S31100 S31200 S31260 S31500 S31803 S32001 S32003 Stainless Steel Square Pipe/Tube Seamless Metal Pipe Custom Size

• Customization: Available
• Type: Stainless Steel Pipes
• Standard: ASTM, AISI
• Model NO.: S31100 S31200 S31260 S31500 S31803 S32001 S32003
• 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

Stainless steel square tube is a hollow strip of steel, distinguished by its square cross-section. This design is particularly advantageous for transporting fluids such as oil, natural gas, water, gas, and steam. Additionally, its combination of light weight and high bending and torsional strength makes it an excellent choice for manufacturing mechanical parts and engineering structures.
Stainless steel square pipe classification: These pipes are categorized into seamless steel pipes and welded steel pipes. Depending on their cross-sectional shape, they can be square, rectangular, round, semicircular, hexagonal, equilateral triangle, octagonal, and other special shapes. While round steel pipes are most common, the versatility in shape allows for a broader range of applications.
To ensure the quality and pressure resistance of stainless steel square pipes under fluid pressure, hydraulic tests are conducted. Pipes that exhibit no leakage, wetting, or expansion under specified pressures are deemed qualified. Additionally, crimping, flaring, and flattening tests may be conducted based on standard requirements or customer specifications.
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	S31100 S31200 S31260 S31500 S31803 S32001 S32003 Stainless Steel Square 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 area

Our Advantages

Qualitative Materials:

We utilize only the highest-grade raw materials, ensuring our products deliver unparalleled strength, resilience, and longevity.

Advanced Technology:

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

Customized Service:

We offer bespoke design and manufacturing services to cater to the unique needs and specifications of our customers.

FAQ

Q1: Why choose your company?

A: With over 16 years of industry expertise and our own factory, we provide exemplary services supported by a professional and dedicated sales team.

Q2: What are your terms of payment?

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

Q3: What are your delivery terms?

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

Q4: What is your delivery time?

A: Our standard lead time is 7 to 15 days following receipt of the deposit.

Q5: Can you provide samples?

A: Yes, we offer free samples from available stock; however, transportation fees must be borne by the buyer.

Certification