WELDFAST SERIES
STAINLESS STEEL TO COMBAT CORROSION OXIDATION & HEAT
 
WELDALLOY 308 WELDALLOY 318 WELDALLOY 430
WELDALLOY 347 WELDALLOY 310    
WELDALLOY 316 WELDALLOY 410    
 
Product Name / Specification
Characteristics
Useful Welding Technique Technical Data Principal App. Areas
WELDALLOY 308
Extra Low Carbon Stainless Steel Electrode.
WELDALLOY 308 deposits are of extra low carbon
type which minimises carbide precipitation and
eliminates resultant intergranular corrosion attack. The controlled ferrite gives high crack resistance during solidification of weld.
Since high quality corrosion resistance is the requirement ensurance of cleanliness of weld joint and weldmetal is of utmost importance. Small details like use stainless steel wire brush give improved results from corrosion point of view.
Tensile Strength (Typical) : 55 Kgf/mm2
Elongation : 35%
For welding of stainless steel types 301, 302, 304, 304-L, 308 used in food processing industry, breweries, hospital equipment and in chemical plants.
Product Name / Specification
Characteristics
Useful Welding Technique Technical Data Principal App. Areas
WELDALLOY 347
Stabilized Low Carbon Stainless
Steel Electrode.
WELDALLOY 347 has extra low carbon deposits having suitable stabilisers and optimum chromium nickel ratio, outstanding resistance to cracking, weld decay corrosion and pitting.
For best results clean the surface to be welded thoroughly. Use short arc and stringer bead technique.
Tensile Strength (Typical) : 55 Kgf/mm2
Elongation (Typical) : 35%
WELDALLOY 347 is ideally suited for welding 301, 302, 304, 304-L, 308, 308-L, 321 and 347 AISI grades of
stainless steels which find frequent applications in dairy food processing, paper, pigments and paint
industries in addition to chemical and oil refining industries.
Product Name / Specification
Characteristics
Useful Welding Technique Technical Data Principal App. Areas
WELDALLOY 316
For Extra Low Carbon Molybdenum Bearing Deposit.
WELDALLOY 316 is an all position rutile coated electrode giving a very smooth and fine rippled bead. Slag control and removal is very easy. The weldmetal has exceptional resistance to pitting
corrosion.
Clean area to be welded thoroughly of any surface contamination. Use low current short arc and stringer bead to minimise distortion.
Tensile Strength (Typical) : 55 Kgf/mm2
Elongation (Typical) : 30 %
WELDALLOY 316 is ideally suited for welding of AISI 316 L and 317 grades. Extensively used in
petrochemical, pharmaceuticals, textile and paper
industries.
Product Name / Specification
Characteristics
Useful Welding Technique Technical Data Principal App. Areas
WELDALLOY 318
For Stabilised Extra Low Carbon
Molybdenum Bearing Deposit.
WELDALLOY 318 deposit containing extra low carbon and suitable stabiliser offer exceptional
resistance to intergranular corrosion especially in highly reducing conditions..
Clean area to be welded thoroughly of any contamination. Use short arc and stringer bead technique.
Tensile Strength (Typical) : 55 Kgfmm2
Elongation : 30%
WELDALLOY 316 is ideally suited for welding of AISI 316 L and 317 grades. Extensively used in
petrochemical, pharmaceuticals, textile and paper industries.
Product Name / Specification
Characteristics
Useful Welding Technique Technical Data Principal App. Areas
WELDALLOY 310
Electrode for Excellent Oxidation, Corrosion and Heat Resistance.
WEDLALLOY 310 is a basic coated all position electrode. The deposit has excellent resistence to heat, oxidation and corrosion. It is also useful for
making dissimilar joints in various grades of steels
including high hardenability steels.
Weld on a clean uncontaminated surface. Use as low welding current as possible, use short arc and
stringer beads, keep interpass temperature as low
as possible.
Tensile Strength (Typical) : 60 Kgf/mm2
Elongation : 40 %
The exceptionally high resistance to heat and
oxidation makes it immensely suitable for
fabricating furnaces components, burners, heat treatment pots and baskets and also for joining straight chromium high hardenability steels, carbon molybdenum and chromium molybdenum piping
etc.
Product Name / Specification
Characteristics
Useful Welding Technique Technical Data Principal App. Areas
WELDALLOY 410
Electrode for Straight Chromium Steel.
WELDALLOY 410 is an electrode giving smooth,
evenly rippled x-ray quality deposit. The weld deposit is resistance to corrosion, oxidation and frictional wear.
Thoroughly clean the area to be welded. Use as low current as possible to distribute heat during
welding. Preheat straight chrome stainless steel upto 200°C and maintain interpass temperature.
For optimum mechanical properties, it is tempered at a temperature of 580°C-620°C for four hours and cool the component at slower rate.
Tensile Strength (Typical) : 65 Kgf/mm2
Elongation (Typical) : 25%
WELDALLOY 410 finds use in welding 13%
chromium steels, salvaging pumps valve seat and wedges, shafts operating at higher temperature and
also for overlaying cast iron.
Product Name / Specification
Characteristics
Useful Welding Technique Technical Data Principal App. Areas
WELDALLOY 430
Electrode for Welding 17% Chromium Steel
WELDALLOY 430 is a basic coated electrode for welding all grades of steels where high strength
with heat resistance is an important factor.
WELDALLOY 430 is very much suitable for welding 17% chromium steel components. It is also ideal for welding straight chrome steel such as AISI grades 405, 410, 430. WELDALLOY 430 is immensely suitable for surfacing valve seats and
wedges, overlaying cast iron, hot dies, pumps and many components working at high temperature.
Tensile Strength (Typical) : 75 Kgf/mm2
Elongation (Typical) : 20%
Thoroughly clean the area to be welded. Use as low current as possible to distribute heat. For successful
welding preheat and maintain inter pass
temperature to about 250°C. Ensure suitable heat treatment immediately after welding.
 
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