Stainless steel electrodes MMA

Category:

Description

Name electrode

standard

Ø mm

Current(A)

Chemical analysis(%)

Mechanical properties
(AW/KS)

Current, polarity, welding positions.
EL 307

AWS/ASMESFA 5.4

E 307-15

2,50

70-120

C

0,13

Yield strength(N/mm2)


EN 1600

E 18 8 Mn B22

3,25

130-150

Si

0,50

Tensile strength Rm (N/ mm2)

650

DIN 8556

E 18 8 MnB20

4,00

150-170

Mn 5

Ni 9

Elongation A5 (%)

35

5,00

180-190

Cr

19,00

Impact energy (ISO-V) (J)

20˚C:70 J

Rutile coated electrode for joining dissimilar steels and depositing claddings on ferritic steels. The weld metal consists of austenitic Cr-Ni-Mn steel with possible small amounts of delta ferrite. The weld metal is highly crack resistant and therefore suited for joining difficult to weld steels and depositing stress relaxing buffer layers on crack sensitive base metal prior to hardfacing deposits. Weld metal work hardens by impact and pressure. Suitable for armour plates, high-manganese steels, rails, cross-overs, crane wheels, idlers, which are subjected to dynamically loading, pressure, impact and abrasion. It is non-scaling up to +850°C and highest operating temperature for dissimilar steel joints is +300°C. In the case of higher temperatures, use ENI 422 electrodes. Easy to use in positional welding and possible to use equally well both win AC and DC.
El 308 L
AWS/ASME SFA5.4

E 308 L – 16

2,00

30-50

C

<0,04

Yield strength (N/mm2)


EN 1600

E 19 9 LR 12

2,50

45-70

Si

0,70

Tensile strength Rm (N/mm2)

600

DIN 8556

E 19 9 LR 26

3,25

70-120

Mn

0,80

Elongation A5 (%)

38

4,00

110-150

Cr

19,0

Impact energy (ISO-V) (J)

20˚C:70 J

5,00

160-230

Ni

10,0

Electrode for welding austenitic stainless Cr-Ni steels or cast steels, having an extra low carbon content, as well as stainless or heat resisting chromium steels or cast steels. Suitable for welding stainless steel tanks, valves, pipes and linings in chemical, food, beverage, pharmaceutical industries. For operating temperatures of up to +350°C, non-scaling up to +800°C. Possible to use equally well both with AC and DC. Easy arc striking and re-striking. Fine metal droplet transfer, good fusion of joint faces, finely rippled bead surface, easily removable slag.
El 310

AWS/ASME SFA5.4

E 310 – 16

2,00

35-45

C

<0,10

Yield strength (N/mm2)


EN 1600 E 25 20 R 12

2,50

50-60

Si

0,40

Tensile strength Rm (N/mm2)

580

DIN 8556 E 25 20 R 26

3,25

80-100

Mn

1,40

Elongation A5 (%)

35

4,00

110-140

Cr

25,0

Impact energy (ISO-V) (J)

20˚C:70 J

5,00

150-180

Ni

20,0

Rutile type stainless steel electrode for welding heat resisting chromium and chromium-nickel steels as well as cast steels. Weld metal deposit is fully austenitic stainless steel, containing 25% chromium and 20% nickel. Suitable for welding heat treatment and industrial furnaces and equipments which are subjected to service temperatures up to +1200°C. Weld metal is non-scaling up to +1250°C. Especially it is resistant to hot crack. Exhibits high charpy impact energy at low temperatures. Weld metal is not corrosion resistant to sulphurous combustion gases. Possible to use equally well both with AC and DC.
El 312
AWS/ASME SFA5.4 E 312 – 16

2,00

35-60

C

0,10

Yield strength (N/mm2)



EN 1600 E 29 9 R 12

2,50

55-85

Si

0,90

Tensile strength Rm (N/mm2)

810

DIN 8556 E 29 9 R 26

3,25

80-120

Mn

1,00

Elongation A5 (%)

24

4,00

110-150

Cr

29,0

Impact energy (ISO-V) (J)

20˚C:50 J

5,00

160-200

Ni

10,0

Rutile type stainless steel electrode for joining dissimilar steels and depositing claddings on ferritic steels. The ferritic-austenitic Cr-Ni weld metal contains approximately 50% of delta-ferrite and is non-scaling up to +1100°C. It features high resistance to cracking and is therefore suited for joining difficult to weld steels and depositing stress-relaxing buffer layers on crack sensitive base metals. Especially used in crack repair and build-up of tool and die steels, rebuilding of worn or cracked gear teeth, buffer layer on cutting blades. Suitable for welding galvanized steel plates. Possible to use equally well both AC and DC. Easy arc striking and re-striking. Fine metal droplet transfer, good fusion of joints faces, finely rippled bead surface, easy slag removal.
EL 318
AWS/ASME SFA5.4 E 318 – 16

2,00

30-50

C

0,04 Yield strength(N/mm2)


EN 1600 E 19 12 3 Nb R 32

2,50

50-85

Si

0,70 Tensile strength Rm (N/ mm2)

570

DIN 8556 E 19 12 3 Nb R 26

3,25

70-125

Mn

0,80 Elongation A5 (%)

35

4,00

110-165

Cr 19

Ni 12 Impact energy (ISO-V) (J)

20˚C:70 J

5,00

160-230

Mo2,5

Nb0.35
Rutile type stainless steel electrode for welding stabilized austenitic stainless Cr-Ni-Mo steels and cast steels. For operating temperatures up to +400°C. Suitable for welding of stainless steel tanks, valves and pipes in chemical, textile, paint and paper industries. Possible to use equally well both with AC and DC. Easy arc striking and re-striking. Fine-droplet metal transfer, good wash-in of joint sides, easily removable slag.

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