M-90 D450-B
Features
- Under-lay with low hydrogen type carbon steel electrode
- Preheat at more than 150⁰ c (302⁰f)
- Suitable for soil abrasion
- Martensite Structure (All-Weld Metal)
Application
- Hardfacing of rollers, gears, crane wheels, and abrasive parts
Classification
JIS Z3251 DF2B-450-B
Chemical Compositions
| C | Si | Mn | P | S | CR | Ni | MO |
| 0.30 | 1.06 | 0.56 | 0.019 | 0.01 | 1.64 | - | 0.63 |
Welding Parameters
| DIAMETER (mm) | 3.2 | 4.0 |
| LENGTH (mm) | 350 | 350 |
| CURRENT (amps) | 90-130 | 120-160 |
Current
AC or DC +-
Hardness
HB (350-400) HRC (37-42)
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M-90 D400-B
Features
- Mixed metal structure of austenite and martensite
- Under-lay with low hydrogen type carbon steel electrode
- Preheat at more than 150⁰c (302⁰2f)
Application
- Hardfacing of roller, gears, crane wheels, and abrasive parts
Classification
JIS Z3251 DF2A-450B
Chemical Compositions
| C | Si | Mn | P | S | CR | Ni | MO |
| 0.26 | 0.82 | 1.44 | 0.019 | 0.01 | 1.64 | - | 0 |
Welding Parameters
| DIAMETER (mm) | 2.5 | 3.2 |
| LENGTH (mm) | 300 | 350 |
| CURRENT (amps) | 70-100 | 100-150 |
Current
AC or DC +-
Hardness
HB ( 390 – 470 ) HRC ( 42 – 50 )
( Tempering 650C – 850C )
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M-90 D600-B
Features
- Under-lay with low hydrogen type carbon steel electrode
- Preheat at more than 150⁰c ( 302⁰f )
- Suitable for soil abrasion
- Martensite structure ( all-weld metal )
Application
- Hardfacing of rollers, gear, crane wheels, and abrasive parts
Classification
JIS Z3251 DF2B-600-B
Chemical Compositions
| C | Si | Mn | P | S | CR | Ni | MO |
| 0.52 | 1.10 | 1.61 | 0.022 | 0.009 | 3.90 | - | 1.34 |
Welding Parameters
| DIAMETER (mm) | 3.2 | 4.0 |
| LENGTH (mm) | 350 | 350 |
| CURRENT (amps) | 100-150 | 140-200 |
Current
AC or DC +-
Hardness
HB ( 580 – 610 ) HRC ( 56 – 59 )
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M-90 D600-BR
Features
- Good wear resistance
- Austenite structure containing cr-carbide
- Machining impossible ( as welded )
- Preheat at more than 150⁰c ( 320⁰f )
Application
- Mills to crush clinker in cement industry.
Classification
JIS Z3251 DF2B-600-BR
Screws in oil industry.
Chemical Compositions
| C | Si | Mn | P | S | CR | Ni | MO |
| 3.47 | 0.90 | 1.11 | 0.018 | 0.014 | 33.87 | - | - |
Welding Parameters
| DIAMETER (mm) | 3.2 | 4.0 |
| LENGTH (mm) | 350 | 350 |
| CURRENT (amps) | 100-150 | 140-200 |
Current
AC or DC +-
Hardness
HB ( 610 ) HRC ( 59 )
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M-90 D250-B
Features
- Manganese 13%
- Impact resistance
- Cutting properties impossible
- Easy to remove slag
- Suitable for soil abrasion
Application
- Light impact abrasion, crusher hammers, jaws,rolls and buckets.
Classification
JIS Z3251 DF2A-250-B
Chemical Compositions
| C | Si | Mn | P | S | CR | Ni | MO |
| 0.38 | 0.06 | 14.5 | 0.030 | 0.003 | 1.16 | - | 1.57 |
Welding Parameters
| DIAMETER (mm) | 3.2 | 4.0 |
| LENGTH (mm) | 350 | 350 |
| CURRENT (amps) | 100-150 | 140-200 |
Current
AC or DC +-
Hardness
HB ( 480 ) HRC ( 45 – 50 )
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