LRPC / HT Strands

What is LRPC / HT?

LRPC, an acronym for Low Relaxation Pre-stressed steel strands, represents the phenomenon where pre-stressed steel strands gradually release their initially applied stress in a mathematically proportionate manner as they become embedded in concrete.

The primary contributing factor to this stress reduction is the inherent property of steel known as stress relaxation. Through a thermo-mechanical process referred to as ‘stabilizing,’ steel’s tendency to “relax” under a stressed condition is effectively controlled. Low relaxation ensures that there will be no significant loss of tension over time, resulting in a sustained compressive force on the concrete.
Our Prestressed Concrete Steel Strands when embedded in concrete, release some applied stress exponentially. Low relaxation makes sure that, over time, there is negligible loss of tension. This gives lasting compressive strength to concrete, making it more durable.

What is LRPC / HT?
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LRPC Strands (Bonded)
01

LRPC Strands (Bonded)

Kataria Industries Ltd. LRPC Strands, known for their exceptional mechanical properties, are distinguished by their superior quality, robustness, and resistance to adverse weather conditions. These uncoated strands are also referred to as bonded LRPC strands.

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Polymer-Coated Grease/Wax-Filled LRPC Strands (Un-Bonded)
02

Polymer-Coated Grease/Wax-Filled LRPC Strands (Un-Bonded)

Our LRPC Strands are enhanced with a uniform, sleek, thermoplastic polymer sheathing that shields against contaminants, offers cushioning, and provides abrasion resistance, significantly extending the lifespan of the LRPC strands. In this product, the bare strands are impregnated with Grease/Wax before being enveloped in a polymer coating.

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Galvanized LRPC Strands
03

Galvanized LRPC Strands

Our Galvanized LRPC strands are zinc-coated to confer resistance to corrosion, resulting in an extended structural lifespan. This product can be tailored to meet specific technical requirements specified by the customer. The galvanization weight can be customized according to customer preferences, ranging from 190 to 340 grams per square meter.

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Polymer-Coated Grease/Wax-Filled Galvanized LRPC Strands
04

Polymer-Coated Grease/Wax-Filled Galvanized LRPC Strands

Our LRPC strands are zinc-coated, and these galvanized strands receive an additional polymer coating. The application of Grease/Wax can be tailored to meet the customer's specific requirements.

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Specialized LRPC Strands
05

Specialized LRPC Strands

These threads represent the embodiment of our company's relentless commitment to innovation. They are born from our firm's steadfast dedication to fostering new product development and the drive to surpass our own benchmarks continually.

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LRPC / HT Strands

Technical Data Sheet (Indian Specification)

Sr.No. Descriptions UOM Specified Values
9.60 mm 12.90 mm 15.20 mm 15.70 mm
1 Strand Designation - 9.60-1860-P 12.90-1860-P 15.20-1860-P 15.70-1860-P
2 Nominal Diameter mm 9.60 12.90 15.20 15.70
3 Diameter Toerance - General Tolerance will be Applicable based on Specified Weight Tolerance
4 Nominal Area Sq. mm 55 100 139 150
5 Unit Weight Kg/Km 429.6 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum 0.2% Proof Load kN 89.8 164 228 246
10 Breaking Load (Minimum) kN 102 186 259 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
13 Relaxation % (Under Load -70% of Specified Breaking Load.)
(a) For 100 Hours % Relaxation losses should not more than 1.8
(b) For 1000 Hours % Relaxation losses should not more than 2.5

Technical Data Sheet (European Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (British Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (American Specification)

Sr.No. Descriptions UOM Specified Values
9.53 mm 12.70 mm 15.20 mm 15.70 mm
1 Grade – 270 [1860] 270 [1860] 270 [1860] 270 [1860]
2 Nominal Diameter mm 9.53 12.70 15.20 15.70
3 Diameter Tolerance mm +0.65/-0.15 +0.65/-0.15 +0.65/-0.15 +0.65/-0.15
4 Nominal Area Sq. mm 55.00 98.70 140 150
5 Unit Weight Kg/Km 430 780 1100 1200
6 Weight Tolerance - General Tolerance will be Applicable based on Specified Diameter Tolerance Given
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum Load at 1.0% Extension kN 92.1 165.3 234.6 251.0
10 Breaking Load (Minimum) kN 102 184 261 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Maximum Relaxation - 1000 Hrs (for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

