K-7018HR

Welding of 490MPa class high tensile steel of ships, buildings and high resistance to crack

KS         D 7006 : E5016
AWS     A5.1 : E7018 H4R
EN        ISO 2560-A : E42 3 B 32 H5
EN        ISO 2560-B : E49 18 A U H5
JIS        Z 3211 : E4918

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K-7016HR
K-7018(PIPEWELD)

Description

Sizes (mm) Standard Welding Position Shielding gas Polarity
2.6~6.0 KS D 7006
AWS A5.1
EN ISO 2560-A
EN ISO 2560-B
JIS Z 3211		 E5016
E7018 H4R
E42 3 B 32 H5
E49 18 A U H5
E4918		 F, HF, H, VU, OH – AC/DC(+)
 
Typical chemical composition all-weld metal (%)
C Si Mn P S Cr Ni Mo Remark
0.07 0.60 0.98 0.015 0.012 0.03 0.02 0.01 –
 
Typical mechanical properties of all-weld metal
Y.S (MPa) T.S (MPa) EI. (%) Hardness (HV) IV (J) PWHT
550 620 29 – 80 (-30℃) –
Product Dimensions and Weld Current Range
 
Welding
Position		 Sizes (mm) Ampere (A) Volt (V)
Min. Max. Min. Max.
F, HF 2.6mm 60 100
VU, OH 2.6mm 50 80
F, HF 3.2mm 90 130
VU, OH 3.2mm 80 120
F, HF 4.0mm 130 180
VU, OH 4.0mm 110 170
F, HF 5.0mm 200 250
VU, OH 5.0mm 160 210
F, HF 6.0mm 250 310

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