13-56 ECG26 is D'Addario's heaviest gauge of flat wounds. This set delivers smooth feel, warm/mellow tone and maximum tension. XL Chromes are noted for their smooth feel and warm, mellow tone, essential to the sound and style of many jazz, blues, and rock players. String Tension Chart Item #NoteDiameterTension PL013 E 0.0130 in 27.420 lbs PL017 B 0.0170 26.310 CG026 G 0.0260 39.830 CG035 D 0.0350 35.860 CG045 A 0.0450 33.300 CG056 E 0.0560 27.650 Product Features

• Coating: Uncoated
• Tuning: Standard
• Number Of Strings: 6
• Set Type: Sets
• Wrap Material: Stainless Steel

• D'Addario's heaviest gauge of flat wounds delivers smooth feel, warm/mellow tone and maximum tension
• Ribbon wound and polished for ultra-smooth feel and warm, mellow 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 .013, .017, Stainless Steel Flat Wound .026, .035, .045, .056

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.