ASTM A182 F22 Forged Lateral Tee (45°)
The ASTM A182 F22 forged lateral tee is a 45-degree branch pipe fitting manufactured from 2.25Cr-1Mo chromium-molybdenum alloy steel, in full compliance with ASTM A182/A182M.
It is designed for branch connections in piping systems operating under high temperature and high pressure conditions.
Description
What Is an ASTM A182 F22 Forged Lateral Tee?
The ASTM A182 F22 forged lateral tee is a 45-degree branch pipe fitting manufactured from 2.25Cr-1Mo chromium-molybdenum alloy steel, in full compliance with ASTM A182/A182M.
It is designed for branch connections in piping systems operating under high temperature and high pressure conditions.
Material Composition and Mechanical Properties of A182 F22
ASTM A182 F22 is a well-established Cr-Mo alloy steel grade known for its excellent high-temperature performance.
Typical mechanical properties include:
Tensile strength: ≥ 655 MPa
Yield strength: ≥ 517 MPa
Hardness: approximately 197–237 HB
Key material characteristics:
High strength at elevated temperatures
Excellent creep resistance
Good oxidation resistance in steam and high-temperature environments
Advantages of Forged Construction
The A182 F22 lateral tee is produced through a forging process, offering significant advantages over cast fittings:
Dense and refined grain structure
Superior mechanical strength and toughness
Improved resistance to fatigue and impact loading
Higher reliability under pressure and thermal cycling
Forged lateral tees are therefore preferred for critical piping systems.
Benefits of the 45-Degree Lateral Design
Compared with conventional 90-degree tees, the 45-degree lateral tee provides a smoother flow transition:
Reduced turbulence and erosion
Lower pressure drop
Improved flow efficiency
Minimized risk of scaling and localized corrosion
This design is particularly suitable for high-velocity fluids and high-temperature steam systems.
Connection Types and Applicable Standards
ASTM A182 F22 forged lateral tees are available with different end connections:
Butt Weld (BW) – for high-pressure, high-temperature pipelines
Socket Weld (SW) – commonly used for smaller diameter piping
Common applicable standards include:
ASME B16.9 (Butt-weld fittings)
ASME B16.11 (Socket-weld fittings)
Typical Applications of A182 F22 Forged Lateral Tees
Power plant steam piping systems
Oil refining and petrochemical facilities
High-pressure process piping
Boilers and thermal engineering systems
For demanding service conditions, ASTM A182 F22 forged lateral tees provide long-term safety and performance.
