SOLID WIRE FOR CREEP RESISTING STEELS
IDENTIFICATION
GM 90S-B9, ER 90SB9
CLASSIFICATION
AWS/SFA 5.28: ER 90SB9
DESCRIPTION
A non-coppered filler wire of high purity to match creep resisting steels of type 9CrMo modified with controlled additions of niobium, vanadium & nitrogen. Deposited weld metal meets X-ray quality.
CHEMICAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Ni | Mo | Cu | Nb | V | N |
| 0.07 - 0.13 | 1.25 | 0.15 - 0.30 | 0.01 | 0.01 | 8.0 - 10.5 | 0.8 | 0.8 - 1.20 | 0.2 | 0.02 - 0.10 | 0.15 - 0.25 | 0.03 - 0.07 |
| max | max | max | max | max |
MECHANICAL PROPERTIES (RANGE)
| UTS (MPa) | YS (MPa) | EL (%) (L=4D) |
| 620 min | 410 min | 16 min |
TYPICAL APPLICATIONS
• These materials are used in components such as, headers, main steam piping and turbine rotors in power generating plant.
• Applications are also anticipated in oil refinery & petrochemical plant. Service temperature is normally 500-600°C, higher temperatures upto 650°C may be limited by parent HAZ properties.
MATERIALS TO BE WELDED
ASTM-ASME: A213 T91 (TUBE), A387 GRADE 91 (PLATE), A335 P91 (PIPE), A182, A336 F91 (FORGINGS).
DIN: X10CRMOVNB9 1 1.4903
PREHEAT AND INERPASS TEMPERATURE : 150 – 260°C
SHIELDING GAS : Argon + 2 to 5% CO2
PACKING PARAMETERS
| Size (mm) | Weight / Spool (kg) |
| 0.8 | 12.5 |
| 1.2 | 12.5 |
| 1.6 | 12.5 |