DUAL SHIELD B9
Dual Shield B9 is an all position flux-cored wire designed to weld 9% Cr -1% Mo(P91) steels.
Features
Dual Shield B9 is an all-position flux cored electrode designed for the welding of modified 9% chromium creep resisting steels, such as ASTM A335 Grade P91 or ASTM A213 T91. This product is formulated with a combined Mn & Ni <1.20% to meet stringent customer specifications.
Dual Shield B9 is packaged on layer level-wound wire spool baskets to allow the product to be placed in a heated storage oven. In addition, the wire is packaged in a vacuum-sealed foil bag to prevent moisture pick-up until such time the sealed bag has been opened.
View large imageClassifications
Classifications/Approvals
- ASME II SFA 5.29 E91T1-B9M
- ASME IX F No. 6
- AWS A5.29; E91T1-B9M
Properties
| As Welded 75% Ar / 25% CO2 | |
|---|---|
| Post Weld Heat Treatment 2 hr. at 1400ºF (760ºC) | |
| Yield Stress | ksi, 85,000 PSI, 580 MPa |
| Tensile Strength | ksi, 105,000 PSI, 720 MPa |
| Elongation in 2" | 20 % |
| Charpy Impact Touchness @ 72°F (22°C) | 30 ft-lb., 40 J |
| Typical Undiluted Weld Metal Analysis | |
| 75% Ar / 25% CO2 | |
| C | 0.09 % |
| Mn | 0.90 % |
| Si | 0.2 % |
| P | 0.011 % |
| S | 0.008 % |
| Cr | 8.87 % |
| Ni | 0.20 % |
| Mo | .95 % |
| V | 0.22 % |
| Nb | 0.035 % |
| N | 0.036 % |
| Al | < 0.01 % |
| Mn + Ni | <1.20 % |
| X - factor | <15 |
| Cu | 0.04 % |
Part No.
SAW
Accessories
Depositions/Paramaters
| Diameter | Position | Volts | Amps | WFS |
|---|---|---|---|---|
| 0.045 in, 1.2 mm | Flat | 26 to 32 V | 170 to 290 Amps | 250-600 |
| Vertical | 24 to 26 V | 170 to 200 Amps | 250-340 | |
| Overhead | 25 to 27 V | 180 to 230 Amps | 290-425 | |
| 1/16 in, 1.6 mm | Flat | 26 to 33 V | 200 to 365 Amps | 170-330 |
Extra Info
Dual-Shield B9 was developed for the welding of the modified 9% Cr 1% Mo alloy modified with V, Nb and N and referred to as the '91' Grade in ASTM A213, A335 and specifications covering the same composition. Dual-Shield B9 was developed for welding in all positions and performs particularly well with automatic pipe welding equipment with excellent slag removal. It should be used with 75% Ar / 25% CO2 gases.
Shielding Gas
75% Argon/25% CO2
Procedure
Dual Shield B9 has been formulated for use with 75% Argon / 25% CO2 shielding gas.This product operates well out-of-position, especially in the 6 o’clock position on pipe producing a flat to slightly convex weld bead. All product is available in both .045 in. (1.2 mm) and 1/16 in. (1.6 mm) diameters on 15 lb (6.8 kg) and 33 lb (15 kg) spools.
Complementary Products
Seismic Data
All listed prices are in U.S. dollars and represent the Manufacturer's Suggested Retail Price (MSRP) for sale in the United States. Actual selling price will be determined by the Distributor. Prices are subject to change without notice.