EP 1339890 A1 20030903 - CYLINDRICAL TUBE FOR INDUSTRIAL CHEMICAL INSTALLATIONS
Title (en)
CYLINDRICAL TUBE FOR INDUSTRIAL CHEMICAL INSTALLATIONS
Title (de)
ZYLINDRISCHES ROHR FÜR TECHNISCHE CHEMISCHE INSTALLATIONEN
Title (fr)
TUBE CYLINDRIQUE DESTINE A DES INSTALLATIONS INDUSTRIELLES CHIMIQUES
Publication
Application
Priority
- SE 0102602 W 20011123
- SE 0004336 A 20001124
Abstract (en)
[origin: WO0242510A1] The invention provides a tube for use in furnaces where gas and liquid media are being passed through the tube from one end to the other while being subjected to substantial heating and decomposition resulting therefrom. The cylindrical tube is made of a stainless iron-nickel-chromium-base alloy comprising in weight-% max 0.08 % C, 23-27 % Cr, 33-37 % Ni, 1.3-1.8 % Mn, 1.2-2 % Si, 0.08-0.25 % N, 0.01-0.15 % rare earth metals, and Fe and usual impurities. The cylindrical tube has a smooth outer surface and an inner surface provided with valleys or recesses extending longitudinally with a smoothly curved bottom profile.
IPC 1-7
IPC 8 full level
C22C 30/00 (2006.01); C22C 38/00 (2006.01); C22C 38/58 (2006.01); F16L 9/00 (2006.01); B21B 3/02 (2006.01); B21B 21/00 (2006.01)
CPC (source: EP KR US)
C22C 30/00 (2013.01 - EP US); C22C 38/005 (2013.01 - EP US); C22C 38/58 (2013.01 - EP KR US); F16L 9/006 (2013.01 - EP US); B21B 3/02 (2013.01 - EP US); B21B 21/00 (2013.01 - EP US)
Citation (search report)
See references of WO 0242510A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0242510 A1 20020530; WO 0242510 A8 20020704; BR 0115397 A 20040706; CA 2426882 A1 20020530; EA 004604 B1 20040624; EA 200300603 A1 20031030; EP 1339890 A1 20030903; JP 2004514788 A 20040520; KR 20030051833 A 20030625; NO 20032334 D0 20030523; NO 20032334 L 20030523; SE 0004336 D0 20001124; SE 0004336 L 20020525; US 2002096318 A1 20020725
DOCDB simple family (application)
SE 0102602 W 20011123; BR 0115397 A 20011123; CA 2426882 A 20011123; EA 200300603 A 20011123; EP 01997570 A 20011123; JP 2002545210 A 20011123; KR 20037006638 A 20030515; NO 20032334 A 20030523; SE 0004336 A 20001124; US 99170301 A 20011126