SPHEROIDAL GRAPHITE CAST IRON WITH HIGH

Title:

SPHEROIDAL GRAPHITE CAST IRON WITH HIGH

Document Type and Number:

Japanese Patent JP2636104

Kind Code:

B2

Abstract:

PURPOSE: To provide a spheroidal graphite cast iron excellent in tensile strength and elongation in an as-cast state.
CONSTITUTION: The spheroidal graphite cast iron has a chemical composition where 2.6-3.3%, by weight, C, 3.7-4.5% Si, 0.2-0.7% Mn, ≤0.06% P, ≤0.01% S, and 0.03-0.06% Mg are contained as essential components and 0.07-0.15% Cr, 0.2-0.5% Cu, or 0.2-0.5% (Cr+Cu) (where Cr is ≤0.13%) is added to the above components and the balance consists essentially of Fe. Further, this spheroidal graphite cast iron combines high strength with high toughness and has ≥60kg/mm2 tensile strength and ≥10% elongation in the as-cast state.

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Inventors:

UGATA TAKESHI
OGINO YOSHIMICHI

Application Number:

JP28887791A

Publication Date:

July 30, 1997

Filing Date:

November 05, 1991

Export Citation:

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Assignee:

KUBOTA KK

International Classes:

C22C37/04; (IPC1-7): C22C37/04

Domestic Patent References:

JP59193242A

Attorney, Agent or Firm:

Toshio Yasuda

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