LRPC / HT Strands

Technical Data Sheet (Indian Specification)

Sr.No. Descriptions UOM Specified Values
9.60 mm 12.90 mm 15.20 mm 15.70 mm
1 Strand Designation - 9.60-1860-P 12.90-1860-P 15.20-1860-P 15.70-1860-P
2 Nominal Diameter mm 9.60 12.90 15.20 15.70
3 Diameter Toerance - General Tolerance will be Applicable based on Specified Weight Tolerance
4 Nominal Area Sq. mm 55 100 139 150
5 Unit Weight Kg/Km 429.6 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum 0.2% Proof Load kN 89.8 164 228 246
10 Breaking Load (Minimum) kN 102 186 259 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
13 Relaxation % (Under Load -70% of Specified Breaking Load.)
(a) For 100 Hours % Relaxation losses should not more than 1.8
(b) For 1000 Hours % Relaxation losses should not more than 2.5

Technical Data Sheet (European Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (British Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (American Specification)

Sr.No. Descriptions UOM Specified Values
9.53 mm 12.70 mm 15.20 mm 15.70 mm
1 Grade – 270 [1860] 270 [1860] 270 [1860] 270 [1860]
2 Nominal Diameter mm 9.53 12.70 15.20 15.70
3 Diameter Tolerance mm +0.65/-0.15 +0.65/-0.15 +0.65/-0.15 +0.65/-0.15
4 Nominal Area Sq. mm 55.00 98.70 140 150
5 Unit Weight Kg/Km 430 780 1100 1200
6 Weight Tolerance - General Tolerance will be Applicable based on Specified Diameter Tolerance Given
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum Load at 1.0% Extension kN 92.1 165.3 234.6 251.0
10 Breaking Load (Minimum) kN 102 184 261 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Maximum Relaxation - 1000 Hrs (for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

LRPC / HT Strands

Technical Data Sheet (Indian Specification)

Sr.No. Descriptions UOM Specified Values
9.60 mm 12.90 mm 15.20 mm 15.70 mm
1 Strand Designation - 9.60-1860-P 12.90-1860-P 15.20-1860-P 15.70-1860-P
2 Nominal Diameter mm 9.60 12.90 15.20 15.70
3 Diameter Toerance - General Tolerance will be Applicable based on Specified Weight Tolerance
4 Nominal Area Sq. mm 55 100 139 150
5 Unit Weight Kg/Km 429.6 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum 0.2% Proof Load kN 89.8 164 228 246
10 Breaking Load (Minimum) kN 102 186 259 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
13 Relaxation % (Under Load -70% of Specified Breaking Load.)
(a) For 100 Hours % Relaxation losses should not more than 1.8
(b) For 1000 Hours % Relaxation losses should not more than 2.5

Technical Data Sheet (European Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (British Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (American Specification)

Sr.No. Descriptions UOM Specified Values
9.53 mm 12.70 mm 15.20 mm 15.70 mm
1 Grade – 270 [1860] 270 [1860] 270 [1860] 270 [1860]
2 Nominal Diameter mm 9.53 12.70 15.20 15.70
3 Diameter Tolerance mm +0.65/-0.15 +0.65/-0.15 +0.65/-0.15 +0.65/-0.15
4 Nominal Area Sq. mm 55.00 98.70 140 150
5 Unit Weight Kg/Km 430 780 1100 1200
6 Weight Tolerance - General Tolerance will be Applicable based on Specified Diameter Tolerance Given
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum Load at 1.0% Extension kN 92.1 165.3 234.6 251.0
10 Breaking Load (Minimum) kN 102 184 261 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Maximum Relaxation - 1000 Hrs (for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

LRPC / HT Strands

Technical Data Sheet (Indian Specification)

