Houskapreis - Erfolgsstory
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CB2-Story<br />
COST 536<br />
Houska-Preis<br />
Konzernprojekt KW50+<br />
voestalpine Giesserei Linz GmbH<br />
www.voestalpine.com/giesserei
voestalpine Giesserei Linz – material<br />
development<br />
creep resistance<br />
(10 5 h) [MPa]<br />
COST 536<br />
COST 501<br />
GX13CrMoCoVNbNB10-1-1 (CB2)<br />
GX12CrMoWVNbN10-1-1 (E911)<br />
GX12CrMoVNbN9-1 (C91) COST501/COST 522<br />
voestalpine R&D-project<br />
CrCoMo(W)VNbNB<br />
GX8CrWCoVNbNB9-3-3 (MARBN)<br />
EN 10213-2<br />
200<br />
GX23CrMoV12-1<br />
100<br />
0<br />
500<br />
EN 10213-2<br />
G17CrMoV5-10<br />
voestalpine Giesserei Linz GmbH<br />
2 | |<br />
22.01.2019 Heavy Steel Castings<br />
approx. 30°C approx. 25°C<br />
550 600 650<br />
Nibas<br />
COMET-MCL-Project<br />
ferritic 13-16% Cr-steel<br />
Alloy 625<br />
700
Material development – status<br />
actual market<br />
state of technology<br />
new material development<br />
prozess- and component-development<br />
voestalpine Giesserei Linz GmbH<br />
3 | |<br />
22.01.2019 Heavy Steel Castings
CB2: GX12CrMoCoVNbNB9-2-1<br />
Specified Properties<br />
» Chemical Composition<br />
C Si Mn P S Cr Ni Mo Co V Nb B N<br />
min 0,10 0,20 0,70 9,00 0,10 1,40 0,90 0,18 0,05 0,0080 0,015<br />
max 0,14 0,40 1,00 0,020 0,010 10,00 0,25 1,60 1,10 0,23 0,08 0,0130 0,030<br />
» Heat Treatment » Mechanical Properties<br />
Heat Treatment Temp. [°C] Cooling<br />
Normalizing 1100±20 Forced air<br />
Tempering 720±20 Still Air<br />
Stressrelieving 720±20 Furnace<br />
0.2 Proof Strength Tensile Strength Elongation Red. of Area Impact Charpy-V (20°C)<br />
Rp0.2 [MPa] Rm [MPa] A5 [%] Z [%] Single [J] Mean [J]<br />
min 450 600 15 40 19 27<br />
max 750<br />
voestalpine Giesserei Linz GmbH<br />
4 | |<br />
22.01.2019 Titel der Präsentation
CB2: GX12CrMoCoVNbNB9-2-1<br />
Material Data: as delivered for Creep Rupture Tests<br />
» Chemical Composition<br />
Heat C Si Mn P S Cr Mo Ni Al V Nb Co B N<br />
204253 0,127 0,26 0,85 0,014 0,0050 9,33 1,49 0,15 0,016 0,2 0,062 0,97 0,096 0,019<br />
» Heat Treatment » Mechanical Properties<br />
Heat Treatment<br />
Temp.<br />
[°C]<br />
Hold Time<br />
[h]<br />
Heat Treatment [°C] [h]<br />
Cooling<br />
Normalizing 1100 14 Forced air<br />
Tempering 730 12 Still Air<br />
Stressrelieving 730 12 Furnace<br />
Stressrelieving 730 12 Furnace<br />
Temp.<br />
[°C]<br />
0.2 Proof<br />
[MPa]<br />
Tensile<br />
[MPa]<br />
Elong.<br />
[%]<br />
RA<br />
[%]<br />
Impact<br />
[J]<br />
20 552 706 17,4 54 56-58<br />
550 423 506 15,8 66<br />
600 349 378 21,6 80<br />
625 328 350 28,8 86<br />
650 294 308 23,1 85<br />
voestalpine Giesserei Linz GmbH<br />
5 | |<br />
22.01.2019 Titel der Präsentation
CB2: GX12CrMoCoVNbNB9-2-1<br />
Micro Structure: as delivered for Creep Rupture Tests<br />
voestalpine Giesserei Linz GmbH<br />
6 | |<br />
22.01.2019 Titel der Präsentation<br />
Etching: Aqua Regia
CB2: GX12CrMoCoVNbNB9-2-1<br />
Creep Rupture Data - Status 01/2018<br />
[MPa]<br />
100<br />
VA-600°C<br />
VA-625°C<br />
77.100<br />
74.100<br />
78.000<br />
VA-650°C<br />
VA-600°C running<br />
VA-625°C running<br />
VA-650°C running<br />
10<br />
Log. (VA-600°C)<br />
100 Log. (VA-625°C)<br />
1.000 10.000 100.000<br />
Log. (VA-650°C)<br />
Hours<br />
voestalpine Giesserei Linz GmbH<br />
7 | |<br />
22.01.2019 Heavy Steel Castings
CB2 - Creep Strength of voestalpine Material<br />
LMP - Status 01/2018<br />
100<br />
[MPa]<br />
85 MPa<br />
77.100 h<br />
74.100 h<br />
VA 600°C<br />
VA 625°C<br />
VA 650°C<br />
Log. (COST CB2)<br />
10<br />
13.000 13.500 14.000 14.500 15.000 15.500 16.000<br />
PLM=T(20+lg(t))<br />
100.000h/625°C<br />
78.000 h<br />
voestalpine Giesserei Linz GmbH<br />
8 | |<br />
22.01.2019 Heavy Steel Castings
Experience and reference of CB2:<br />
