Walzdraht, Bolzen und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4800142

Anmeldetag

13. November 2024

Veröffentlichung

19. Juni 2025

Rechtsraum

EP

Abstract

A wire rod according to an embodiment of the present disclosure includes, in percent by weight (wt%), 0.20 to 0.35% of carbon (C), 0.05 to 0.50% of silicon (Si), 0.30 to 0.60% of manganese (Mn), 1.00 to 1.60% of chromium (Cr), 0.02 to 0.10% of aluminum (Al), 0.02 to 0.05% of titanium (Ti), and 0.0005 to 0.0100% of boron (B), the remainder of iron (Fe) and inevitable impurities, satisfies Formula (1) below, and includes 30% to 60% of pearlite and 40% to 70% of ferrite in an area fraction as a microstructure after hot rolling. 5.9 ≤ 9.2 x C + 1.2 x 0.9 x Mn + 2.1 x Cr ≤ 6.3 <img class="EMIRef" id="99439e33-2daa-42b9-abc4-8c7829880479-ia01" /> (Where, [C], [Mn], and [Cr] refer to the weight percent of each element).

Anmelder

Firma

POSCO Co., Ltd

Land

🇰🇷 Südkorea