316 Stainless Steel Seamless Pipe

316 Stainless Steel Seamless Pipe
316 Stainless Steel Seamless Pipe is a molybdenum-enhanced austenitic alloy (16-18% Cr, 10-14% Ni, 2-3% Mo) offering superior corrosion resistance to chlorides, acids, and high temperatures. Its seamless design ensures uniform strength, making it ideal for marine, chemical processing, pharmaceutical, and food industries. Excellent weldability and resistance to pitting/crevice corrosion in harsh environments. Complies with ASTM A312/ASME SA312 standards, providing reliable performance in critical high-pressure and hygienic applications.
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◉ Key Attributes

Product name316 Stainless Steel Seamless Pipe
 SizeOD: 3-2500 mm
WT: 1.0-150 mm
LENGTH: 5.8/6/11.8/12m
 Pipe StandardASTM A213, ASTM A312, ASTM A269, ASTM A778, ASTM A789
DIN 17456,DIN 17457,DIN
EN 10216, BS 3605, JIS 3459, JIS3463, GOS T9941
 Material304/L,316/L,201,202,301,347/H,316Ti,309s,310s
ProcessCold drawn, Cold rolled, Precision Rolled
FinishAnnealed & pickled, bright annealing, polished


Chemical composition Of stainless steel 316:
Grade(%)CMnSiPSCrMoNiN
SS3160.082.00.750.0450.03016-182.00-3.0011.00-14.000.1


Mechanical properties Of stainless steel 316 :
GradeTensile Strength (MPa)Proof Stress (MPa)Elongation A50 mmHardness Brinell
316500-700200Min40% Min215 Max HB


◉ Product Details

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Product Introduction


Stainless steel seamless pipes are made by extruding or perforating solid billets to form hollow tube shells without welds. Compared to welded pipes, this seamless structure has superior structural integrity, enhanced pressure-carrying capacity, and higher corrosion resistance, especially under severe conditions of high pressure, high temperature, or corrosive media. These pipes have excellent corrosion resistance, good mechanical strength, and formability. Common applications include chemical and petrochemical processing, oil and gas exploration and refining, power generation (including nuclear), high-purity pharmaceutical and food processing lines, heat exchangers, and critical fluid transfer systems in high-pressure instrumentation.


About Us


Zhongxi (Shandong) Metal Technology Co., Ltd. is a professional steel manufacturing enterprise integrating R&D, production, sales, and service. The factory boasts advanced production equipment and an intelligent management system, with an annual export volume exceeding 300,000 tons. With high-quality products and excellent customer service, our sales network covers numerous countries and regions in the United States, Europe, Southeast Asia, the Middle East, Africa, and South America.

Our main products include carbon steel (carbon steel coils, carbon steel plates, carbon steel pipes, carbon steel wire), structural steel (angle steel, channel steel, I-beams, H-beams, round steel, flat steel, square steel, hexagonal steel), stainless steel (stainless steel coils, stainless steel plates, stainless steel pipes), galvanized steel (galvanized coils, galvanized plates, galvanized pipes), PPGI, PPGL, billets, reinforcing bars, tinplate, and other products.

Adhering to the principle of "Quality First, Reputation Supreme," we are committed to providing customers with high-quality and sufficient products. If you are interested in our products or wish to discuss custom orders, please feel free to contact us. We look forward to establishing successful business relationships with new customers around the world in the near future.

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Advantage of Stainless Steel Seamless Pipe


1. Superior Corrosion Resistance

Crafted from high-grade stainless steel, our seamless tubes resist oxidation, pitting, and chemical degradation, even in harsh environments like marine, acidic, or high-salinity conditions. The alloy’s chromium-nickel composition forms a passive oxide layer, ensuring long-term durability and minimal maintenance for industries like chemical processing and offshore engineering.

2. High-Pressure & Temperature Resilience

Cold-drawn/cold-rolled manufacturing eliminates weak points, enabling operation at pressures up to 30% higher than welded tubes. Withstanding temperatures from -270°C to 650°C, these tubes excel in cryogenic LNG systems, boilers, and heat exchangers, maintaining structural integrity without deformation or embrittlement.

