ABS
Acrylonitrile Butadiene Styrene — the most widely used amorphous engineering/commodity thermoplastic. Excellent balance of toughness, rigidity, and processability. Good surface finish and paintability. Not UV-stable without additives. Trade names include Novodur (INEOS Styrolution), Terluran (INEOS), Cycolac (SABIC). Used for automotive interior trim, appliance housings (vacuum cleaners, monitors), LEGO bricks, 3D printing filament, and pipe fittings.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| ISO | INT | ABS | — | REF | |
| 🇺🇸 | ASTM | USA | ASTM D4673 | — | 100% |
Sources: ISO 2580, ASTM D4673
Chemical composition comparison (wt%)
Side-by-side: ABS (COMPOSITION) (ISO 2580) vs ASTM D4673 (ASTM)
| Element | ABS (COMPOSITION) | ASTM D4673 (ASTM) | Overlap |
|---|---|---|---|
| Acrylonitrile | 15–35% | — | — |
| Butadiene | 5–30% | — | — |
| Styrene | 40–60% | — | — |
Mechanical properties
Injection Molded
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 38–50 | MPa |
| Yield Strength | 40–48 | MPa |
| Elongation | 10–30 | % |
| Elastic Modulus | 2–2.6 | GPa |
| Density | 1.04–1.07 | g/cm3 |
| Glass Transition Temp (Tg) | 100–110 | °C |
| Water Absorption (24h) | 0.2–0.4 | % |
General
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 40–50 | MPa |
| Tensile Modulus | 2100–2600 | MPa |
| Elongation at Break | 10–50 | % |
| Charpy Impact (notched) | 15–25 | kJ/m² |
| Density | 1.04–1.07 | g/cm³ |
| HDT/B (0.45 MPa) | 90–105 | °C |
| Vicat Softening Temp | 96–110 | °C |
| Water Absorption (24h) | 0.2–0.4 | % |
Compatibility verdict
ABS and ASTM D4673: 100% composition match
Close equivalents but NOT identical.
Related materials
EPDM (Ethylene Propylene Diene Rubber)
Ethylene propylene diene monomer rubber — THE outdoor/weather elastomer. Saturated backbone gives outstanding ozone, UV, and weathering resistance. Excellent resistance to steam, hot water, and polar solvents. NOT resistant to oils/fuels (opposite of NBR). Good electrical insulation. ρ 0.85-1.3 (lightest common rubber). Used for automotive door/window seals, roofing membranes, radiator hoses, HVAC gaskets, and pond liners.
Epoxy/Carbon Fiber (CFRP)
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FKM (Fluoroelastomer / Viton)
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