AS B-268

Askaynak

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General Description

AS B-268 is a basic coated electrode. It gives excellent quality, smooth and homogeneous weld beads with a very low impurity (like P and S) content. It guarantees a yield strength value up to 430 N/mm² for medium and high strength steels. ø 2.5 or ø 3.25 mm electrode selection in the root pass brings homogeneous weld beads due to full penetration, which brings great advantage in special welding applications. 

 

Classification and Typical Weld Metal Composition

AWS A5.1 : E7016-1
EN ISO 2560-A : E 46 6 B 22
C Si Mn P S  

0,07

0,50

1,10

< 0,03

< 0,03

 

 

Mechanical Properties of the Weld Metal, Typical

Yield Strength : 460 (N/mm²)    
Tensile Strength : 550 (N/mm²)    
Elongation (L=5d) : 30 (%)    
Impact (ISO-V)
: 240 (Joule) (0°C)  
    240 (Joule) (–20°C)  
    180 (Joule) (–40°C)  
    120 (Joule) (–60°C)  

Note : Redrying temperature is 250-400°C / 2-3 hours

 

Approvals and Certificates

Certificates

GOST

SEPRO

NAKS

TSE

 

Applications and Materials to be Welded

AS B-268 is designed for steel constructions and machines operating under dynamic forces. Ship building, boiler and pressure vessel manufacturing and pipe connections are among its application areas. It is recommended for the welding of high carbon, high strength low alloyed steels having high (P) and (S) content; high strength ship's plate of A-, D- and E- quality and vessel plates of 17 Mn 4 and 19 Mn 5 type. AS B-268 can join steel parts to steel casts and can be used in the welding of thick parts. It is suitable in the root pass and recommended especially in applications where high impact values are required at -30 or -40 °C.

General Structural Steels :
DIN: St 33, St 34, St 37, St 44, St 44-2, St 44-3, St 52
EN: S185, S235, S275, S355
DIN: St 37-4, St 44-4, St 52-4
EN: P235TR2 - P355T2
DIN: St 50-2, St 60-2
EN: E295, E335
DIN: C 22 - C 35 ; Ck 22 - Ck 35
EN: C22 - C35
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
Elevated Temperature Steels :
DIN: St 35-8, St 45-8
EN: P235G1TH - P255G1TH
Boiler & Pressure Vessel Steels :
DIN: HI, HII, HIII
EN: P235GH, P265GH, P285NH
DIN: 17 Mn 4, 19 Mn 6
EN: P295GH, P355GH
Ship Plates :
DIN: A, D, E
DIN: AH32 - EH36
Cast Steels :
DIN: GS-38, GS-45, GS-52
EN: GE200, GE240, GE260
Pipe Materials :
DIN: StE 210-7 - StE 360-7
EN: L210 - L360NB
DIN: StE 290-7 TM - StE 360-7 TM
EN: L290MB - L360MB
DIN: X42, X46, X52, X60 (API 5LX)
 

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)
2.00 300 50 - 80   1500 125 1,9
2.50 350   75 - 110   2390 200 4,8
3.25 350 110 - 150   3860 130 5,0
4.00 450 150 - 190   7260   85 6,2
5.00 450 170 - 240 10440   60 6,3
 

Welding Positions

 

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