EP 0308361 B1 19931013 - PROCESS FOR MANUFACTURING STEEL PRESSURE VESSELS
Title (en)
PROCESS FOR MANUFACTURING STEEL PRESSURE VESSELS
Publication
Application
Priority
DE 3731481 A 19870916
Abstract (en)
[origin: EP0308361A1] To simplify the manufacture of pressure vessels and to enhance the properties thereof, a steel is proposed which has a composition of 0.15 - 0.26% of carbon 1.25 - 2.00% of manganese 0.2 - 0.5% of silicon at most 0.02% of phosphorus at most 0.005% of sulphur 0.1 - 0.5% of molybdenum 0.010 - 0.035% of titanium 0.0030 - 0.0100% of N 0.001 - 0.003% of boron 0 - 0.04% of niobium, the remainder being iron and usual impurities, the titanium content/nitrogen content ratio being adjusted to between 3.6 and 6.5. The invention also relates to a heat treatment process for the vessels manufactured from this steel.
IPC 1-7
IPC 8 full level
C21D 1/18 (2006.01); C21D 9/00 (2006.01); C22C 38/04 (2006.01)
CPC (source: EP)
C21D 1/18 (2013.01); C21D 9/0068 (2013.01); C22C 38/04 (2013.01)
Designated contracting state (EPC)
AT BE DE ES FR GB IT
DOCDB simple family (publication)
EP 0308361 A1 19890322; EP 0308361 B1 19931013; AT E95844 T1 19931015; DE 3731481 A1 19890406; DE 3884900 D1 19931118
DOCDB simple family (application)
EP 88730190 A 19880823; AT 88730190 T 19880823; DE 3731481 A 19870916; DE 3884900 T 19880823