Haihao Group Supplies JIS Standard Pipe Fittings to Russia
Haihao Group has successfully completed the shipment of JIS standard pipe fittings to a customer in Russia. The order includes carbon steel and stainless steel fittings, manufactured in accordance with JIS B2313 and JIS B2312, meeting the dimensional accuracy and material requirements of the project.
These fittings are widely applied in industrial piping systems where reliable welding performance and stable mechanical properties are required.
Supplied Pipe Fitting Details
The delivered products cover several common piping components:
Concentric Reducer
- Size: 139.8 × 6.6 – 114.3 × 6.0 mm
- Standard: JIS B2313
- Material: STPG 370 carbon steel (equivalent to 20# steel)
The concentric reducer ensures smooth flow transition and balanced stress distribution in pipeline systems.
90° Short Radius Elbow
- Size: 60.5 × 3.9 mm
- Type: 90° SR elbow
- Standard: JIS B2313
- Material: STPG 370 carbon steel
Short radius elbows are suitable for compact piping layouts where space is limited.
Pipe Cap
- Size: 32A SCH 40 (42.7 × 3.6 mm)
- Standard: JIS B2312
- Material: SUS304 stainless steel
The stainless steel pipe cap provides excellent corrosion resistance and reliable sealing at pipe ends.
Material and Standard Advantages
STPG 370 carbon steel, specified in JIS B2313, offers good strength, weldability, and pressure resistance, making it suitable for general industrial piping.
SUS304 stainless steel, used for the pipe cap, ensures durability and corrosion resistance in demanding service environments.
By supplying fittings in accordance with Japanese Industrial Standards, Haihao Group supports international projects requiring precise dimensional control and consistent quality.
Applications
These JIS pipe fittings are commonly used in:
- Industrial process piping
- Utility and service pipelines
- Mechanical and equipment connections
- Water, oil, and gas systems
Quality Control and Inspection
All fittings are produced under strict quality control procedures, including:
- Dimensional inspection
- Material verification
- Visual and surface examination
- Compliance checks with JIS standards
Haihao Group ensures that every fitting meets customer specifications before shipment.
Why Haihao Group
With extensive experience supplying pipe fittings to the Russian market, Haihao Group provides products covering reducers, elbows, caps, flanges, and pipes in JIS, EN, and ASTM standards.
Our stable manufacturing capability and export experience allow us to deliver reliable solutions for international piping projects.

