K-81TK2M

For 560MPa tensile at LNG storage tank, shipbuilding, bridges, good impact toughness at -60℃(Ni 1.5% contained)

KS               D 7104 : YFL-A506R
AWS           A5.29 : E81T1-K2M
AWS           A5.36 : E81T1-M21A8-K2
EN              ISO 17632-A : T50 6 1.5Ni P M21 1 H5
EN              ISO 17632-B : T55 6 T1-1 M21 A-N3-U H5
JIS              Z 3313 : T55 6 T1-1 M A-N3-U H5

Category:
K-81TK2
K-81TSR

Description

Sizes (mm) Standard Welding Position Shielding gas Polarity
1.2~1.6 AWS A5.29
AWS A5.36
KS D 7104
JIS Z 3313
EN ISO 17632-A
EN ISO 17632-B		 E81T1-K2M
E81T1-M21A8-K2
YFL-A506R
T55 6 T1-1 M A-N3-U H5
T50 6 1.5Ni P M21 1 H5
T55 6 T1-1 M21 A-N3-U H5		 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
0.03 0.43 1.45 0.012 0.009 – 1.50 – –
 
Typical mechanical properties of all-weld metal
Y.S (MPa) T.S (MPa) EI. (%) Hardness (HV) IV (J) PWHT
550 640 25 – 95 (-60℃) –
Product Dimensions and Weld Current Range
 
Welding
Position		 Sizes (mm) Ampere (A) Volt (V)
Min. Max. Min. Max.
F, HF 1.2mm 200 280 23 28
VU 1.2mm 180 240 23 27
OH 1.2mm 150 230 21 25
F, HF 1..4mm 220 340 23 30
VU 1..4mm 200 260 24 27
OH 1..4mm 160 230 22 25
F, HF 1.6mm 240 380 23 32
VU 1.6mm 220 260 24 27
OH 1.6mm 170 240 21 27

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