Brand Name

GB

AWS A5.18

Welding
Position

Type of
Current

Shield Gas

Chemical Composition of Deposit metal%

Mechanical Performance of Deposit metal

Application

C

Si

Mn

S

P

Cr

Ni

Mo

Cu

b

Mpa(kgf/mm2)

s

Mpa(kgf/mm2)

δs(%)

Impact Work AKV

J

DF.ER49-1

ER49-1

F.V.OH.H

DC+

CO2

≤0.11

0.65-0.95

1.80-2.10

≤0.03

≤0.030

≤0.20

≤0.50

≥490

≥372

≥20

Welding of low carbon steel and some low alloy steel structures.

DF.ER49-G

ER49-G

ER70S-G

F.V.OH.H

DC+

CO2

≤0.15

0.55-1.10

1.40-1.90

≤0.03

≤0.03

≥490

≥390

≥22

DF.ER50-6

ER50-6

ER70S-6

F.V.OH.H

DC+

CO2 O2=Ar

0.06-0.15

0.80-1.15

1.40-1.85

0.025

≤0.035

≤0.50

Ti0.10-0.14

≥500

≥420

≥22

Welding of carbon steels and 500N/mm2 high tensile steels.

DF.ER59-G

F.V.OH.H

DC+

CO2

0.04-0.07

0.0-0.6

1.3-1.6

≤0.03

≤0.03

0.6-0.9

0.3-0.6

≥590

≥450

≥16

Welding of carbon steels and 59ON/mm2 high tensile steels.

DF.H0Cr21Ni10

H0Cr21Ni10

A5.9  ER308

F.V.OH.H

DC

Ar

0.039

0.35

1.75

0.023

0.01

20.12

9.47

605

41

Welding of important 0Crl9NillTi stainless  steels structures working  below 300.

DF.H00Cr21Ni10

H00Cr21Ni10

A5.9  ER308L

F.V.OH.H

DC

Ar

0.025

0.43

1.63

0.022

0.009

20.05

10.2

575

42

Welding of 0Cr19Ni11 and 0CrlgNil0 stainless steels structures, such as equipments for synthetic fibres, fertilizer and oil. etc.

DF.H0Cr20Ni10Ti

H0Cr20Ni10Ti

A5.9  ER321

F.V.OH.H

DC

Ar

0.026

0.42

1.49

0.023

0.014

19.22

9.78

Ti0.77-0.65

592

40

Welding of important 0Crl9Nil 1Ti stainless steels structures.

DF.H0Cr20Ni10Nb

H0Cr20Ni10Nb

A5.9  ER347

F.V.OH.H

DC

Ar

0.04

0.41

1.62

0.021

0.011

20.36

9.91

Ti0.77-0.65

627

41