PRESTRESSED CONCRETE STEEL WIRE (PC WIRE)

Prestressed Concrete Steel Wire (PC Wire), identified by UN CPC code 41267 - wire of alloy steel is manufactured by The Siam Industrial Wire Co., Ltd., Thailand. This product meets the international standards of: TIS 95 – 1997, AS/NZS 4672 – 2007, BS 5896 – 2012, LNEC E452 – 2011, XP-A35-045-2 – 2017, MS 1138 - 2 – 2007, UNE 36094 – 1997, UNI 7675 – 2016, NBN I 10-002 – 1987 and Nr IBDiM-KOT – 2019. PC Wire is made of cold-drawn high carbon wire rods processed in a suitable metallurgical condition for cold working, which are given a final thermo-mechanical treatment. The wire is subjected to take annealing, rapidly cooled to produce a martensitic structure, and then tempered at a suitable temperature. The heat annealing process is carried out using a continuous in-line process. The surface of the wire may be covered with a thin film of scale. This process is followed by a pinch wheel, a hydraulic shear, and basket coilers that take up the wire nonstop. This line can be fed directly from a wire drawing machine. PC Wire is typically used in pre-stressed concrete piles and pipes, electric poles, railway sleepers, concrete panels for pre-cast segments, hollow-core slabs, as well as ground and rock anchors.

Conforming with EN 15804:2012+A2:2019 and PCR 2019:14 v1.11 Construction Products, the EPD for PC Wire covers Cradle to gate (A1-A3) with options (A4: transport to customer), plus modules C1–C4 and module D.). Additional impact category results are also presented to support comparability across EPDs based on other PCRs aligned with version 3.01 of the GPI and comparability across EPDs conforming to EN 15804:2012+A1:2013.

The declared unit is one tonne (1 t) of PC Wire product.