Brand
Name Classification |
Description |
Typical
Weld Metal Properties |
Welding
parameters |
Applications |
Chemical
Composition (%) |
Mechanical
Properties |
Ratna
CR 1 AWS:A5.5:E 8018B2 IS:1395:E55BB226Fe Low Carbon
version also available |
A
medium heavy coated, hydrogen controlled, iron powder, all position
radiographic quality electrode to weld 1.25% Cr 0.50% Mo steel,
having increased working efficiency. Electrodes has properties of
creep resistance upto 550 °C. |
C
0.070
Mn
0.850
Si
0.460
Mo
0.520
Cr
1.200 |
U.T.S.-630N/mm2
Y.S
-500N/mm2
EL
-24.00% (L=4d) _______________ Creep Strength at 550 °C
115 N/mm2 (1% off set after 10000 Hrs) |
DC
(+)
Dia
Amps
(mm)
2.50
80-100
3.15
100-140
4.00
140-180
5.00
190-230 |
Suitable
to weld creep resistant steels like Cr - Mo pipelines and plates
used in all refinery/power plants, steam boilers, equipments subjected
at high temperatures in synthetic chemical units, repairs of caste
steel components / parts of automobiles / earth moving machineries. |
Ratna
CR 1 AWS:A5.5:E 8018B3 IS:1395:E63BB326Fe Low Carbon
version also available |
A
medium heavy coated, hydrogen controlled, iron powder type, all
position radiographic quality electrode to weld 2.25% Cr- 1.00%
Mo steel, having increased working efficiency. Electrodes has properties
of creep resistance upto 575 °C |
C
0.070
Mn
0.850
Si
0.450
Mo
1.100
Cr
2.300 |
U.T.S.-660N/mm2
Y.S
-565N/mm2
EL
-24.00% (L=4d) _______________ Creep Strength at 575 °C
80 N/mm2 (1% off set after 10000 Hrs) |
DC
(+)
Dia
Amps
(mm)
2.50
80-100
3.15
100-140
4.00
140-180
5.00
190-230 |
Suitable
to weld tensile, low alloy steels 2.25% Cr and 1% Mo used in all
refineries / power plants, steam boilers, equipments subjected at
high temperatures in synthetic chemical units repairs of caste steel
components / parts of automobiles / earth moving machineries, also
includes marine applications. |
Ratna
CR 1 AWS:A5.5:E 8018B6 IS:1395:E 41 B326Fe Low Carbon
version also available |
A
medium coated, hydrogen controlled, Iron powder type electrode producing
5% Cr-0.5% Mo deposit. Weld deposit is of radiographic quality,
highly resistant to corrosion, resistance property at elevated temp.
upto 550 °C. The finish is excellent. |
C
0.060
Mn
0.920
Si
0.420
S
0.014
P
0.016
Cr
5.200
Mo
0.500 |
U.T.S.-620N/mm2
EL
-26.00% (L=4d) _______________ Creep Strength at 550 °C
68 N/mm2 (1% off set after 10000 Hrs) |
DC
(+)
Dia
Amps
(mm)
2.50
80-100
3.15
100-140
4.00
140-190
5.00
200-240 |
Ideally
suited ub oil refinery, petrochemical industries, chemical industries,
power house applications where steels of similar compositions are
used. |
Ratna
CR 1 AWS:A5.5:E 8018B8 IS:1395:E 41 BB826Fe Low Carbon
version also available |
A
basic coated, hydrogen controlled, Iron power type electrode producing
9% Cr 1.0% Mo deposit. Weld deposit is of radiographic quality,
highly resistant to corrosion, oxidation and exhibits creep resistance
property at elevated temp. upto 600 °C. The finish is excellent. |
C
0.060
Mn
0.620
Si
0.410
S
0.014
P
0.015
Cr
9.000
Mo
1.000 |
U.T.S.-630N/mm2
EL
-25.00% (L=4d) _______________ Creep Strength at 600 °C
80 N/mm2 (1% off set after 10000 Hrs) |
DC
(+)
Dia
Amps
(mm)
2.50
80-100
3.15
100-140
4.00
140-190
5.00
200-240 |
Ideally
suited in oil refinery, petrochemical industries, chemical industries,
power house applications where steels of similar compositions are
used, for welding 7-10% Cr-1% Mo Steels and castings of similar
compositions. |