AS DA-708

Askaynak

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General Description

AS DA-708 is a heavily coated, Ni-Cu alloyed basic electrode. It gives a weld metal that has an excellent corrosion resistance to sea water and to flue gases. Weld metal has good mechanical properties. AS DA-708 welds with a quite, stable arc giving very little spatter

 

Classification and Typical Weld Metal Composition

AWS A5.5 : E8018-G
EN ISO 2560-A : E 42 2 Z B 42
C Si Mn Ni Cu  

0,05

0,30

1,00

0,60

0,45

 

 

Mechanical Properties of the Weld Metal, Typical

Yield Strength : 470 (N/mm²)    
Tensile Strength : 570 (N/mm²)    
Elongation (L=5d) : 28 (%)    
Impact (ISO-V)
: 120 (Joule) (–20°C)  
 

Approvals and Certificates

Certificates

GOST

SEPRO

TSE

 

Applications and Materials to be Welded

The electrode can be used in all positions for the welding of all types of joints. AS DA-708 is particularly designed for welding the shell platings of ships where the protective paint coating wears severely. Ship steels of  A-, D- and E- quality and slow corrosion steels (due to its copper content) of the CORTEN-A and CORTEN-B type are among other application areas. It can be used in the welding of parts that work under dynamic loads at elevated temperatures; in all construction applications including  bridges, boiler and pressure vessels, and shipbuilding. AS DA-708 can also be used in the root pass.  

General Structural Steels :
DIN: St 44, St 44-2, St 44-3, St 52-3
EN: S275, S355
DIN: St 50-2, St 60-2, St 70-2
EN: E295, E335, E360
Fine Grained Steels :
DIN: StE 255 - StE 420
EN: S255N - S420N
DIN: WStE 255 - WStE 420
EN: P255NH - P420NH
DIN: TStE 255 - TStE 420
EN: S255NL - S420NL / P275NL1 - P355NL1
DIN: EStE 255 - EStE 355
EN: S255NL1 - S315NL1 / P275NL2 - P355NL2
Elevated Temperature Steels :
DIN: St 35-8, St 45-8
EN: P235G1TH - P255G1TH
Pipe Materials :
DIN: StE 210-7 - StE 360-7
EN: L245NB - L360NB
Boiler & Pressure Vessel Steels :
DIN: HI, HII, HIII
EN: P235GH, P265GH, P285NH
DIN: 17 Mn 4, 19 Mn 5
EN: P295GH, P310GH
Ship Plates :
DIN: A, D, E
Weather Resisting Steels :
DIN: St 52-3 Cu3
EN: S355 J2G3Cu
EN: S235 J0W, S235 J2W, S355 J0W
EN: S355 J2W, S355 K2G1W
 

Welding Parameters / Packing and Diameter Informations

Current Type and Polarity : DC (+)

Diameter
(mm)
Length
(mm)
Current
(Amper)
Electrode Weight
(g/100 pcs)
Quantity
(pcs/box)
Weight
(kg/box)
2.50 350   80 - 115 2320 200 4,6
3.25 350 100 - 140 3700 135 5,0
4.00 450 150 - 190 7040 80 5,6
 

Welding Positions

 

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