7-wire prestressing strand
12.9 mm LRPC Strand Coil
- 1860 MPa nominal tensile strength
- 186 kN minimum break load
- IS 14268:2022
LRPC stands for low-relaxation prestressed concrete strand. Wire Shoppe P Ltd supplies Tata Wiron 12.9 mm LRPC strand coils and 15.2 mm LRPC strand coils from Nagpur across India. For buyers comparing these sizes, the specified standard is IS 14268:2022 and the nominal tensile strength is 1860 MPa. The maximum relaxation loss is 2.5% after 1,000 hours at 70% of the minimum breaking load.
Explore the individual product pages for the specifications of each coil size, or visit our technical resources for further product information. When requesting a quotation, share the strand size, required quantity and delivery location so your enquiry identifies what you need. You can also explore our supply locations or contact Wire Shoppe to discuss your requirement. Start with the product that matches your enquiry below.
Tata make
LRPC: IS 14268:2022
LRPC: 1860 MPa grade
Pan-India supply
Core product range
Four critical products. One reliable source.
Built for procurement teams, contractors, precast manufacturers and infrastructure companies that need clear specifications and fast commercial response.
7-wire prestressing strand
15.2 mm LRPC Strand Coil
- 1860 MPa nominal tensile strength
- 259 kN minimum break load
- IS 14268:2022
High-tensile steel strand
3 mm × 3-Ply HT Strand Coil
- High-tensile steel strand
- Coil supply
- Project quantity enquiries
Prestressed concrete wire
4 mm Prestressed Wire Coil
- Prestressed concrete wire
- Coil supply
- Bulk project requirements
≤ 2.5%relaxation loss at 1,000 h
What is LRPC strand?
High-strength steel engineered to retain prestress.
LRPC stands for Low Relaxation Prestressed Concrete. Seven high-tensile steel wires are stranded and stabilised to limit long-term stress loss. Tata’s technical delivery condition specifies a maximum relaxation loss of 2.5% after 1,000 hours when tested at 70% of the minimum specified breaking load.
Higher effective tendon force
Uniform stress–strain behaviour
Strong fatigue resistance
Straight, consistent coil characteristics
Verified specifications
Technical clarity before you order.
Core LRPC values below are taken from the supplied Tata Steel Technical Delivery Condition for IS 14268:2022.
| Specification | 12.9 mm | 15.2 mm |
|---|---|---|
| Nominal area | 100 mm² | 139 mm² |
| Minimum breaking load | 186 kN | 259 kN |
| Nominal unit weight | 781 g/m | 1,086 g/m |
Specifications common to both sizes
IS 14268:2022 · Nominal tensile strength: 1860 MPa · Minimum elongation: 3.5%
Refer to the technical sheet for complete tolerances and test conditions.
Have a strand requirement? Request a quotation →
Standards-led
LRPC strand specification aligned to IS 14268:2022.
Project supply
Coil-format material for major construction requirements.
Documents ready
Product brochure and technical delivery sheet available.
Where it performs
Specified for demanding infrastructure.
Low relaxation PC strand is used wherever concrete structures require reliable, long-term prestressing performance.
Bridges & flyovers
Road, river and railway bridge girders
Metro & rail
Viaducts, elevated structures and sleepers
Buildings & slabs
High-rise structures and post-tensioned slabs
Water & energy
Silos, aqueducts, dams and reactor domes
Wire Shoppe at a glance
Incorporated in 2010
Wire Shoppe P Ltd was incorporated in 2010.
About Wire ShoppeAuthorised Tata dealer
Wire Shoppe P Ltd is an authorised Tata dealer.
Explore our product rangeTest certificates with every lot
Test certificates are supplied with every lot.
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Dispatch within 1–2 days after order confirmation and receipt of advance payment.
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Supply locations
LRPC strand supply across India
Wire Shoppe P Ltd supplies Tata Wiron LRPC strand from Nagpur across India. Share your required strand size, quantity and delivery location with our team to discuss your requirement.
LRPC strand: frequently asked questions
What is LRPC strand?
LRPC stands for low-relaxation prestressed concrete strand. It consists of seven high-tensile steel wires stranded together and stabilised to limit long-term stress loss. Wire Shoppe P Ltd supplies Tata Wiron LRPC strand in 12.9 mm and 15.2 mm coils from Nagpur across India.
What does IS 14268:2022 cover?
IS 14268:2022 covers uncoated, stress-relieved, low-relaxation seven-wire strand for prestressed concrete. The Tata technical sheet references this standard and lists strand dimensions, breaking loads, elongation and relaxation requirements. Refer to the downloadable technical sheet for the listed product specifications, tolerances and test conditions.
What is the difference between LRPC strand and PC wire?
The Tata technical sheet describes LRPC strand as a seven-wire product, with a central wire surrounded by six wires. Wire Shoppe lists prestressed wire separately in its catalogue. The LRPC sheet does not specify that wire product’s properties; consult the respective product specifications when comparing them.
What is the minimum breaking load of 12.9 mm and 15.2 mm LRPC strand?
The listed minimum breaking load is 186 kN for 12.9 mm LRPC strand and 259 kN for 15.2 mm LRPC strand. These values come from the supplied Tata Steel Technical Delivery Condition. Both sizes have a listed nominal tensile strength of 1860 MPa.
What does 2.5% relaxation mean?
The supplied technical condition specifies a maximum relaxation loss of 2.5% after 1,000 hours when tested at 70% of the minimum specified breaking load. This figure describes relaxation under those stated test conditions. Refer to the technical delivery sheet for the complete requirements.
Do you supply LRPC strand across India?
Yes. Wire Shoppe P Ltd supplies Tata Wiron LRPC strand from Nagpur across India, including Maharashtra. Share your delivery city or state, required strand size and quantity when making an enquiry. Visit our supply locations page or contact Wire Shoppe to discuss your requirement.
How do I get a quote, and what is the minimum order quantity?
Request a quotation through the website form, or contact Wire Shoppe by phone or WhatsApp. Share your required strand size, quantity, delivery location and timeline. For the minimum order quantity, please call or WhatsApp +91 93731 01948 and confirm the requirement with our team.
Which documents can I download?
You can download the Tata Wiron LRPC product brochure and the Tata Steel Technical Delivery Condition sheet using the links on this website. The technical sheet provides further specification details, tolerances and test conditions. These downloads are separate from any lot-specific test certificate.
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