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Électrodes

S-13MN.B

Hardfacing Applications S-13MN.B

Type Basic
Industry Heavy Equipment|Offshore structures|Energy & Power Plants|Steel Fabric
JIS Z3251 DFMA-250-B
EN
KS
AWS
  • Caution ① Dry the electrodes at 350~400℃(662~752℉) for 60 minutes before use.

    ② Preheat at 200~300℃(392~572℉).

    ③ Adopt back step method or strike the arc on a small steel plate prepared for this particular purpose because arc striking on the base metal is in danger of initiating cracking.

    ④ Pay attention not to exceed proper heat-input because excessive heat-input causes deterioration of impact values of all weld metal.
  • Purpose ① Low alloy high tensile steels
  • Attribute ① Iron powder and low hydrogen type electrode (high efficiency)

    ② Good crack resistance

    ③ Good X-ray performance

    ④ Good impact value at -50°C

S-711

Hardfacing Applications S-711

Type Basic
Industry
JIS Z3251 DFCrA-600-BR
EN
KS
AWS
  • Caution .
  • Purpose ① Mills to crush clinker in cement industry

    ② Screws in oil industry
  • Attribute ① Good wear resistance

    ② Austenite structure containing Cr-Carbide

    ③ Machining impossible (As welded)

    ④ Preheat at more than 150°C(302°F)

S-700B.B

Hardfacing Applications S-700B.B

Type Basic
Industry
JIS Z3251 DF3C-600-B
EN
KS
AWS
  • Caution ① Preheat at 150℃(302℉) or more than that in general.

    ② Postheat at about 600℃(1112℉), if possible.

    ③ In case of multi-layer build-up welding or welding base metal of hardening property, underlay with low hydrogen type carbon steel electrodes.

    ④ Dry the electrodes at 350~400℃(662~752℉) for 60 minutes before use.
  • Purpose ① Hardfacing of rollers, gears, crane wheels and abrasive parts
  • Attribute ① Preheat at more than 150°C(302°F)

    ② Postheat at about 600°C(1112°F), if possible

    ③ Martensite structure (All-weld metal)

    ④ Machining impossible (As welded)

    ⑤ Mostly suitable for soil abrasion

S-600B.B

Hardfacing Applications S-600B.B

Type Basic
Industry
JIS Z3251 DF2B-600-B
EN
KS
AWS
  • Caution ① Preheat at 150℃(302℉) or more than that in general.

    ② In case of multi-layer build-up welding or welding base metal of hardening property, underlay

    with low hydrogen type carbon steel electrodes.

    ③ Dry the electrodes at 350~400℃(662~752℉) for 60 minutes before use.
  • Purpose ① Hardfacing of rollers, gears, crane wheels and abrasive parts
  • Attribute ① Under-lay with low hydrogen type carbon steel electrode

    ② Preheat at more than 150°C(302°F)

    ③ Suitable for soil abrasion

    ④ Martensite structure (All-weld metal)

S-500B.B

Hardfacing Applications S-500B.B

Type Basic
Industry
JIS Z3251 DF2B-500-B
EN
KS
AWS
  • Caution ① Preheat at 150℃(302℉) and more than that in general.

    ② In case of multi-layer build-up welding or welding base metal of hardening property, underlay

    with low hydrogen type carbon steel electrodes.

    ③ Pay attention to blow hole at the arc starting.

    ④ Dry the electrodes at 350~400℃(662~752℉) for 60 minutes before use.
  • Purpose ① Hardfacing of rollers, gears, crane wheels and abrasive parts
  • Attribute ① Under-lay with low hydrogen type carbon steel electrode

    ② Preheat at more than 150°C(302°F)

    ③ Machining difficult

S-450B.B

Hardfacing Applications S-450B.B

Type Basic
Industry
JIS Z3251 DF2A-450-B
EN
KS
AWS
  • Caution ① Preheat at 150℃(302℉) and more than that in general.

    ② In case of multi-layer build-up welding, under-lay with low hydrogen type carbon steel electrodes.

    ③ Pay attention to blow hole at the arc starting.

    ④ Dry the electrodes at 350~400℃(662~752℉) for 60 minutes before use.
  • Purpose ① Hardfacing of rollers, gears, crane wheels and abrasive parts
  • Attribute ① Mixed metal structure of austenite and martensite

    ② Under-lay with low hydrogen type carbon steel electrode ③ Preheat at more than 150°C(302°F)

S-350B.B

Hardfacing Applications S-350B.B

Type Basic
Industry
JIS Z3251 DF2A-400-B
EN
KS
AWS
  • Caution ① Preheating is unnecessary, in general, large weldments of hardening property should be preheated.

    ② In case of high cooling speed, preheat or postheat to prevent difficulty of machining caused by hardening.

    ③ Pay attention to blow hole at the arc starting.

    ④ Dry the electrodes at 350~400℃(662~752℉) for 60 minutes before use.
  • Purpose ① Hardfacing of rollers, gears, crane wheels and abrasive parts
  • Attribute ① Medium abrasive resistance, impact resistance

    ② Machining possible

    ③ Low spatter

    ④ Good bead appearance

    ⑤ Hardness increased by quenching after machining

S-260A.B

Hardfacing Applications S-260A.B

Type Basic
Industry
JIS Z3251 DF2A-300-B
EN
KS
AWS
  • Caution ① Preheating is unnecessary, in general, in case of multi-layer welding of low alloy steel and high carbon steel, preheat at about 150℃(302℉).

    ② Adopt back step method or strike arc on a small steel plate prepared for this particular purpose for preventing blow hole at the arc starting.

    ③ Dry the electrodes at 350~400℃(662~752℉) for 60 minutes before use.
  • Purpose ① Hardfacing of rollers, gears, crane wheels and abrasive parts
  • Attribute ① Light abrasive resistance, impact resistance

    ② Good cutting properties

    ③ Easy to remove slag

    ④ Low spatter

    ⑤ Good bead appearance

S-350A.R

Hardfacing Applications S-350A.R

Type Rutile
Industry
JIS Z3251 DF2A-350-R
EN
KS
AWS
  • Caution ① In case of hardfacing on large size cast steel, low alloy steel and high carbon steel, preheat at 150℃(302℉) and more than that.

    ② The groove repairing is prone to slag inclusion. Adjust the holding angle of the electrodes.

    ③ Dry the electrodes at 70~100℃(158~212℉) for 60 minutes before use
  • Purpose ① Hardfacing of rollers, gears, crane wheels and abrasive parts
  • Attribute ① Medium abrasive resistance, impact resistance

    ② Machining / Quenching possible

    ③ Easy to remove slag

    ④ Good bead appearance

S-240A.R

Hardfacing Applications S-240A.R

Type Rutile
Industry
JIS Z3251 DF2A-250-R
EN
KS
AWS
  • Caution ① Hardfacing large size cast steel and forging, low alloy steel and high carbon steel requires preheating at 150℃(302℉) and more than that.

    ② The groove repairing is prone to slag inclusion. Adjust the holding angle of the electrodes.

    ③ Dry the electrodes at 70~100℃(158~212℉) for 60 minutes before use.
  • Purpose ① Hardfacing of rollers, gears, crane wheels and abrasive parts
  • Attribute ① Light abrasive resistance, impact resistance

    ② Good cutting properties

    ③ Stable arc

    ④ Easy to remove slag

    ⑤ Low spatter

    ⑥ Good bead appearance
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