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RATNA 320 (AWS A5.4: E 320-16)

Product Specification

A fully austenitic stainless steel electrode for reduce the fissuring encountered in weld

CLASSIFICATION    :   AWS/SFA-5.4: E 320-16

CHARACTERISTICS     : A fully austenitic stainless steel electrodes weld metal is 20 Cr, 34 Ni, 2.50 Mo, 3.50 Cu with Nb added to improve resistance to inter-granular corrosion. These alloying are primarily used to weld base metals of similar composition for applications where resistance to severe corrosion is required.

 

APPLICATION               :

1)      Suitable for a wide range of chemicals including sulfuric and sulfurous acids and their salts.

2)      Welding can be used to weld both castings and wrought alloys.

3)      Materials to be welded, ASTM A351.A 744 Grade CN-7M, BS 1504-332 C 11

Carpenter 20, 20cb, 20 cb-3 and similar properties alloys.

 

RE-DRY CONDITION      : Re-Dry the electrode at 350°C for 1 hrs before use.

ALL WELD CHEMICAL COMPOSITION %

C

Mn

Si

S

P

Cr

Ni

Cu

Mo

Nb

 

0.07max

0.50-2.50

0.60

0.030

0.040 

19.00-21.00

32.00-36.00

3.00-

4.00

   2.00

3.00

8 x C min. to 1.0 max

 

 single value maximum 

ALL WELD MECHANICAL PROPERTIES (As Welded):

UTS

(N/mm2)

EL %

(l=5d)

550 Min.

30 Min.

 

DIEMENSION, CURRENT CONDITION & PACKING DATA       

Size(mm)

(Dia)

Size(inch)

(Dia)

Current Condition

(DC+/AC) Amps

Kg / packet.

Kg / case.

2.50/ 2.40 X 350

3/ 32” X 14”

70-100

         2

20

3.15/ 3.20 X 350

1/ 8” X 14”

90-130

         2

20

4.00 X 350

5/ 32” X 14”

120-160

         2

20

5.00 X 350

3/ 16” X 14”

160-200

         2

20

Customer packing on request.

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