If you are sourcing stainless pipe for industrial, commercial, or OEM applications, choosing the right manufacturer matters as much as choosing the right material. At PipeCW – Zhangjiagang Chewit International Co., Ltd – we manufacture precision stainless pipe directly from our factory in Zhangjiagang, China, and supply buyers across North America, Europe, the Middle East, Asia-Pacific, South America, and Africa.
Whether you need seamless stainless steel pipe for high-pressure hydraulic systems, welded stainless pipe for food processing lines, or cold drawn stainless pipe for precision instruments, we produce it to your exact specifications. Small order quantities are welcome, and our lead times are built around the realities of international supply chains.
This page covers everything you need to know before placing an inquiry – from material grades and pipe types to quality standards, custom options, and how to get a quote.
What Is Stainless Pipe and Why It Matters for Your Industry
Stainless pipe is a hollow, cylindrical product made from stainless steel alloys that contain chromium (minimum 10.5%) and often nickel, molybdenum, or titanium. The chromium content forms a passive oxide layer on the surface, giving the pipe its defining characteristic – resistance to corrosion, rust, and staining.
For industrial buyers, this translates into longer service life, lower maintenance costs, and reliable performance in environments where carbon steel or aluminium would fail. Stainless pipe is used widely in applications involving aggressive chemicals, high temperatures, hygienic requirements, or high mechanical loads.
Key reasons industries specify stainless pipe:
• Excellent corrosion resistance in wet, acidic, or chemically active environments
• High strength-to-weight ratio compared to conventional carbon steel pipe
• Temperature resistance from cryogenic conditions up to 800°C+ depending on the grade
• Hygienic surface that can be cleaned and sterilised – critical in food and pharma
• Long service life that reduces total cost of ownership over time
Types of Stainless Pipe Available from Our China Factory
PipeCW manufactures three main types of
stainless pipe, each suited to different applications and performance requirements.
Seamless Stainless Steel Pipe
Produced without a weld seam, seamless stainless pipe is extruded from solid billet. The seamless construction gives it higher pressure ratings and greater structural uniformity. It is the preferred choice for oil and gas systems, hydraulic lines, high-temperature environments, and any application where weld-zone weakness is not acceptable.
Welded Stainless Steel Pipe
Made by rolling stainless steel strip into a tube and welding the seam longitudinally, welded pipe offers good dimensional consistency and smooth surface finish. It is cost-effective for applications that do not require the pressure rating of seamless pipe – such as food processing equipment, water treatment systems, HVAC, and decorative architectural uses.
Cold Drawn Stainless Pipe
Cold drawing is a secondary process applied to both seamless and welded pipe to achieve tighter dimensional tolerances, improved surface condition, and better mechanical properties. Our cold drawn stainless steel tube is widely used in precision instrumentation, hydraulic steel tube systems, and automotive components where dimensional accuracy is critical.
Stainless Pipe Grades We Offer – 304, 316,
The grade of stainless steel determines the pipe's chemical composition, corrosion resistance, mechanical properties, and suitability for different environments. We work with multiple grades to cover the full range of industrial and commercial applications.
•
Grade 304 (1.4301): The most widely used stainless grade. Good corrosion resistance in most environments, suitable for food equipment, architecture, and general industrial use. Available in both seamless and welded form.
•
Grade 316 / 316L (1.4401 / 1.4404): Adds molybdenum for superior resistance to chlorides and acidic environments. The standard choice for marine applications, chemical processing, and pharmaceutical equipment. 316L is the low-carbon version for improved weldability.
If you require a specific grade not listed here, contact our team with your material standard and application details. We will advise on availability and suitability.
Seamless vs Welded Stainless Pipe – Which One Do You Need?
This is one of the most common questions from international buyers. The right choice depends on your application, pressure requirements, budget, and surface finish needs. Here is a practical comparison:
Choose seamless stainless pipe when: your application involves high internal pressure, elevated temperatures, or cyclic loading. Oil and gas pipelines, hydraulic systems, boiler tubes, and chemical reactors typically require seamless pipe because there is no weld zone to act as a potential failure point.
Choose welded stainless pipe when: your application involves moderate pressures, decorative finishes, or hygienic environments where a smooth, cleanable surface is the priority. Food processing machinery, water treatment systems, and architectural structures are common examples. Welded pipe is also more cost-effective and available in a wider range of diameters.
