ASTM A182 Grade F22 Reducers (Companion to B16 Bolting)
The ASTM A182 Grade F22 Reducer is a crucial pipe fitting used to achieve a smooth, gradual transition between pipes of different diameters in a piping system . Manufactured via a forging process, these reducers use the Chromium-Molybdenum (2.25% Cr) alloy steel that exhibits excellent strength and creep resistance at elevated temperatures. This material is the ideal companion for B16 bolting in critical piping applications above $800^\circ\text{F}$ ($427∘C). Reducers are categorized as Concentric (symmetric) or Eccentric (offset). F22 Reducers are essential for maintaining pressure boundary integrity and managing flow dynamics in high-pressure steam lines, headers, and equipment within thermal power plants and refineries. Zeron Fasteners ensures these reducers meet the rigorous A182 F22 specification for seamless integration with B16 bolted joints.
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ASTM A182 Grade F22 Reducers Chemical Composition
| Element | Composition (% by Mass) |
|---|---|
| Carbon (C) | 0.05 - 0.15 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.030 |
| Silicon (Si) | ≤ 0.50 |
| Chromium (Cr) | 2.00 - 2.50 |
| Molybdenum (Mo) | 0.90 - 1.10 |
ASTM A182 Grade F22 Reducers Mechanical Properties
| Property | Minimum Requirement (Grade F22) |
|---|---|
| Tensile Strength, min | 70 ksi (485 MPa) |
| Yield Strength, min (0.2% offset) | 40 ksi (275 MPa) |
| Elongation in 2 in. (50 mm), min | 20% |
| Reduction of Area, min | 30% |
| Hardness, max (Brinell) | 217 HBW |