SOLID WIRE FOR CREEP RESISTING STEELS
IDENTIFICATION
Getig 90SB9, ER 90SB9
CLASSIFICATION
AWS/SFA 5.28: ER 90S-B9
DESCRIPTION
A non-coppered filler wire of high purity to match creep resisting steels of type 9 CrMo modified with controlled additions of niobium, vanadium & nitrogen. Deposited weld metal meets X-ray quality.
CHEMICAL ANALYSIS (RANGE) %
| C | Mn | Si | S | P | Cr | Mo | Cu | Ni | V | N |
| 0.07 - 0.13 | 1.2 | 0.15 - 0.50 | 0.01 | 0.01 | 8.0 - 10.5 | 0.85 - 1.20 | 0.2 | 0.8 | 0.15 - 0.30 | 0.03 - 0.07 |
| max | max | max | max | max |
MECHANICAL PROPERTIES (RANGE) (PWHT 745 ± 15OC/1 HR.)
| 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 INTERPASS TEMPERATURE : 150 - 260°C
SHIELDING GAS : Argon / 5% O2
PACKING PARAMETERS
| Size (mm) | Length (mm) | Packing / Pkt (kg) | Packing / Box (kg) |
| 1.6 | 1000 | 5 | 5 x 4 = 20 |
| 2.40 / 2.50 | 1000 | 5 | 5 x 4 = 20 |
| 3.15 / 3.20 | 1000 | 5 | 5 x 4 = 20 |