Boiler

Coal-fired steam boiler

For reduce CO2 emission higher generation efficiency of thermal power plant are required, therefore welding of boiler have to endure high temperature and pressure steam to the turbine. Kobe Steel keep on providing sophisticated welding technology and products to meet stringent specification, such as ferritic high chromium heat-resistant steel and stainless steel.

* Familiarc stands for FAMILIARC™, Trustarc stands for TRUSTARC™, and Premiarc stands for PREMIARC™.

Welding materials for Coal-fired steam boiler

Welding materials for T/P91, T/P92 steel

Our product line-up per PWHT temperature

Process / Product
(Polarity / AWS Classification)		 Mn+Ni
content
of
deposit
-ed
metal
(wt%)		 Recomm
-ended
PWHT
temp.
(℃)
SMAW AWS
A5.5: 2014		 SAW AWS
A5.23: 2011		 GTAW AWS
A5.28: 2005		 GMAW AWS
A5.28: 2005
T/P91
(9Cr-1Mo
-V-Nb)		 TrustarcCM-95B91
(DCEP /E9015-B91)
TrustarcCM-96B91
(AC /E9016-B91)		 TrustarcPF-90B91 / TrustarcUS-90B91
(DCEP /F9PZ-EB91-B91)
TrustarcPF-200S / TrustarcUS-90B91
(AC /F9PZ-EB91-B91)		 TrustarcTG-S90B91
(ER90S-B9)		 TrustarcMG-S90B91
(ER90S-B9)		 ≦1.0
(SAW:
≦1.2)		 750
～800
TrustarcCM-95B9(DCEP)
TrustarcCM-96B9(AC)		 TrustarcPF-90B9 / TrustarcUS-90B9(DCEP)
TrustarcPF-200S / TrustarcUS-90B9(AC)		 TrustarcTG-S90B9 TrustarcMG-S90B9 1.0
～1.5		 750
～780
TrustarcCM-9Cb
(AC/DCEP) 		TrustarcPF-200S / TrustarcUS-9Cb(AC/DCEP) TrustarcTG-S9Cb TrustarcMG-S9Cb 1.5
～3.0		 710
～760
T/P92
(9Cr-2W
-0.5Mo-VNb)		 TrustarcCR-12S
(AC/DCEP)		 TrustarcPF-200S / TrustarcUS-12CRS(AC) TrustarcTG-S12CRS TrustarcMG-S12CRS 1.2
～2.5		 740
～760
TrustarcPF-200S / TrustarcUS-12CRSD(DCEP)

*SAW: Flux / Wire

Type of Steel Product Polarity /
Shielding Gas		 Typical Chemical Composition of Deposited Metal, wt%
C Si Mn Ni Cr Mo V Nb N Co Mn+Ni
T/P91
(9Cr-1Mo-V-Nb)		 TrustarcCM-95B91 DCEP 0.10 0.20 0.64 0.10 8.20 0.90 0.20 0.05 0.03 0.40 0.74
TrustarcPF-90B91 /
TrustarcUS-90B91		 DCEP 0.08 0.17 0.89 0.14 8.62 0.98 0.18 0.03 0.05 0.31 1.03
TrustarcPF-200S /
TrustarcUS-90B91		 AC 0.08 0.15 0.85 0.12 8.64 0.98 0.18 0.03 0.05 0.32 0.97
TrustarcTG-S90B91 DCEN /
100%Ar		 0.10 0.26 0.71 0.13 8.50 0.97 0.19 0.05 0.04 0.38 0.84
TrustarcMG-S90B91 DCEP /
Ar-5%CO2		 0.12 0.24 0.64 0.15 8.47 0.98 0.18 0.05 0.04 0.41 0.79
Type of Steel Product Polarity /
Shielding Gas		 Typical Mechanical Properties of Deposited Metal
0.2%
Yield
Strength
(MPa)		 Tensile
Strength
(MPa)		 vE20℃
(J)		 PWHT
(℃/h)		 Ac1
(℃)
T/P91
(9Cr-1Mo-V-Nb)		 TrustarcCM-95B91 DCEP 593 731 50 767/2 809
TrustarcPF-90B91 /
TrustarcUS-90B91		 DCEP 585 722 71 760/2 788
TrustarcPF-200S /
TrustarcUS-90B91		 AC 563 722 69 760/2 794
TrustarcTG-S90B91 DCEN / 100%Ar 579 713 216 760/2 820
TrustarcMG-S90B91 DCEP / Ar-5%CO2 529 689 74 760/8 813

* Recommended PWHT temp.

