Brand
Name Classification |
Description |
Typical
Weld Metal Properties |
Welding
parameters |
Applications |
Chemical
Composition (%) |
Mechanical
Properties |
| Ratna
308
AWS:A5.4:E
308-16
IS:5206:E
19.9R16
|
A
low carbon 19/10 stainless steel electrode with properties like
oxidation and corrosion resistance, resistance to cracking. The
weld deposit has excellent strength and is of radiographic quality.
The electrode gives smooth finish, spatter free arc and self peeling
slag. |
C
00.050
Mn
01.300
Si
00.400
Cr
19.000
Ni
09.800
|
U.T.S.-590
N/mm2
El.
- 40.20 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.00
40-60
2.50
50-80
3.15
70-100
4.00
100-140
5.00
140-180
|
Suitable
for joining AISI 301, 302, 304 and 308 steels having 18 Cr / 8 Ni.
Welding hospital apparatus, house hold articles, components / equipments
used in petro-chemical, chemical and fertilizer industries. |
| Ratna
308 L
AWS:A5.4:E
308L-16
IS:5206:E
19.9LR16
|
An
extra low carbon 19/10 stainless steel electrode with properties
like resistance to oxidation, resistance to cracking at high temperature.
The extra low carbon decreases the possiblity of intragranular corrosion.
The electrode gives smooth arc, fine bead appearance and shiny finish. |
C
00.029
Mn
01.300
Si
00.400
Cr
19.300
Ni
09.700
|
U.T.S.-570
N/mm2
El.
- 41.00 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.00
40- 60
2.50
50- 80
3.15
70-100
4.00
100-140
5.00
140-180
|
Suitable
for joining AISI 301L, 302L, 304L and 308L steels having 18 Cr /
8 Ni with low carbon content. Welding utensil, dairy machineries/
components / equipments used in petrochemical, chem-ical & fertilizer
industries. |
| Ratna
308 H
AWS:A5.4:E
308H-16
IS:5206:E
19.9R16
|
An
electrode specially designed for producing 19 Cr-10 Ni weld deposit
with carbon 0.04-0.08%. Weld metal is resistant to crack and exhibits
excellent mechanical proper-ties at elevated temperature. The welds
produced are of radiographic quality with exotic bead finish. |
C
00.060
Mn
01.400
Si
00.400
Cr
19.500
Ni
10.000
|
U.T.S.
- 600N/mm2
El.
- 38.00 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.00
40-60
2.50
50-80.
3.15
70-100
4.00
100-140 5.00 140-180
|
Suitable
for joining AISI 304 H material. Ideally suitable for joining 18/8
stainless steels consisting higher carbon percentage in the range
of 0.04 - 0.08%. |
| Ratna
309
AWS:A5.4:E
309-16
IS:5206:E
23.12R16
|
A
rutile type, all position electrode giving 24/12 deposit with excellent
resistance to chemical corrosion and heat corrosion. Gives stable
arc, low spatter, smooth weld profile, easily removable slag. The
weld deposit is of radiographic soundness and withstands temperature
upto 1100o C. |
C
00.050
Mn
01.550
Si
00.440
Cr
23.700
Ni
12.600
|
U.T.S.-600
N/mm2
El.
- 38.50 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.50
50-80
3.15
70-100
4.00
100-140
5.00
140-180
|
Suitable
for welding 24/12 stainless steel grades of AISI 309. Welding stainless
steel to carbon steel and low alloy steels, for overlaying mild
steel for increasing wear resistance properties, clading on 18/8
clad steels. |
| Ratna
309 L
AWS:A5.4:E
309L-16
IS:5206:E
23.12LR16
|
An
extra low carbon, all position electrode giving 24/12 deposit with
excellent resistance to chemical corrosion, corrosion at elevated
temperatures and oxidation. Gives stable arc, low spatter, smooth
weld profile, easily removable slag. The weld deposits are radio-graphically
sound. |
C
00.027
Mn
01.550
Si
00.480
Cr
23.700
Ni
12.800
|
U.T.S.-590
N/mm2
El.
- 39.20 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.50
50-80
3.15
70-100
4.00
100-140
5.00
140-180
|
Suitable
for welding 24/12 stainless steel grades of AISI 309L. Welding stainless
steel to carbon steel and low alloy steels, for overlaying on mild
steel for increasing wear resistance properties, clad side of 18/8
clad steels, cast materials and on similar composition steels. |
| Ratna
309 Cb
AWS:A5.4:E
309Cb-16
IS:5206:E
23.12Nb R16
|
A
rutile type, all position electrode giving weld metal of 25/12 Columbium
stabilsed deposit. The weld metal withstands temperature upto 1100o
C. Electrode is resistant to chemical corrosion and heat. Gives
stable arc, fine rippled bead appearance and easy slag detachability. |
C
00.050
Mn
01.500
Si
00.400
Cr
23.600
Ni
12.900
Cb
00.780
|
U.T.S.
- 600N/mm2
El.
