ナイロン・グレード完全ガイド:PA6、PA66、PA11、PA12など

Nylon grades comprehensive guide
Choosing the right nylon grade is critical for engineering success

Nylon isn’t one material—it’s a family of polyamides with distinctly different properties. From the workhorse PA6 to the premium PA12, understanding the full range of nylon grades helps you select the optimal material for your application.

The Nylon Family Overview

グレード タイプ 融点 Moisture (50% RH) Key Characteristic
PA6 Aliphatic 220°C 2.7% Toughness, processability
PA66 Aliphatic 260°C 2.5% Strength, heat resistance
PA11 Bio-based 185°C 0.8% Flexibility, low moisture
PA12 Aliphatic 178°C 0.7% Lowest moisture absorption
PA46 Aliphatic 295°C 3.5% Highest heat resistance
Nylon grade comparison chart
Each nylon grade fills a specific performance niche

PA6: The Versatile Workhorse

PA6 is the most widely used nylon grade, representing approximately 60% of nylon consumption. It offers an excellent balance of strength, toughness, and processability.

主要物件

  • Tensile strength: 70-85 MPa
  • Excellent impact resistance
  • Good surface finish and colorability
  • Wider processing window than PA66

PA66: The High-Performance Standard

PA66 applications in automotive
PA66 dominates under-hood automotive applications

PA66 offers approximately 10-15% higher strength and stiffness than PA6, with superior heat resistance. It’s the preferred choice for demanding applications.

PA11 and PA12: The Specialty Nylons

PA11 and PA12 are distinguished by their exceptionally low moisture absorption—less than 1% even at saturation. This gives them outstanding dimensional stability.

PA11 and PA12 applications
PA11 and PA12 excel in chemical resistance and dimensional stability

PA46: The High-Temperature Specialist

PA46 (Stanyl) offers the highest heat resistance of any aliphatic nylon, with a melting point of 295°C.

Selection Guide

Requirement Recommended Grade
General purpose, cost-sensitive PA6
High temperature (>120°C) PA66, PA46
Wet/humid environment PA12, PA11
Maximum stiffness PA66-GF30/50

当社の能力

を超える。 300台のCNCマシン, を生産している。 毎日10,000個 という厳しい公差で ±0.005mm. .我々は受け入れる 1個からのMOQ, 納期は以下の通り。 24時間~15日間. We supply all major nylon grades. 24時間以内にお見積もりいたします。.

よくあるご質問

How do you know whether The Complete Guide to Nylon Grades: PA6, PA66, PA11, PA12 and More fits a part?

The Complete Guide to Nylon Grades: PA6, PA66, PA11, PA12 and More fits a part when its load capacity, temperature range, moisture exposure, wear behavior, and processing method match the real service conditions.

What properties should be checked for The Complete Guide to Nylon Grades: PA6, PA66, PA11, PA12 and More?

Check strength, stiffness, impact resistance, heat resistance, moisture absorption, dimensional stability, friction, wear, and chemical compatibility.

What is the biggest selection risk for The Complete Guide to Nylon Grades: PA6, PA66, PA11, PA12 and More?

The biggest risk is choosing from a datasheet value without considering actual environment, processing method, part geometry, and long-term use.

When should The Complete Guide to Nylon Grades: PA6, PA66, PA11, PA12 and More be tested before production?

Testing is recommended when the part faces load, heat, chemicals, moisture, tight tolerances, regulatory requirements, or a new operating environment.

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