2 Inch SCH 80 316L Seamless Stainless Steel Pipe for Export

Product Overview

The 2 inch SCH 80 316L seamless stainless steel pipe is an industrial piping product manufactured from 316L low-carbon austenitic stainless steel. It offers excellent corrosion resistance, high mechanical strength, and reliable pressure-bearing performance. It is widely used in shipbuilding, offshore engineering, chemical processing equipment, oil and gas systems, pharmaceutical production, food processing, and industrial fluid transportation.

The pipe dimensions, including outside diameter and wall thickness, are determined in accordance with relevant standards such as ASME B36.19M. Material and manufacturing acceptance can be carried out in accordance with ASTM A312/A312M, depending on project requirements.

A 2 inch pipe corresponds to the nominal pipe size NPS 2, while Schedule 80 refers to the SCH 80 wall thickness class. Compared with thinner wall thickness schedules such as SCH 10S and SCH 40S, SCH 80 pipes feature a thicker wall and are more suitable for applications requiring higher mechanical strength and pressure resistance.

316L stainless steel has a lower carbon content than standard 316 stainless steel. This low-carbon composition helps reduce the risk of sensitization and intergranular corrosion during welding. Even though the pipe is manufactured using a seamless process, the material remains highly suitable for subsequent piping installation, welding, connection, and long-term system operation.

Key Specifications

Advantages of 316L Stainless Steel Material

316L is a low-carbon austenitic stainless steel grade. Compared with standard 316 stainless steel, its lower carbon content effectively reduces the risk of intergranular corrosion after welding. The addition of molybdenum provides improved corrosion resistance in chloride-containing environments, acidic media, and marine atmospheres.

1. Excellent Corrosion Resistance

316L stainless steel provides good resistance to many organic acids, inorganic acids, alkaline solutions, and salt-spray environments. Compared with 304 and 304L stainless steel, 316L offers better service life in seawater, coastal areas, chloride-containing media, and chemical corrosion environments.

2. Good Weldability

The low-carbon design makes 316L seamless pipes less susceptible to intergranular corrosion during welding, installation, and further fabrication. It is especially suitable for on-site welding and complex piping system construction.

3. High Pressure-Bearing Capability

The SCH 80 wall thickness provides strong mechanical properties and reliable pressure resistance. It is suitable for high-pressure liquid, gas, steam, and process media transportation systems.

4. Good Hygienic and Cleanability Performance

After pickling and passivation, bright annealing, or internal and external surface polishing, the pipe surface is clean, contamination-resistant, and easy to clean. It can be used in food, beverage, pharmaceutical, biotechnology, and purified water systems.

5. Long Service Life and Low Maintenance Cost

316L seamless stainless steel pipes are resistant to corrosion and oxidation and are less likely to accumulate scale. Under demanding service conditions, they can reduce maintenance downtime and replacement frequency, providing strong overall economic value.

SCH 80 Wall Thickness Explanation

SCH is the abbreviation for "Schedule," which is used to indicate the wall thickness classification of pipes.

For a 2 inch stainless steel pipe, SCH 80S has an outside diameter of 60.3 mm and a standard wall thickness of 5.54 mm.

Compared with SCH 40S, SCH 80S has a thicker pipe wall and therefore offers better performance under internal pressure, mechanical impact, vibration loads, and high-temperature operating conditions. The actual working pressure should be professionally calculated based on the medium, operating temperature, applicable design code, corrosion allowance, and system safety factor.

For high-pressure piping projects requiring long-term stable operation, 2 inch SCH 80 316L seamless stainless steel pipe is a reliable choice for improving the safety and durability of the piping system.

Typical Applications

• Marine engineering, offshore platforms, seawater pipelines, and ship piping systems

• Petrochemical plants, refineries, hydrogenation units, and corrosive media transportation

• Pharmaceutical, food and beverage, biotechnology, and sanitary fluid piping systems

• Seawater desalination, reverse osmosis water treatment, and chlor-alkali industries

• LNG auxiliary pipelines and low-temperature corrosive fluid transportation

• Power plant desulfurization, denitrification, environmental protection, and wastewater treatment systems

• Overseas chemical EPC projects and pressure vessel connection pipes

Export Packing and Transportation

To meet the requirements of international sea freight, land transportation, and multimodal logistics, the pipes can be packed using export-grade protection methods. This helps reduce the risk of scratches, deformation, moisture exposure, and mixed materials during transportation and handling.

Common packing options include:

• Plastic protective caps fitted to both pipe ends

• Individual plastic bags or woven bag protection

• Hexagonal bundle packing

• Reinforcement with steel straps

• Wooden pallet packing

• Fumigated wooden cases or fumigation-free plywood cases

• Outer packing marked with size, material grade, heat number, quantity, contract number, and customer shipping marks

• Neutral packing or customized labels available according to destination-country customs requirements and customer requests

Trade terms such as EXW, FOB, CFR, and CIF are available according to customer requirements. Shipment can be arranged through suitable export ports based on the actual delivery plan.

Supply Capability and Services

HAOMEI Pipe is a professional manufacturer and exporter of seamless stainless steel pipes. With years of experience in stainless steel pipe export, we supply not only 2 inch SCH 80 316L seamless pipes, but also a wide range of pipe sizes, wall thickness schedules, and stainless steel grades.

Available products include:

SCH 10S, SCH 40S, SCH 80S, SCH 160, and other wall thickness schedules

316L, 304, 321, 2205 duplex stainless steel, and other material grades

Different diameters and customized seamless stainless steel pipe specifications

Fixed-length cutting and beveling services

Our service advantages include:

Small trial orders and large-volume project orders accepted

Third-party inspection by SGS, BV, or other inspection agencies available

Technical support for pressure rating verification, media selection, and piping material selection

Batch-by-batch reinspection before shipment to prevent material mixing and insufficient wall thickness

Flexible minimum order quantities

Sample orders can be shipped by LCL consolidation

Complete export documents available, including Certificate of Origin, Mill Test Certificate, and third-party inspection reports

Our main export markets include Southeast Asia, the Middle East, South America, and Europe. We are familiar with export documentation and customs clearance requirements for overseas piping projects.