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.

Table of contents

Welding materials for Coal-fired steam boiler
- Welding materials for T/P91, T/P92 steel
- Typical creep rupture properties of deposted metal
Welding Materials for Boiler of Thermal Power Plant
Welding Materials for Austenitic Heat-resistant Stainless Steel

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	Mn+Ni content of deposit -ed metal (wt%)	Recomm -ended PWHT temp. (℃)
T/P91 (9Cr-1Mo-V-Nb)	TCM-95B91 (DCEP / E9015-B91) TCM-96B91 (AC / E9016-B91)	TPF-90B91/ TUS-90B91 (DCEP / F9PZ-EB91-B91) TPF-200S/ TUS-90B91 (AC / F9PZ-EB91-B91)	TTG-S90B91 (ER90S-B9)	TMG-S90B91 (ER90S-B9)	≦1.0 (SAW: ≦1.2)	750～800
	TCM-95B9(DCEP) TCM-96B9(AC)	TPF-90B9/ TUS-90B9(DCEP) TPF-200S/ TUS-90B9(AC)	TTG-S90B9	TMG-S90B9	1.0～1.5	750～780
	TCM-9Cb (AC/DCEP)	TPF-200S/ TUS-9Cb(AC/DCEP)	TTG-S9Cb	TMG-S9Cb	1.5～3.0	710～760
T/P92 (9Cr-2W-0.5Mo-VNb)	TCR-12S (AC/DCEP)	TPF-200S/ TUS-12CRS(AC) TPF-200S/ TUS-12CRSD(DCEP)	TTG-S12CRS	TMG-S12CRS	1.2～2.5	740～760

*Fstands for FAMILIARC™, Tstands for TRUSTARC™, and Pstands for PREMIARC™.
*SAW: Flux / Wire

Type of Steel	Product	Polarity / Shielding Gas	Typical Chemical Composition of Deposited Metal, wt%
Type of Steel	Product	Polarity / Shielding Gas	C	Si	Mn	Ni	Cr	Mo	V	Nb	N	Co	Mn+Ni
T/P91 (9Cr-1Mo-V-Nb)	TCM-95B91	DCEP	0.10	0.20	0.64	0.10	8.20	0.90	0.20	0.05	0.03	0.40	0.74
	TPF-90B91/ TUS-90B91	DCEP	0.08	0.17	0.89	0.14	8.62	0.98	0.18	0.03	0.05	0.31	1.03
	TPF-200S/ TUS-90B91	AC	0.08	0.15	0.85	0.12	8.64	0.98	0.18	0.03	0.05	0.32	0.97
	TTG-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
	TMG-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

*Fstands for FAMILIARC™, Tstands for TRUSTARC™, and Pstands for PREMIARC™.

Type of Steel	Product	Polarity / Shielding Gas	Typical Mechanical Properties of Deposited Metal
Type of Steel	Product	Polarity / Shielding Gas	0.2% Yield Strength (MPa)	Tensile Strength (MPa)	vE20℃ (J)	PWHT (℃/h)	Ac1 (℃)
T/P91 (9Cr-1Mo-V-Nb)	TCM-95B91	DCEP	593	731	50	767/2	809
	TPF-90B91/ TUS-90B91	DCEP	585	722	71	760/2	788
	TPF-200S/ TUS-90B91	AC	563	722	69	760/2	794
	TTG-S90B91	DCEN/100%Ar	579	713	216	760/2	820
	TMG-S90B91	DCEP/Ar-5%CO₂	529	689	74	760/8	813

*Fstands for FAMILIARC™, Tstands for TRUSTARC™, and Pstands for PREMIARC™.
*Recommended PWHT temp.

Microstructure of weld metal has martensite structure in as-welded condition, and tempered martensite strucrure after PWHT. — Example of microstructure of deposited metal (TRUSTARC™ CM-95B91)

3rd ~ last layer : TRUSTARC™ CM-95B91 Root ~ 2nd layer : TRUSTARC™ TG-S90B91 — Example of macrostructure of weld joint

