10-27 EJ38H is a Phosphor Bronze set designed for guitarists using a High Strung or Nashville tuning. Since D'Addario introduced Phosphor Bronze guitar strings in 1974, they have been synonymous with warm and well-balanced acoustic tone. String Tension Chart Item #NoteDiameterTension PL010 E 0.0100 in 16.220 lbs PL014 B 0.0140 17.850 PL009 G 0.0090 18.580 PL012 D 0.0120 18.540 PL018 A 0.0180 23.410 PB027 E 0.0270 26.910 Product Features

• Coating: Uncoated
• Tuning: Nashville
• Number Of Strings: 6
• Set Type: Sets
• Wrap Material: Phosphor Bronze

• Designed and gauged for "High Strung" or "Nashville" tuning methods
• Phosphor Bronze, preferred for its warm, bright, and well balanced acoustic tone
• Environmentally friendly, corrosion resistant packaging for strings that are always fresh
• All D'Addario strings are designed, engineered, and manufactured in the USA
• String Gauges: Plain Steel .010, .014, .009, .012, .018. Phosphor Bronze Wound .027

Does D’Addario have an online string tension guide?

Yes. We offer String Tension Pro - a free, easy-to-use website that allows you to create customized string sets, compare string sets, and determine the optimum gauges for your instrument and tuning. To learn more, click here.

How can I extend the life of my strings?

There are many factors that can affect the lifespan of your strings. Here are some tips to help extend the life of your strings:

1. Wipe down your strings after each use.

2. Try D’Addario XT strings, which utilize a proprietary treatment to extend lifespan, while preserving the tone and feel of your favorite uncoated strings. 

3. Try these maintenance and care products to prolong string life and performance. 

How do I restring my guitar?

Check out the videos to learn the restringing process for electric, acoustic, classical, bass, and other instruments. You will also find videos on restringing, tuning, humidification, and general maintenance.