CLASSIFICATION & CODING
- AWS : E-312
- AWS Specification : AWS A / SFA 5.4
- CLASSIFICATION : E 29 9 R 12
DESCRIPTION
Rutile type medium heavy coating.
30 /10 type SS deposit.
High strength weld with excellent resistance to cracking , fissuring and oxidation.
Low spatter, Smooth weld bead
Easy slag detachability.
Radiographic quality weld.
AVAILABILITY :
Standard Size : 4.0 , 3.15 , 2.50 in 350 mm length. Packing : 2.0 kg each and master box 10.0 kg.
APPLICATION
Welding difficult to weld steels ex. High C hardenable tool, die and spring steels, 13 % Mn steels, free cutting steels, high temperature steels, cast steels, Dissimilar joints between stainless and high carbon steels and unknown steels.
ALL WELD METAL CHEMICAL COMPOSITION ( Typical ) :
Carbon%
0.07
Manganese%
1.50
Silicon%
0.5
Chromium%
29.5
Nickel%
9.8
Sulphur%
0.02
Phosphorous%
0.02
ALL WELD METAL MACHENICAL PROPERTIES ( Typical ) :
UTS (MPa)
700-860
% Elong. (L=4Xd)
22.0
CURRENT & CONDITIONS : USE AC ( 70 OCV ) OR DC ( + )
SIZE (mm) :
2.50x350
3.15x350
4.00x350
CURRENT ( amp ) :
80-100
110-140
150-180
REDRYING CONDITIONS
250 - 300 Deg C for one hour.