Haihao Group Supplies Alloy Steel and Stainless Steel Tees to Russia
Haihao Group has successfully completed the production and delivery of a batch of industrial pipe tees for a customer in Russia.
The shipment includes equal tees and reducing tees manufactured from alloy steel and stainless steel, designed for high-temperature and high-pressure service conditions commonly found in power generation, petrochemical, and thermal pipeline systems.
All products were manufactured in accordance with Russian and international technical standards, ensuring dimensional accuracy, material reliability, and long-term service performance.

12cr1mov equal tees supplied by Haihao Group for Russian industrial pipeline projects
Product Range – Equal and Reducing Pipe Tees
This delivery covers a wide range of tee fittings with different sizes and materials to meet diverse operating requirements.
Equal Tees (Equal Passage Tees)
- Sizes: 28×3, 32×4, 48.3×5 mm, 60×6 mm, 89×3.5 mm
- DN sizes: DN10, DN40, DN50
- Materials: 12Cr1MoV, 42CrMo
- Application: uniform flow distribution in straight pipeline systems
Reducing Tees
- Sizes: 20×10 mm, 20×20 mm
- Standards: STO CKTI 720.15 / 720.16
- Material: 12Cr1MoV
- Application: branch connections with diameter transition
Stainless Steel Equal Tee
- Size: DN10, thickness 2 mm
- Material: AISI 321 stainless steel
- Application: corrosion-resistant and temperature-sensitive systems
Materials for High-Temperature and High-Pressure Service
The tees supplied in this project were produced using carefully selected materials:
- 12Cr1MoV alloy steel – widely used in thermal power and boiler pipelines for elevated temperature resistance
- 42CrMo alloy steel – high strength and excellent pressure-bearing capability
- AISI 321 stainless steel – stabilized stainless steel with good resistance to intergranular corrosion
These materials are commonly specified for steam pipelines, heat exchange systems, and energy infrastructure in Russia and CIS countries.

Alloy steel equal tees and reducing tees supplied by Haihao Group
Compliance with Russian and Industry Standards
Manufacturing was carried out in accordance with relevant specifications, including:
- TU 14-3-460-03
- OST 108.720.01-82
- STO CKTI 720.15 / 720.16
- GOST 17376
Each tee was produced strictly according to approved drawings and technical documentation provided by the customer.
Quality Control and Inspection
Haihao Group applied strict quality control procedures throughout production:
- Raw material verification and traceability
- Dimensional inspection and visual examination
- Compliance checks against drawings and standards
- Careful packaging for long-distance shipment to Russia
These measures ensure that every alloy steel tee and stainless steel tee meets project and operational requirements.
Reliable Pipe Tee Supplier for the Russian Market
With extensive experience supplying pipe fittings to Russia, Haihao Group continues to support customers with customized tees, stable quality, and reliable delivery.
From 12Cr1MoV equal tees to 42CrMo high-pressure tees and 321 stainless steel tees, Haihao Group provides solutions tailored to demanding industrial environments.
