BST
Quality Guarantee
1 Year
Welded
Hot Rolled
Carbon Steel
Black
Pipeline Transport, Boiler Pipe, Hydraulic/Automobile Pipe, Oil/Gas Drilling, Food/Beverage/Dairy Products, Machinery Industry, Chemical Industry, Mining, Construction & Decoration, Special Purpose
Square
1.2-15mm
1-12 Meters
10 Tons
Carbon Steel
Q235 Q345 A500 Grade a, Grade B
HONGXIN
in Bundle with Steel Strips
20*20-600*600mm
China
73066100
Product Description
Grade | Q195,Q235,Q345,ASTM A36,ASTM A572 Grade 50,ASTM A500 Grade A |
Outer Diameter | 10*10-200*200 (Tolerance:+/-0.2mm) |
Wall Thickness | 0.25-15mm(Tolerance:+/-0.02mm) |
Length | 0.1m-12m or customized(Tolerance:-0/+0.02m) |
Processing Techniques | Steel Marking ,Stencil Printing or MarkingPunching,Cutting,Welding,Bending |
Zinc Coated | Pre-galvanized : 30-120g/m2; Hot dipped galvanized : 200-500g/m2 |
Standard | GB/T6728-2017,GB/T 3091-2008,GB/T 3094-2012 ASTM A500/A500M-21,ASTM A123/A123M-17 EN 10219-1:2006,EN 10240:1998 IS4923:2017 IS1239-2004 JIS G3466:2015,JI5 G3466:2015 |
Package | 1.bundle by steel strips 2.in bulk 3.in bundles with steel strips, and wrapped with waterproof cloth 4.Wooden pallet 5.according to client's requirement |
Usage | Construction,Water /GasTransportation,Mechanical Applications. Decoretion ,Product manufacture |
MOQ | 10 Tons |
Payment | T/T,L/C |
Delivery time | 10-15 days |



Square and Rectangular Steel Pipe size chart | ||
Square Hollow Section | Rectangular Hollow Section | Thickness |
20*20 25*25 30*30 | 20*40 30*40 | 1.2-3.0 |
40*40 50*50 | 30*50 25*50 30*60 40*60 | 1.2-4.75 |
60*60 | 50*70 40*80 | 1.2-5.75 |
70*70 80*80 75*75 90*90 100*100 | 60*80 50*80 100*40 120*80 | 1.5-5.75 |
120*120 140*140 150*150 | 160*80 100*150 140*80 100*180 200*100 | 2.5-10.0 |
160*160 180*180 200*200 | 200*150 250*150 | 3.5-12.0 |
250*250 300*300 400*200 350*350 350*300 | 250*200 300*200 350*200 350*250 450*250 400*300 500*200 | 4.5-15.75 |
400*400 280*280 450*300 450*200 | 400*350 400*250 500*250 500*300 400*600 | 5.0-20.0 |



1. In bundle with 8-9 steel stripes for small diameter steel pipe
2. Wrapped the bundle with water-proof bag and then bundled by steel stripes and nylon lifting belt in both ends
3. Loose package for big diameter steel pipe
4. As per clients requirement
Tianjin Hongxin International Trade Co.,Ltd
- Our company was founded in 2000,located in Shengfang of Hebei Province.
- We are comprehensive steel manufacturer
- Enjoying convenient traffic and occupying an advantageous location.
- Company covers an area of 30,000 square meters,construction area of 7,500 square meters.
- Own 15 ERW steel pipe production lines and 6 special precision steel pipe production lines.
- Our products have sold abroad more than 30 countries.




- We have our own factory.
- Factory was founded in 2004,it is an old factory.
- Price is lower 20USD per ton than other suppliers.
- Quality is good.
- We have large stock so that we delivery soon.
1. Pre-Sales Service
*We can offer one free sample length 20 cm with freight collected, if you want to buy our products and take our price.
2. After-Sales Service
*Quality/Quantity Claims: The Buyer is entitled to make both quality and quantity claim in writing against the Seller within 90 days after arrival at the port of destination.