Though Cr-Mn austenite steel containing silicon and vanadium is a steel which can be used for 18-8 Cr-Ni austenite steel, ist weidability has not yet been studied.
The authors studied the effects on the weldability of Cr-Mn austenite steel and also those on composition and structure of welded joints, exerted by various materials, commonly used in coating, such as CaF
2, CaCO
3, MnO
2, MnCO
3, TiO
2, Na-titanate, K
4[Fe(CO)
3], starch and ferro-mmanganese, useing welding rod of following composition ;
0.44% C, 0.71% Si., 16.16% Mn, 11.12% Cr and 0.72% V.
After many experiments the authors select the following as abest coating ;
28.6% CaF
2, 21.4% CaCO
3, 10% MnO
2, 10% Na-titanate, 2% starch, 10% ferro-manganese, 5% K
4[Fe(CO)
6] and 13% wateraglass.
Cr-Mn steel plates containing 0.20% C, 1.22% Si, 17.60% Mn, 13.18% Cr and 0.66% V are arc welded under different conditions by using welding rod.
Tensile, hardness and macao-structural tests of the welded joints prepared as above was undertaken.
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