ASTM622 660 S66220 S66286 N08020 N08367 N08700 Stainless Steel Round/Square Pipe/Tube Seamless Welded Pipe Custom Size

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI
• Model NO.: ASTM622 660 S66220 S66286 N08020 N08367 N08700
• Grade: 300 Series
• Certification: ISO
• Shape: Square
• 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

The stainless steel square tube, recognized for its hollow, square-shaped cross-section, is a versatile and robust material. Ideal for transporting various fluids, such as oil, natural gas, water, gas, and steam, this tube also excels in applications requiring both bending and torsional strength while maintaining a lightweight profile. Its superior characteristics make it an essential component in the fabrication of mechanical parts and engineering structures.
Classification of stainless steel square pipes encompasses two primary types: seamless steel pipes and welded steel pipes. Based on the cross-sectional shape, these pipes can be further categorized into square and rectangular pipes. While round steel pipes are widely prevalent, there are also specialized shapes like semicircular, hexagonal, equilateral triangle, and octagonal steel pipes that cater to niche requirements.
For stainless steel square pipes subjected to fluid pressure, rigorous hydraulic tests are imperative to ensure pressure resistance and quality. Pipes must exhibit no leakage, wetting, or expansion under specified pressures to be deemed qualified. Additionally, certain pipes undergo crimping tests, flaring tests, and flattening tests to meet industry standards or specific customer demands.
Square Tube Specification: Size Range: 5*5 to 150*150 mm; Thickness Range: 0.4 to 6.0 mm
Square Pipe Material Options: 304, 304L, TP304, TP316L, 316, 316L, 316Ti, 321, 347H, 310S

Product name	ASTM622 660 S66220 S66286 N08020 N08367 N08700 Stainless Steel Square/Round Tube
Grade	201,202,301,302,302HQ,303,304,304L,304F,309,310,310s,314,314l,316,316L,316Ti,316F,317,317l,321,409L,410,410S,416,420,420J1,420JS,430,430F,431,etc.
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.)

Application Areas

Our Competitive Advantages

Premium Quality Materials:

We employ top-grade raw materials that ensure our products offer unmatched strength, durability, and longevity.

Cutting-Edge Technology:

Our manufacturing process leverages advanced technology, including sophisticated smelting techniques, continuous casting, and high-precision rolling.

Personalized Service:

We provide customized design and manufacturing solutions tailored to meet the unique needs and requirements of our clients.

Frequently Asked Questions (FAQ)

Q1: Why should I choose your company?

A: With over 16 years of industry experience and our in-house manufacturing facility, we guarantee exceptional services supported by a highly skilled and dedicated sales team.

Q2: What are your payment terms?

A: We require a 30% T/T deposit upfront, with the remaining 70% payable prior to delivery.

Q3: What delivery terms do you offer?

A: Our delivery terms include FOB, CFR, CIF, and EXW.

Q4: What is your standard delivery time?

A: Our typical lead time ranges from 7 to 15 days post receipt of deposit.

Q5: Do you offer samples?

A: Yes, we provide free samples if they are available in stock, but the transportation fees must be borne by the buyer.

Certifications