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Electrode for Welding Cast Iron Machinable & Non Machinable
SAITRON 800 NM SAITRON 850 SAITRON 860
SAITRON 870 SAITRON 890  
SAITRON 800 NM
Description:
SAITRON 800 NM is a non machinable low heat input electrode for welding of cast iron. It is best choices for surface preparation of cast iron to give subsequent layers with Nickel and Ferro-Nickel electrode. Electrode burning with strong arc force and deposit weld of spray type is very much useful to seal the cast iron.
 
Applications:
It is highly suitable for surface preparation of cast iron to give subsequent layers with Nickel and Ferro-Nickel electrode. It is used to seal foundry defects etc. weld deposit is non-machinable.
 
Note on Usage:
Before welding remove oil and grease. Clean weld area by grinding to remove cracks or worn fatigued surface of components. Use electrode on AC/DC+ at the lowest amps. Deposit short, stringer beads with short arc. Electrode can be weaved 1.5 to 2 times its diameter. Deposit in short weld beads about 25mm to 50mm with frequent interruptions to allow cooling to take place. Peen deposits while hot, after each pass, to limit the internal stresses of the base metal. Preheat is usually not necessary unless very heavy sections are involved. In some cases preheating to 3000C and slow cooling is recommended. After welding is completed job should be cooled slowly with even rate, cover with mineral blankets, or with warm dry sand or lime.
 
Sizes and Recommended Current Range (AC or DC+)
Diameter (mm) 2.50 3.15 4.0
Current (Amps) 60-85 80-120 120-150
SAITRON 850
Description:
SAITRON 850 is a basic coated low heat input Ferro-Nickel all position electrode for welding of cast iron, and joining of cast iron to steels. The weld deposit is highly crack resistant. Smooth welding arc with less spatter. Weld deposit provide good level of strength, toughness and machinability. Good weld joints in Grey, Malleable, Nodular or Spheroidal cast iron and some alloy cast irons. Suitable for use on both AC and DC -/+.
 
Applications:
It is highly suitable for repair and fabrication of cast iron housings, blocks, machinery parts, frames, casting defects, repair of cracks, etc. It also suitable for joining application of cast irons to carbon steels. Used on machine beds, pump casings, valve bodies, valve flanges, bell housings, motor covers, friction press discs etc.
 
Note on Usage:
Before welding remove oil and grease. Clean weld area by grinding to remove cracks or worn fatigued surface of components. Use electrode on AC/DC-/+ at the lowest amps. Deposit short, stringer beads with short arc. Electrode can be weaved 1.5 to 2 times its diameter. Deposit in short weld beads about 25mm to 50mm with frequent interruptions to allow cooling to take place. Peen deposits while hot, after each pass, to limit the internal stresses of the base metal. Preheat is usually not necessary unless very heavy sections are involved. In some cases preheating to 3000C and slow cooling is recommended. After welding is completed job should be cooled slowly with even rate, cover with mineral blankets, or with warm dry sand or lime.
 
Typical Mechanical Properties of Weld Metal
Typical Tensile Strength Hardness (As Deposited)
35 kgf/mm2 160 – 180 BHN
 
Sizes and Recommended Current Range (AC or DC+)
Diameter (mm) 2.50 3.15 4.0
Current (Amps) 50 - 75 80 - 100 100 - 140
SAITRON 860
Description:
SAITRON 860 is a basic coated low heat input Ferro-Nickel all position electrode for welding of cast iron, and joining of cast iron to steels. The weld deposit is highly crack resistant. Smooth welding arc with less spatter. Weld deposit provide good level of strength, toughness and machinability. Good weld joints in Grey, Malleable, Nodular or Spheroidal cast iron and some alloy cast irons. Suitable for use on both AC and DC -/+.
 
Applications:
It is highly suitable for repair and fabrication of cast iron housings, blocks, machinery parts, frames, casting defects, repair of cracks, etc. It also suitable for joining application of cast irons to carbon steels. Used on machine beds, pump casings, valve bodies, valve flanges, bell housings, motor covers, friction press discs etc.
 
