Category » Cobalt Alloys » Cobalt Cored Wire

# 1-M

# 1-M is the tubular wire version of the highest hardness standard cobalt alloy used with chromium carbides that impart outstanding abrasive wear resistance. The addition of tungsten enhances high temperature hardness and matrix toughness for excellent adhesive and solid particle erosion wear resistance. It bonds well with all weldable steels, including stainless. Typical applications include screw components, cross heads, hydropulper disc segments, soaking pit-tong bits, mixer rotors, bodies and tip sides, pump sleeves and valves & pumps

Typical Deposit Analysis
C Ni Other Cr Fe Mn
2.6 3.0 max 1.0 max 29.0 5.0 max 2.0 max
Mo Si W Co    
1.0 max 2.0 max 12.0 Rem    
  • Specifications: AWS A5.21-2001
  • Classification: ERCCoCr-C
Typical Deposit Characteristics
Abrasion Resistance Excellent
Impact Resistance Fair
Corrosion Resistance Good
Hardness HRC 48 - 56
Hot Hardness Very Good

# 6-M

# 6-M is the tubular wire version of a cobalt alloy that produces a medium hardness cobalt-chromium deposit for high temperature applications with good abrasive wear and good impact resistance. It is the most versatile and widely used cobalt alloy. Chromium carbides contained in the deposit provide excellent resistance to many forms of chemical and mechanical degradation, including galling and cavitation erosion. It bonds well with all weldable steels, including stainless.

Typical Deposit Analysis
C Ni Other Cr Fe Mn
1.2 3.0 max 1.0 max 28.1 5.0 max 2.0 max
Mo Si W Co    
1.0 max 2.0 max 5.0 Rem    
  • Specifications: AWS A5.21-2001
  • Classification: ERCCoCr-A
Typical Deposit Characteristics
Abrasion Resistance Very Good
Impact Resistance Very Good
Corrosion Resistance Good
Hardness HRC 38 - 46
Hot Hardness up to 1200?F

# 12-M

# 12-M is the tubular fabricated wire version of a cobalt alloy that produces a high hardness cobalt-chromium deposit for high temperature applications with good abrasive wear associated with corrosion. Chromium carbides contained in the deposit provide excellent resistance to many forms of chemical and mechanical degradation, including galling. It bonds well with all weldable steels, including stainless.

Typical Deposit Analysis
C Ni Cr Fe Mn Mo
1.4 3.0 max 28.5 5.0 max 2.0 max 1.0 max
Si W Co      
2.0 max 9.0 Rem      
  • Specifications: AWS A5.21-2001
  • Classification: ERCCoCr-B
Typical Deposit Characteristics
Abrasion Resistance Excellent
Impact Resistance Good
Corrosion Resistance Good
Hardness HRC 44 - 50
Hot Hardness Excellent

# 21-M

# 21-M wire deposits a low carbon austenitic cobalt type alloy with excellent work hardenability, high temperature, strength, and impact resistance. These deposits are quite stable during thermal cycling, making them a favorite for hot die materials. They have good strength and ductility in temperatures up to 2100? F. Resistance to galling (self-mated) corrosion and cavitation erosion make # 21-M a good choice for valve trim on steam and fluid control valve bodies and seats. It bonds well to all weldable steels, including stainless.

Typical Deposit Analysis
C Ni Other Cr Fe Mn
0.3 2.0 1.0 max 27.4 5.0 max 2.0 max
Mo Si W Co    
5.4 2.0 max 0.5 max Rem    
  • Specifications: AWS A5.21-2001
  • Classification: ERCCoCr-E
Typical Deposit Characteristics
Abrasion Resistance Fair
Impact Resistance Excellent
Corrosion Resistance Good
Hot Hardness Excellent
Hardness (2 Layers) HRC 22 - 26
Hardness: Work Hardened HRC 40 - 45