

7,600 - 9,000

Notched Izod Impact

ft. lbs./in

ASTM D256

0.9 - 1.4

Hardness, Rockwell

R

ASTM D785

100 - 115

Hardness, Shore D

D

ASTM D2240

75 - 81

Melting Point

deg F

ASTM D789

410 ± 10

Coef of Linear Thermal Exp.

in./in./deg F

ASTM D696

4 - 4.5 x 10-5

Deformation under Load

%

ASTM D621

0.7 - 0.7

Deflection Temp
 264 psi
 66 psi


deg F
deg F


ASTM D648
ASTM D648


200 - 400
400 - 430

Continuous Service Temp. in Air

deg F

-

210

Intermittent Service Temp.

deg F

-

300

Coefficient of Friction Dynamic (1)

-

-

0.22

Water Absorption
 24 Hours
 Full Saturation


%
%


ASTM D570
ASTM D570


0.5 - 0.6
4.0 - 5.0

Dielectric Strength (Short Time)

v/mil.

ASTM D149

500 - 600

Dielectric Constant
 @ 60 Cycles
 @ 1,000 Cycles
 @ 100,000 Cycles


-
-
-


ASTM D150
 


3.7
3.7
3.7


This information is presented as a guide for material comparison only, and as such design criteria should be verified through testing. Cast Nylons Ltd. makes no expressed or implied warranty for materials selected solely on the basis of the information contained herein.

(1) Measured on thrust washer machine, unlubricated @ 10fpm and 250lb/in2.

 

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