Pre-stressed Steel Bars

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Jiangyin Walsin Steel Cable Co., Ltd

No.679, Binjiang west road Jiangyin City, Jiangsu

0086-510-86402144

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Pre-stressed Steel Bars


company	Jiangyin Walsin Steel Cable Co., Ltd
Categories	Stainless Steel Bars
Update	2011-03-17
Original Region	China
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Pre-stressed Steel Bars

Pre-stressed steel bars actually refer to steel bars used for pre-stressed concrete. They are also called as pile steel wires or P.C. steel bars. They are mainly used as the reinforcing wires of pre-stressed high-strength concrete (PHC) piles. P.C. steel bars were developed successfully in 1964 by Japan’s Nihon Koshuha Co., Ltd. At first people called them as UL Bond for their supper bonding force. In China, we transliterated their name as Wu Long Bang”.

PHC Pile Steel Bars

The steel bars produced by our company for pre-stressed concrete are characteristic of high-strength, low-relaxation, weldability and platability and they are widely used for PHC piles as their ideal main reinforcing materials. The steel bar is one of our main products. Our annual productivity of steel bars is 20,000 tons, covering products with various specifications (F7.

1—F12.6). The product strength is able to exceed 1420 MPa and the relaxation performance can reach the 2nd grade. Our products meets all requirements in YB/T 111-1997, Steel Bars for Pre-stressed Concrete” promulgated by the Ministry of Metallurgical Industry.

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Raw Materials: Medium-carbon and low-alloy steel, 30 MnSi
Processing: Single-pass drawing, stabilizing treatment
Features: High tensile strength, low relaxation, good upsetting performance and spot welding performance, good bond force to concrete
Standard: YB/T 111-1997, Steel Bars for Pre-stressed Concrete”
Application: Used for pipe pile steel wires for high-rising building foundation concrete, bridge pier concrete and port concrete and also used for the beams of fly-over bridges.

Mechanical Performance of Anisotropic Steel Bars

Types Code Name	Proof Stress of Non-proportion Elongation, Mpa Not less than	ensile Strength, Mpa Not less than	%Elongation Not less than	%Relaxation%Not less than
SBPDN930/1080	930	1080	5	4.0
SBPDL930/1080				2.5
SBPDN1080/1230	1080	1230	5	4.0
SBPDL1080/1230				2.5
SBPDN1275/1420	1275	1420	5	4.0
SBPDL1275/1420				2.5

Dimension, Nominal Section Area and Theoretical Weight of Anisotropic Steel Bars

Nominal Diameter	Basic Diameter	Nominal Sectional Area	kg/mTheoretical Weight, kg/m
7.1	7.25	40.0	0.314
9.0	9.15	64.0	0.502
10.7	11.10	90.0	0.706
12.6	13.10	125	0.981
Note: the nominal diameter of anisotropic steel bars is equal to that of round steel bars with the same cross section area.