ASTM A182 Grade F1 Weld Neck Flange 16Mo3 WNRF Flange Blind ASME B16.5
ASTM A182 Grade F1 Weld Neck Flanges are forged low-alloy steel flanges designed for high-temperature and high-pressure piping systems. Grade F1 corresponds to 1/4Cr-1/2Mo steel, offering excellent toughness, good weldability, and reliable performance in elevated-temperature refinery, petrochemical, and power plant applications.
ASTM A182 F1 is a forging material specification for F1 grade alloy steel and is used for manufacturing bare forgings or forged and machined products
ASTM A182 grade F1 is an alloy steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. F1 is the ASTM designation for this material. K12822 is the UNS number.
It has a very low electrical conductivity among wrought alloy steels in the same category. In addition, it has a moderately low embodied energy and a moderately low base cost.
Chemical Composition of ASTM A182 F1
| Grade | Alloy Steel A182 F1 |
|---|---|
| C | 0.15 max |
| Mn | 0.3 – 0.6 |
| Si | 0.5 |
| P | 0.03 |
| S | 0.03 |
| Cr | 4 – 6 |
| Mo | 0.44 – 0.65 |
Equivalent Composition
| STANDARD | WERKSTOFF NR. | UNS | JIS |
| ASTM A182 F1 | 1.5415 | K12822 | 16Mo3 |
Mechanical Properties of A182 F1 Flanges
| Grade | Alloy Steel F1 |
| Tensile Strength | 275 |
| Yield Strength (0.2%Offset) | 485 |
| Elongation | 20 % |
Available Flanges Types
We supply ASTM A182 F1 Flanges as per:
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ASME B16.5 WN Flange (Class 150–2500)
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ASME B16.47 Series A / B WN Flange (NPS 26–60)
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RTJ, RF, FF facing
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Long Weld Neck Flanges
- Slip on Flanges
- Blind Flanges
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Reducing Weld Neck Flanges
How to order our A182 F1 Weld neck flange?
