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What is the difference between 1x3 and 1x7 PC steel strand structures for prestressed concrete?
1x3 vs 1x7 PC steel strand: structure differences
The primary difference is the number of wires twisted together. Current product records for this group list the 1x7 strand configuration (7 wires twisted together). Available details include 12.7 mm diameter in product titles, with grades 77B and 82B listed against GB, ASTM, JIS, ISO, or BS standards. The group data also contains the attribute wording spiral ribbed PC wire and indented PC wire; confirm surface wording for the selected product. The 1x3 (3-wire) structure is not present in current product records — inquire for availability.
1x7 strand (7-wire) — listed in current product records
- Seven wires twisted together
- Diameter 12.7 mm from product titles
- Grades 77B and 82B in product attributes
- Standards: GB, ASTM, JIS, ISO, BS
1x3 strand (3-wire) — not present in current product records
- Three wires twisted together
- Not listed in current product records for this group
- Inquire for availability and specifications
- Contact us with your project requirements
The 1x3 structure is not present in the current product records for this group. Specify your required structure, diameter, grade, and standard in an inquiry so availability can be confirmed.