- 34.00 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.50
60 - 80 3.15 80 -110 4.00 110 -140 5.00 140 -180
|
Suitable
to weld stainless steel with 25/12 Columbium stabilised steels,
straight chrome steels, overlaying on carbon steel for improving
wear resistance. Welding mild steel to stainless steel. |
| Ratna
309 Mo
AWS:A5.4:E
309Mo-16
IS:5206:E
23.12.2R16
|
A
rutile type all position electrode giving 25/12/2.5 (Cr/Ni/Mo) weld
deposit with increased tensile strength and corrosion resistance
properties. Gives smooth and rippled bead, low spatter, stable arc,
easily detachable slag coupled with resistance to chemical corrosion
and heat. |
C
00.055
Mn
01.520
Si
00.450
Cr
23.600
Ni
12.950
Mo
02.450
|
U.T.S.
-595 N/mm2
El.
- 34.20 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.50
60- 80 3.15 80-110 4.00 110-140 5.00 140-180
|
Suitable
to weld dissimilar steels like carbon steel to stainless steel with
Mo. Welding 316 type clad steel AISI 309 Mo steel and to weld difficult
to weld steels. |
| Ratna
310
AWS:A5.4:E
310-16
IS:5206:E
25.20R16
|
A
rutile type, all position electrode made of core wire 25Cr/20Ni
to have deposits of 25Cr/20Ni. The electrode is specially designed
for oxidation and scaling resistance at elevated temperatures at
1200o C with excellent weld metal finish, low spatter and easily
removable slag deposit. |
C
00.095
Mn
02.150
Si
00.450
Cr
26.400
Ni
21.300
|
U.T.S.
-610 N/mm2
El.
- 34.00 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.50
50-80 3.15 70-100 4.00 100-140 5.00 140-180
|
Suitable
for welding AISI 310 type steel, clad side of claded steels, high
temperature furnace parts, gas turbine cumbustion chambers, hard-enable
steels and dissimilar steels. |
| Ratna
316
AWS:A5.4:E
316-16
IS:5206:E
19.12.2R16
|
A
low carbon, 18 Cr/12 Ni/2.3 Mo stainless steel electrode with resistance
to corrosion, cracking and heat. The weld metal has excellent creep
resistance strength, welds are of radiographic quality and resistant
to chemical corrosions. The bead appearance is fine and rippled. |
C
00.045
Mn
01.350
Si
00.440
Cr
18.500
Ni
12.400
Mo
02.280
|
U.T.S.
-560 N/mm2
El.
- 36.80 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.00
40-60 2.50 50-80
3.15
70-100
4.00
100-140
5.00
140-180
|
Suitable
to weld 18/8/Mo steels such as 316/317 type, fabrication fo stainless
steel tanks used in textile, chemical, pulp and paper industries.
Corrosion resistance applica-tions such as tanks fabrication for
storage of phosphoric acid, acetic acid and sulphuric acids. |
| Ratna
316 L
AWS:A5.4:E
316L-16
IS:5206:E19.12.2L
R 16
|
An
extra low carbon, rutile coated, 18/12/2.3 Mo stainless steel electrode
with excellent resistance to corrosion, heat and cracking. The weld
metal has properties of creep resistance and is of radiographic
quality with stable and smooth arc, easy slag detachability and
almost spatter free welding. |
C
00.028
Mn
01.300
Si
00.450
Cr
18.300
Ni
12.400
Mo
02.300
|
U.T.S.
-555 N/mm2
El.
- 37.50 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.00
40-60 2.50 50-80 3.15 70-100
4.00
100-140
5.00
140-180
|
Suitable
for AISI 316L & 317L grades of stainless steels, chemical industries,
dyes and paint industries, petrochemi-cal, pharmaceutical and fertilizer
industries. |
| Ratna
316 LF
AWS:A5.4:E316L-16
(Nr.)
IS:5206:E19.12.2L
R 16
(Nr.)
|
An
extra low carbon, rutile coated, 18/12/2.3 Mo stainless steel electrode
with controlled ferrite content 2 % max., resistant to corrosion
and cracking. The weld metal is creep resistant and of radiographic
quality with stable and smooth arc, easy slag detachability and
spatter free welding. |
C
00.020
Mn
01.650
Si
00.440
Cr
17.800
Ni
14.500
Mo
02.450
|
U.T.S.
-560 N/mm2
El.
- 38.00 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.50
60-80
3.15
80-110
4.00
110-140
5.00
140-180
|
Suitable
to weld AISI 316 and 316L steels where ferrite content in weld deposit
is restricted to less than 2 % and for corrosion resistance applications. |
| Ratna
36 Cb
AWS:A5.4:E
318-16
IS:5206:E19.12.2Nb
R16
|
A
ferrite controlled, low carbon, 18/13 Mo Nb electrode. Weld deposit
is resistant to intragra-nular corrosion cracking, resis-tant to
pitting. The electrode gives smooth arc, fine and rippled bead appearance
and easy slag detachability. |
C
00.030
Mn
01.420
Si
00.420
Cr
18.500
Ni
12.200
Mo
02.400
Cb
00.640
|
U.T.S.-565
N/mm2
El.
