square pipe

Thickness:1mm-40mm, Sch 10 - Sch 160

Square Out Diameter: 1" x 1" to 16" x 16"

Surface Finished: 400 Grit Polished, 600 Grit Polished

Technoloty Method: Cold Drawn, Cold Rolled

Packing: Wooden box

Marking: CAN BE CUSTOMIZED

Applications:

Santary Seamless pipe and welded food steel tube be widely used in kinds of industries:

Petrochemical industry,Electricity,Nuclear energy,

Chemical fertilizer,Boiler,Light textile,

Paper making,Food,Dairy products,Make wine,Pharmacy bio-engineering,

Environment protection equipment,etc.

Wenzhou jianen products range: stainless steel pipe fittings, tube,sanitary valves,stainless steel filter housing,extractor systerm,filration systerm and so on.

Stainless Steel Rectangular Tube Size Chart

Rectangular Stainless Steel Tubing Sizes - (Sizes & Weights per foot)
Type-304/L and Type-316/L
Size range: ½" to 12" Diameter Wall thickness: .049" to .375
Gauge	18	16	14	11	7	1/4	3/8
Inches	0.049	0.065	0.083	0.12	0.18	0.25	0.375

1/2 x 3/4	0.38	0.05
1/2 x 1	0.5	0.65	0.82	1.13
1/2 x 1-1/2	0.63	0.83	1.03	1.45
1/2 x 2	0.82	1.08	1.37	1.93	2.09
3/4 x 1	0.56	0.74	0.92	1.29
3/4 x 1-1/4	0.63	0.83	1.03	1.45	2.17
3/4 x 1-1/2		0.99	1.25	1.77
3/4 x 2	0.89	1.17	1.48	2.09
1 x 1-1/4		0.99	1.25	1.77
1 x 1-1/2	0.82	1.08	1.37	1.93
1 x 2	0.97	1.27	1.51	2.26	3.63
1 x 2-1/2		1.49	1.88	2.66
1 x 3	1.3	1.69	2.14	3.06	4.46	6.01
1 x 4			2.72	3.88	5.68	7.67
1-1/2 x 2		1.49	1.88	2.66
1-1/2 x 2-1/2	1.3	1.69	2.14	3.06	4.46	6.01
1-1/2 x 3		1.93	2.45	3.48	5.28
1-1/2 x 4	1.81	2.38	3.03	4.33	5.3	7.58
2 x 3			2.72	3.88	5.68	7.67
2 x 4			3.29	4.97	6.9	9.35	13.64
2 x 5				5.67	8.06	10.89
2 x 6				6.26	9.27	12.68	18.52
2 x 8				8.02	11.9	16.35	23.53
2 x 10				9.46	14.07	18.77	28.53
3 x 4				5.67	8.06	10.89
3 x 5				6.26	9.27	12.68	18.52
3 x 6				7.22	10.52	13.8	21.03
4 x 6				8.02	11.9	16.35	23.35
4 x 8				9.46	14.07	18.77	28.53
4 x 10						22.71	33.54
4 x 12						26.03	38.55
6 x 8						22.51	33.35
6 x 10						26.27	38.91
All material offer as mill finish, polished 180 grit or polished 320 grit
All material produced to ASTM A554 specification (Latest Revision)

The qualifications required to produce square pipes mainly include the following aspects:

Production License: According to national or regional regulations and standards, producing pressure pipelines or square pipes requires obtaining the corresponding production licenses. These licenses are usually issued by relevant management agencies or regulators to prove that enterprises are eligible to engage in the manufacturing and production of square pipes.

Quality Management System Certification: Enterprises producing square pipes usually need to establish and implement a quality management system to ensure the quality and standards of their products. Common quality management system certifications include ISO 9001, which verifies whether the enterprise's quality management system meets international standards.

Technical Staff Qualifications: Producing square pipes requires qualified technical personnel with relevant professional knowledge and skills. These technicians may include process engineers, welding engineers, quality control personnel, etc. They should have relevant educational backgrounds and experience and may need to obtain specific qualification certifications.

Testing and Inspection Qualifications: The production of square pipes requires material testing, welding testing, and non-destructive testing. These tests and inspections should be performed by technical personnel holding the appropriate qualifications to ensure the product meets quality and standard requirements.

Special Equipment Manufacturing License (if applicable): For some specific types of square pipes, if they are classified as special equipment (such as boilers, pressure vessels, etc.), enterprises may also need to obtain special equipment manufacturing permits.

Other Possible Qualifications: According to specific national or regional regulations, other specific qualifications may be required, such as environmental certification and safety production permits.

When applying for these qualifications, enterprises may need to provide detailed application materials, including the basic information about the enterprise, production capacity, technical personnel, quality management system documents, and a list of inspection equipment. The specific application process and requirements may differ by country or region. Enterprises need to understand and comply with local regulations and standards.

It should be noted that the above-mentioned qualification requirements may not be applicable to all types of square pipe production, as the use, materials, and production technologies of square pipes vary. Therefore, when applying for qualifications, enterprises should conduct specific analyses and applications according to their actual situation and local regulations.

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