Weld Mold® 305

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WA 17 chrome, 4 nickel, 4 copper precipitation hardening stainless steel alloy.

Applications

Weld Mold 305 is used for joining 17/4, 15/5 grades to themselves and dissimilar combinations of these steels. PH steels are used primarily for marine and aerospace applications such as fuel tanks, valves, gears, landing gear covers, pump parts, shafts, bolts, saws, knives and flexible bellows type joints.

Procedure

Mechanical properties of 17-4 PH are greatly influenced by heat treating. After welding heat treat between 1,825ºF and 1,925ºF for one hour. Then precipitate harden the material at 1,135ºF and 1,165ºF for four hours. No pre-heat is required when welding. Keep interpass temperatures as low as possible.

SMAW DC+
GMAW - DC+ (short circuit) 92%Ar/8% CO2 or (spray) 90% He 7.5%Ar 2.5% CO2
GTAW - DC- 100%Ar

Technical Data

• Available Processes: SMAW, GMAW and GTAW
• Tensile Strength: 150,000 psi after heat treating
• Elongation: 10%
• Class: AWS-E630