Walzdraht und Bolzen zur Befestigung eines Windturms und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4800141

Anmeldetag

13. November 2024

Veröffentlichung

19. Juni 2025

Rechtsraum

EP

Abstract

A wire rod for fastening a wind tower according to an embodiment of the present disclosure includes, in percent by weight (wt%), 0.20 to 0.40% of carbon (C), 0.10 to 0.40% of silicon (Si), 0.30 to 0.50% of manganese (Mn), 1.00 to 1.50% of chromium (Cr), 0.01 to 0.10% of titanium (Ti), 0.0005 to 0.0100% of boron (B), and the remainder of iron (Fe) and other inevitable impurities, wherein a microstructure after hot rolling comprises, by area fraction, 30 to 60% of pearlite and 40 to 70% of ferrite, and satisfies Formula (1) below: 7.50≤12.1xC+1.5xMn+3.1xCr≤8.50 (wherein [C], [Mn], and [Cr] represent percent by weight (wt%) of each element).

Anmelder

Firma

POSCO Co., Ltd

Land

🇰🇷 Südkorea