AS P-308Mn

Askaynak

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General Description

AS P-308Mn is a basic coated electrode. It gives an austenitic filler metal of the Cr-Ni type that is high (6%) in Mn content. Weld beads are highly resistant to oxidation at operating temperatures up to 850°C and also to acids.

 

Classification and Typical Weld Metal Composition

EN 1600 : E 42 0 RR 12
AWS A5.4 : (E307-15)
DIN 8555 : E 8 - 200 CKZ
Werkstoff-Nr : 1.4370
C Si Mn Cr Ni  

0,10

0,50

6

18

9

 

 

Mechanical Properties of the Weld Metal, Typical

Yield Strength : 420 (N/mm²)  
Tensile Strength : 640 (N/mm²)  
Elongation (L=5d) : 35 (%)  
Hardness : 200 (HB) (as welded)
    350 - 400 (HB) (after cold working)
Impact (ISO-V)
: 100 (Joule) (+20°C)
    75 (Joule) (–60°C)
 

Approvals and Certificates

Lloyd Approvals

GL

Certificates

CE

TÜV

GOST

SEPRO

TSE

 

Applications

AS P-308Mn can be used for welding hardenable steels (alloyed or unalloyed), Mn steels, armour plates, rail steels, stainless chromium steels, tool steels and steels with poor weldability. Building up of parts operating under impact, high pressure and cavitation; surface build up of water turbine vanes; build up of valve seats and  joining and building up of rail switches are among its usage areas. AS P- 308 Mn can also be used for forming buffer layer passes before hardfacing applications having a chromium carbide structure.

The lowest possible welding current should be selected to avoid the overheating of the electrode during welding. For hard Mn steels, weld beads should be forged.

 

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)
2.50 250 50 - 80 1590 100 1,6
3.25 300   80 - 110 3030   75 2,3
4.00 350 100 - 140 5100   45 2,3
5.00 350 140 - 160 7060   35 2,5
 

Welding Positions

 

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