Low relaxation prestressed concrete strand
Tata LRPC strand supplier in India
LRPC means low relaxation prestressed concrete strand. It is a 7-wire prestressing steel product used to introduce prestress into concrete; low relaxation limits loss of stress under the stated test conditions. Wire Shoppe lists Tata make 12.9 mm and 15.2 mm strand coils, supplied from Nagpur for project enquiries across India.
PC strand, short for prestressed concrete strand, is also called prestressing steel strand: several high-tensile wires twisted together into one strand, such as the 7-wire construction listed here. It is a different product form from PC wire, which is a single prestressed concrete wire such as the listed 4 mm coil. The two are not interchangeable; the project specification states which one is required.
Use the approved drawings, tendon schedule and project specification to identify the required product. Strand diameter alone is not a basis for substituting one size for another. HT strand and PC wire are separate product forms within our four-product catalogue.
Compare the two listed LRPC sizes
These values come from the existing product specifications. Both sizes list 1860 MPa nominal tensile strength. Follow the source technical delivery condition for complete tolerances and test requirements.
| Specification | 12.9 mm LRPC Strand | 15.2 mm LRPC Strand |
|---|---|---|
| Nominal diameter | 12.9 mm | 15.2 mm |
| Cross-sectional area | 100 mm² | 139 mm² |
| Minimum break load | 186 kN | 259 kN |
| 0.2% proof load / load at 1% extension | 164 kN | 228 kN |
| Minimum elongation | 3.5% | 3.5% |
| Nominal unit weight | 781 g/m | 1,086 g/m |
| Standard | IS 14268:2022 | IS 14268:2022 |
The supplied technical delivery condition states a maximum relaxation loss of 2.5% after 1,000 hours at 70% of the minimum specified breaking load. Do not generalise this value beyond that test condition.
Read the size comparison guideSupplied technical documents
Check the original Tata LRPC documents alongside project requirements. These sources cover LRPC strand; they are not technical sheets for the listed 3-ply HT strand or 4 mm PC wire.
Project applications and procurement guidance
Start with the guidance relevant to your package, then confirm the specified product and acceptance clauses with the project team. These pages explain procurement considerations, not structural design or installation services.
Sourcing and quotation checklist
- Specify Tata make, the approved strand diameter, standard and required technical values.
- State quantity and unit, project or package reference, and any staged quantity requirements.
- Provide the delivery city, state and exact site destination, plus your required delivery date for confirmation.
- Reference the BOQ, tendon schedule and any project-specific testing or document requirements.
- Ask suppliers to clarify freight, taxes, delivery terms and quotation validity on a comparable basis.
- Include buyer name, company and contact details for follow-up.
Frequently asked questions
Which LRPC strand sizes does Wire Shoppe list?
Tata make 12.9 mm and 15.2 mm 7-wire LRPC strand coils, both with 1860 MPa nominal tensile strength to IS 14268:2022. The catalogue also lists 3 mm × 3-ply HT strand and 4 mm PC wire as separate product forms.
Is Wire Shoppe the manufacturer?
No. The listed strand and wire are Tata make products; Wire Shoppe P Ltd is a Nagpur-based supplier that handles project enquiries and quotations for them.
What should a quotation request include?
The specified product and diameter, quantity and unit, delivery city and state, required timeline, and any applicable standard or project acceptance requirements, along with your company name and contact details.
Do you deliver outside Nagpur?
Project enquiries are accepted from across India. Delivery arrangements, freight and timelines are confirmed individually against each enquiry; no regional stock or delivery schedule is assumed. See Nagpur and Maharashtra supply information.
Request a project-specific quotation
Rates are quoted against product, quantity and delivery destination. No fixed or indicative price is published. Submit the quotation form to save your enquiry securely with Wire Shoppe; sharing the same details on WhatsApp is optional.
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