Sr.No. Descriptions UOM Specified Values
9.60 mm 12.90 mm 15.20 mm 15.70 mm
1 Strand Designation - 9.60-1860-P 12.90-1860-P 15.20-1860-P 15.70-1860-P
2 Nominal Diameter mm 9.60 12.90 15.20 15.70
3 Diameter Toerance - General Tolerance will be Applicable based on Specified Weight Tolerance
4 Nominal Area Sq. mm 55 100 139 150
5 Unit Weight Kg/Km 429.6 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum 0.2% Proof Load kN 89.8 164 228 246
10 Breaking Load (Minimum) kN 102 186 259 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
13 Relaxation % (Under Load -70% of Specified Breaking Load.)
(a) For 100 Hours % Relaxation losses should not more than 1.8
(b) For 1000 Hours % Relaxation losses should not more than 2.5

Technical Data Sheet (European Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (British Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (American Specification)

Sr.No. Descriptions UOM Specified Values
9.53 mm 12.70 mm 15.20 mm 15.70 mm
1 Grade – 270 [1860] 270 [1860] 270 [1860] 270 [1860]
2 Nominal Diameter mm 9.53 12.70 15.20 15.70
3 Diameter Tolerance mm +0.65/-0.15 +0.65/-0.15 +0.65/-0.15 +0.65/-0.15
4 Nominal Area Sq. mm 55.00 98.70 140 150
5 Unit Weight Kg/Km 430 780 1100 1200
6 Weight Tolerance - General Tolerance will be Applicable based on Specified Diameter Tolerance Given
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum Load at 1.0% Extension kN 92.1 165.3 234.6 251.0
10 Breaking Load (Minimum) kN 102 184 261 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Maximum Relaxation - 1000 Hrs (for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

LRPC / HT Strands

Technical Data Sheet (Indian Specification)

Sr.No. Descriptions UOM Specified Values
9.60 mm 12.90 mm 15.20 mm 15.70 mm
1 Strand Designation - 9.60-1860-P 12.90-1860-P 15.20-1860-P 15.70-1860-P
2 Nominal Diameter mm 9.60 12.90 15.20 15.70
3 Diameter Toerance - General Tolerance will be Applicable based on Specified Weight Tolerance
4 Nominal Area Sq. mm 55 100 139 150
5 Unit Weight Kg/Km 429.6 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum 0.2% Proof Load kN 89.8 164 228 246
10 Breaking Load (Minimum) kN 102 186 259 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
13 Relaxation % (Under Load -70% of Specified Breaking Load.)
(a) For 100 Hours % Relaxation losses should not more than 1.8
(b) For 1000 Hours % Relaxation losses should not more than 2.5

Technical Data Sheet (European Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (British Specification)

Sr.No. Descriptions UOM Specified Values
9.30 mm 12.90 mm 15.20 mm 15.70 mm
1 Steel Designation – Y1860S7 Y1860S7 Y1860S7 Y1860S7
2 Nominal Diameter mm 9.30 12.90 15.20 15.70
3 Diameter Tolerance – General Tolerance will be Applicable based on Specified Weight Tolerance Given
4 Nominal Area Sq. mm 52 100 139 150
5 Unit Weight Kg/Km 406.1 781 1086 1172
6 Weight Tolerance % ±2 ±2 ±2 ±2
7 Lay Length Times of Nominal Diameter of Strand 14 to 18 14 to 18 14 to 18 14 to 18
8 Lay Direction RH or LH RH RH RH RH
9 Proof force (Min. Value of 0.1%) kN 85.1 164 228 246
10 Breaking Load kN 96.7 to 111 186 to 214 259 to 298 279 to 321
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Relaxation - 1000 Hrs (Maximum for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) % 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Technical Data Sheet (American Specification)

