AS DA-735

Askaynak

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General Description

AS DA-735 is a basic coated electrode. It gives a Mo alloyed weld metal that is used in the welding of boiler and pressure vessels operating under high temperatures. Ductile weld metal has a particular creep resistance. It is  ideal in multipass applications that is required in the welding of thick and rigidly restrained mass structures. It gives high quality weld beads with good mechanical properties.

 

Classification and Typical Weld Metal Composition

EN 1599 : E Mo B 22
AWS A5.5 : E7018-A1
C Si Mn Mo  

0,08

0,30

0,80

0,50

 

 

Mechanical Properties of the Weld Metal, Typical

Yield Strength : 510 (N/mm²)    
Tensile Strength : 620 (N/mm²)    
Elongation (L=5d) : 24 (%)    
Impact (ISO-V)
: 150 (Joule) (+20°C)  
 

Approvals and Certificates

Lloyd Approvals

TL

Certificates

GOST

SEPRO

TSEK

 

Applications and Materials to be Welded

AS DA-735 is used for the welding of 15 Mo 3 grade steels operating under temperatures up to 550°C. It is also ideal for the welding of fine grained steels (up to St E480-7 TM). It is ideal for the welding of boiler and pressure vessel steels and pipe connections that operate under temperatures up to 525°C. The stable arc enables proper welding in the root pass and in difficult positions.

Fine Grained Steels :
DIN: StE 255 - StE 500
EN: S255N - S500N
DIN: WStE 255 - WStE 500
EN: P255NH - P500NH
Pipe Materials :
DIN: StE 320-7 - StE 415-7
EN: L320 - L415NB
DIN: StE 360-7 TM - StE 415-7 TM
EN: L360MB - L415MB
DIN: X52, X56, X60, X65 (API 5LX)
Boiler & Pressure Vessel Steels :
DIN: HI, HII, HIII
EN: P235GH, P265GH, P285NH
DIN: 17 Mn 4, 19 Mn 5, 15 Mo 3
EN: P295GH, P310GH, 16 Mo 3
EN: P355GH
DIN: 16 Mo 5
Elevated Temperature Steels :
DIN: St 35-8, St 45-8
EN: P235G1TH - P255G1TH
Cast Steels :
DIN: GS-45, GS-52, GS-60
EN: GE240 - GE300
DIN: GS-22 Mo 4
EN: G20Mo5
DIN: GS-C 25
EN: GP240GH
Creep Resistant Steels :
DIN: 17 MnMoV 6 4, 15 NiCuMoNb 5
EN: 20 MnMoNi 4 5
 

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 - 110 2490 200 5,0
3.25 350 110 - 140 3840 135 5,2
4.00 450 150 - 190 7330   80 5,9
 

Welding Positions

 

Ürün Broşürü (PDF)