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Postalloy®
2235-FCG
Description

POSTALLOY® 2235-FCG is a flux-cored gas-shielded welding alloy that produces a tough impact resistant nickel-chromium-moly weld deposit. POSTALLOY® 2235-FCG has good metal-to-metal wear properties at low and high temperatures. POSTALLOY® 2235-FCG is commonly used in the forging industry for building up and repairing sow blocks, rams, die shanks, die holders or filling in complete impressions as required. POSTALLOY® 2235-FCG has a self-releasing synthetic slag that allows it to be used at many different amperage/voltage settings. POSTALLOY® 2235-FCG operates well at high amperage/voltage settings when high deposition rates are required. It also has a very stable arc and fast freezing slag when used at low amperage/volt settings.

Specifications
Product Type

Wire: Flux-cored,Gas-Shielded


Weld Deposit Properties
Tensile Strength  
180,000 psi
Hardness  
34-40 Rc
Machinable  

Applications

Repair and build-up of hammer dies, rams, and sow blocks. Also works well for joining hardenable steels such as 4140


POSTALLOY® 2235-FCG    Welding Parameters
 
Current: DC Reverse Polarity
Diameter Amps Volts Stick Out
1/16" (1.6mm) 200-300 25-29 1" (25mm)
3/32" (2.4mm)250-450 26-321┬╝" (32mm)
1/8" (3.1mm)400-70032-401┬Ż" (38mm)

Welding Procedure

Gas Cover Options (for all wire sizes):
75/25 Argon/CO2, 80/20 Argon/CO2, 90/10 Argon/CO2, 98/2 Argon/CO2, 100% CO2 -Alternate
Remove all defects, heat checks, spalls and cracks. Preheat part to a minimum of 800˚F (427°C). Maintain this temperature during welding. Peening is necessary when filling in small cavities and after depositing each pass. Peening is not necessary when welding large areas such as complete impressions except on the final pass. After welding, cool part in still air to approximately 350˚F (177°C). This is necessary to produce uniform weld hardness. After the cooling temperature is reached, immediately put dies into a furnace at 1050˚F (566°C) and temper for 12 to 16 hours. On rams, sow block and similar type units stress relieve at 1150˚F (621°C) for 12 to 16 hours. Stress relieve hammer bases at 1150˚F (621°C) at one hour per inch of thickness at temperature. Remove the part from the furnace and cool in still air to room temperature.

Packaging Options
Diameter
Standard Packaging
1/16" (1.6mm)
33 lb spool
3/32" (2.4mm)
55 lb coil
1/8" (3.1mm)
55 lb coil