Product Overview

Alloy steel tee is a critical connecting component used in high-temperature and high-pressure pipeline systems, primarily for changing fluid direction or diverting flow. The WP91 alloy steel tee utilizes an advanced 9Cr-1Mo-V-Nb-W alloy system . It exhibits excellent high-temperature strength, creep resistance, and oxidation resistance, and is widely used in high-end industrial sectors such as ultra-supercritical thermal power, nuclear power, and petrochemical hydrogenation units.

Product Parameters

Parameter	Specification
Execution Standards	ASME B16.9, GOST 17376, DIN2615
Size Range	1/2"-48" (DN15-DN1200)
Wall Thickness Classes	SCH20, SCH40, SCH80, SCH160, XXS, GOST, DIN, etc.
Material Grades	A234 WP91, WP22, WP11, WP5, WP9, WB36, 15XM, etc.
Connection Type	Butt Welding (BW)
Surface Treatment	Bare surface, rust-proof paint, rust-proof oil
Packaging Method	Wooden crate, wooden pallet
Supply Capacity	1000 tons/month

Product Advantages

Superior High-Temperature Strength

Maintains creep rupture strength exceeding 70MPa after 100,000 hours at 600°C, significantly outperforming ordinary carbon steel and low-alloy steel.

Excellent Creep Resistance

The normalization and tempering (N+T) process ensures resistance to deformation and cracking under prolonged high-temperature and high-pressure conditions.

Strong Corrosion Resistance

Alloy steel tee is suitable for corrosive media containing hydrogen and sulfides, offering high resistance to hydrogen attack and embrittlement in harsh operating environments.

Main Applications

Petroleum and Chemical Industry

Alloy steel tee can be used in high-temperature and high-pressure process piping, such as in hydrocracking and delayed coking units, for conveying corrosive media including hydrogen and sulfides.

Power Industry

Applied in main steam pipelines, reheat steam pipelines, and boiler connection systems of supercritical and ultra-supercritical thermal power plants, withstanding steam temperatures above 600°C.

FAQ

Q1: What is the maximum operating temperature for WP91 alloy steel tee?

A1: WP91 tees are suitable for high-temperature environments exceeding 600°C, with a maximum operating temperature of approximately 650°C, making them ideal for ultra-supercritical power plants and high-temperature chemical pipelines.

Q2: Can you customize non-standard sizes or special wall thicknesses?

A2: Yes, we support customization of specifications, wall thickness, materials, and surface treatments to meet diverse engineering standards and project requirements.

Hot Tags: alloy steel tee, China alloy steel tee manufacturers, suppliers, factory, 4 steel tee, asme b16 9 lateral tee, asme b16 9 reducing tee, GOST Standard Tee, pipe tee, Steel Tee