Black Annealed Iron Ms Square Rectangular Tube

Black Annealed Iron Ms Square Rectangular Tube

Material: Q195, Q215, Q235, Q235B, Q345B
OD: 20-355mm
WT: 1.0-10mm
Length: 4-8m
Zinc coating: 200-400g/m2
Quality grade: First grade
Certification: ISO9001
MOQ: 10 MetricTons
Deliver Time: Depending on the quantity
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Product Details


Product Details

Package: Our products can be packed in bulk, or pvc bag; We also can package as customers' requirement.
Payment terms: T/T(30% deposit and 70% balance against the copy of B/L), L/C
Applications: Construction Foundation Piles, Steel Structure Building, For Low-Pressur Fluid service, Steel Structure Bridges etc.

We can do special orders as customers' requirement!
We also can provide all kinds of steel hollow pipes.
Sincerely welcome foreign and domestic customers coming throughout the business negotiations.

Product Description

Astm A500 Carbon Steel Rectangular And Square Pipe For Glass Curtain Wall

Square pipe and rectangular pipe
Square pipe and rectangular pipe is equal and unequal length of the steel pipe. Is made of steel after the process of rolling. Generally the strip is unpacked, flattened, curled, welded to form a round tube, and then rolled into a square tube and then cut into the required length.

Square pipe and rectangular pipe application
Mainly used in engineering construction, glass curtain wall, doors and windows decoration, steel structure, guardrail, machinery manufacturing, automobile manufacturing, home appliance manufacturing, shipbuilding, container manufacturing, electricity, agricultural construction, agricultural greenhouses, bicycle racks, motorcycle racks, shelves, fitness equipment Water and gas, gas, sewage, air, heating and other fluid transportation, fire and support, construction and other fields.


Product NameNew Design Iron Square/Rectangular Tube Ms ERW Black Square Hollow Section Steel Pipe/Tubes(rhs/shs)
MaterialQ195, Q235, Q345; ASTM A53 GrA,GrB; STKM11,ST37,ST52, 16Mn,etc.
Wall Thickness0.7MM~30MM
LengthLength:Single random length/Double random length
5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques
StandardJIS G3466, EN 10219, GB/T 3094-2000, GB/T 6728-2002
GradeGrade A, Grade B, Grade C
Section ShapeSquare, Rectangular, Round,
Techniquems rectangular pipe
PackingBundle, or with all kinds of colors PVC or as your requirements
EndsPlain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
MOQ1 Tons, more quantity price will be lower
Surface Treatment

1. Galvanized

2. PVC,Black and color painting

3. Transparent oil,anti-rust oil

4. According to clients requirement

Product Application:

1. Fence, greenhouse, door pipe,greenhouse
2. Low pressure liquid, water, gas, oil, line pipe
3. For both indoor and outdoor the building construction
4. Widely used in scaffolding construction which is much cheaper and convenient


Tianjin OF China

CertificatesAPI ISO9001-2008,SGS.BV 
Delivery Time

Usually within 10-45 days after receipt of advance payment 

Product Overviews

Astm A500 Black Annealed Iron Ms Square Rectangular TubeAstm A500 Black Annealed Iron Ms Square Rectangular TubeAstm A500 Black Annealed Iron Ms Square Rectangular Tube 



1. It can pack by container or bulk vessel.
2. 20ft container can load 25 tons, 40ft container can load 26 tons.
3.Standard export seaworthy package, it use wire rod with bundle according product's size.
4.We can make it as your requirement.

Our Advantage

1, 24 hour online to answer your question.
2, OEM and Customer drawing is acceptable.
3, Sample is available.
4, Labels and packaging customized according to your need.
5, Help you find the lowest freight, the fastest and satisfactory Transport company for your reference.
6, After sales service Installation instructions or others inquiry.

Certifications of product


Product Applications


Product manufacturing process


The Workshop

Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

No.92 JieFang East Road ,Cangzhou City, Hebei,P.R.China.

 has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation. 

We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel spiral pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.

工厂 (1)

The Packing Process Flow


Why to choose us?

1.We provide products to our customers individual specifications and special needs with competitive price and best service.

2. Immediate respond

We will be 24/7 on line at your services. Provide one-to-one service with our sincerity.

3. Professional suggestions

We could provide you the professional suggestion with our expertise acumen.

4. Short delivery period

We are based on a long-term cooperation with several major domestic steel company with an outstanding advantage is sufficient supply. Shorter the supplying period.




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