Sr.No. Descriptions UOM Specified Values
9.53 mm 12.70 mm 15.20 mm 15.70 mm
1 Grade – 270 [1860] 270 [1860] 270 [1860] 270 [1860]
2 Nominal Diameter mm 9.53 12.70 15.20 15.70
3 Diameter Tolerance mm +0.65/-0.15 +0.65/-0.15 +0.65/-0.15 +0.65/-0.15
4 Nominal Area Sq. mm 55.00 98.70 140 150
5 Unit Weight Kg/Km 430 780 1100 1200
6 Weight Tolerance - General Tolerance will be Applicable based on Specified Diameter Tolerance Given
7 Lay Length Times of Nominal Diameter of Strand 12 to 16 12 to 16 12 to 16 12 to 16
8 Lay Direction RH or LH RH RH RH RH
9 Minimum Load at 1.0% Extension kN 92.1 165.3 234.6 251.0
10 Breaking Load (Minimum) kN 102 184 261 279
11 Elongation Minimum % 3.5 3.5 3.5 3.5
12 Maximum Relaxation - 1000 Hrs (for 70 % Initial Load) % 2.5 2.5 2.5 2.5
13 Modulus of Elasticity Gpa or kN/Sq mm May be Taken as 195
14 Chemical Composition
(a) Sulphur (max) 0.04 0.04 0.04 0.04
(b) Phosphorus (max) % 0.04 0.04 0.04 0.04

Why You Should Trust Kataria Industries Ltd. LRPC?

Why You Should Trust Kataria Industries Ltd. LRPC?
Why You Should Trust Kataria Industries Ltd. LRPC?
Why You Should Trust Kataria Industries Ltd. LRPC?
Why You Should Trust Kataria Industries Ltd. LRPC?
Why You Should Trust Kataria Industries Ltd. LRPC?
Why You Should Trust Kataria Industries Ltd. LRPC?
  • Why You Should Trust Kataria Industries Ltd. LRPC?
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    We employ a cutting-edge, globally recognized "stabilizing process" to treat these strands, representing the forefront of LRPC Strand production.

  • Why You Should Trust Kataria Industries Ltd. LRPC?
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    We craft these nearly straight strands through a thermo-mechanical process, obviating the necessity for any subsequent post-straightening procedures.

  • Why You Should Trust Kataria Industries Ltd. LRPC?
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    We subject these top-quality, dependable strands to online pre-testing at every stage of the manufacturing process to ensure superior quality.

  • Why You Should Trust Kataria Industries Ltd. LRPC?
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    We maintain consistent physical properties and uphold stringent quality parameters.

  • Why You Should Trust Kataria Industries Ltd. LRPC?
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    We source a specific grade of wire rods directly from primary producers to achieve the desired quality standards.

  • Why You Should Trust Kataria Industries Ltd. LRPC?
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    Our strategically located manufacturing facility enables the swift and cost-effective shipping of materials to any destination.

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Coil Packaging

Kataria Industries Ltd. LRPC Strands are available in reel-less (cheese) coils, with weights ranging from 1 MT to 3.9 MT, tailored to meet our customers’ specific needs. These coils are carefully secured to ensure a compact arrangement and are packed and palletized as per the customer’s preferences. Additionally, the beginning end of the strand is clearly marked for easy identification within the coil. These coils can be effortlessly extracted from the center for added convenience.

  • Strapping at Eight places over bare coils.
  • Wrapping of Three Layer Using VPI Paper / Polythene Sheet.
  • Strapping at Six places post Polythene Wrapping.
  • Coil Supported with Wooden Blocks or Pallets.
  • Fixing of Identification Plate.
Oiled Condition
Oiled Condition
Dry Condition
Dry Condition
Packed Coil
Packed Coil

Approved by

National Highway authority of India(NHAI)
Various Metro Corporation State Road Development Authorities

Tested and passed by 3rd Party Test Laboratories

Indian Institute of Technology (IIT) – Chennai
Anulab – Agra

Infrastructure Customers

Our Esteemed
Crowns

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bajaj electricals
L&T
Gril
Ultracon
Simplex
Tata Projects
Sterlite
godrej
adani
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j kumar logo
navayuga-logo
ncc limited logo
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ongc
hg infra engineering
patel logo
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Major Projects

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