| Customization: | Available |
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| Type: | Stainless Steel Pipes |
| Standard: | ASTM, AISI |
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Our 2B Finish Stainless Steel Pipe represents the pinnacle of versatility and resilience, serving as a hollow, cylindrical marvel of engineering. This robust yet lightweight masterpiece is a staple across a multitude of industries, including petroleum, chemical, medical, food, light industry, and mechanical instrumentation. Celebrated for its supreme strength in both bending and torsion, it is the ideal choice for crafting essential mechanical parts, innovative engineering structures, and even sophisticated furniture kitchenware.
Based on its composition, our stainless steel pipe range is meticulously categorized into distinct series: the Cr series (400 series), the refined Cr-Ni series (300 series), the versatile Cr-Mn-Ni (200 series), the exceptional heat-resistant chromium alloy steel (500 series), and lastly, the advanced precipitation hardening series (600 series).
200 series: Featuring chromium-manganese-nickel, this series balances affordability with functionality.
201,202, etc.: With manganese as a substitute for nickel, this series offers a cost-effective solution with moderate corrosion resistance, predominantly utilized as an economical alternative to the premium 300 series in China.
300 series: This series is defined by its chromium-nickel austenitic stainless steel, known for its superior corrosion resistance and durability.
304: Representing the quintessential model of stainless steel, also known as 18/8 stainless steel. It excels in producing corrosion-resistant containers, elegant tableware, stylish furniture, sturdy railings, and precision medical equipment. Its standard composition of 18% chromium and 8% nickel ensures non-magnetic properties, unaffected by heat treatment. In China, it is recognized as GB grade 06Cr19Ni10.
304 L: Featuring the same remarkable characteristics as 304, this variant is enhanced by a lower carbon content, making it exceptionally resistant to corrosion and easy to heat treat, although with slightly reduced mechanical properties. Ideal for welding and applications where heat treatment is challenging.
304 N: Sharing the esteemed qualities of 304, this nitrogen-enriched stainless steel variant boasts increased strength, courtesy of its nitrogen content.
309: This variant surpasses the temperature resistance standards of 304, withstanding temperatures up to a remarkable 980°C.
309 S: Enhanced with substantial chromium and nickel, this stainless steel variety offers superior heat resistance and oxidation tolerance. Optimal for manufacturing components like heat exchangers, boiler elements, and jet engines.
310: Distinguished by its exceptional resistance to high-temperature oxidation, this stainless steel can operate under rigorous conditions of up to 1200°C.
316: Ranking second only to 304 in popularity, this grade is indispensable in the food industry, watch accessory manufacturing, the pharmaceutical sector, and surgical equipment production. It incorporates molybdenum to fortify its corrosion-resistant framework, particularly against chlorides, earning it the nickname 'marine steel'. SS316 is frequently used in nuclear fuel recovery systems. The 18/10 grade stainless steel typically aligns with this application.
316 L: With a low carbon content, this variant offers even greater corrosion resistance and is straightforward to heat treat. Commonly used in chemical processing apparatus, nuclear power infrastructure, and refrigerant storage solutions.
410: A martensitic stainless steel known for its high-strength chromium composition, offering commendable wear resistance but limited corrosion resistance.
420: Often referred to as 'tool-grade' martensitic steel, comparable to Brinell's high-chromium steel, it represents the earliest form of stainless steel. It is favored for crafting surgical knives and can achieve a striking polish.
| Product name | Cold Rolled Pipe Seamless Stainless Steel Pipe Round Steel Pipe Welded Pipe Price | |||
| Specification &Standard | X9CrNiSiNCe 21-11-2 X12CrNi 23-13 X25CrMnNiN 25-9-7 1.4835 1.4833 1.4872 Stainless Steel Pipe | |||
| Outside diameter | 6mm-3000mm | |||
| W.T. | 0.5-100mm | |||
