12.7mm/15.2mm High Strength PC Steel Strands

• Customization: Available
• Material: Steel Wire
• Cross Sectional Shape: Round
• Model NO.: 1*7 12.7mm 15.24mm
• Type: Loop Tie Wire
• Surface Treatment: Anti-Rust Oil Paint
• Metal Wire Drawing: Cold Drawing
• Status: Soft State
• Condition: New
• Transport Package: Export Anti-Rust Packing
• Specification: 1x7
• Trademark: xiao niu
• Origin: Tianjin, China
• HS Code: 7312100000
• Production Capacity: 50000 Tons Per Month

Product Description

The PC strand is mainly used as auxiliary reinforcing strand for concrete structure, such as long spanned bridge's on railway and highway, overhead crane construction, geotechnical anchor construction, multi-floor industrial building and etc.

We can manufacture the PC strand conforming to the technical standards, such as GB/T5223-2002, GB/T5224-2003 of China, ASTM A416 of USA, BS5896:80 of Britain, JIS G3536-88 of Japan, or the standards agreed by both the customers and our company.



 

ASTM A416 Standard
Grade		250[1725]				270[1860]
Nominal dia. (mm)		9.53	11.11	12.70	15.24	9.53	11.11	12.70	15.24
Tolerance (mm)		±0.40				+0.65  -0.15
Cross section area (Sn/mm²)		51.61	69.68	92.90	139.35	54.84	74.19	98.71	140.00
Re.mass per 1000m (kg/1000m)		405	548	730	1094	432	582	775	1102
Minimum Breaking load		89.0	120.1	160.1	240.2	102.3	137.9	183.7	260.7
Min Load at 1% Extension (KN)		80.1	108.1	144.1	216.2	92.1	124.1	165.1	234.6
Lo≥610mm (%)		3.5
The relaxation at 1000h (Initial load to 70% of nominal max load) (r/%) Not more than	Low-Relaxation	2.5
	Normal-Relaxation	3.5

 

BS5896 Standard
Strand type		Standard 7-wire				Super 7-wire				Die-drawn 7-wire
Nominal dia. (mm)		9.3	11	12.5	15.2	9.6	11.3	12.9	15.7	12.7	15.2	18
Tolerance (mm)		+0.3 -0.15	+0.3 -0.15	+0.4 -0.2	+0.4 -0.2	+0.3 -0.15	+0.3 -0.15	+0.4 -0.2	+0.4 -0.2	+0.4 -0.2	+0.4 -0.2	+0.4 -0.2
Area of Section (mm²)		52	71	93	139	55	75	100	150	112	165	223
Theoretical Weight per 1000 metre (kg)		408	557	730	1090	432	590	785	1180	890	1295	1750
Tensile Strength		1770	1770	1770	1670	1860	1860	1860	1770	1860	1820	1700
Specified characte-ristic breaking Load		92	125	164	232	102	139	186	265	209	300	380
Specified characte-ristic 0.1% yielding Load		78	106	139	197	87	118	158	225	178	255	323
Load at 1% Elongation Lo ≥500mm		81	110	144	204	90	122	163	233	184	264	334
Minimun Elongation at MAX load		3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5
Relaxation Value 1000h	60% Initial Load	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0	1.0
	70% Initial Load	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5	2.5
	80% Initial Load	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5

 

JIS G3536 Standard
Steel grade	SWPR7A				SWPR7B
Nominal dia. (mm)	9.3	10.8	12.4	15.2	9.5	11.1	12.7	15.2
Area of Section (mm²)	51.61	69.68	92.90	138.70	54.84	74.19	98.71	138.70
Theoretical Weight per 1000 metre (kg)	405	546	729	1101	432	580	774	1101
Breaking Load (≥KN)	88.8	120	160	240	102	138	183	261
Load at 0.2% Permanent elongation (≥KN)	75.5	102	136	204	86.8	118	156	222
Minimum elongation at Max Load≥ (%)	3.5	3.5	3.5	3.5	3.5	3.5	3.5	3.5
Relaxation Value≥ (%)	3	3	3	3	3	3	3	3

 

GB/T 5224 Chinese Standard
Structure	1x2			1x3		1x7
Nominal dia. (mm)	8.00	10.00	12.00	10.80	12.90	9.50	11.10	12.70	15.2	17.8
Tolerance (mm)	+1.25    -0.10			+0.20  -0.10		+0.30  -0.15		+0.40  -0.20
Cross section area (Sn/mm²)	25.1	39.3	56.5	58.9	84.8	54.8	74.2	98.7	140	191
Re.mass per 1000m (kg/1000m)	197	309	444	462	666	430	582	775	1101	1500
Tensile Strength Not less than	1470	1570	1720	1860	1960	1720	1860	1960	1860	1720	1860
Yield Strength Not less than	1320	1410	1550	1670	1760	1550	1670	1760	1670	1550	1670
Elongation at max load Not less thah						3.5
The relaxation at 1000h (Initial load to 70% of nominal tensile strength)(r/%) not less than						2.5