Haihao Group has successfully completed the production and shipment of a batch of seamless steel pipe to Latvia, manufactured in accordance with GOST 8732-78 standards. These pipes are designed for structural and industrial applications requiring high strength, dimensional accuracy, and strict quality control.
Project Overview: Seamless Steel Pipe to Latvia
This shipment of seamless steel pipe to Latvia includes the following specifications:
Product Details:
- Product: Seamless Steel Pipe (Hot-Finished)
- Standard: GOST 8732-78
- Steel Grade: 20
- Size: 630.0 mm × 10.0 mm
- Total Weight: 1.53 tons
Tolerance Requirements:
- Wall Thickness Tolerance: +12.5% / -15%
- Outer Diameter Tolerance: ±1.25%
- Total Weight Tolerance: +20% / 0%
These seamless steel pipe to Latvia products are manufactured with tight tolerances to ensure compatibility with demanding engineering systems.

Large diameter seamless steel pipe GOST 8732-78 grade 20
Chemical Composition of Grade 20 Steel
The seamless steel pipe to Latvia is produced using controlled chemical composition to ensure performance stability:
- C: 0.17–0.24%
- Mn: 0.35–0.65%
- Si: 0.17–0.37%
- P ≤ 0.03%
- S ≤ 0.035%
- Cr ≤ 0.25%
- Cu ≤ 0.30%
- Ni ≤ 0.30%
This balanced composition ensures that the seamless steel pipe to Latvia provides good strength, ductility, and weldability.
Mechanical Properties at Ambient Temperature
To meet project requirements, the seamless steel pipe to Latvia complies with the following mechanical performance:
- Tensile Strength (Min): 412 N/mm²
- Yield Strength (Min): 245 N/mm²
- Elongation (Min): 21%
- Hardness: ≤ 156 HB
These properties make the seamless steel pipe to Latvia suitable for structural and pressure-related applications.
Inspection and Testing
Quality assurance is critical for every seamless steel pipe to Latvia delivered by Haihao Group. The following tests were strictly carried out:
Mandatory Testing:
- ✔ Hydrostatic Pressure Test
- ✔ Non-Destructive Testing (NDT)
Surface Inspection:
- No rust, cracks, deformation, or visible defects
- Clean internal and external surfaces
These procedures ensure that each seamless steel pipe to Latvia meets international quality expectations.
Advantages of GOST 8732 Seamless Steel Pipes
The seamless steel pipe to Latvia manufactured under GOST standards offers several advantages:
- ✔ High structural integrity without weld seams
- ✔ Excellent mechanical strength and durability
- ✔ Reliable performance under pressure
- ✔ Suitable for cold and moderate temperature environments
Applications
The supplied seamless steel pipe to Latvia is widely used in:
- Structural engineering projects
- Industrial pipelines
- Machinery manufacturing
- Oil & gas and energy sectors
Why Choose Haihao Group?
As a trusted supplier of seamless steel pipe to Latvia, Haihao Group provides:
- Advanced hot-finished seamless production lines
- Strict compliance with GOST and international standards
- Comprehensive inspection and testing procedures
- Strong export experience to Europe
We ensure every order meets both technical and commercial expectations.
Request a Quote Today
If you are looking for a dependable supplier of seamless steel pipe to Latvia, Haihao Group is ready to support your project.
Contact us now for a fast quotation and professional technical support.