Choose cold drawn stainless pipe when: dimensional precision is critical. If your components require tight tolerance on outer diameter, wall thickness, or straightness – for instance in hydraulic steel tube assemblies or precision instruments – cold drawn pipe gives you the surface quality and accuracy you need.
Still unsure? Send us your application details and we will recommend the right product type for your project.
Full Specifications – Sizes, Wall Thickness & Surface Finish Options
Below is a summary specification table covering our standard stainless pipe ranges. Custom sizes outside these ranges are available – please enquire with your required dimensions.
| Specification |
Seamless Stainless Pipe |
Welded Stainless Pipe |
Cold Drawn Stainless Pipe |
| OD Range |
4mm – 114mm |
6mm – 168mm |
4mm – 60mm |
| Wall Thickness |
0.5mm – 10mm |
0.5mm – 5mm |
0.3mm – 6mm |
| Grades |
304, 316, 321, 310S |
304, 316L |
304, 316, 321 |
| Surface Finish |
2B, BA, Mirror, Pickled |
2B, Polished, Brushed |
BA, Mirror, 2B |
| Standards |
ASTM A213, EN 10216-5 |
ASTM A249, EN 10217-7 |
DIN 2391, EN 10305-1 |
| Best Use |
High pressure, oil & gas, pharma |
Food, HVAC, water systems |
Hydraulic, precision instruments |
| MOQ |
MOQ 600m |
MOQ 1ton |
MOQ 600m |
All dimensions and tolerances are subject to the applicable international standard. If you work to a specific standard (ASTM, EN, DIN, JIS, GB), please include this in your inquiry so we can confirm compliance.
Industries We Supply Stainless Pipe To Worldwide
PipeCW supplies stainless steel pipe and stainless steel tube to a broad range of industries across more than 30 countries. Our products are used in demanding environments where material quality directly affects safety and performance.
• Automotive & Transportation: Stainless pipe for exhaust systems, fuel lines, and automotive fluid management. We also supply automotive steel tube for precision body and chassis components.
• Oil, Gas & Petrochemical: Seamless stainless pipe for wellhead equipment, heat exchangers, and process lines in refineries and offshore platforms.
• Food & Beverage Processing: Hygienic stainless pipe for dairy, brewing, bottling, and food manufacturing equipment. Grade 316L is standard in food-contact applications.
• Hydraulic & Pneumatic Systems: Cold drawn stainless pipe and hydraulic steel tube for high-pressure fluid power systems in industrial machinery and mobile equipment.
• Medical & Pharmaceutical: High-purity stainless pipe for sterile fluid transfer, bioreactors, and pharmaceutical manufacturing plants.
• Construction & Architecture: Polished and mirror-finish stainless pipe for railings, structural supports, facades, and interior design applications.
• Energy & Power Generation: Stainless pipe for boilers, heat recovery systems, and power plant equipment operating at high temperatures.
Why Buy Stainless Pipe Direct from a China Manufacturer?
International buyers who source stainless pipe directly from a Chinese manufacturer – rather than through a trading company or local distributor – typically benefit in several practical ways.
• Factory-direct pricing: Removing the middleman from the supply chain means lower unit costs, especially for regular or bulk orders. The saving is most significant for buyers in North America, Europe, and the Middle East where domestic prices for precision steel tube are considerably higher than ex-works China pricing.
• Direct access to production: Buying from the manufacturer means you can specify exact dimensions, grades, surface finishes, and lengths – and have those requirements built into the production run, rather than selecting from off-the-shelf stock.
• Consistent supply: Working directly with the factory allows you to plan repeat orders and build a stable supply relationship. This is particularly important for OEM buyers and distributors who need reliable lead times.
• Technical support: Our experienced team can review your drawings, application requirements, and technical specifications before production. This reduces errors and ensures the delivered product meets your needs.
PipeCW has been exporting precision steel tube and stainless pipe to international markets for over a decade. Our factory covers 10,000 square metres and employs more than 120 people, including an experienced quality inspection team dedicated to pre-shipment checks.
Our Small MOQ Policy – Order As Little As You Need
One of the most common barriers for new buyers sourcing from China is minimum order quantity (MOQ). Many large steel mills require buyers to commit to full container loads or multi-tonne minimums before production begins.