3. Uniform Dimensional Accuracy

Precision engineering ensures tight tolerances (±0.05mm OD/ID), enabling seamless integration into hydraulic systems, instrumentation, and high-precision machinery. The absence of welds eliminates flow disruptions, reducing energy loss and enhancing efficiency in fluid transport applications.

4. Enhanced Safety & Reliability

Seamless design prevents weld-related failures such as cracks or leaks, critical for mission-critical sectors like aerospace, nuclear power, and automotive. Rigorous testing (hydrostatic, eddy current) guarantees defect-free products, minimizing downtime and compliance risks.

5. Customizable Solutions

Tailor tubes to specific needs with adjustable OD/ID ratios (6mm–426mm OD), wall thicknesses (0.5mm–40mm), and surface finishes (2B, BA, or polished to Ra ≤ 0.2μm). Additional services like cutting, beveling, and documentation (MTC 3.1) streamline procurement for diverse projects.

6. Sustainability & Cost Efficiency

Produced in ISO-certified facilities using recycled materials and eco-friendly coatings, our tubes align with global sustainability goals. Long service life and low maintenance requirements reduce lifecycle costs, offering superior ROI compared to alternative materials.


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Quality Control


We have our own Physical & Chemical Testing Center Lab to guarantee our product quality. Our test items & instrument fully meet international standards.


Application of Stainless Steel Seamless Pipe



1. Oil & Gas Exploration

Stainless steel seamless tubes are critical for drilling, extraction, and transportation in harsh offshore/onshore environments. Their corrosion resistance handles acidic crude, H₂S, and high-pressure fluids, while seamless construction prevents leaks in pipelines, well casings, and subsea equipment. Ideal for high-temperature/high-pressure systems, they ensure safety and compliance with industry standards, minimizing downtime in demanding operations.

2. Chemical & Petrochemical Processing

In chemical plants, these tubes resist aggressive chemicals, solvents, and high temperatures, ensuring reliable operation in reactors, heat exchangers, and distillation columns. Seamless design eliminates weak points, reducing contamination risks in catalytic processes. Their durability extends equipment lifespan, even in corrosive environments, meeting stringent performance requirements for continuous industrial operations.

3. Food & Beverage Production

Hygienic stainless steel tubes with polished interiors prevent bacterial adhesion and ensure product purity in dairy, brewing, and beverage systems. Used for fluid transfer, equipment connections, and storage, they comply with food-safety regulations. Easy-to-clean surfaces and corrosion resistance reduce maintenance, making them indispensable for maintaining hygiene standards in food processing lines.

4. Pharmaceutical Manufacturing

Critical for sterile processes, these tubes handle WFI (Water for Injection), solvents, and APIs without leaching. Seamless construction and electropolished finishes ensure GMP compliance, while corrosion resistance supports repeated sterilization. Their reliability minimizes particle generation, essential for maintaining product integrity in injectable drugs and biopharmaceutical production.

5. Semiconductor & Electronics

Ultra-high-purity tubes deliver gases like N₂, Ar, and SiH₄ without contamination in semiconductor fabrication. Seamless construction and proprietary cleaning processes meet SEMI standards for vacuum systems, etching chambers, and CVD tools. Their precision ensures stable gas/liquid flow, critical for achieving nanoscale precision in wafer manufacturing and advanced electronics assembly.

6. Aerospace & Defense Systems

Lightweight yet durable tubes withstand vibration, thermal cycling, and fuel/oxidizer exposure in aircraft hydraulics, rocket engines, and fuel lines. Precision engineering guarantees dimensional stability, while vacuum arc remelting grades meet aerospace standards for extreme reliability. Their use in hydraulic systems and structural components ensures safety in commercial and military aviation applications.


Contact Us


As a leading company, Zhongxi Metal is known for our excellent product quality and professional services, providing our customers with a reliable partner. We have a global sales network that can meet the needs of customers in different countries and regions.If you need more information about us or have any other needs, please feel free to contact us. We look forward to working with you to create a better future.


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