Typical creep rupture properties of deposted metal

Welding Materials for Boiler of Thermal Power Plant

Line-up for Thermal Power Welding - SMAW

Type of Steel	DCEP		AC
Type of Steel	AWS Class.	Product	AWS Class.	Product
P1 / T1 (0.5Mo)	E7016-A1	TCM-A76 TCM-B76	E7016-A1	TCM-A76 TCM-B76
P2 / T2	E8016-B1	TCM-B86	–	–
P11 / T11 (1.25Cr-0.5Mo)	E7015-B2L	TCM-B95	–	–
	E8016-B2	TCM-A96 TCM-A96MBD	E8016-B2	TCM-A96 TCM-A96MB
	E8018-B2	TCM-B98	E8018-B2	TCM-B98
P22 / T22 (2.25Cr-Mo)	E8015-B3L	TCM-B105	–	–
	E9015-B3	TCM-A105D TCM-B105D	–	–
	E9016-B3	TCM-A106ND	E9016-B3	TCM-A106N
	E9018-B3	TCM-B108	E9018-B3	TCM-B108
P23 / T23	E9016-G	TCM-2CW	E9016-G	TCM-2CW
P91 / T91	E9015-B91	TCM-95B91	E9016-B91	TCM-96B91
P91 / T91	E9016-G	TCM-9Cb	E9016-G	TCM-9Cb
P92 / T92 P122 / T122	E9016-G	TCR-12S	–	TCR-12S

*Fstands for FAMILIARC™, Tstands for TRUSTARC™, and Pstands for PREMIARC™.

Line-up for Thermal Power Welding - SAW

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

*Fstands for FAMILIARC™, Tstands for TRUSTARC™, and Pstands for PREMIARC™.

Line-up for Thermal Power Welding – GMAW, GTAW

Type of Steel	AWS Class.	FCAW
P11/T11 (1.25Cr-0.5Mo)	E81T1-B2C E81T1-B2M	TDW-81B2C (CO₂) TTDW-81B2 (Ar-CO₂)
P22/T22 (2.25Cr-1Mo)	E91T1-B3C E91T1-B3M	TDW-91B2C (CO₂) TDW-91B2 (CO₂)

*Fstands for FAMILIARC™, Tstands for TRUSTARC™, and Pstands for PREMIARC™.

Type of Steel	AWS Class.	Product
Type of Steel	AWS Class.	GMAW	GTAW
P1/T1 (0.5Mo)	ER70S-A1	TMG-S70SA1	TTG-S70SA1
P1/T1 (0.5Mo)	ER80S-G	TMG-SM	TTG-SM
P2 / T2	ER80S-G	TMG-CM	–
P2 / T2	–	–	TTG-SCM
P11 / T11 (1.25Cr-0.5Mo)	ER80S-B2	TMG-S80B2F*	TTG-S80B2
P11 / T11 (1.25Cr-0.5Mo)	ER80S-G	TMG-S1CM	TTG-S1CM
P22 / T22 (2.25Cr-1Mo)	ER90S-B3	–	TTG-S90B3
P22 / T22 (2.25Cr-1Mo)	ER90S-G	TMG-S2CM TMG-S2CMS	TTG-S2CM
P23 / T23	ER90S-G	TMG-S2CW	TTG-S2CW
P91 / T91 (9Cr)	ER90S-B9	TMG-S90B9	TTG-S90B91
P91 / T91 (9Cr)	ER90S-G	TMG-S9Cb	TTG-S9Cb
P92 / T92 P122 / T122	ER90S-G	TMG-S12CRS	TTG-S12CRS

*Fstands for FAMILIARC™, Tstands for TRUSTARC™, and Pstands for PREMIARC™.
*Single pass only

KWT Special Edition Heat-resistant Low-alloy Steel[PDF:3.36MB]

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
PTG-Super304H	SUPER304H® ASTM A213 S30432	Filler Wire for GTAW	19Cr-16Ni-3Cu-3Mn-2W-0.5Nb-0.2N-0.1C
PNC-B1AS	TEMPALOY®AA-1 ASTM A213 S30434	Covered Electrode for SMAW	19Cr-14Ni-3Cu-2.4Mo-1.6Mn-0.4Nb-0.13C
PTG-S1AS	TEMPALOY®AA-1 ASTM A213 S30434	Filler Wire for GTAW	19Cr-14Ni-3Cu-2.4Mo-1.6Mn-0.4Nb-0.13C
PNC-B3A	TEMPALOY®A-3 ASTM A213 S30942	Covered Electrode for SMAW	22Cr-16Ni-1.4Mn-0.6Mb-0.13N
PTG-S3A	TEMPALOY®A-3 ASTM A213 S30942	Filler Wire for GTAW	22Cr-16Ni-1.4Mn-0.6Mb-0.13N

*Fstands for FAMILIARC™, Tstands for TRUSTARC™, and Pstands for PREMIARC™.
*Super304H is registered trade mark of Nippon Steel & Sumitomo metal Corporation.
*TEMPALOY is registerd trade mark of JFE Steel Corporation.

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