| Length | 1. Single Random Length and double Random Length.2. SRL: 3M-5.8M DRL: 10-11.8M or As clients requested length3. Fixed length (5.8m, 6m, 12m) | |||
| Pipe Ends | Under 2 inch plain end. 2 inch and above Beveled. Plastic caps (small OD). Iron protector (large OD). | |||
| Surface Treatment | black paint, varnish, oil, galvanized, anti-corrosion coated. | |||
| Marking | Supply Logo + Standard + Size(mm) + HEAT NO +or as your requirement | |||
| Test | Chemical Component Analysis, Mechanical Properties, Technical Properties, Exterior Size Inspection, hydraulic testing , X-ray Test, HIC & SSC test, etc. or as your requirment | |||
|
Brand |
JIULI, WUJIN, ZHONGDA, GAOLIN, GANGYI, DEWEI, ZHANGYUAN etc or as your requirment | |||
| Certificates | API, ISO, SGS, BV, CE, PED, KOC, CCRC, PDO and etc. | |||
| Advantages | 1. Abundant stock and prompt delivery2. Reasonable for whole packages and processes.3. 15 years' QC team service & sales management API& ASTM trained engineers.4. More than 150 customers spread worldwide. (Petrofac, G.S Engineer, Fluor, Hyundai Heavy industry, Kuwait National Oil, Petrobras, PDVSA, PetroEcuador, SHELL, etc.) | |||
Chemical Element Content (%)
| X9CrNiSiNCe 21-11-2 Chemical element content (%) | |||||||||
| Element | C | Si | Mn | P | S | Cr | Ni | N | Ce |
| Min | 0.05 | 1.4 | - | - | - | 20 | 10 | 0.12 | 0.03 |
| Max | 0.12 | 2.5 | 1 | 0.045 | 0.015 | 22 | 12 | 0.2 | 0.08 |
| X12CrNi 23-13 Chemical element content (%) | ||||||||
| Element | C | Si | Mn | P | S | Cr | Ni | N |
| Min | - | - | - | - | - | 22 | 12 | - |
| Max | 0.15 | 1 | 2 | 0.045 | 0.015 | 24 | 14 | 0.11 |
| X12CrNi 23-13 Physical properties | |||||||||
| Thermal expansion coefficient between 20°C and various temperatures | Thermal conductivity | Specific heat | Resistivity | Magnetism | |||||
| 200°C | 400°C | 600°C | 800°C | 1000°C | 20°C | 20°C | 20°C | ||
| 10-6K-1 | W/m.K | J/kg.K | Ω.mm2/m | ||||||
| 16 | 17.5 | 18 | 18.5 | 19.5 | 15 | 500 | 0.78 | no* | |
| *-Slightly magnetic when cold worked | |||||||||
| X25CrMnNiN 25-9-7 Chemical element content (%) | ||||||||
| Element | C | Si | Mn | P | S | Cr | Ni | N |
| Min | 0.2 | - | 8 | - | - | 24 | 6 | 0.2 |
| Max | 0.3 | 1 | 10 | 0.045 | 0.015 | 26 | 8 | 0.4 |
| X25CrMnNiN 25-9-7 Physical properties | |||||||||
| Thermal expansion coefficient between 20°C and various temperatures | Thermal conductivity | Specific heat | Resistivity | Magnetism | |||||
| 200°C | 400°C | 600°C | 800°C | 1000°C | 20°C | 20°C | 20°C | ||
| 10-6K-1 | W/m.K | J/kg.K | Ω.mm2/m | ||||||
| 16.5 | 18 | 18.5 | 19 | 19.5 | 14.5 | 500 | 0.75 | no* | |
| *-Slightly magnetic when cold worked | |||||||||
Specification Table
| Specification | Quantity | Specification | Quantity | Specification | Quantity |
| 6-12×1.5-2.5 | 18 | 73×4-4.5-5-6-7-8-9-10-12-15 | 50 | 219×30-40 | 65 |
| 14×1.5-2.5-3 | 20 | 76×4-4.5-5-6-7-8-9-10-12-14 | 60 | 245×8-10-14-17-20-22 | 105 |
| 16×1.5-2.5-4 | 30 | 83×4.5-5-10 | 30 | 245×25-28-30-34-40 | 84 |
| 18×2.3-4-5 | 20 | 89×4.5-8-10 | 40 | 273×7-9-12-15-18-20-25 | 100 |
| 20×2.5-3-5 | 17 | 95×4.5-6-8 | 50 | 273×30-35-38-40 | 50 |
| 24×2.5-3-4-5-6 | 25 | 102×4.5-5-6-10-12-14-16-20 | 80 | 299×8-12-16-20-24-28 | 60 |
| 25×2.5-3-4-5-6 | 28 | 108×4.5-5-14-18-20-22 | 75 | 299×30-32-36-38-40 | 70 |
| 28×3-3.5-4-5-6 | 30 | 114×4.5-5-6-7-8-10-12-14-18-20 | 100 | 325×8-12-14-18-38 | 120 |
| 32×3.5-4-5-6-8 | 40 | 121×4.5-5-6-7-8-10-12-14-16-20 | 102 | 325×28-32-34-38 | 75 |
| 34×4-5-6-8 | 35 | 127×4.5-5-6-7-8-10-12-14-16-20 | 95 | 351×10-16-20-25-40 | 120 |
| 36×3.5-5-6-8 | 30 | 133×4.5-6-8-12-14-16-18-20-25-30 | 120 | 355×6-18-20-25-30-40 | 45 |
| 38×4-5-6-7-8-9-10 | 33 | 140×5-6-7-8-9 | 50 | 377×8-12-15-20-24-28 | 128 |
| 39×3.5-5-8-10 | 30 | 146×4.5-6-8 | 60 | 377×30-37-40 | 60 |
| 42×3.5-4-5-6-7-8-9-10 | 35 | 152×4.5-6- | 60 | 402×10-20-25-30-35 | 70 |
| 45×3.5-4-5-6-7-8-9 | 40 | 159×4.5-6-10-12-14 | 80 | 406×10 | 110 |
| 48×3.5-4-5-6-7-8-9-10 | 24 | 159×16-18 | 30 | 426×10 | 97 |
| 51×3.5-4-5-6-7-8-9-10 | 60 | 168×8-25-30-35 | 130 | 450×10-20-25-34-40 | 108 |
| 56×3.5-4-5-6-7-8-9-10 | 58 | 180×8-12-16-25-30 | 105 | 480×25-30-40 | 95 |
| 57×3.5-5-6-7-8-9-10-12 | 50 | 180×32-34-38-40 | 102 | 500×10-34-40-45 | 100 |
| 60×3.5-4.5-5-6-7-8-9-12-14 | 60 | 194×6-8-25-30-40 | 140 | 510×10-25-34-40-45 | 110 |
| 63×3.5-4.5-5-6-7-8-9-10-12-14 | 40 | 203×6-7-10-15-20-25-30 | 90 | 530×20-30-40 | 140 |
