Global Patent Index - EP 3050983 A1

EP 3050983 A1 20160803 - BRASS HAVING IMPROVED CASTABILITY AND CORROSION RESISTANCE

Title (en)

BRASS HAVING IMPROVED CASTABILITY AND CORROSION RESISTANCE

Title (de)

MESSING MIT VERBESSERTER GIESSBARKEIT UND KORROSIONSBESTÄNDIGKEIT

Title (fr)

LAITON AYANT UNE COULABILITÉ AMÉLIORÉE ET UNE RÉSISTANCE À LA CORROSION

Publication

EP 3050983 A1 20160803 (EN)

Application

EP 16152304 A 20160121

Priority

  • JP 2015014370 A 20150128
  • JP 2015239068 A 20151208

Abstract (en)

Disclosed is a brass having reduced amounts of lead and nickel or not containing them, and having improved castability and corrosion resistance. The brass, comprising Sn in the range of 0.05% to 0.2% by mass, at least one or more elements selected from the group consisting of Sb, As, and P with total amount thereof in the range of 0.05% to 0.32% by mass, Al in the range of 0.1 % to 0.5% by mass, Zn in the range of 33.0% to 40.0% by mass, at least one or more elements selected from the group consisting of Pb and Bi with total amount thereof in the range of 0.005% to 0.25% by mass, Ni in the range of 0.5% or less by mass, Si in the range of 0.5% or less by mass, at least one or more elements selected from the group consisting of Fe and B with total amount thereof in the range of 0.0001% to 0.3% by mass, and the balance substantially consisting of Cu and unavoidable impurities, and also an apparent content of Zn in the range of 36% to 41 %, is excellent in castability and corrosion resistance.

IPC 8 full level

C22C 9/04 (2006.01); C22F 1/08 (2006.01)

CPC (source: EP US)

B22D 21/005 (2013.01 - US); C22C 1/02 (2013.01 - EP US); C22C 9/04 (2013.01 - EP US); C22F 1/08 (2013.01 - EP US); E03C 1/02 (2013.01 - US)

Citation (applicant)

JP H0833783 A 19960206 - NHK SPRING CO LTD

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3050983 A1 20160803; EP 3050983 B1 20190313; US 2016215366 A1 20160728

DOCDB simple family (application)

EP 16152304 A 20160121; US 201615005325 A 20160125