DETAILS
Low Alloy Steel • AWS A5.28 ER90S-B3
Features
- B3 alloyed steel: 2.25% chromium, 1% molybdenum alloyed steel consumable designed for prolonged elevated temperature service up to 600°C (1112°F)
- Excellent corrosion resistance in refineries to sulfur bearing crude oil at 250°C-450°C (482°F-842°F)
- Q2 Lot®- Certificate showing actual deposit chemistry and mechanical properties available online
Typical Applications
- Steam Generating Power Plant
- Piping
- Turbine Castings
- Valve Bodies and Boiler Superheaters
- Coal Liquefaction and Pressure Vessels
Welding Positions
- All
Shielding Gas
- 100% Argon
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 A5.28 | ER90S-B3 |
MECHANICAL PROPERTIES
| Classification | Shielding Gas | Polarity |
Yield Strength @ 0.2% Offset
MPa (ksi) |
Tensile Strength
MPa (ksi) |
Elongation
% |
Hardness Rockwell B |
|---|---|---|---|---|---|---|
| ER90S-B3 Requirement | 100% Ar | DC- | 540 (78) min. | 620 (90) min. | 17 min. | Info. Only |
| Typical Result, 1 hour @ 690°C (1275°F) | 100% Ar | DC- | 560-600 (81-86) | 690-720 (100-105) | 23-26 | 96 |
WIRE COMPOSITION
| Classification | %C | %Cr | %Mn | %Mo | %Ni | %P | %S | %Si | %Total Cu |
|---|---|---|---|---|---|---|---|---|---|
| ER90S-B3 Requirement | 0.07 - 0.12 | 2.30 - 2.70 | 0.40 - 0.70 | 0.90 - 1.20 | 0.20 max. | 0.025 max. | 0.025 max. | 0.40 - 0.70 | 0.35 max. |
| Typical Result | 0.09-0.10 | 2.42-2.47 | 0.52-0.58 | 1.01-1.05 | 0.03-0.04 | 0.003-0.008 | 0.003-0.008 | 0.50-0.54 | 0.05-0.08 |