At PipeCW, we accept small MOQ orders. This makes us a practical choice for:
• Importers placing first orders to test product quality before scaling up
• Distributors with multiple product lines who cannot commit to large volumes of each SKU
• OEM buyers who need small batches of custom-size stainless pipe for product development
• Engineering companies and contractors sourcing pipe for specific projects rather than ongoing stock
We can discuss MOQ requirements based on the specific pipe type, grade, and size you need. Sample orders are also available so you can evaluate quality before committing to a commercial shipment. Contact us with your specification and we will confirm the minimum quantity and pricing for your requirement.
Fast Delivery Guaranteed – From Factory Floor to Your Door
Delivery speed is a critical factor for international buyers managing inventory and project timelines. Our production process is structured to minimise lead times without compromising quality.
Production Lead Time
Standard stainless pipe orders are typically processed within 15–25 working days from order confirmation and deposit receipt, depending on the specification and quantity. Custom sizes, special grades, or large volume orders may require additional production time. We confirm the exact lead time with each order.
Shipping Options
We work with experienced freight forwarders and offer flexible shipping arrangements to suit your logistics requirements:
• Sea freight (FCL and LCL) – most economical for large or regular orders to USA, Europe, Middle East, and Asia-Pacific
• Air freight – for urgent or small orders where delivery speed is the priority
• Express courier (DHL, FedEx, UPS) – for samples, prototypes, or small test orders
Export Packaging
Stainless pipe is packaged in protective bundles with end caps, wooden crates or pallets, and waterproof outer wrapping to prevent surface damage and contamination during transit. We follow standard export packaging practices and can adjust packaging to meet specific carrier or customer requirements.
Custom Stainless Pipe – OEM Orders & Special Sizes Welcome
Many of our international customers require stainless pipe that goes beyond standard catalogue dimensions. Our manufacturing capabilities support a wide range of custom requests.
Custom options available include:
• Non-standard outer diameters and wall thicknesses
• Cut-to-length – fixed lengths from 1 metre to 12 metres, or cut to your specified dimension
• Special surface finishes including electropolishing, passivation, or specific Ra surface roughness values
• Custom material certifications and test reports to your project specification
• OEM labelling and private branding on packaging
• Special end treatments including bevelled ends, threaded ends, or flanged connections
If you have engineering drawings or a technical specification sheet, send these to us directly. Our team will review them and provide a detailed quotation including material, production, and logistics costs. We can also advise on material substitutions or design adjustments that might improve cost efficiency without compromising performance.
Quality Control & Certifications – MTR, ISO, SGS & More
Quality control is built into every stage of our manufacturing process, from raw material incoming inspection through to pre-shipment final checks. International buyers need confidence that the product they receive matches the specification on the order and the certificate.
Material Traceability
Every batch of stainless pipe we produce is traceable back to the raw material heat. Mill test reports (MTR) covering chemical composition and mechanical properties are available for all orders. Certificates confirm compliance with the relevant standard (ASTM, EN, DIN, or JIS as applicable).
In-Process Inspection
Our quality team carries out dimensional checks, surface inspection, and mechanical testing during production. Our bright annealing furnace – which operates without oxygen – produces a clean, consistent surface finish without oxidisation, eliminating the need for acid pickling in many applications.
Pre-Shipment Inspection
Before despatch, each order undergoes a final inspection covering dimensions, surface condition, quantity, and packaging. Third-party inspection by agencies such as SGS, Bureau Veritas (BV), or TUV can be arranged on request. We hold relevant quality certifications – certificate images are available on our website at pipecw.com.
How to Place Your Stainless Pipe Order with PipeCW
Our ordering process is straightforward and designed to move quickly from inquiry to production.
• Step 1 – Send your inquiry: Email us at sale@chewit.cn or contact us via WhatsApp (+86 18962244644) with your required pipe type, grade, dimensions, quantity, and destination country.
• Step 2 – Receive your quotation: We will review your requirements and send a detailed quotation within 24 hours, including unit price, lead time, and shipping cost estimate.
• Step 3 – Confirm your order: Once you approve the quotation, we issue a proforma invoice and confirm the production schedule.
• Step 4 – Production and QC: Your stainless pipe is manufactured to specification, inspected, and prepared for shipment. We send you production updates and pre-shipment photos on request.
• Step 5 – Shipment and after-sales: We arrange shipping, provide all export documents, and follow up to confirm your order arrives in good condition. We support reorders and ongoing supply relationships.
