Diameters / Packaging
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Diameters |
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DETAILS
Low Alloy, Low Hydrogen • AWS A5.5M E9015-B91 H4
Features
- B9 (P91) alloyed steel: Modified 9CrMo designed to weld equivalent "type 91" 9CrMo steels modified with small additions of niobium, vanadium and nitrogen for improved long term creep resistance
- Moisture resistant coating provides low amounts of weld metal hydrogen levels for a superior weld
- Specifically designed for high integrity structural service at elevated temperature
Typical Applications
- Oil Refineries
- Coal Liquefaction and Gasification Plants
- Main Steam Piping
- Valves and Turbine Casings
- Power Generation Plants
Welding Positions
- All except vertical down
Disclaimers
Service Information
Documentation
BEFORE USE, READ AND UNDERSTAND THE SAFETY DATA SHEET (SDS) FOR THIS PRODUCT AND SPECIFIC INFORMATION PRINTED ON THE PRODUCT CONTAINER. SDS Search page
See test result disclaimer
CONFORMANCE
| CONFORMANCES | SPECIFICATION | CLASSIFICATION |
|---|---|---|
| AWS | AWS A5.5 | E9015-B91 H4 |
| ISO | ISO 3580-A | E CrMo91 B 3 2 H5 |
MECHANICAL PROPERTIES
| Classification |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
|---|---|---|---|
| E9015-B91 H4 Requirement | 530 (77) min. | 620 (90) min. | 17 min. |
| E CrMo91 B 3 2 H5 Requirement | 415 (60) min. | 585 (85) min. | 17 min. |
| Typical Result, Stress relieved | 640 (93) | 770 (112) | 22 |
DEPOSIT COMPOSITION
| Classification | %C | %Cr | %Mn | %Mo | %N | %Nb | %Ni | %P | %S | %Si | %Total Cu | %V | %Mn+Ni |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| E9015-B91 H4 Requirement | 0.08 - 0.13 | 8.0 - 10.5 | 1.20 max. | 0.85 - 1.20 | 0.02 - 0.07 | 0.02 - 0.10 | 0.80 max. | 0.01 max. | 0.01 max. | 0.30 max. | 0.25 max. | 0.15 - 0.30 | 1.40 max. |
| E CrMo91 B 3 2 H5 Requirement | 0.06 - 0.12 | 8.0 - 10.5 | 0.40 - 1.50 | 0.80 - 1.20 | 0.02 - 0.07 | 0.03 - 0.10 | 0.40 - 1.00 | 0.025 max. | 0.025 max. | 0.60 max. | 0.3 max. | 0.15 - 0.30 | |
| Typical Result | 0.10 | 9.0 | 0.60 | 1.00 | 0.05 | 0.05 | 0.70 | 0.010 | 0.008 | 0.25 | 0.05 | 0.20 | 1.30 |
TYPICAL OPERATING PROCEDURES
| Diameter |
Current
Amps |
|---|---|
| 2.5 mm (3/32") | 70-110 |
| 3.2 mm (1/8") | 80-140 |
| 4.0 mm (5/32") | 100-180 |
| 5.0 mm | 140-240 |