12.5mm Swrh77b/Swrh82b Prestressed Concrete 7-Wire Strand

The prestressed steel strand is one of the most important products in our enterprise, which is used to match the highend structurd of concrete such as railways, highways, bridges, mine, nuclear power plant, hydropower, large-span buildings and so on.

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We persistently pursue better quality, and use our unremitting efforts to become a reliable Construction structural S235JR mild steel, Hollow reinforced concrete spun pile machine, HOT ROLLED STAINLESS STEEL COIL partner for customers! We attach great importance to quality management, abide by the promise of integrity, product quality and safety performance with a reliable quality assurance system. We promise to create a good working environment and a broad space for development for our employees and promote their common progress with the company. The company pays close attention to quality, seeks credibility, seeks development, and improves the popularity of the enterprise. Relying on the advantages of a strong shareholder background and a team of professionals, the company is committed to providing customers with high-quality products and services.

Product Introduction

High Strength Prestressed Steel Strand is one of the most important products in our enterprise. It has a wide range of uses, not only in the construction of high-end concrete structures such as railways, highways, bridges, nuclear power plants and large-span buildings, but also in industries such as storage rack manufacturing, lifting machinery manufacturing, and wind power equipment manufacturing.

Features

High Strength Prestressed Steel Strand has a unique manufacturing process, using cold-rolled and hot-drawn production technology to complete the fusion between metals. Due to high-quality materials and high-tech processing, it will not appear disjointed, peeled, and cracked. Moreover, it has a thick surface metal layer, strong corrosion resistance and long service life. Its connection process is safe and reliable, the joint is firm and the stability is good. It has strong functionality, and the surface metal has good electrical conductivity.

High strength prestressed steel strand

Standard: GB/T5224, ASTM416, BS5896, JIS G3536, UNE 36094, KS D, AS/NZS4672

Structure And Size: 1×7wires - 9.5/11.1/12.7/15.2/15.7/17.8/21.6 mm

Good performance characteristic:

High Tensile Strength And Elongation;

Low Relaxation Value;

Small Stress Losing;

Excellent Durable Anti-Fatigue Performance

GB/T5224-2014

Grade	Nominal DIA of Strand	Tolerance	Steel Area of Strand	Weight of Strand	MIN Breaking Strength of Strand	MIN Load at 0.2% Extension	Elongation L0≧500mm	Relaxation Properties
Grade	mm	mm	m㎡	kg/1000m	kN	kN	%	70% Initial Actual Load	80% Initial Actual Load
1860	9.53	0.5 0.15	54.8	430	102	89.8	≧3.5	≦2.5	≦4.5
	12.7	0.4 0.15	98.7	775	184	162
	15.2		140	1101	260	229
	15.7		150	1178	279	246

ASTM A416/A416M

Grade	Nominal DIA of Strand	Tolerance	Steel Area of Strand	Weight of Strand	MIN Breaking Strength of Strand	MIN Load at 1% Extension	Elongation L0≧600mm	Relaxation Properties
Grade	mm	mm	m㎡	kg/1000m	kN	kN	%	70% Initial Specified Load	80% Initial Specified Load
270	9.53	0.65 0.15	54.8	432	102.3	92.1	≧3.5	≦2.5	≦3.5
	12.7		98.7	775	183.7	165.3
	15.2		140	1102	260.7	234.6

BS5896: 2012

Grade	Nominal DIA of Strand	Steel Area of Strand	Weight of Strand	Characteristic value of MAX force	MAX value of MAX force	Characteristic value of 0.1% proof force	Total MIN percentage Elongation at MAX force with L0≧500mm	Relaxation Properties
Grade	mm	m㎡	kg/1000m	kN	kN	kN	%	70% initial force	80% initial force
270	9.6	55	429.6	102	117	89.8	≧3.5	≦2.5	≦4.5
	12.5	93	726.3	173	199	152
	12.7	112	874.7	208	239	183
	12.9	100	781	186	214	164
	15.2	139	1086	259	298	228
	15.7	150	1172	279	321	246

We can also produce the pc strand according to AS/NZS 4672:2007, IS 14268-2017 and prEN 10138-3:2009

Production Process And Work Shop

Process as below:

Raw Materials（tested wire rod）→ Surface Treatment → First Drawing → Strand(9 times drawing) → Stabilizing Treatment → Rust-Proof And Coiling → Packing

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The company has always survived by quality, based on cultivating core competitiveness, and has become an excellent enterprise in the 12.5mm Swrh77b/Swrh82b Prestressed Concrete 7-Wire Strand industry. We have gradually extended our industry into many fields and have achieved a development route with our own characteristics in all related fields. The company can meet the needs of customers with sufficient supply and preferential prices according to the different needs of different customers and different ordering plans.

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