K-91TB9

For 650Mpa Grade 9%Cr-1%Mo-V Heat resisting steel, Arc is stable with 20%CO2+75%Ar gas. Spatter is very low. Slag removal is excellent. Bead appearance is good.

AWS           A 5.29 : E91T1-B9M
AWS           A 5.36 : E91T1-M21PZ-B9
EN              ISO 17634-B : T69 T1-1M-9C1MV
JIS              Z 3318 : T69 T1-1M-9C1MV

Category:
K-91TB3LS
K-71TW

Description

Sizes (mm) Standard Welding Position Shielding gas Polarity
1.2~1.6 AWS A 5.29
AWS A 5.36
JIS Z 3318
EN ISO 17634-B		 E91T1-B9M
E91T1-M21PZ-B9
T69 T1-1M-9C1MV
T69 T1-1M-9C1MV		 F, HF, H, VU, VD, OH Ar+
20%CO2		 DC(+)
 
Typical chemical composition all-weld metal (%)
C Si Mn P S Cr Ni Mo Remark
0.10 0.23 0.72 – – 9.10 – 1.00 V : 0.18
 
Typical mechanical properties of all-weld metal
Y.S (MPa) T.S (MPa) EI. (%) Hardness (HV) IV (J) PWHT
630 680 24 – – 760℃ X 2Hr
Product Dimensions and Weld Current Range
 
Welding
Position		 Sizes (mm) Ampere (A) Volt (V)
Min. Max. Min. Max.
F, HF 1.2mm 220 280 25 30
VU 1.2mm 200 240 25 28
OH 1.2mm 160 220 23 28
F, HF 1..4mm 240 320 26 33
VU 1..4mm 220 260 26 30
OH 1..4mm 180 240 24 29
F, HF 1.6mm 260 380 27 34
VU 1.6mm 240 300 27 32
OH 1.6mm 200 260 25 30

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