Martin Authentic Silk and Steel Acoustic Strings 11.5-47
- 11.5 to 47 custom gauge: 0.0115 high E to 0.047 low E
- Silk and steel folk strings
- Highest tensile-strength core wire
- Tension 122.2 listed
Last refreshed Sep 7, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A silk and steel folk set with a custom gauge range and a core made for strength and tuning stability. The listing gives no weight, pack count or warranty.
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ASIN: B07GTCQKMSCategory: Acoustic Guitar Strings
Sizes Available
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Overview
A rehearsal room or a gig stage is where the maker pitches this silk and steel set, built for tuning stability and corrosion resistance. A high tensile core is paired with quality wrap wire, and the gauges span a thin high string to a heavier low one.
A brighter tone and a stable pitch are what the maker promises for fingerpickers and flat pickers alike. The limitation is thin practical data, since there are no pack counts, weight or warranty details.
Who it's for
Players across country, bluegrass, folk, blues and rock who want a lighter feel with reliable pitch. A player who needs full set details, such as count and weight, should check the maker.
Pros and cons
- Highest tensile-strength core wire
- Corrosion resistance from the wrap
- Custom gauge, thin to heavy
- Tuning stability described
- Pack count not stated
- Warranty and weight not listed
Performance notes
A strong core wire holds tension steadily, which is what supports tuning stability during long sets. The wrap wire adds corrosion resistance and sets how bright the string sounds. Because of the custom light gauge, bends take less effort than on medium sets.
Specifications
| Brand | Martin |
|---|---|
| Construction & materials | |
| String Material Type | Silk and HT steel |
| Other details | |
| String Gauge | Custom, 11.5 to 47 |
| Instrument | Acoustic guitar |
| Gauges | 0.0115 to 0.047 inches |
| Sound Profile | Bright and rich |
| Core | Highest tensile-strength wire |
| Total tension | 122.2 |
Frequently asked questions
Are Martin Authentic SP Silk and HT Steel strings bronze?
No. They are silk and steel folk strings, not bronze or phosphor bronze.
What gauge are the Martin 11.5-47 strings?
The listing gives a custom set measuring 0.0115 for the high E up to 0.047 for the low E.
Can I use these Martin strings for flat-picking?
Yes. The listing names fingerpicking, flat picking and other methods.