IDENTIFICATION
GM 25.10.4L, ER 25.9.4
CLASSIFICATION
AWS/SFA 5.9 : ER 25.9.4
DESCRIPTION
Solid super duplex stainless wire for welding super duplex stainless steels.
CHEMICAL ANALYSIS (RANGE) %
| C | Cr | Ni | Mn | Si | S | P | Mo | Cu | N | W |
| 0.03 | 24.0 - 27.0 | 8.0 - 10.5 | 2.50 max | 1 | 0.02 | 0.035 | 2.5 - 4.5 | 1.5 | 0.20 - 0.30 | 1 |
| max | max | max | max | max | max |
MECHANICAL PROPERTIES (RANGE)
| EL (%) (L=4D) | CVN Impact Value | |
| Temp | Joules | |
| 18 - 35 | -20°C | 45 - 80 |
TYPICAL APPLICATIONS
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
MICROSTRUCTURE : In the solution treated condition the microstructure is duplex with about 30-60% ferrite dependent upon dilution.
INTERPASS TEMPERATURE : 100ºC max
HEAT INPUT : 0.5-1.5k l/mm
SCALING TEMPERATURE : Approx 850ºC (air)
CORROSION TEMPERATURE : Very good resistance to pitting and stress corrosion cracking in Chloride containing environments. Pitting resistance in accordance with ASTM G-48A better than 40ºC
PACKING PARAMETERS
| Size (mm) | Weight / Spool (kg) |
| 0.8 | 12.5 / 15.0 |
| 1 | 12.5 / 15.0 |
| 1.2 | 12.5 / 15.0 |