- 36.80 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.50
50-80
3.15
80-100
4.00
100-140
5.00
140-180
|
Suitable
for welding on Niobium and Titanium based stainless steels, applications
are mainly found in chemical paints, bleaching industries, pickling
plants, joining stainless steel to similar compositions. |
| Ratna
317 L
AWS:A5.4:E
317L-16
IS:5206:E
19.12.3R26
|
An
extra low carbon, 19/13/Mo stainless steel electrode with controlled
ferrite content of 4-10.00 % for resisting stress corrosion cracking,
chemical corrosion at elevated temperature. The weld metal has creep
resistance strength and is of radiographic quality. Gives fine bead
and easy slag detachability. |
C
00.028
Mn
01.280
Si
00.440
Cr
19.500
Ni
12.850
Mo
03.250
|
U.T.S.
- 585N/mm2
El.
- 38.20 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.50
50-75 3.15 80-100 4.00 110-140 5.00 150-180
|
Suitable
for welding where stainless steel exceptional corrossion resistance
against inorganic acids such as Sulphuric, Phosphoric , Halogen
etc. is required suitable for welding similar steel & AISI 316L |
| Ratna
347
AWS:A5.4:E
347-16
IS:5206:E
19.9NbR16
|
A
low carbon, 19 Cr-10Ni-Cb stainless steel electrode depositing stabilised
weld metal. Weld metal offers excellent resistance to intragranular
corrosion. Electrode gives smooth arc, easy slag detachability and
is almost spatter free with fine finish weld deposit. |
C
00.040
Mn
01.300
Si
00.420
Cr
18.800
Ni
10.000
Cb
00.620
|
U.T.S.
- 590N/mm2
El.
- 35.20 %
(L=4d)
|
AC/DC(
+ )
Dia
Amps
(mm)
2.50
60-80 3.15 80-110 4.00 110-140 5.00 140-180
|
Ideally
suited for welding stainless steel confirming to AISI 304, 304L,
321, 347 and their equivalents used in fertilizer, pertrochemical,
chemical, and pharmaceutical industries. |
| Ratna
347 L
AWS:A5.4:E
347-16
IS:5206:E19.9
LNbR16
|
An
extra low carbon, 19 Cr-10Ni-Cb stainless steel electrode depositing
stabilised weld metal offering excellent resistance to intragranular
corrosion. Electrode gives smooth arc, easy slag detachability and
is almost spatter free with fine finish. |
C
00.028
Mn
01.320
Si
00.440
Cr
18.800
Ni
10.100
Cb
00.640
|
U.T.S.
-585 N/mm2
El.
- 36.40 %
(L=4d)
|
AC/DC(+)
Dia
Amps
(mm)
2.50
60-80
3.15
80-110
4.00
110-140
5.00
140-180
|
Ideally
suited for welding stabilised and unstabilised low carbon grades
of 18/8 type stainless steels. Applications found mainly in fertilizer,
chemical, pertro-chemical and pharmaceutical industries. |
| Ratna
13 Cr
AWS:A5.4:E
410-15
IS:5206:E13R10
|
A
hydrogen controlled electrode for welding ferritic martensitic chrome
steels, hardening effect can be avoided by pre-heating the job and
later stress releaving process. An all position electrode, giving
fine and rippled bead, easy slag removability, weld deposit contains
13 Cr. |
C
00.075
Mn
00.560
Si
00.600
Cr
12.700
Ni
00.300
|
U.T.S.
-540 N/mm2
El.
- 25.40 %
(L=4d)
|
DC(
+ )
Dia
Amps
(mm)
2.50
60-80 3.15 90-120 4.00 130-170 5.00 180-210
|
Suitable
for trubine construc-tion, joining chrome steels to cast steel,
oil refinery equip-ments, corrosion and heat resistance applications,
steel castings, valves seat resurf-acing, joining straight chrome
stainless steels, joining AISI 405, 410, 414, 420 stainless steel. |
| Ratna
17 Cr
AWS:A5.4:E
430-15
IS:5206:E17R10
|
An
all position, hydrogen controlled electrode specially designed to
join AISI 430 grade stainless steels. Weld deposit exhibits 17 Cr
deposit and is of radiographic quality. The bead is fine and rippled
in appearance. Welded joints should undergo post and pre-heat treatment
to achieve desired properties. |
C
00.080
Mn
00.600
Si
00.580
Cr
16.800
Ni
00.320
|
U.T.S.
- 500N/mm2
El.
- 23.80 %
(L=4d)
|
DC(
+ )
Dia
Amps
(mm)
2.50
60-80 3.15 90-120 4.00 130-170 5.00 180-210
|
Suitable
for welding AISI 430 & 431 stainless steel and steels with higher
or lower chromium content. Equip-ments in oil refineries, chem-ical,
food, beverage indus-tries, surfacing of impellers, turbine blades,
corrosion and heat resistance applications. |