| Customization: | Available |
|---|---|
| Type: | Stainless Steel Pipes |
| Standard: | ASTM, AISI |
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Our stainless steel pipe, a marvel of engineering, serves as an indispensable, versatile solution across a multitude of industries, from petroleum and chemical to medical, food, and light industry, as well as mechanical instrumentation. Celebrated for its incredible strength in both bending and torsion while maintaining a lightweight form, it is the perfect choice for the crafting of mechanical components, engineering structures, and even stylish furniture kitchenware. This adaptability ensures its place at the forefront of industrial applications.
By composition, our stainless steel offerings are expertly classified into distinct series. These include the Cr series (400 series), Cr-Ni series (300 series), Cr-Mn-Ni series (200 series), the heat-resistant chromium alloy steel (500 series), and the impressive precipitation hardening series (600 series), each tailored to meet specific industrial needs with precision and excellence.
200 series: A sophisticated blend of chromium-manganese-nickel, designed for versatile applications.
201, 202, etc.: Ingeniously engineered with manganese as a substitute for nickel, this series offers a cost-effective alternative with reduced corrosion resistance, widely adopted in China as a thoughtful substitution for the 300 series.
300 series: This premium category encompasses chromium-nickel austenitic stainless steel, known for its enduring quality and performance.
304: The quintessential model of stainless steel, also known as 18/8 stainless steel, is trusted for its excellent corrosion resistance. Ideal for diverse products like resilient containers, elegant tableware, stylish furniture, secure railings, and sophisticated medical equipment, its standard composition ensures reliable performance. The 304 remains non-magnetic, preserving its metallographic structure through heat treatment. In China, it is recognized as the GB grade 06Cr19Ni10.
304 L: Mirroring the remarkable properties of 304, this low-carbon variant enhances corrosion resistance and simplifies heat treatment, though it sacrifices some mechanical strength. It is particularly suitable for welding applications and products that are challenging to heat treat.
304 N: This variant of 304 is enriched with nitrogen, elevating the steel's strength while retaining its core characteristics, making it a robust choice for demanding applications.
309: Designed for superior temperature resistance, it outperforms 304 withstanding temperatures up to 980°C.
309 S: Rich in chromium and nickel, this alloy boasts exceptional heat and oxidation resistance, making it ideal for products like heat exchangers, boiler components, and cutting-edge jet engines.
310: Unmatched in its class for high-temperature oxidation resistance, this steel grade operates seamlessly at temperatures reaching 1200°C, ensuring reliability under extreme conditions.
316: A close contender to 304, this robust steel grade finds extensive use across the food industry, watchmaking, pharmaceutical sector, and surgical equipment. Its inclusion of molybdenum bestows a unique corrosion-resistant structure, particularly effective against chloride corrosion, thus earning the title of 'marine steel.' SS316 is a preferred choice in nuclear fuel recovery systems, meeting the high standards of 18/10 grade stainless steel.
316 L: Embodying low carbon content, this variant enhances corrosion resistance and heat treatment ease, making it suitable for chemical processing equipment, nuclear power generators, and refrigerant storage tanks.
410: A martensitic steel known for impressive wear resistance, albeit with limited corrosion resistance, ideal for applications requiring high strength.
420: As a 'tool-grade' martensitic steel, reminiscent of Brinell's high-chromium steel, this pioneering stainless steel is perfect for crafting surgical knives, capable of achieving a brilliant finish.