Shipping & Packaging – Safe Delivery to USA, Europe & Middle East
PipeCW exports stainless pipe and stainless steel tube regularly to buyers in the United States, Canada, the United Kingdom, Germany, France, the Netherlands, UAE, Saudi Arabia, Turkey, India, Australia, Brazil, South Africa, and many other markets.
We have established relationships with experienced freight forwarders who specialise in steel pipe shipments. This allows us to arrange competitive sea freight rates, correct HS code classification, and accurate export documentation including commercial invoice, packing list, bill of lading, certificate of origin, and mill test reports.
For buyers importing into the USA, Europe, or the Middle East, we can advise on applicable import duties, tariff codes, and documentation requirements. We regularly handle shipments under both standard commercial terms and customer-specified Incoterms (FOB, CIF, CFR, EXW).
Packaging is designed to protect pipe from mechanical damage, moisture, and contamination during long sea voyages. We use:
• Plastic end caps on all pipe ends to prevent ingress of moisture or debris
• Bundling with steel strapping or polypropylene wrap
• Wooden crates or pallets for fragile or high-value orders
• Waterproof outer packaging for sea freight shipments
Frequently Asked Questions About Stainless Pipe
Q1: What is the difference between 304 and 316 stainless pipe?
Grade 304 is the standard austenitic stainless grade with good general corrosion resistance. Grade 316 adds molybdenum, which significantly improves resistance to chlorides, salt water, and acidic environments. For most general industrial and commercial applications, 304 is sufficient. For marine, chemical processing, or pharmaceutical environments where chlorides are present, 316 or 316L is the correct choice.
Q2: Can you supply stainless pipe in custom lengths and non-standard sizes?
Yes. We accept orders for non-standard outer diameters, wall thicknesses, and cut-to-length requirements. Please provide your exact dimensions and we will confirm feasibility and pricing. Where your requirements fall outside our standard production ranges, we will advise on the closest available option or discuss custom tooling.
Q3: Do you provide mill test certificates with your stainless pipe?
Yes. Material test reports (MTR) covering chemical composition and mechanical properties are provided as standard with every commercial order. We can also provide certificates of conformance to specific standards such as ASTM, EN, or DIN. Third-party inspection reports from SGS, BV, or similar agencies are available on request.
Q4: What is the minimum order quantity for stainless pipe?
We accept small MOQ orders. The exact minimum depends on the pipe type, grade, and size you require. Unlike large steel mills that require full container loads, we work with importers, distributors, and OEM buyers who need smaller quantities. Contact us with your specification and we will confirm the MOQ and pricing for your requirement.
Q5: How long does delivery take to the USA, Europe, or Middle East?
Production lead time is typically 15–25 working days from order confirmation. Sea freight transit times vary by destination: approximately 25–35 days to the US East Coast or West Coast, 25–30 days to Northern Europe, and 15–20 days to the Middle East. Air freight is available for urgent orders. We confirm exact lead times with each order.
Q6: Is your stainless pipe suitable for food and pharmaceutical applications?
Yes. We supply food-grade stainless pipe in Grade 316L with appropriate surface finishes for hygienic applications. For pharmaceutical and bioprocess applications, we can produce pipe with electropolished internal surfaces and provide material certification confirming compliance with relevant standards. Please specify your application requirements when enquiring so we can recommend the correct product.
Ready to Source Stainless Pipe from a Reliable China Manufacturer?
PipeCW – Zhangjiagang Chewit International Co., Ltd – manufactures precision stainless pipe for international buyers across more than 30 countries. We produce seamless
stainless steel pipe, welded stainless pipe, and cold drawn stainless tube to your exact specification, with small MOQ accepted and competitive lead times.
Whether you are placing your first trial order or looking for a long-term supply partner for stainless steel pipe, stainless steel tube, or related products such as alloy steel tube, hydraulic steel tube, or seamless steel pipe – we are ready to discuss your requirements.
Contact us today: Email sale@chewit.cn, WhatsApp +86 18962244644, or visit
www.pipecw.com to send an inquiry. Our team will respond within 24 hours.
© Zhangjiagang Chewit International Co., Ltd | pipecw.com | sale@chewit.cn | +86 18962244644
+86 18962244644
SHUANGSHAN ROAD, JINGANG TOWN, ZHANGJIAGANG CITY, JIANGSU PROVINCE, CHINA
sale@chewit.cn