| 68×4-4.5-5-6-7-8-9-10-12-14-16 | 35 | 203×32-36-40 | 70 | 560-720*6-10-24-45 | |
| 70×4-4.5-5-6-7-8-9-10-12-15-16 | 40 | 219×6-8-12-16-18-20-25 | 110 |
Application Requirements
Automobile Industry
In the automotive domain, stainless steel is predominantly employed in exhaust systems, dominating over half of the total stainless steel usage in vehicles. Ferritic stainless steel is the primary choice, especially for exhaust components like mufflers and converters, predominantly utilizing 409L and 436L stainless steel welded pipes. The automotive industry accounts for approximately 1.5% of the entire stainless steel pipe consumption, with a seamless to welded pipe usage ratio standing at about 2:1.
Petrochemical and Fertilizer Industry
The petrochemical industry presents a robust demand for stainless steel pipes, primarily favoring the seamless variety. Common specifications include 304, 321, 316, 316L, 347, and 317L, featuring outer diameters ranging from 18mm to 610mm and wall thicknesses from 6mm to 50mm. These pipes are quintessential for applications such as furnace tubes, material conveyance tubes, and heat exchanger tubes, especially in medium and low-pressure pipeline systems.
Efficient Water and Gas Fluid Transport Solutions
Stainless steel pipes set the standard for fluid transport systems, boasting unparalleled corrosion resistance when compared to traditional materials such as cast iron, carbon steel, and plastic. These pipes and their associated equipment are considered among the world's most advanced materials for water purification.
Stainless steel pipes are the material of choice for the water industry, utilized in a myriad of applications such as water preparation, storage, transportation, purification, regeneration, and desalination processes. Annually, the industry demands approximately 25,000 tons of these indispensable pipes.
Pioneers in Equipment Manufacturing and Maintenance
The equipment manufacturing sector relies heavily on stainless steel pipes, consuming over 20,000 tons annually, particularly in sanitary or antibacterial grades. These pipes, often crafted from SUS304 and 316L, are engineered to meet the rigorous demands of diverse media in the food and biopharmaceutical industries. Antibacterial stainless steel is especially valued for its robust durability and antimicrobial properties, experiencing growing demand in kitchen equipment, food industry worktables, medical instruments, and household items such as towel brackets and refrigerators.
Premium Quality Materials:
We meticulously select only the finest-grade raw materials, ensuring our products deliver unparalleled strength, resilience, and enduring longevity.
Cutting-Edge Technology:
Our advanced manufacturing processes employ cutting-edge technologies, including innovative smelting, continuous casting, and precision rolling to guarantee superior product quality.
Tailored Customization Service:
Our personalized design and manufacturing services are crafted to perfectly align with the unique requirements and specifications of our valued customers.
Frequently Asked Questions
Q1: Why should you choose our company?
A: With a rich legacy spanning over 16 years in the industry and our own state-of-the-art factory, Shanghai Bolaisheng Metal Group Co., Ltd. offers exceptional services. Our professional and dedicated sales team ensures a seamless and satisfying customer experience, making us your trusted partner in the stainless steel tubing sector.
Q2: What are your payment terms?
A: We require a 30% T/T deposit upfront, with the remaining 70% due before delivery. This policy ensures a secure and dependable transaction for all parties involved.
Q3: What delivery terms do you offer?
A: Our comprehensive delivery options include FOB, CFR, CIF, and EXW, providing the flexibility to accommodate your specific shipping requirements.
Q4: How long is your delivery time?
A: Our standard lead time ranges from 7 to 15 days after receiving the deposit, ensuring a prompt and efficient delivery of your order.
Q5: Are samples available for evaluation?
A: Yes, we provide complimentary samples if available in stock, although transportation fees must be covered by the buyer. This allows you to evaluate our product quality before committing to a larger purchase.
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