Note on Usage:
Before welding remove oil and grease. Clean weld area by grinding to remove cracks or worn fatigued surface of components. Use electrode on AC/DC-/+ at the lowest amps. Deposit short, stringer beads with short arc. Electrode can be weaved 1.5 to 2 times its diameter. Deposit in short weld beads about 25mm to 50mm with frequent interruptions to allow cooling to take place. Peen deposits while hot, after each pass, to limit the internal stresses of the base metal. Preheat is usually not necessary unless very heavy sections are involved. In some cases preheating to 300°C and slow cooling is recommended. After welding is completed job should be cooled slowly with even rate, cover with mineral blankets, or with warm dry sand or lime.
 
Typical Mechanical Properties of Weld Metal
Tensile Strength Hardness (As Deposited)
35 - 40 kgf/mm2 160 – 180 BHN
 
Sizes and Recommended Current Range (AC or DC+)
Diameter (mm) 2.50 3.15 4.0
Current (Amps) 50 - 75 80 - 100 100 - 140
SAITRON 870
Description:
SAITRON 870 is a basic coated low heat input Ferro-Nickel all position electrode for welding of cast iron, and joining of cast iron to steels. The weld deposit is highly crack resistant. Smooth welding arc with less spatter. Weld deposit provide good level of strength, toughness and machinability. Good weld joints in Grey, Malleable, Nodular or Spheroidal cast iron and some alloy cast irons. Suitable for use on both AC and DC -/+.
 
Applications:
It is highly suitable for repair and fabrication of cast iron housings, blocks, machinery parts, frames, casting defects, repair of cracks, etc. It also suitable for joining application of cast irons to carbon steels. Used on machine beds, pump casings, valve bodies, valve flanges, bell housings, motor covers, friction press discs etc.
 
Note on Usage:
Before welding remove oil and grease. Clean weld area by grinding to remove cracks or worn fatigued surface of components. Use electrode on AC/DC-/+ at the lowest amps. Deposit short, stringer beads with short arc. Electrode can be weaved 1.5 to 2 times its diameter. Deposit in short weld beads about 25mm to 50mm with frequent interruptions to allow cooling to take place. Peen deposits while hot, after each pass, to limit the internal stresses of the base metal. Preheat is usually not necessary unless very heavy sections are involved. In some cases preheating to 3000C and slow cooling is recommended. After welding is completed job should be cooled slowly with even rate, cover with mineral blankets, or with warm dry sand or lime.
 
Typical Mechanical Properties of Weld Metal
Tensile Strength Hardness (As Deposited)
45 - 50 kgf/mm2 155 – 175 BHN
 
Sizes and Recommended Current Range (AC or DC+)
Diameter (mm) 2.50 3.15 4.0
Current (Amps) 50 - 75 80 - 100 100 - 140
SAITRON 890
Description:
SAITRON 890 is a low heat input Pure-Nickel electrode for welding of cast iron, and joining of cast iron to steels. It is used for repair, filling, and build up on cast iron. The weld deposit is highly crack resistant. Smooth welding arc with less spatter. Weld deposit provide good level of strength, toughness and machinability. Good weld joints in Grey, Malleable, Nodular or Spheroidal cast iron and some alloy cast irons. Suitable for use on both AC and DC -/+.
 
Applications:
It is highly suitable for repair and fabrication of cast iron housings, pump casing, blocks, machinery parts, frames, casting defects, repair of cracks, impellers, etc. It also suitable for joining application of cast irons to carbon steels. Used on machine beds, pump casings, valve bodies, valve flanges, bell housings, motor covers, friction press discs etc.
 
Note on Usage:
Before welding remove oil and grease. Clean weld area by grinding to remove cracks or worn fatigued surface of components. Use electrode on AC/DC-/+ at the lowest amps. Deposit short, stringer beads with short arc. Electrode can be weaved 1.5 to 2 times its diameter. Deposit in short weld beads about 25mm to 50mm with frequent interruptions to allow cooling to take place. Peen deposits while hot, after each pass, to limit the internal stresses of the base metal. Preheat is usually not necessary unless very heavy sections are involved. In some cases preheating to 3000C and slow cooling is recommended. After welding is completed job should be cooled slowly with even rate, cover with mineral blankets, or with warm dry sand or lime.
 
Typical Mechanical Properties of Weld Metal
Tensile Strength Hardness (As Deposited)
35 kgf/mm2 150 – 180 BHN
 
Sizes and Recommended Current Range (AC or DC+)
Diameter (mm) 2.50 3.15 4.0
Current (Amps) 50 - 75 80 - 100 100 - 140
 
 
 
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