ABS Material
Physical Properties
ABS typically appears as ivory or light yellow pellets with a density of 1.04-1.18 g/cm³. It features low molding shrinkage (0.4%-0.9%), high surface gloss (approximately 90%), and is easily colored and painted. Its moisture absorption is below 1%, with a melting temperature of 217-237°C and a thermal decomposition temperature exceeding 250°C.
Mechanical Properties
1. Impact Resistance: ABS retains toughness even at low temperatures (-40°C), with a Charpy notched impact strength of [Value Missing] J/m². (Note: The original text had a placeholder for the impact strength value).
2. Strength Parameters: Tensile strength: 33-43 MPa; Flexural strength: 69-72 MPa; Elastic modulus: 2 GPa.
3. Wear Resistance & Dimensional Stability: Suitable for moderate-load bearing applications, though its creep resistance is inferior to nylon (PA) and polyoxymethylene (POM).
Thermal Properties
1. Heat deflection temperature: 93-124°C; Can exceed 100°C when modified (e.g., eABS-HT).
2. Prolonged exposure to UV light or high temperatures may cause aging, necessitating protective measures.
ABS Features and Benefits
1. Easy to process, strong, low-cost rigid thermoplastic with high impact strength.
2. Ideal for turning, drilling, milling, sawing, die-cutting, and shearing.
3. Good chemical resistance and stress cracking resistance to inorganic salt solutions, alkalis, acids, and certain oils.
4. Excellent wear resistance; electrical properties; moisture resistance; and creep resistance.
5. Tolerances in the dimensional shear calculator are machining tolerances, not thickness tolerances.