Tianjin Tianyingtai Steel Pipe Co., Ltd. is one of the most credible manufacturers and suppliers of astm a500 grade b 50*50 black hollow section square steel pipe in China. Welcome to consult the quotation and import cheap astm a500 grade b 50*50 black hollow section square steel pipe made in China here from our factory.
Product Name | ASTM A500 grade b 50*50 black hollow section square steel pipe |
Wall Thickness | 0.6mm-12mm |
Length | 5.5m-12m |
Outer diameter | 0.3mm-300mm |
Tolerance | Wall Thickness:±0.05MM Length:±6mm Outer Diameter:±0.3MM |
Shape | Round, Square, Rectangle, Oval, Deformed |
Material | Q195-Q345, 10#-45#,195-Q345, Gr.B-Gr.50, DIN-S235JR, JIS-SS400, JIS-SPHC, BS-040A10 |
Technique | Cold Rolled, Hot Rolled, ERW |
Surface treatment | Black annealing, bright annealing, None annealing |
Standard | ASTM, DIN, JIS, BS |
Certificate | ISO, CE |
Payment terms | 30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100% Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A |
Delivery times | Delivered within 30 days after receipt of deposit |
Package | 1. Packed with 8 bundles tightened with metal belt and plastic wrapped if need 2. According to customer’s requirement |
Loading port | Xingang, China |
Application | Widely used in furniture,interior decoration, fluid pipeline, petroleum and natural gas industry, drilling, pipeline, structure |
Advantages | 1. Reasonable price with excellent quality 2. Abundant stock and prompt delivery 3. Rich supply and export experience, sincere service |



black mild square tube hollow section
Packaging & Shipping



Company Information
black mild steel square tube hollow section
Tianjin tianyingtai Steel Pipe Co., Ltd. was established in 2001 January, the company is located in China's steel production base, Jinghai County Economic Development Zone Tianjin city. The east of Tianjin port and Tianjin International Airport, west of Jinghu railway, Beijing-Fuzhou Expressway, the geographical position is superior, the traffic is convenient, has a good business environment.
Tianyingtai steel company main products: galvanized strip steel pipe, welded pipe, galvanized pipe, spiral pipe, rectangular pipe and etc.. The company always adhere to the quality first, customer first service. Companies in strict accordance with the ISO9001-2008 standard established a quality management system, from research and development, raw material procurement, manufacturing, testing control, transport to the after sale services to establish a set of perfect management system. In an effort to improve the level of management and more focus on customer satisfaction, we provide qualified and satisfactory products to customers, continue to meet customer demand.


Our Services
black mild steel square tube hollow section
Your inquiry related to our product & price will be replied within 24hours.
• Well-trained & experienced staff are to answer all your inquiries professionalin English of course.
• OEM is highly welcomed. We have strong R&D team here to help.
• Your business relationship with us will be confidential to any third party.
• Good after-sale service offered, please get back if you got question


Related product:

FAQ
Q1:What about the quality?
A:Third party inspections are always welcomed.as part of our dedication to the industry, we do
make arrangements for such inspections-ABS,DNV,BV,ect.
Q2: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock,
it is according to quantity.
Q3:Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q4:May I customize the steel pipe?
A:Yes, you can, we can manufacture according to your requirement, you can send the CAD or
design drawing to us.
Q5:Any Value-added Services?
A:Fottunately for you,we are very experience in this industry.we have equipped our warehouse
with the necessities to perform in-house painting,coating,and pipe cutting.
Q6: How about the trade terms?
A: EXW, FOB, CFR, CIF will be accepted. Q1:What about the quality?
A:Third party inspections are always welcomed.as part of our dedication to the industry, we do
make arrangements for such inspections-ABS,DNV,BV,ect.
Q2: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock,
it is according to quantity.
Q3:Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q4:May I customize the steel pipe?
A:Yes, you can, we can manufacture according to your requirement, you can send the CAD or
design drawing to us.
Q5:Any Value-added Services?
A:Fottunately for you,we are very experience in this industry.we have equipped our warehouse
with the necessities to perform in-house painting,coating,and pipe cutting.
Q6: How about the trade terms?
A: EXW, FOB, CFR, CIF will be accepted.
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