4.800 tons, 300 castings up to 59 tons per piece<br />
CB2 – casted weight per BJ<br />
1-10 t 10-20 t 20-30 t 30-40 t 40-50 t 50-60 t<br />
1.200<br />
1.000<br />
800<br />
tons<br />
600<br />
400<br />
200<br />
0<br />
2012 2013 2014 2015 2016 2017 2018<br />
BJ<br />
voestalpine Giesserei Linz GmbH<br />
9 | |<br />
22.01.2019 Titel der Präsentation
CB2 had a significant share in total casted weight<br />
in BJ13-BJ18<br />
CB2 – casted weight per BJ<br />
CB2<br />
Rest<br />
tons<br />
100%<br />
90%<br />
80%<br />
70%<br />
60%<br />
50%<br />
40%<br />
30%<br />
20%<br />
10%<br />
0%<br />
2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018<br />
BJ<br />
voestalpine Giesserei Linz GmbH<br />
10 | |<br />
22.01.2019 Titel der Präsentation
GX12CrMoCoVNbNB9-2-1 (CB2)<br />
from research to commercial success<br />
Tons<br />
1.000<br />
900<br />
800<br />
700<br />
600<br />
500<br />
400<br />
300<br />
200<br />
100<br />
0<br />
voestalpine Giesserei Linz GmbH<br />
11 | |<br />
material development<br />
pilot components<br />
COST 501-3/COST522/COST536<br />
1995-2009<br />
2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018<br />
22.01.2019 Heavy Steel Castings<br />
ongoing investigations, creep tests<br />
process development<br />
KW50+<br />
Houska-<br />
Preisverleihung<br />
1-10 t 10-20 t 20-30 t 30-40t 40-50 t 50-60 t<br />
cast components – experience:<br />
~ 300 castings, up to 59 tons, total ~4.800 tons<br />
commercial orders
HP-Outer Casing / Valve Casing (31t + 2x19 t = 69t)<br />
(GX12CrMoWVNbN10-1-1) „Boxberg“<br />
Fab-Weld<br />
Wallthickness: 170 mm<br />
+ Backing Weld: 15 mm<br />
voestalpine Giesserei Linz GmbH<br />
12 | |<br />
22.01.2019 Heavy Steel Castings
HP-Outer Casing / Valve Casing (31t + 2x19 t = 69t)<br />
(GX12CrMoWVNbN10-1-1) „Boxberg“<br />
voestalpine Giesserei Linz GmbH<br />
13 | |<br />
22.01.2019 Heavy Steel Castings
HP-Outer Casing / Valve Casing (31t + 2x19 t = 69t)<br />
(GX12CrMoWVNbN10-1-1) „Boxberg“<br />
voestalpine Giesserei Linz GmbH<br />
14 | |<br />
22.01.2019 Heavy Steel Castings
Heavy Fabrication of Steel Castings<br />
MHI – Danjing Project (GX12CrMoWVNbN10-1-1)<br />
1000 MW USC Steam Turbine<br />
MSV/GV Valve<br />
voestalpine Giesserei Linz GmbH<br />
15 | |<br />
22.01.2019 Heavy Steel Castings
Heavy Fabrication of Steel Castings<br />
MHI – Danjing Project (GX12CrMoWVNbN10-1-1)<br />
1000 MW USC Steam Turbine<br />
MSV/GV Valve<br />
voestalpine Giesserei Linz GmbH<br />
16 | |<br />
22.01.2019 Heavy Steel Castings
200 castings, up to 39 tons, total >2.000 tons<br />
voestalpine Giesserei Linz GmbH<br />
17 | |<br />
22.01.2019 Heavy Steel Castings<br />
CB2 – IP-Inner Casings
Die Story<br />
geht weiter<br />
Group industrial project „MarBN“<br />
VAGL, VABW, Böhler Edelstahl, TU Chemnitz<br />
Project duration of three years until end of FJ 2019<br />
MarBN challenge<br />
1) Reproducibility of (trial) heats for casting VAGL<br />
2) Process parameters of heat treatment TU Chemnitz<br />
3) Development and qualification of optimized<br />
welding consumables<br />
4) Achievement of target window in material properties ALL<br />
RT yield- and tensile strength<br />
Sufficient notch impact energy Av > 24 J<br />
Creep strength at 650°C<br />
VABW<br />
voestalpine Giesserei Linz GmbH<br />
www.voestalpine.com/giesserei
MarBN process parameters in heat treatment<br />
1200<br />
1100<br />
1000<br />
900<br />
800<br />
700<br />
600<br />
500<br />
400<br />
300<br />
200<br />
100<br />
0<br />
0 10<br />
voestalpine Giesserei Linz GmbH<br />
20 30 40 50 60 70<br />
19<br />
22.01.2019<br />
| |<br />
MarBN-Development-Status<br />
Hardening<br />
???<br />
Reinhold Hanus<br />
T. +43/50304/15-4450<br />
reinhold.hanus@voestalpine.com<br />
voestalpine Giesserei Linz GmbH<br />
www.voestalpine.com/giesserei
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