Type
Basic, Cr and Mo-alloyed electrode for heat resistant steels T/P91 and T/P92
classification
AWS
A 5.5: E 9018-B91
EN ISO
3580-A: E CrMo91 B42 H5
Applications

CEWELD E 9018-B9 is intended for the welding of equivalent T/P91 type CrMo steels modified with minor additions of niobium and vanadium to obtain improved creep rupture properties. These welding consumables are specifically designed for use in high strength structures at elevated temperatures so that the low alloy additions responsible for creep rupture strength are kept above the minimum required for satisfactory performance.
Suitable for: Headers, main steam pipes and turbine casings in fossil fuel power stations. Oil refineries, coal liquefaction and gasification plants. Preheat and interpass temperature 200°C - 300°C.

Type
Basic, Cr and Mo-alloyed electrode for heat resistant steels T/P91 and T/P92
Applications

CEWELD E 9018-B9 is intended for the welding of equivalent T/P91 type CrMo steels modified with minor additions of niobium and vanadium to obtain improved creep rupture properties. These welding consumables are specifically designed for use in high strength structures at elevated temperatures so that the low alloy additions responsible for creep rupture strength are kept above the minimum required for satisfactory performance.
Suitable for: Headers, main steam pipes and turbine casings in fossil fuel power stations. Oil refineries, coal liquefaction and gasification plants. Preheat and interpass temperature 200°C - 300°C.

Properties

CEWELD E 9018-B9 is modified with minor additions of niobium and vanadium to achieve improved creep rupture properties. It is specifically designed for use in high strength structures at elevated temperatures so that the low alloy additions responsible for creep rupture strength can meet the strength requirements. In this case the welds are weakest in the area of the softened (intercritical) HAZ of the base material.

Classification
AWS
A 5.5: E 9018-B91
EN ISO
3580-A: E CrMo91 B42 H5
F-nr
4
FM
4
Suitable for

9%Cr, 1%Mo, VNb

1.7389, 1.7386, 1.4922, 1.4935, 1.4904, 1.4903, 1.4955, 

X11CrMo9-1, X12CrMo9.1, X20CrMoV10-1, X10CrMoVNb9-1, GX12CrMoVNbN9-1

ASTM Grade 91, T91, P91, F91, FP91, WP91,C12A

STPA28, STBA28 

Approvals
CE
Welding positions
PA
PB
PC
PD
PE
PF
Redrying
400°C / 1 hr
Analysis
C Si Mn P S Cr Ni Mo V Cu Nb N Al
0.09 0.3 0.9 0.01 0.01 9 0.6 0.9 0.2 0.06 0.04
Mechanical Properties
Heat
Treatment
RP0,2
(MPa)
Rm
(MPa)
A5
(%)
Impact Energy (J) ISO-V Hardness
RT
As Welded 550 700 21 55 HRc