High Tensile Low Relaxation 7 Wire Steel Cable for Post Tensioning

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: 9.3, 9.5, 11.1, 12.7, 15.2, 15.7, 17.8, 18.9, 21.6
• Steel Grade: Swrh77b, Swrh82b
• BS5896-1980: 9.3mm, 12.5mm, 12.9mm, 15.7mm
• ASTM A416-06: 5/16"-7.9mm, 3/8"-9.53mm, 0.5"-12.7mm, 0.6"-15.24m
• Color of HDPE Coating: Blue, Black
• Lubricated Grease Mass: 32G/M-53G/M
• Thickness of HDPE Coating: 1.0mm Min
• Tensile Strength of HDPE Coating: 30MPa Min
• Yield Strength of HDPE Coating: 10MPa Min
• Breakage Elongation of HDPE Coating: 600% Min
• Friction Factor of Strand and Coating: 0.04u~0.1u
• Type 1: Epoxy Coated 7 Single Wire
• Type 2: Whole-Filled Type
• Epoxy Coating: Ethoxyline Resin
• Zinc Coating: Hot Dipped Galvanized
• PE Coating: HDPE Coated
• Transport Package: Export Packing
• Specification: 12.70mm, 15.24mm
• Trademark: DaQiang
• Origin: Tianjin, China
• HS Code: 73121000
• Production Capacity: 1000 Ton/Month

Product Description

PC STEEL STRAND / LRPC STRAND / PT CABLE / POST-TENSIONED STEEL CABLE
HIGH TENSILE LOW RELAXATION STEEL STRAND FOR PRESTRESSED CONCRETE 

Specification:
Raw Material: High carbon steel wire rod SWRH 77B SWRH 82B
Structure: 7 wires, Nominal Diameter: 9.30, 9.53, 11.11, 12.50, 12.70, 12.90, 15.24, 15.70, 17.80, 18.90, 21.60mm; 
Structure: 19 wires, Nominal Diameter: 21.8mm, 28.6mm
Standards: ASTM A416-2017, ASTM A779-2016, ASTM A886-2017, ASTM A910-2016, ASTM A475-03 (2014), AASHTO M 203-2007, ABNT NBR 7483-2020, AS 1311-1987, AS/NZS 4672.1-2017, BS5896-2012, EN10138-3-2009, GB/T5224-2014, IS6006-2014, JISG3536-2014, KSD7002-2019, UNE36094-1997, NEN3868-2001, SNI 1154-2011 
Categories: smooth plain, hot dipped galvanized, HDPE coated, epoxy resin coated. 
Tensile Strength: 1770-1860-1960MPa, Yield Strength 1570-1670-1770MPa
Relaxation: Initial load to 70% breaking load, the relaxation at 1000 hours less than 2.5% 
Elongation: Lo over 610mm, the elongation over 4.0%
Packing Method: baling strip, inner PVC film, outer damp-proof paper-plastic compound packing cloth, wood pallet. 
Package Roll Weight: 2-3 MT / 3-4 MT  

Usages:
Pre-stressing steels apply to post-tensioned and pre-tensioned concrete structure in the follow civil engineering, building construction and infrastructure projects: bridges; railway sleeper, subway track board; airport; industrial buildings, commercial buildings, residential housing foundations; PC poles, piles, beams, girders, slabs, double-T board, hollow floor board, floor, parking decks, PHC, PPCP; electric power, nuclear power station; ports, dams, water project, sewage treatment, swimming pool; rock-coil anchoring, side slope stabilization, coil mine; storage tank for national gas, oil, grain; stadiums, TV tower etc.

History:
With excellent quality, reasonable price and good after-sales service, Daqiang Brand has been China Top Ten PC Strand Brand for 6 years. Daqiang products had been used in many national key projects in China and exported to many countries, such as Australia, Bahrain, Bangladesh, Brazil, Chile, Colombia, Dominica, Ecuador, Egypt, India, Iran, Kenya, Lebanon, Malaysia, Panama, Qatar, South Korea, Sri Lanka, Thailand, Venezuela, Viet Nam etc. 

Trade Terms: 
Min Order Qty: 1 FCL / 27 M.Tons  
Price Terms: EXW FOB FCA CFR CIF 
Payment Terms: Cash, TT, LC, DP 
Date of Shipment: 10-20 days
 

Standard

Structure

Grade

Nominal Dia.

Tolerance

Cross Section Area

Mass Per 1km

Breaking Loading

Load at 1% Extension

Elangation at Max Load

The relaxation at 1000h (r%)

(in)

(mm)

(mm)

(Sn/mm²)

(Kg/1000m)

≥(KN)

≥(KN)

Lo≥500mm (%)

Low-Relaxation

Normal-Relaxation

ASTM A416

1x7

270[1860]

3/8

9.50

+0.65                 -0.15

54.84

432

102.3

92.1

3.5

2.5

3.5

 

Standard	Type	Dia.	Tolerance	Section Area	Mass	Tensile Strength	Breaking Loading	Min. Load at 1% Extenstion	Elongation	1000h Relaxation
		(mm)	(mm)	(mm2)	(g/m)	(Mpa)	Min. (KN)	Min (KN)	Min (%)	Max (%)
BS5896 -1980	Standard 7 Wire	9.3	+0.3,    -0.15	52	408	1770	92	81	3.5	2.5%
		11.0		71	557	1770	125	110
		12.5	+0.4,     -0.2	93	730	1770	164	144
		15.2		139	1090	1670	232	204
	Super 7 Wire	9.6	+0.3,     -0.15	55	432	1860	102	90
		11.3		75	590	1860	139	122
		12.9	+0.4,     -0.2	100	785	1860	186	163
		15.7		150	1180	1770	265	233

Application: Railway sleeper, subway track board; Post-tensioned concrete beams, girders, slabs of bridges, concrete floor, underground park, of industrial buildings, commercial buildings; Water projects, rock-coil anchoring, slope protection, coal mine; Long span stadiums, station.

Technical Specifications of Lubricated and PE Coated PC Strand (Unbonded Strand)
Diameter (mm)	Tensile Strength (Mpa)	Section Area (mm2)	Grease Mass (g/m)	Coating Thickness Min (mm)	Friction Factor	Effect     Modulus	Mass (g/m)	The Properties of HDPE Coating
								Tensile Strength Min (Mpa)	Yield Strength Min (Mpa)	Elongation Min (%)
9.53	1860	54.8	32	0.8	0.04-0.1	0.003-0.004	488	30	10	600
12.70	1860	98.7	43	1.0	0.04-0.1	0.003-0.004	875	30	10	600
15.24	1860	140	50	1.0	0.04-0.1	0.003-0.004	1210	30	10	600
15.70	1860	150	53	1.0	0.04-0.1	0.003-0.004	1300	30	10	600