AS DA-753

Askaynak

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General Description

AS DA-753 is a basic coated electrode. It is used for the welding of fine-grained, heat treatable high strength steels with a yield strength up to 760 N/mm². It can also be used in the welding of fine grained structural steels having a yield strength value greater than 760 N/mm². It gives a weld metal that has a high toughness value and resistant to cracking at low temperatures
down to - 50°C.

 

Classification and Typical Weld Metal Composition

TS EN ISO 18275-A : E 69 5 Mn 2 NiCrMo BT 42
AWS A5.5 : E11018-G
C Si Mn Cr Ni Mo  

0,05

0,40

1,50

0,35

1,80

0,45

 

 

Mechanical Properties of the Weld Metal, Typical

Yield Strength : 700 (N/mm²)    
Tensile Strength : 800 (N/mm²)    
Elongation  (L=5d) : 20 (%)    
Impact (ISO-V)
: 115 (Joule) (+20°C)  
    85 (Joule) (–20°C)  
    70 (Joule) (–40°C)  
    55 (Joule) (–50°C)  
    40 (Joule) (–60°C)  
 

Approvals and Certificates

Lloyd Approvals

TL

Certificates

GOST

SEPRO

TSE

 

Applications and Materials to be Welded

It is used for welding fine grained, low alloyed high strength structural steels at room temperature or with moderate preheat. It is used in the welding of steel structures, boiler and pressure vessels, and for construction of heavy machinery. It is particularly used in the root pass of high strength steels (790 N/mm²).

1) If possible, each joint should be welded continuously, except electrode change and slag removal.
2) In multi-pass welding applications, interpass temperature should be maintained at 100-150°C.
3)  Use only dry electrodes.

Fine Grained Steels :
DIN: StE 500
EN: S500N
DIN: WStE 500
EN: P500NH
DIN: TStE 500
EN: P500NL
DIN: 15 NİCrMo 10 6, 16 NİCrMo 12 6
DIN: 11 NİMnCrMo 5 5, 17 MnCrMo 3 3
DIN: 12MnNİMo 5 5, 11 NİMoV 5 3
DIN: TStE 620 V - TStE 690 V
EN: S620QL - S690QL
Pipe Materials :
X70, X75 (API 5LX)
Heat Treated Fine Grained Structural Steels :
DIN: N-A-XTRA 56, N-A-XTRA 63, N-A-XTRA 70
EN: S550QL1, S620QL1, S690QL1
DIN: T1, T1A, T1B, HSB 77 V
 

Welding Parameters / Packing and Diameter Informations

Current Type and Polarity : DC (+) / AC min. 70V

Diameter
(mm)
Length
(mm)
Current
(Amper)
Electrode Weight
(g/100 pcs)
Quantity
(pcs/box)
Weight
(kg/box)
2.50 350   75 - 110   2290 200 4,6
3.25 350 100 - 145   3800 135 5,1
4.00 450 130 - 190   7390   80 5,9
5.00 450 180 - 250 11550   60 6,9
 

Welding Positions

 

Ürün Broşürü (PDF)