A SUPER DUPLEX STAINLESS STEEL TIG WIRE
Getig 25.9.5L, ER 29.9.5
AWS/SFA 5.9: ER 25.9.5
Getig 25.9.5 is a tig wire designed to match similar alloys. The wire gives matching strength and corrosion resistance in the solution treated condition but can also be used in the as-welded condition. Nitrogen and nickel contents are controlled to give a balanced duplex structure to minimize the risk of cracking, particularly in highly restrained welds.
CHEMICAL ANALYSIS (RANGE) %
MECHANICAL PROPERTIES (RANGE)
Pumps and valves, corrosion / wear resisting parts and process equipment for use in offshore oil and gas industries, pulp, paper and textile industries, and chemical and petrochemical plant.
MATERIALS TO BE WELDED
• SAF 2507, ASTM S-32750, S-32760
• ASTM A351, A744 (cast) - CD4MCu, UNS J93370.
• ASTM A240 (wrought) - UNS S32550
• BS 3146- ANC 21, BS 3100 332C13
• DIN 1.4515, 1.4517
• Steel EN 1.4410, NF 23CND 25-06AZ, SS2328
In the solution treated condition the micro- structure is duplex with about 30-60% ferrite dependent upon dilution.
INTERPASS TEMPERATURE: 100°C max
HEAT INPUT : 0.5 - 1.5 kJ/mm
SCALING TEMPERATURE: Approx 850°C (air)
Very good resistance to pitting and stress corrosion cracking in Chloride containing environments. Pitting resistance in accordance with ASTM G-48A better than 40°C.