AS DA-731

Askaynak

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General Description

AS DA-731 is a rutile coated electrode. It gives a Mo alloyed weld metal that is used in the welding of boiler and pressure vessels operating under high temperatures

 

Classification and Typical Weld Metal Composition

TS EN ISO 3580-A : E Mo R 22
AWS A5.5 : E8013-G
C Si Mn Mo  

0,08

0,30

0,70

0,50

 

 

Mechanical Properties of the Weld Metal, Typical

Yield Strength : 500 (N/mm²)    
Tensile Strength : 600 (N/mm²)    
Elongation (L=5d) : 24 (%)    
Impact (ISO-V)
: 50 (Joule) (+20°C)  
 

Approvals and Certificates

Certificates

GOST

SEPRO

TSE

 

Applications and Materials to be Welded

AS DA-731 is used for the welding of low alloyed and pressure vessel steels with a tensile strength up to 540 N/mm². It is ideal for the welding of boiler and pressure vessel steels and pipe connections that operate under temperatures up to 525°C. AS DA-735, a basic coated electrode, should be preferred in multipass applications of thick sectioned or rigidly restrained mass structures.

Fine Grained Steels :
DIN: StE 255 - StE 500
EN: S255N - S500N
DIN: WStE 255 - WStE 500
EN: P255NH - P420NH
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 (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
DIN: 16 Mo 5
Elevated Temperature Steels :
DIN: St 35-8, St 45-8
EN: P235G1TH - P255G1TH
Cast Steels :
DIN: GS-45
EN: GE240
DIN: GS-22 Mo 4
EN: G20Mo5
DIN: GS-C 25
EN: GP240GH
 

Welding Parameters / Packing and Diameter Informations

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

Diameter
(mm)
Length
(mm)
Current
(Amper)
Electrode Weight
(g/100 pcs)
Quantity
(pcs/box)
Weight
(kg/box)
2.50 350   75 - 110 2020 210 4,2
3.25 350 100 - 140 3380 150 5,1
 

Welding Positions

 

Ürün Broşürü (PDF)