Guanheng is specialized in steel structure engineering since 1987.
Description:
The materials of angle tower are mainly made of angle steel.According to the number of cross sections,there are triangle tower, for angle tower, pentagonal tower,hexagonal tower,octagonal tower,the most popular for communication tower are: triangle tower and four angle tower. The wind load coefficient of angle tower is small and wind resistance is stronger.The connection between angle steel and angle steel are by pieces.its character is bolt tension, hard to destroy and less cost for maintenance.Angle tower is square layout,the main characteristic is that assembling by angle steel, less processing and welding,scope of use: filed self-supporting tower, roof tower.
Origin | China | Minimum order | 1set | |
Payment term | L/C, T/T | Shipment term | FOB, C&F, CIF | |
Height | 10 to 45meter | |||
Material | Q345B/A572,Minimum yield strength >=345N/mm2; Q235B/A36,Minimum yield strength >=235N/mm2; According to your request | |||
Tolerance | According to your request | |||
Surface test | Hot galvanization based on the standard of the steel technical specification on ASTM A123 , or the customer’s request. | |||
Connection Mode | Flange connection | |||
Standard | ISO 9001:2008, ISO14001:2005, OHSAS18001 | |||
Per Section Length | Below 6 meters | |||
Wind Pressure | 0.35-1.00 KN/m² | |||
Hot-dip Galvanization thickness | Plating thickness less than 5mm, Zinc thickness more than 65μm, Plating thickness more than or equal 5mm, Zinc thickness more than86μm, tolerance less than 10μm | |||
Production Procedure | Original material test→cutting→bending→welding(fore-and-aft )→measurement checking→flange welding→making hole→making sample→surface clean→hot-galvanization and surface preparation→painting→re-check→packing | |||
Packing | Pack in plastic paper or under customer’s request | |||
Shipment Date | Quantity | Delivery day | ||
50 sets | 30 days |
Technology
Durable
★ We are very strictly in controlling the thickness of all the parts in hot-dip galvanization,all those parts stay with corrosion for years.If the process of hot dip galvanization is not good, it is easy to be rusted and affect the safety of the tower.
1. All the original materials and finished products should be 100% checking.
2. We already obtain the ISO 9001:2008, ISO14001:2005 and OHSAS18001 quality and safety certificate.
Split Charging → Partial Packing → Part Remark → Loading → Shipment
Our company is a professional steel tower manufacturer with ISO certificates based in China..
Supported by the team of professional engineers,technicians,skill workers,we are dedicated to providing our global customers with high quality telecom towers .
The detailed information is specified in the following table.We sincerely look forward to cooperating with you.
1.key Details:
Place of Origin: Hebei, China (Mainland) ; Brand Name: Jaoyao or OEM ; Model Number: Telecom Tower
Surface treatment: Hot Dip Galvanizied or painted.
2.Packaging & Delivery:
Packaging Details: Telecom tower will be bundled by Galvanized strapping as per client's requirements.
Deliver:Shipped in 20 days after payment from Tianjin port
Tower members: One steel tower is separated into several bundles.
Bolts: Packing material is robust nylon bag or steel drum.
3. Technical Data
Design | ||
1. Design Code | TIA/EIA-222-G/F | |
Structure Steel | ||
2. Grade | Mild Steel | High Tensile Steel |
GB/T 700:Q235B, Q235C,Q235D | GB/T1591:Q345B, Q345C,Q3455D | |
ASTM A36 | ASTM A572 Gr50 | |
EN10025: S235JR, S235J0,S235J2 | EN10025: S355JR, S355J0,S355J2 | |
3. Design Wind Speed | Up to 250 km/h | |
4. Allowable deflection | 0.5 ~1.0 degree @ operational speed | |
5. Tension strength (Mpa) | 360~510 | 470~630 |
6. Yield strength (t≤16mm) (Mpa) | 355 | 235 |
7. Elongation (%) | 20 | 24 |
8. Impact strength KV (J) | 27(20°C)---Q235B(S235JR) | 27(20°C)---Q345B(S355JR) |
27(0°C)---Q235C(S235J0) | 27(0°C)---Q345C(S355J0) | |
27(-20°C)---Q235D(S235J2) | 27(-20°C)---Q345D(S355J2) | |
Bolts & Nuts | ||
9. Grade | Grade 4.8, 6.8, 8.8 | |
10. Standards for mechanical properties | ||
10.1 Bolts | ISO 898-1 | |
10.2 Nuts | ISO 898-2 | |
10.3 Washers | ISO 6507-1 | |
11. Standards for Dimensions | ||
11.1 Bolts | DIN7990, DIN931, DIN933 | |
11.2 Nuts | ISO4032, ISO4034 | |
11.3 Washers | DIN7989, DIN127B, ISO7091 | |
Welding | ||
12. Method | CO2 Shielded Arc Welding & Submerged Arc Welding(SAW) | |
13. Standard | AWS D1.1 | |
Marking | ||
14. Method of marking of the members | Hydraulic Press Stamping | |
Galvanizing | ||
15. Galvanization standard of steel sections | ISO 1461 or ASTM A123 | |
16. Galvanization standard of bolts and nuts | ISO 1461 or ASTM A153 | |
Test | ||
17. Factory test | Tensile test,Elements analysis, Sharpy test(impact test), Cold Bending, Preece test,Hammer test | |
Capacity | ||
18. Maximum Production Capacity | 50,000 TON per annum |
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