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SS Grades - Typical Physical Properties

Property

Soft

SS10

Medium-Soft

SS20

Medium-Firm

SS30

Firm

SS40

Density

lbs/cu.ft 

(g/cc)

6-15

(0.1-0.25)

15-24

(0.25-0.4)

24-32

(0.4-0.5)

32-40

(0.5-0.65)

Compression – Deflection, 25%

psi

(kPa)

2-5

(14-34)

6-9

(42-63)

9-13

(63-91)

13-17

(91-117)

Tensile Strength

ASTM D412

psi

(kPa)

70

(550)

200

(1370)

250

(1720)

300

(1035)

Elongation

ASTM D412

% 150 230 215 200
Water Absorption % 5 5 2 1

Compression Set

22hrs/212oF(100oC)/50%

% 15 6 8 9

Brittleness Temp.

ASTM D746

oF

(oC)

-110

(-80)

-110

(-80)

-110

(-80)

-110

(-80)

(K) Thermal Conductivity

BTUin/hrft2oF

(W/moK)

0.35

(0.06)

0.50

(0.09)

0.60

(0.11)

0.65

(0.12)

Certification Possible ASTM D1056 2D1 2D2 2D3 2D4
AMS 3195 / 6   3195 3195 3196

 

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