890 Zylinderrohr in Mpa-Qualität und Herstellungsverfahren dafür

Details

Veröffentlichungs-Nr.

EP4768616

Anmeldetag

28. August 2024

Veröffentlichung

6. März 2025

Rechtsraum

EP

IPC

C22C38/00, C21D8/10

Abstract

The present disclosure provides a cylinder tube, comprising, in addition to Fe and inevitable impurities, the following chemical elements in percentage by mass: C: 0.14-0.20%; Si: 0.15-0.55%; Mn: 0.5-1.5%; Cr: 0.5-1.5%; Mo: 0.25-0.65%; W: 0.3-0.8%; V: 0.05-0.1%; Nb: 0.02-0.06%; Al: 0.01-0.05%; Ca: 0.0005-0.005%. The present disclosure further provides a method for manufacturing the aforementioned cylinder tube. Through a rational design of chemical composition and, preferably, in combination with specific processes, the cylinder tube exhibits high strength, and possesses low residual stress and a low yield ratio, while exhibiting good weldability.

Anmelder

Firma

BAOSHAN IRON & STEEL CO., LTD.

Land

🇨🇳 China

Fachgebiete