AS DA-715

Askaynak

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General Description

AS DA-715 is a thick coated basic electrode. The weld metal contains 1 % Ni. It is particularly used for the welding of fine-grained steels and steels which maintain their toughness at low temperatures down to - 60°C. Weldability is very good at all positions except vertical down. The weld metal diffusible hydrogen level is below 5 ml/100 g. Recovery is 120 %.

 

Classification and Typical Weld Metal Composition

AWS A5.5 : E8018-C3 H4
EN ISO 2560-A
: E 50 6 1 Ni B 42 H5
C Si Mn Ni S P  

0,05

0,35

1,30

1,00

< 0,02

< 0,02

 

 

Mechanical Properties of the Weld Metal, Typical

Yield Strength : 540 (N/mm²)    
Tensile Strength : 620 (N/mm²)    
Elongation (L=5d) : 27 (%)    
Impact (ISO-V)
: 80 (Joule) (–50°C)  
    60 (Joule) (–60°C)  
 

Applications and Materials to be Welded

It is especially suitable for high strength low alloy steels used at low temperatures and at weld joints which require high impact strength. It is used at root and other passes for chemical industry, cold air warehouses, pressure and boiler vessels, piping/tubing and offshore platforms.

General Structural Steels :
DIN: St 44, St 44-2, St 44-3, St 52-3
EN: S275, S355
Fine Grained Steels :
DIN: StE 255 - StE 500
EN: S255N - S500N
DIN: WStE 255 - WStE 500
EN: P255NH - P500NH
DIN: TStE 255 - TStE 500
EN: S255NL - S500NL / P275NL1 - P460NL1
DIN: EStE 255 - EStE 355
EN: S255NL1 - S500NL1 / P275NL2 - P460NL2
Boiler & Pressure Vessel Steels :
DIN: HI, HII, HIII
EN: P235GH, P265GH, P285NH
DIN: 17 Mn 4, 19 Mn 5
EN: P295GH, P310GH
Low Temperature Steels :
DIN: TTSt 35 N, TTSt 35 V, 15 MnNi 6 3
EN: 11 MnNi 5 3, 13 MnNi 6 3
Ship Plates :
A, D, E
AH32 - EH36
Pipe Materials :
DIN: X42, X46, X52, X56, X60, X65 (API 5LX)
EN: L290GA - L360GA
 

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   2380 200 4,8
3.25 350 100 - 150   3700 135 5,0
4.00 450 140 - 190   7300   90 6,6
5.00 450 180 - 240 10850   56 6,1
 

Welding Positions

 

Ürün Broşürü (PDF)