| Material recommendation - Step 4
Before proceeding to steps 5-6 it may be appropriate to consider additional material characteristics including:
Relative Impact Resistance/Toughness
Dimensional Stability
Regulatory/Agency Compliance
Materials with higher tensile elongation, Izod impact and tensile impact strengths are generally tougher and less notch sensitive for shock loading applications (See Table 1).
Step 5
| Mechanical Property Comparisons | | | Tensile
Strength
psi | Compressive
Strength
psi | Flexural
Modulus
psi | Elongation
% | Izod
Impact
(73°F) | Water
Absorp.
(24hr.) | | Nylatron® NSM Nylon | 11,000 | 14,000 | 475,000 | 20 | 0.5 | 0.25 | | Acetron® GP Acetal | 9,500 | 15,000 | 400,000 | 30 | 1.0 | 0.2 | | Ertalyte® PET-P | 12,400 | 15,000 | 490,000 | 20 | 0.5 | 0.07 | | Radel® R PPSU | 11,000 | 13,400 | 345,000 | 30 | 2.5 | 0.37 | | Ultem®1000 | 16,500 | 22,000 | 500,000 | 80 | 0.5 | 0.25 | | Ultem® 2300 | 17,000 | 32,000 | 900,000 | 3 | 1.0 | 0.18 | | Fluorosint®500 | 1,100 | 4,000 | 500,000 | 10 | 0.9 | 0.10 | | Techtron® PPS | 13,500 | 21,500 | 575,000 | 15 | 0.6 | 0.01 | | 40% GF Ryton* PPS | 13,000 | 24,000 | 1,000,000 | 2 | 1.0 | 0.02 | | Ketron®(Extd) PEEK | 16,000 | 20,000 | 600,000 | 20 | 1.0 | 0.10 | | 30% GF Ketron (Extd) | 18,000 | 26,000 | 1,000,000 | 3 | 1.4 | 0.10 | | Torlon* 4203 PAI | 18,000 | 30,000 | 600,000 | 5 | 2.0 | 0.33 | | Torlon* 4201 PAI | 12,000 | 24,000 | 1,000,000 | 3 | 0.8 | 0.28 | | Torlon* 5530 PAI | 14,000 | 27,000 | 900,000 | 3 | 0.7 | 0.30 | | Duratron® XP | 13,500 | 19,000 | 530,000 | 3 | 0.6 | 0.62 | | Duratron® 150 XP | 9,600 | 17,000 | 610,000 | 1.5 | 0.5 | 0.65 | | Celazole* PBI | 23,000 | 50,000 | 950,000 | 3 | 0.5 | 0.40 | |
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