Steel Welded Pipe Scaffolding Carbon Black Tube Square Hollow Section

• Customization: Available
• Type: Welded
• Technique: ERW
• Surface Treatment: Black
• Usage: Pipeline Transport, Construction & Decoration
• Section Shape: Square
• Product Name: Ms Square Tube
• Keyword: Square Hollow Section
• Techinical Process: Oiled Painting
• Color: Black
• Application: Building
• Length: 12
• Thinckness: 1.5mm-22mm
• Transport Package: 1) in Bundle with Strip; 2) First Packing by Plast
• Specification: 2-12meters
• Trademark: Jinnuo
• Origin: Jinnuo
• HS Code: 7306610000

Product Description

Square Hollow Section Description 
ERW Square and Rectangular Steel Pipes and Tubes for Shipbuilding and Bridge Structure
Buying ms hollow section steel square tube from China? We are your brain!
Stop your search now and stay with us, because--
1. We make sure to offer you HIGHER quality steel pipes than others in same price.
2. We make sure to ask you Lower price than others in same quality.
3. 80% our new customers give their reorders to us!

Item	MS hollow mild square erw square and rectangular Steel Pipes and Tubes
Material	SPHC, Q195,Q215,Q235,Q345,SAE1010,SAE1020, API Standard material, ASTM A53 A,B
Wall thickness	0.5-20 mm
outer diameter	SHS: 15*15-400*400mm, RHS: 20*25-400*300mm
Length	2m-12m or as per customers' requirement
Thickness Tolerance	+ 5%-
Surface Treatment	Black painting/varnished surface,anti-corrosion oil, galvanized
Pipe end	Plain end
Marking	As per customer's requirement
International Standard	ASTM A500, GB/T6728-2002
Usage	Mechanical & manufacture, Steel structure,Shipbuilding, Bridging ,Automobile chassis
Certificate	ISO,BV,API
ODM/OEM	available

Pictures of Square Tube


 Constituent of the material

Grade	C	Mn	Si	S	P	UTS(MPa)	YS(MPa)	EI(%)
Q235B	0.12-0.20	0.30-0.70	0.30	0.045	0.045	375-500	235	26
Q345B	0.12-0.20	1.20-1.60	0.20-0.55	≤0.045	≤0.045	510-600	345	22
20#(GB)	0.17-0.23	0.38-0.65	0.17-0.37	≤0.030	≤0.030	410-550	≥245	≥20

Packing and Shipping
For the detailed package of black iron pipe we could do as bellow:
1. Big size: by bulk
2. Small size:
1) in bundle with steel strip
2) inside with bundle, outside with plastic cloth
3) by bulk, then put into container directly
3. For container
1)20FT GP Container: pipe length less than 5.8m, qty max 27ton
2)40FT GP Container: pipe length less than 12m, qty max 26.5ton

Our Factory 
       Tianjin JN Steel Pipe Co., Ltd is our factory and Tianjin Kuifang International Co., Ltd is our import and export company, we do steel pipe business since 1985, our main products are black welded steel pipe(round,square,rectangular),galvanized steel pipe(round,square,rectangular), gi pipe, steel strip,cooperated products are galvanized steel coil, angle steel, beam etc,welcome you visit our factory




Certificate

Our exhibition and Team  

FAQ 
Q: Are you trading company or manufacturer ?
A: Yes ,we are the manufacturer,welcome to visit our company.
Q: Can you send us the sample? 
A: Yes, Yes, free samples can be supplied.
Q: How long is your delivery time?
15-30 days after receiving deposit.
Q: What payment terms can you accept?
 A:  T/T,100% L/C at sight, Cash, Credit card
Q.How about the delivery time?
A :15-30 days after receiving deposit
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