Basic Info.
Product Description

Ingeniously crafted and meticulously designed, stainless steel square pipes are classified into two major types: seamless steel pipes and welded steel pipes (welded pipes). Diverse in their cross-sectional design, they include square, rectangular, and exclusive shapes like semicircular, hexagonal, equilateral triangle, and octagonal. Each shape caters to a wide spectrum of specialized applications with precision and versatility. While round steel pipes remain prevalent, these uniquely shaped options fulfill the specific demands of niche projects, offering exceptional accuracy and reliability that surpass conventional expectations.
The unparalleled reliability of stainless steel square pipes under fluid pressure is rigorously assured through comprehensive hydraulic testing, a pivotal procedure that verifies their resilience and enduring integrity. A pipe is deemed successful and qualified when it triumphantly withstands predetermined pressures, exhibiting no leaks, moisture, or expansion. These pipes may additionally undergo further evaluations, including crimping, flaring, and flattening tests. Such thorough assessments align with industry standards or specific client requirements to ensure their superior performance, unwavering quality, and enduring reliability.
Square tube specification: 5*5~150*150mm Thickness: 0.4~6.0mm
Square pipe material: 304, 304L, TP304, TP316L, 316, 316L, 316Ti, 321, 347H, 310S


Product name | 1 1 2 stainless steel tubing stainless steel square pipe Super Duplex Stainless Steel Pipe A790 S32760 | |||
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 Area




Our Advantages
Qualitative Materials:
We meticulously select only premium-grade raw materials, ensuring that our products stand out for their unparalleled strength, durability, and longevity. This attention to quality sets a benchmark for excellence and reliability that defines our brand.
Advanced Technology:
We revolutionize our production processes by integrating cutting-edge technology. Employing advanced smelting, continuous casting, and innovative rolling techniques, we guarantee unmatched quality that meets the sophisticated demands of modern engineering.
Customized Service:
We provide bespoke design and manufacturing services that are meticulously tailored to meet unique customer specifications and requirements, thereby ensuring complete satisfaction and a perfect fit for every project.
FAQ
Q1: Why choose your company?
A: With a rich legacy spanning over 16 years, our company distinguishes itself through a state-of-the-art manufacturing facility and a highly professional, dedicated sales team. We offer exceptional services that set us apart in the industry.
Q2: What are your terms of payment?
A: Our payment structure is designed for assurance and flexibility, requiring a 30% T/T deposit upfront, with the remaining 70% payable before delivery, thus accommodating various financial arrangements.
Q3: What are your delivery terms?
A: We offer versatile delivery terms, including FOB, CFR, CIF, and EXW, each tailored to meet our clients' varying preferences and logistical needs, ensuring convenience and reliability.
Q4: What is your delivery time?
A: Our efficient delivery timeline is set between 7 to 15 days post-receipt of the deposit, ensuring that our clients receive prompt and reliable service.
Q5: Can you provide samples?
A: Absolutely. We offer complimentary samples when available in stock, with transportation costs borne by the buyer. This allows clients to experience firsthand the exceptional quality of our products.Certification
