Sales Hotline: +86-22-24997375
J421 (J38.12)

GB/T 5117 E4313
AWS A5.1 E6013
 
 

Introduction:

J421 is rutile-based carbon steel electrode. It has very good welding usability that enables it to perform all-position welding, operates on AC/DC, removal of slag is easy, has stable arc and also has very good bead appearance. It is easy to operate, which makes re-striking the arc easy.

 

Uses:

It is suitable for welding structures made of low carbon steel, performs very well in welding thin and small size steel plates and also has very good performance in the situation that requires nice and clean bead appearance.

 

Chemical Composition (%)

Chemical Composition

C

Mn

Si

S

P

Ni

Cr

Mo

V

Guarantee Value

≤0.20

≤1.20

≤1.00

≤0.035

≤0.040

≤0.30

≤0.20

≤0.30

≤0.08

General Result

0.079

0.38

0.21

0.018

0.024

0.020

0.032

0.005

0.010

 

Mechanical Properties of Deposited Metal

Test Item

Rm (N/mm2)

Rel (N/mm2)

A (%)

KV2(J) 0℃

Guarantee Value

≥430

≥330

≥16

≥47

General Result

485

380

28.5

86

 

Reference Current (DC)

Diameter

φ2.0 

φ2.5

φ3.2

φ4.0

φ5.0

Amperage

40 ~ 70

50 ~ 90

90 ~ 130

130 ~ 210 

170 ~ 230

 

Welding Positions: