PA12 (Nylon 12) vs PBT GF30: 0% composition overlap. Significantly different materials serving different application areas.
PA12 (Nylon 12) vs PBT GF30
Side-by-side chemical composition and mechanical property comparison.
Overview
PA12 (Nylon 12)
Polyamide 12 — the long-chain polyamide with the lowest moisture absorption of all PA grades (0.1-0.15% vs PA6: 1.5%). Excellent dimensional stability in humid environments. Best chemical resistance among polyamides (oils, fuels, hydraulic fluids). Lowest density of all PA (1.01 g/cm³). Also the dominant 3D printing (SLS/MJF) material. Trade names include Rilsamid (Arkema), Grilamid L (EMS), TECAMID 12 (Ensinger), Vestamid L (Evonik). Used for fuel lines, brake lines, pneumatic tubing, cable sheathing, and 3D-printed functional parts.
PBT GF30
Polybutylene Terephthalate with 30% glass fiber — THE connector and electrical component material. Key advantage over PA6 GF30: near-zero moisture absorption (0.02-0.2%), so mechanical and electrical properties are stable regardless of humidity. Lower UTS than PA6 GF30 but consistent. Trade names include Ultradur B4300 G6 (BASF), Valox 420 (SABIC), Celanex (Celanese), Crastin (DuPont). Used for electrical connectors, relay housings, coil formers, automotive sensors, and any part requiring dimensional stability in humid environments.
| PA12 (Nylon 12) | PBT GF30 | |
|---|---|---|
| Material Number | — | — |
| Category | Polymers | Polymers |
| Standard | ISO 10350 | ISO 10350 |
Chemical composition (wt%) — Pro
| Element | PA12 (Nylon 12) | PBT GF30 | Overlap |
|---|---|---|---|
| Polylaurolactam (from laurolactam/12-aminolauric acid) | 99–99.9% | — | — |
| PBT (Base Polymer) | — | 68–72% | — |
| Glass Fiber Reinforcement | — | 28–32% | — |
Mechanical properties — Pro
| Property | PA12 (Nylon 12) | PBT GF30 | Unit |
|---|---|---|---|
| Tensile Strength | 45–60 | 145–165 | MPa |
| Yield Strength | 40–50 | — | MPa |
| Elongation | 100–300 | 2–3 | % |
| Elastic Modulus | |||
| Density | |||
| Melting Point | |||
| Water Absorption (24h) | |||
| hdt_1_8mpa | |||
| Tensile Strength | |||
| Tensile Modulus | |||
| Elongation at Break | |||
| Charpy Impact (notched) | |||
| Density | |||
| Melting Point | |||
| HDT/A (1.8 MPa) | |||
| Water Absorption (24h) | |||
| Glass Fiber Content |
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PA12 (Nylon 12) and PBT GF30 have significantly different compositions (0% overlap). These materials are not interchangeable and serve different application areas.
Automated assessment based on composition analysis
Frequently Asked Questions
Is PA12 (Nylon 12) the same as PBT GF30?
PA12 (Nylon 12) and PBT GF30 have a 0% composition overlap. They are generally not directly interchangeable.
Can I replace PA12 (Nylon 12) with PBT GF30?
Generally not recommended. The compositions differ significantly (0% overlap). These materials have different alloying concepts and are intended for different applications.
What is the difference between PA12 (Nylon 12) and PBT GF30?
The main differences are in the following elements: overall alloying content. PA12 (Nylon 12) is a Polymers grade, while PBT GF30 is a Polymers grade.
Related Comparisons
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Data provided for reference only. Always verify against the applicable specification for critical applications.
All data is for reference only. Equivalents indicate similarity, not identity. Always verify against the applicable specification for safety-critical applications. materialref.com accepts no liability for decisions based on this data.