COBALT 6 ALLOY

Typical Applications
  • Exhaust valves
  • Needle valves
  • Shear blades
  • Press dies
  • Hot oil pump parts
  • Pistons
  • Hot puches
  • Steam valves
  • Hydraulic valves
  • Trimming dies
  • Mill guides
  • Pins & bearings

HARDALLOY 6-C
Covered Surfacing Electrodes

AWS AS.13 (ASME SFA5.13) Class EcoCr-A

Description

Typical Deposit Analysis %

Typical Properties

Optium Current
Hardalloy 6-C deposit is a cobalt alloy having an outstanding combination of impact, heat, corrosion and metal-to-metal wear resistance. The deposit has a low coefficient of friction and acquires a high polish in use.

C-1.0
Mn-1.0
Si-1.0
Cr-30.0
W-4.5
Co-Bal.

 Hardness…………………….34-45 Rc\

(Maintains hot hardness
above 1200° F/649° C)

Impact Resistance………....Excellent
Abrasion Resistance……………...Good

Machinability…arbide tools prefered

(cannot be flame out)

Dia. (mm.)

Amps.

3.2
4.0
5.0
6.0

80-100
140-150
170-180
245-255

Polarity :
DC ± AC
DC + Preferred

HARDALLOY 6-B
Bare Surfacing Rod

AWS AS.13 (ASME SFA5.13) Class RCoCr-A

Description

Typical Deposit Analysis %

Typical Properties

Deposit
Method

Diameter
(mm)
Hardalloy 6-C deposit is a cobalt alloy having an outstanding combination of impact, heat, corrosion and metal-to-metal wear resistance. The deposit has a low coefficient of friction and acquires a high polish in use.

C-1.0
Mn-1.0
Si-1.0
Cr-30.0
W-4.5
Co-Bal.

Hardness 34-45 Rc/350-450 BHN

(Maintains hot hardness
above 1200° F/649° C)

Impact Resistance………....Excellent
Abrasion Resistance……………...Good

Machinability…arbide tools prefered

(cannot be flame out)

Oxyacetylene

Gas Tungsten Arc.

3.2
4.0
5.0
6.0

HARDALLOY 6-G
Metal Cored Gas Shielded Surfacing Wire

Class ECoCr-A

Description

Typical Deposit Analysis %

Typical Properties

Operating Ranges
Tube-Alloy 6-G, is a cobalt based alloy having excellent metal to metal wear and cavitation erosion resistance. The ability to retain high hardness at elevated temperatures makes it well suited for non-lubircated bearing surfaces. The deposit has good corrosion resistance. With proper pre-heat, the deposit can be applied crack-free

C-1.0
Mn-1.0
Si-1.0
Cr-29.0
W-4.4
Fe 3.1
Co-Bal.

Hardness 34-45 Rc/350-450 BHN

Impact Resistance……….………..Good
Abrasion Resistance……………...Good
Machinability………………………..Poor

Grinding recommended

(cannot be flame out)

Size

Amps

Volts

Stickout

Poan
1.2mm
1.6 mm		 175-225
280-320		 26-28
28-30		 9.5-16mm
9.5-16mm		 DC
DC
Designed to operate with Argon or 98% Argon 2% Oxygen shielding gas. Can be used with a short-circuiting transfer or with a pulsed aro system for reduced penetration and in dilution