Active Member
|
[China]
Address: Fu Zhao Village，Guang Chuan Town, Jing County, Hengshui City, Hebei Province
Contact name:Anne Wang
Hebei Changtong Steel Structure Co., Ltd. |
|
|
| Raw Material | ||||
No.1
| Grade | Mild Steel | High Tensile Steel | |
GB/T 700:Q235B, Q235C,Q235D ASTM A36 EN10025: S235JR, S235J0,S235J2 | GB/T1591:Q345B, Q345C,Q3455D ASTM A572 Gr50 EN10025: S355JR, S355J0,S355J2 | |||
No.2
| Design Wind Speed | Up to 250km/h Or can be customized | ||
| No.3 | Acceptable Deflection | O.5~1.0 degree | ||
| No.4 | Tension Strength | 360~510 MPA | 470~630 MPA | |
| No.5 | Yield strength (t≤16mm) (Mpa) | 355 | 235 | |
| No.6 | Elongation (%) | 20 | 24 | |
| No.7 | 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) | |||
| Blots & Nuts | ||||
| No.1 | Grade | Grade 4.8, 6.8, 8.8 | ||
| No.2 | Standards for mechanical properties | |||
| No.3 | Bolts | ISO 898-1 | ||
| No.4 | Nuts | ISO 898-2 | ||
| No.5 | Washers | ISO 6507-1 | ||
| No.6 | Standards for Dimensions | |||
| Bolts | DIN7990, DIN931, DIN933 | |||
| Nuts | ISO4032, ISO4034 | |||
| Welding | ||||
| No.1 | Method | CO2 Shielded Arc Welding & Submerged Arc Welding(SAW) | ||
| No.2 | Standard | AWS D1.1 | ||
| Marking | ||||
| Method of marking of the numbers | Hydraulic Press Stamping | |||
| Galvanized | ||||
| No.1 | Galvanization standard of steel sections | ISO 1461 or ASTM A123 | ||
| No.2 | Galvanization standard of bolts and nuts | ISO 1461 or ASTM A153 | ||
| Test | ||||
| Factory test | Tensile test,Elements analysis, Sharpy test(impact test), Cold Bending, Hammer test | |||
Foliage and branch: made of same material as bark and properly designed according to the true tree leaves character such as leaf shape , size ,layout and quantities. The material of foliage also will guarantee radio-electric transparency and keep good mechanical and color characteristics (anti-UV) for a long time.
Trunk body: made of 24-sides polygonal steel poles,
composed of several shafts, and connected by sleeve joinT,Height
range can be varying from 15m to 35m, according to customer’s
requirements.
Hebei Chang Tong Steel Structure Co., Ltd..located in the hometown of China Tower, is a modern big-scale
professional company fabricating triangular
communicationtower,four-corner communication tower, cable tower,
single-tube tower,
camouflage communication tower and transmission
linetower.integrating design,fabrication and marketing,annual
production capacity reaches more than 30,000 tons.Company always
adhere to the business strategy of "survive
by quality, develop by credit, increase efficiency by science and
technology", continuously carry out technical transformation,
complete production equipment, reliable production process,adopt
advanced CNC angle steel production line, CNC sheet
production line and various supporting equipment. The equipment has
a first-class iron tower stakeout center, all of
which implement microcomputer lofting, which guarantees the
processing quality and provides a strong guarantee for
production, which can fully meet the design and production
requirements of various types of towers and substation
structures.
Our steel tower products have won good reputation from our
customers,including China tower,China mobile,China
unicom,China telecom,State grid and so on.In addition,our products
also were exported to many countries and
areas,including South American,Africa,Southeast Asia and Ireland.