| Product name | X55CrMnNiN 20-8 X53CrMnNiN 21-9 X50CrMnNi-NbN 21-9 1.4875 1.4871 1.4882 Stainless Steel Pipe Round Steel Pipe Welded Pipe Price | |||
| Specification &Standard | ASTM/ASMES A312 GR. TP304, 304L, 304H, 310S, 310H, 316, 316L, 347, 347H snd etc;ASTM/ASMES A358 CL1&CL3 GR. 304, 304L, 304H, 310S, 310H, 316, 316L, 347, 347H snd etc;Duplex ASTM / ASME SA 790 UNS NO S31803 , S32205 and etc.Inconel ASTM B444 UNS06625 , Incoloy ASTM B423 UNS08825 Hastelloy C276, Monel 400,ASTM B111 C68700, C44300, C70600, C71500, | |||
| 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 | |||
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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 (%)
| X55CrMnNiN 20-8 Chemical element content (%) | ||||||||
| Element | C | Si | Mn | P | S | Cr | Ni | N |
| Min | 0.5 | - | 7 | - | - | 19.5 | 1.5 | 0.2 |
| Max | 0.6 | 0.25 | 10 | 0.045 | 0.03 | 21.5 | 2.75 | 0.4 |
| X55CrMnNiN 20-8 Mechanical properties | |||||||
| Condition | Test temperature | Heat treatment or state | Tension strength σb Mpa |
Yield point σs Mpa |
Elongation after fracture or elongation δ % |
Sectional shrinkage ψ % |
Hardness HBW |
| Steel | Room temperature | Controlled cooled | ≈1300 | ≈385 | |||
| Steel | Room temperature | Quenched at 1000°C to 1100°C | ≤1300 | ≤385 | |||
| Steel; d≤40 | Room temperature | +AT +P | 900~1150 | ≥550 | ≥8 | ≥10 | HRC≥28* |
| Steel | 500°C | +AT +P | ≥640 | ≥350 | |||
| Steel | 550°C | ≥590 | ≥300 | ||||
| Steel | 600°C | ≥540 | ≥250 | ||||
| Steel | 650°C | ≥490 | ≥230 | ||||
| Steel | 700°C | ≥440 | ≥220 | ||||
| Steel | 750°C | ≥360 | ≥200 | ||||
| Steel | 800°C | ≥290 | ≥170 | ||||
| +QT = quenched and tempered; +AT = solution annealed; +P = precipitation hardened;+A=Soft annealed *Austenitic grades X55CrMnNiN20-8 to X33CrNiMnN23-8 may show hardness values which cannot be converted into tensile strength values acording to the standard tables commonly used in laboratories. Therefore, in cases of dispute only the tensile strength value shall be considered as valid. |
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| X53CrMnNiN 21-9 Chemical element content (%) | ||||||||
| Element | C | Si | Mn | P | S | Cr | Ni | N |
| Min | 0.48 | - | 8 | - | - | 20 | 3.25 | 0.35 |
| Max | 0.58 | 0.25 | 10 | 0.045 | 0.03 | 22 | 4.5 | 0.5 |
| X53CrMnNiN 21-9 Mechanical properties | |||||||
| Condition | Test temperature | Heat treatment or state | Tension strength σb Mpa |
Yield point σs Mpa |
Elongation after fracture or elongation δ % |
Sectional shrinkage ψ % |
Hardness HBW |
| Steel | Room temperature | Controlled cooled | ≈1300 | ≈385 | |||
| Steel | Room temperature | Quenched at 1000°C to 1100°C | ≤1300 | ≤385 | |||
| Steel; d≤40 | Room temperature | +AT +P | 950~1200 | ≥580 | ≥8 | ≥10 | HRC≥30* |
| Steel | 500°C | +AT +P | ≥650 | ≥350 | |||
| Steel | 550°C | ≥600 | ≥330 | ||||
| Steel | 600°C | ≥550 | ≥300 | ||||
| Steel | 650°C | ≥500 | ≥270 | ||||
| Steel | 700°C | ≥450 | ≥250 | ||||
| Steel | 750°C | ≥370 | ≥230 | ||||
| Steel | 800°C | ≥300 | ≥200 | ||||
| +QT = quenched and tempered; +AT = solution annealed; +P = precipitation hardened;+A=Soft annealed *Austenitic grades X55CrMnNiN20-8 to X33CrNiMnN23-8 may show hardness values which cannot be converted into tensile strength values acording to the standard tables commonly used in laboratories. Therefore, in cases of dispute only the tensile strength value shall be considered as valid. |
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| X50CrMnNi-NbN 21-9 Chemical element content (%) | ||||||||||
| Element | C | Si | Mn | P | S | Cr | Ni | N | W | More |
| Min | 0.45 | - | 8 | - | - | 20 | 3.5 | 0.2 | 0.8 | Nb+Ta:1.8~2.5 |
| Max | 0.55 | 0.45 | 10 | 0.045 | 0.03 | 22 | 5.5 | 0.4 | 1.5 | |
| X50CrMnNi-NbN 21-9 Mechanical properties | |||||||
| Condition | Test temperature | Heat treatment or state | Tension strength σb Mpa |
Yield point σs Mpa |
Elongation after fracture or elongation δ % |
Sectional shrinkage ψ % |
Hardness HBW |
| Steel | Room temperature | Controlled cooled | ≈1300 | ≈385 | |||
| Steel | Room temperature | Quenched at 1000°C to 1100°C | ≤1300 | ≤385 | |||
| Steel; d≤40 | Room temperature | +AT +P | 950~1500 | ≥580 | ≥12 | ≥15 | HRC≥30* |
| Steel | 500°C | +AT +P | ≥680 | ≥350 | |||
| Steel | 550°C | ≥650 | ≥330 | ||||
| Steel | 600°C | ≥610 | ≥300 | ||||
| Steel | 650°C | ≥550 | ≥270 | ||||
| Steel | 700°C | ≥480 | ≥250 | ||||
| Steel | 750°C | ≥410 | ≥230 | ||||
| Steel | 800°C | ≥340 | ≥200 | ||||
| +QT = quenched and tempered; +AT = solution annealed; +P = precipitation hardened;+A=Soft annealed *Austenitic grades X55CrMnNiN20-8 to X33CrNiMnN23-8 may show hardness values which cannot be converted into tensile strength values acording to the standard tables commonly used in laboratories. Therefore, in cases of dispute only the tensile strength value shall be considered as valid. |
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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 industry, stainless steel is a cornerstone in exhaust systems, which constitute over half of the stainless steel applications in vehicles. Ferritic stainless steel is predominantly utilized, particularly types 409L and 436L stainless steel welded pipes for components such as mufflers and converters. The industry accounts for approximately 1.5% of the total stainless steel pipe consumption, showing a preference for seamless over welded pipes at a ratio of about 2:1.
