Haihao Group has completed the production and shipment of a comprehensive batch of industrial steel pipes for a customer in Russia. The order covers ASTM A312 seamless pipe products, EFW welded pipes, low-temperature carbon steel pipes, chrome-moly alloy steel pipes, duplex stainless steel pipes, and large-diameter welded pipes manufactured to ASME B36.10 dimensional requirements.
This diversified shipment demonstrates Haihao Group’s capability to provide complete piping solutions for power generation, oil & gas, petrochemical processing, LNG facilities, and industrial infrastructure projects.
Order Overview
The shipment includes a wide range of seamless and EFW welded pipes manufactured from various international materials, including:
| Product Type | Material | Standard |
| Seamless Stainless Steel Pipe | ASTM A312 TP304L | ASME B36.10 |
| Seamless Stainless Steel Pipe | ASTM A312 TP304H | ASME B36.10 |
| Seamless Stainless Steel Pipe | ASTM A312 TP316L | ASME B36.10 |
| Seamless Low Temperature Pipe | ASTM A333 Grade 6 | ASME B36.10 |
| Seamless Alloy Steel Pipe | ASTM A335 P11 | ASME B36.10 |
| Seamless Alloy Steel Pipe | ASTM A335 P22 | ASME B36.10 |
| EFW Stainless Steel Pipe | ASTM A358 TP304L | ASME B36.10 |
| EFW Stainless Steel Pipe | ASTM A358 TP316L | ASME B36.10 |
| EFW Carbon Steel Pipe | ASTM A671 CC60 | ASME B36.10 |
| Seamless Duplex Pipe | UNS S31803 | ASME B36.10 |
Pipe sizes range from 3/4 inch to 52 inches, covering schedules including SCH10S, SCH40S, SCH80S, SCH XS, SCH STD, SCH140, SCH160, and customized wall thicknesses to satisfy different service conditions.
ASTM A312 Seamless Pipe Manufactured for Reliable Industrial Service
The core products in this shipment are ASTM A312 seamless pipe products manufactured in TP304L, TP304H, and TP316L stainless steel grades. These materials are widely recognized for their excellent corrosion resistance, weldability, and durability in demanding process industries.
Every ASTM A312 seamless pipe supplied by Haihao Group is manufactured with strict dimensional control according to ASME B36.10, ensuring compatibility with international piping systems and fittings.
For customers operating in chemical plants, offshore platforms, water treatment facilities, and refineries, ASTM A312 seamless pipe offers dependable performance under both corrosive and high-temperature operating conditions.
Complete Material Coverage for Multiple Industrial Applications
Besides stainless steel products, this Russian order also includes several specialized pipe materials designed for different operating environments.
Stainless Steel Pipes
- ASTM A312 TP304L
- ASTM A312 TP304H
- ASTM A312 TP316L
- ASTM A358 TP304L EFW Pipe
- ASTM A358 TP316L EFW Pipe
These materials provide excellent corrosion resistance and long service life for chemical processing, food production, pharmaceutical facilities, and marine engineering.
Low Temperature Carbon Steel Pipes
ASTM A333 Grade 6 seamless pipes were supplied in multiple sizes for applications requiring reliable toughness under sub-zero temperatures, making them suitable for LNG facilities and cryogenic systems.
Chrome-Moly Alloy Steel Pipes
ASTM A335 P11 and ASTM A335 P22 seamless pipes are designed for elevated-temperature service in power stations, boilers, and petrochemical plants where high strength and creep resistance are essential.
Duplex Stainless Steel Pipe
The shipment also includes seamless UNS S31803 duplex stainless steel pipe, combining high mechanical strength with outstanding resistance to chloride-induced corrosion.
Large Diameter EFW Pipes
ASTM A671 Grade CC60 EFW welded pipes up to 52 inches were manufactured for heavy-duty industrial pipeline applications requiring large-diameter transmission capacity.

ASTM A312 seamless pipes and ASME B36.10 industrial steel pipes manufactured by Haihao Group
Strict Quality Assurance Throughout Production
Every ASTM A312 seamless pipe and welded pipe manufactured by Haihao Group undergoes a comprehensive quality control process before shipment.
Inspection procedures include:
- Raw material verification
- Chemical composition analysis
- Dimensional inspection
- Hydrostatic testing where required
- Non-destructive examination
- Surface quality inspection
- Material traceability verification
- Export packing inspection
This quality management system ensures that every ASTM A312 seamless pipe delivered meets customer specifications and international industry requirements.
Supporting Industrial Projects in Russia
Russia’s energy, petrochemical, power generation, and infrastructure sectors require piping systems capable of operating under demanding environmental and process conditions. Haihao Group supplies complete pipeline products that meet these requirements with consistent manufacturing quality and reliable delivery performance.
Beyond ASTM A312 seamless pipe, Haihao Group manufactures:
- Stainless steel pipes
- Carbon steel pipes
- Alloy steel pipes
- Duplex stainless steel pipes
- EFW welded pipes
- Pipe fittings
- Forged fittings
- Flanges
- Customized pipeline components
Our engineering team also supports custom manufacturing according to project drawings and special technical specifications.
Haihao Group – Your Trusted Global Pipe Supplier
With more than four decades of manufacturing experience, Haihao Group provides integrated pipeline solutions for customers worldwide. Whether your project requires stainless steel, alloy steel, duplex stainless steel, or large-diameter welded pipes, we deliver products backed by strict quality control and professional technical support.
If you are sourcing ASTM A312 seamless pipe or complete industrial piping solutions, Haihao Group is ready to help you reduce procurement risks while ensuring reliable project performance.

