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RATNA CR 9 (AWS A5.5 E8018 B8)

Product Specification

Hydrogen controlled iron powder Electrode for welding Creep-Resistant 9Cr-1Mo steels.

CLASSIFICATION         : AWS/SFA5.5: E 8018 B8
                                           IS-1395:E41 BB 826Fe

CHARACTERISTICS    : A basic coated, hydrogen controlled, iron powder type electrode, producing 9% Cr / 1.0% Mo deposit. Weld deposit is of radiographic quality, highly resist to corrosion, oxidation and exhibits creep resistance property at elevated temp. up to 600°C. The finish is excellent.

APPLICATION              :
1) Ideally suitable for oil refinery petrochemical industries, chemical industries.
2) Power house applications where steels of similar compositions are used.
3) For welding 7-10% Cr 1% Mo steels and castings of similar compositions.

RE-DRY CONDITION     : Re-Dry the electrode at 250°C for 1 hrs before use.


ALL WELD CHEMICAL COMPOSITION %
       
C Mn Si S P Cr Mo
0.05-0.10 1.00 Max 0.60 max 0.030 Max 0.030 Max 8.00-10.50 0.85-1.20
 

ALL WELD MECHANICAL PROPERTIES :
       
YS
(N/mm²)
UTS
(N/mm²)
EL %
(l=4d)
460-580 550-680 20-28
 

DIMENSION, CURRENT CONDITION & PACKING DATA
       
Size(mm) (Dia) Size(inch) (Dia) Current Condition (DC+)Amps No. of Pcs./pkt. No. of Pcs./Case
2.50/ 2.40 X 350 3/ 32” X 14” 60-80 170 640
3.15/ 3.20 X 450 1/ 8” X 14”/ 18” 100-130 110 440
4.00 X 450 5/ 32” X 18” 140-180 72 288
5.00 X 450 3/ 16” X 18” 190-240 50 200
Customer packing on request.
 
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