Factory Wholesale Price ASTM651 662 668 S63198 S66220 S66285 Polished Mirror Tube Stainless Steel Round Pipe Custom Size

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI
• Model NO.: ASTM651 662 668 S63198 S66220 S66285
• Grade: 300 Series
• Certification: ISO
• Shape: Round
• Technique: Cold Rolled
• Surface Treatment: Polished
• Application: Construction/Indutry/Building/Chemical/Auto
• Processing Service: No.1/2b/Ba/No.4/8K/Sb/Hl/Embosses/Etched/Decorate
• Material: 200 Series/300 Series/400series
• Keyword: Welded Seamless Pipe Tube
• Transport Package: Standard Sea-Worthy Packing
• Specification: as required
• Trademark: bolaisheng
• Origin: China

Product Description

Stainless steel pipe is a type of hollow, elongated circular steel extensively used across various industries such as petroleum, chemical, medical, food, light industry, and mechanical instrumentation for transportation and structural components. With its lightweight properties, coupled with identical bending and torsional strength, it is equally favored in the production of mechanical parts, engineering structures, and commonly found in furniture and kitchenware.
Stainless steel pipes are categorized into ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, stainless steel pipes, bimetal composite pipes, and coated pipes to conserve precious metals and meet specialized requirements. These pipes cover a vast array of applications, technical specifications, and production techniques, with an outer diameter range of 0.1-4500mm and wall thickness of 0.01-250mm. To effectively identify their unique attributes, stainless steel pipes are classified by the following methods.

Product name	ASTM651 662 668 S63198 S66220 S66285 stainless steel tube/pipe
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
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.)

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 Requirement
Folding Automobile Industry
Stainless steel's primary application in the automotive sector is the exhaust system, which comprises over half of the stainless steel used in vehicles, predominantly ferritic stainless steel (80%). The exhaust system channels engine emissions via the intake pipe, front pipe, hose, converter, and center pipe, typically utilizing steel types such as 409L and 436L. Automotive mufflers largely employ stainless steel welded pipes. Notably, stainless steel pipes constitute approximately 1.5% of the overall stainless steel consumption in the automotive industry, with a usage ratio of 2:1 between stainless steel seamless pipes and welded pipes.
Folding Petrochemical Industry (Including the Fertilizer Industry)
The demand for stainless steel pipes in the petrochemical sector is substantial, primarily utilizing stainless steel seamless pipes. Common specifications include 304, 321, 316, 316L, 347, and 317L, with outer diameters ranging from 18-¢610 and wall thicknesses between 6mm-50mm. Specific applications within this industry encompass furnace tubes, material conveying tubes, and heat exchanger tubes, generally selecting specifications of Φ159mm and above for medium and low-pressure pipelines.
Folding Water, Gas, and Other Fluid Transport
Stainless steel pipes and their water transport systems are recognized as the most advanced water purification materials worldwide, offering superior corrosion resistance unmatched by cast iron, carbon steel, and plastic pipes.
For water preparation, storage, transportation, purification, regeneration, and desalination, stainless steel remains the optimal material choice. The annual demand in this sector is approximately 25,000 tons.
Folding Equipment Manufacturing and Maintenance
The equipment manufacturing and maintenance sector consumes over 20,000 tons of stainless steel pipes annually. This industry predominantly uses sanitary or antibacterial grade stainless steel pipes. Sanitary seamless pipes made from imported SUS304 and 316L meet specific requirements in food and biopharmaceutical media. Antibacterial stainless steel, with its exceptional properties and antibacterial advantages, sees growing demand in kitchen equipment, food industry worktables and utensils, medical equipment, tableware, towel brackets, refrigerators, and other applications.

Our Advantages

Qualitative Materials:

We use only top-grade raw materials to ensure our stainless steel products exhibit superior strength, resilience, and longevity.

Advanced Technology:

Our manufacturing processes leverage cutting-edge technologies, including advanced smelting techniques, continuous casting, and rolling processes.

Customized Service:

We provide tailored design and manufacturing services to meet the unique needs and specifications of our clients.

FAQ

Q1: Why choose your company?

A: With an impressive legacy spanning over 16 years in the industry and the advantage of our own manufacturing facility, we pride ourselves on delivering exceptional services. Our professional and dedicated sales team is committed to meeting and exceeding your expectations.

Q2: What are your terms of payment?

A: For your convenience and security, we require a 30% T/T deposit upfront. The remaining 70% balance is due before the delivery, ensuring a smooth and trustworthy transaction.

Q3: What are your delivery terms?

A: We accommodate various delivery terms including FOB, CFR, CIF, and EXW, providing flexibility to meet your specific logistics needs.

Q4: What is your delivery time?

A: Our standard lead time is efficiently set between 7 to 15 days following the receipt of the deposit, guaranteeing prompt and timely delivery to keep your projects on schedule.

Q5: Can you provide samples?

A: Absolutely, we are pleased to offer free samples if they are in stock. However, please note that transportation fees are the responsibility of the buyer.

Certification