Application

Typical creep rupture properties of deposted metal

Application

Welding Materials for Boiler of Thermal Power Plant

KWT Special Edition Heat-resistant Low-alloy Steel

Line-up for Thermal Power Welding - SMAW

Type of Steel DCEP AC
AWS Class. Product AWS Class. Product
P1 / T1
(0.5Mo)		 E7016-A1 TrustarcCM-A76
TrustarcCM-B76		 E7016-A1 TrustarcCM-A76
TrustarcCM-B76
P2 / T2 E8016-B1 TrustarcCM-B86 – –
P11 / T11
(1.25Cr-0.5Mo)		 E7015-B2L TrustarcCM-B95 – –
E8016-B2
E8016-B2 TrustarcCM-A96
TrustarcCM-A96MB
E8018-B2 TrustarcCM-B98 E8018-B2 TrustarcCM-B98
P22 / T22
(2.25Cr-Mo)		 E8015-B3L TrustarcCM-B105 – –
E9015-B3
– –
E9016-B3
E9016-B3 TrustarcCM-A106N
E9018-B3 TrustarcCM-B108 E9018-B3 TrustarcCM-B108
P23 / T23 E9016-G
E9016-G TrustarcCM-2CW
P91 / T91
(9Cr)		 E9015-B91
E9016-B91
E9016-G
E9016-G TrustarcCM-9Cb
P92 / T92
P122 / T122		 E9016-G
– TrustarcCR-12S

Line-up for Thermal Power Welding - SAW

Type of Steel DCEP AC
AWS Class. Product AWS Class. Product
P1 / T1
(0.5Mo)		 – – F8P6-EA3-A3
(F9A6)		 FamiliarcMF-38 /
TrustarcUS-40
F8P6-EA4-A4
(F8A4)		 FamiliarcMF-38 /
TrustarcUS-A4
F8P6-EG-A4
(F8A4)		 FamiliarcMF-38 /
TrustarcUS-49
P11 / T11
(1.25Cr-0.5Mo)		 F7PZ-EB2-B2
F7PZ-EB2-B2 FamiliarcG-80 /
TrustarcUS-B2
F7PZ-EG-B2 FamiliarcMF-29A /
TrustarcUS-511		 F7PZ-EG-B2 TrustarcMF-29A /
TrustarcUS-511
F8P2-EG-B2
F8P2-EG-B2 TrustarcPF-200 /
TrustarcUS-511N
P23 / T23 – FamiliarcMF-29A /
TrustarcUS-2CW		 – –
P91 / T91
(9Cr)		 F8PZ-EB91-B91 TrustarcPF-90B9 /
TrustarcUS-90B91		 F8PZ-EB91-B91
P92 / T92
P122 / T122		 – TrustarcPF-200S /
TrustarcUS-12CRSD		 – –

Line-up for Thermal Power Welding – GMAW, GTAW

Type of Steel AWS Class. FCAW
P11/T11 (1.25Cr-0.5Mo) E81T1-B2C
E81T1-B2M
P22/T22 (2.25Cr-1Mo) E91T1-B3C
E91T1-B3M
Type of Steel AWS Class. Product
GMAW GTAW
P1/T1
(0.5Mo)		 ER70S-A1 TrustarcMG-S70SA1 TrustarcTG-S70SA1
ER80S-G TrustarcMG-SM TrustarcTG-SM
P2 / T2 ER80S-G TrustarcMG-CM –
– – TrustarcTG-SCM
P11 / T11
(1.25Cr-0.5Mo)		 ER80S-B2
ER80S-G TrustarcMG-S1CM
P22 / T22
(2.25Cr-1Mo)		 ER90S-B3 –
ER90S-G TrustarcMG-S2CM
P23 / T23 ER90S-G TrustarcMG-S2CW TrustarcTG-S2CW
P91 / T91
(9Cr)		 ER90S-B9
ER90S-G
P92 / T92
P122 / T122		 ER90S-G

* Single pass only

Welding Materials for Austenitic Heat-resistant Stainless Steel

Line-up for Ultra Super Critical piping

Product Applicable Bese Metal Type of Filler Metal Chemistry of Filler Metal
SUPER304H®
ASTM A213 S30432		 Filler Wire for GTAW 19Cr-16Ni-3Cu-3Mn-2W
-0.5Nb-0.2N-0.1C
PremiarcNC-B1AS TEMPALOY®AA-1
ASTM A213 S30434		 Covered Electrode for SMAW 19Cr-14Ni-3Cu-2.4Mo
-1.6Mn-0.4Nb-0.13C
PremiarcTG-S1AS Filler Wire for GTAW
PremiarcNC-B3A TEMPALOY®A-3
ASTM A213 S30942		 Covered Electrode for SMAW 22Cr-16Ni-1.4Mn
-0.6Mb-0.13N
PremiarcTG-S3A Filler Wire for GTAW

* Super304H is registered trade mark of Nippon Steel & Sumitomo metal Corporation.

* TEMPALOY is registerd trade mark of JFE Steel Corporation.

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