Petrochemical and Fertilizer Industry
The petrochemical industry exhibits a substantial demand for stainless steel pipes, with a primary focus on seamless varieties. Popular specifications include 304, 321, 316, 316L, 347, and 317L, accommodating outer diameters from 18mm to 610mm and wall thicknesses from 6mm to 50mm. These pipes are integral to applications such as furnace tubes, material conveying tubes, and heat exchanger tubes, particularly within medium and low-pressure pipeline contexts.
Water and Gas Fluid Transport
Our premium stainless steel pipes are engineered to excel in fluid transport systems, providing unmatched corrosion resistance that surpasses cast iron, carbon steel, and plastic alternatives. As some of the most advanced water purification materials on the global stage, these pipes and their accompanying equipment redefine reliability and efficiency in water management solutions.
Stainless steel pipes are the quintessential choice for the water industry, perfectly suited for tasks ranging from water preparation and storage to transportation, purification, regeneration, and desalination. With an impressive annual demand of approximately 25,000 tons, these pipes stand as a testament to exceptional quality and performance.
Equipment Manufacturing and Maintenance
Within the dynamic equipment manufacturing sector, stainless steel pipes are indispensable, with a yearly consumption exceeding 20,000 tons, particularly in sanitary or antibacterial grades. Crafted from materials like SUS304 and 316L, these pipes meet the rigorous standards required by the food and biopharmaceutical industries. Their unparalleled combination of durability and antimicrobial properties makes them highly sought after in kitchen equipment, food industry worktables, medical instruments, and household items such as towel brackets and refrigerators.
Qualitative Materials:
We are committed to utilizing only high-grade raw materials, ensuring our products boast unrivaled strength, resilience, and longevity, consistently outperforming expectations.
Advanced Technology:
Our cutting-edge manufacturing processes incorporate the latest technologies, including advanced smelting, continuous casting, and rolling techniques, guaranteeing superior product quality at every stage.
Customized Service:
Our bespoke design and manufacturing services are meticulously tailored to meet the unique needs and specifications of each of our valued customers, ensuring a perfect fit for their individual requirements.
FAQ
Q1: Why choose your company?
A: With over 16 years of industry expertise and the advantage of owning a cutting-edge factory, Shanghai Bolaisheng Metal Group Co., Ltd. delivers unparalleled service quality. Our professional and dedicated sales team guarantees a seamless customer experience, establishing us as a trusted partner for all your stainless steel tubing needs.
Q2: What are your terms of payment?
A: Our stringent payment terms require a 30% T/T deposit upfront, with the remaining 70% payable before delivery, ensuring a secure and trustworthy transaction for both parties involved.
Q3: What are your delivery terms?
A: We offer an array of comprehensive delivery terms, including FOB, CFR, CIF, and EXW, providing flexibility to accommodate your unique shipping requirements with ease.
Q4: What is your delivery time?
A: Our standard lead time ranges from 7 to 15 days post deposit receipt, ensuring your order is delivered promptly and efficiently, meeting your operational timelines.
Q5: Can you provide samples?
A: Yes, we proudly offer complimentary samples if available in stock. However, the transportation fees are the buyer's responsibility, allowing you the opportunity to evaluate our top-tier product quality prior to making a significant commitment.
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