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Home » Products » Low Hydrogen Electrode » Premium 7018S

Premium 7018S

Premium 7018S
Premium 7018S
Product Code : 29
Product Description

Classification :

  • IS : 814 - 2004 : EB 5426 H3 JX
  • AWS/A 5.1 : E 7018-1

Description :

A iron powder, low hydrogen type electrode producing a tough and ductile weld metal for welding heavy and rigid structures subjected to dynamic loading and impact. The weld metal is of radiographic quality and displays remarkable impact strength even at minus 46oC. Metal recovery is approx. 115%. Typical hydrogen content in weld-metal is 4 ml/100 gms.

Applications:

Welding of Carbon Steels

Pressure Vessels

Hardenable low alloy steels

Heavy and rigid structures

Equipment subjected to severe stress and dynamic loading

Equipment requiring good toughness properties at subzero temp. down to -46oC.

Chemical Composition of Weld Al (wt.%)

C

Mn

Si

S

P

0 - 0.10 max

1.3 – 1.6

0.6 max

0.03max

0.03 max

Mechanical Properties Of Weld Metal :

YS

46 - 52 Kgf/mm2

UTS

55 - 66 Kgf/mm2

Elongation

26 % min

Reduction in Area

55% min.

CVN Impact Value

3 Kgf.m (Min)at -46oC 30 Joules

Current Conditions : AC (50V) / DC ( + )

Size (mm)

2.5 x 350

3.15 x 450

4 x 450

5 x 450

Amps

70 - 100

100 - 140

140 - 180

180 - 240

Welding Positions : F, H, V-up, OH

Recommendation :

Retry electrodes at 350oC for one hour or at 250oC for two hours. Keep the re-dried electrodes in an holding oven having 70o-100oC temperature and use electrodes directly from holding oven. Control interpass temp.


APS Advert International Pvt. Ltd.

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