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

Product Specification

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

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

CHARACTERISTICS     : A low carbon fully austenitic stainless steel electrode gives weld metal with Si, P and S are specified at lower maximum levels, and Nb and Mn are controlled within narrower. These change reduce the weld metal fissuring frequently encountered in fully austenitic stainless steel weld metals.

 

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.

4)  Typically used to ferrite-containing austenitic stainless steel.

 

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

Cb

 

0.03 max

1.50-2.50

0.30

 Max

0.00 Max

0.040 Max

19.00-21.00

32.00-36.00

3.00-

4.00

   2.00

3.00

0.24-0.40

 

 

ALL WELD MECHANICAL PROPERTIES (As Welded):

UTS

(N/mm2)

EL %

(l=5d)

520 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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