Innovative
Building method

Product

High Frequency Welded H- Beams (HFW)

  • High Frequency welding also known as Fusion welding process.
  • Electron beam welding (EBW) is a fusion joining process that produces a weld by impinging a beam of high energy electrons to heat the weld joint. An electron beam welding gun uses a high intensity electron beam to target a weld joint.
  • The weld joint converts the electron beam to the heat input required to make a fusion weld.
  • Uses High Frequency welding technology which continuously welds three strips of steel together
  • Customised Small cross sections e.g. Minimum from 75mmx75mm to maximum section of 500mm x 300mm
  • Customised thickness of H section, e.g. Min. from 2.0 mm to 10 mm
  • Customised Cutting to length to maximize efficiency and minimize wastages
  • Engineer may design according to specific requirements and not be limited by standard Hot Roll H beam sizes thus enhancing efficiency and reducing costs significantly

The Benefits of Electron Beam Welding

  • Low Contamination Vacuum
  • Narrow Weld Zone
  • Low Distortion Level

Various Sizes of HFW H Beam Products:

HFW members could achieve sizes that are not found in Hot-rolled steel.
This in turn will provide an exact member size requires by design hence lowering the cost of material

Special Silted steel coil

To design requirement thickness & width before feeding into the production line

Three Pre-straightened steel strips

From the uncoiled steel rolls before entering the Patented” weld head for High Frequency Welding.

Three Steel Strips

Being Welded bythe High Frequency Welding Process (automated process)

Cutting of the welded H section

After stress relieve & straightening (automated process)

On production line quality inspection:

Pull-up test for every batch produced:

Advantages of Light Weight Structure:

  • Fast construction time to maximize returns for developers
  • Large cost savings by reducing structure weights, as structural members could be customised manufacture to specific design thicknesses, cross sections and lengths
  • Maximize container loading thereby reduces shipping costs
  • Minimum wastages during production and fabrication
  • Efficiency & Flexibility for architectural and structural designs

More members per container= lesser shipping cost

No Dependency on Lifting Equipment

Advantages of Light Weight Structure:

HFW H section

Widely use for secondary structure for large building.

widely use as Main structurer for Muti storey residential house.

Advantages of HFW

Applicable for thicknesses from 2.5mm, resulting in Light weight steel structure No Heavy hoisting euipments are required for Installation

Applications

Main Structure for Residential Buildings ( 3 storey & Below) Secondary Structure for High Rise Buildings

Production Range Of HFW H Section

Un-Equal Flange cross section :
Equal Flange cross section :
H-Height
B1-Width of Upper Flange
B2-Width of Lower Flange
tw-Thickness of Web
tf1-Thickness of Upper Flange
tf2-Thickness of Lower Flange
H-Height
B-Width
tw-Thickness of Web
tf-hickness of Lower Flange

H Height Min 60mm Max 500mm
B Width Min 50mm Max 250mm
tw Thickness of Web Min 2.2mm Max 8.0mm
tf Thickness of Flange Min 2.3mm Max 10.0mm

Dimension, Shapes & Tolerances

Item Allowable Tolerance Diagram
Height（H）
±1.5mm
Width（B）
 ±1.5mm
Slant of web（△）
 B<=200mm B/100
B>200
Eccenticth of web（S）

 2.0mm
Web bending（U）
 H/100
Shearing slant of ends（E）
 3.0mm
Length（L）
 +20mm
Bending（C）
 L*0.10%

Mechanical Properties GB/T 1591-94
Structural steel Q345 ( High tensile)

Serial No. Thickness
（mm） 		TensileStrength ( N/mm2) Min. Yield Strength
（N/mm2) 		Elongation Bending Test 180 V-Impact Testing
d=Bending Dia. Testing Temperature Joule （J）
a=Testing Thickness
Q345 (16Mn) ≤16 510-660 ≥345 ≥22 d=2a - -
＞16～25 490-640 ≥325 ≥21 d=3a 20 ≥27
＞25～36 470-620 ≥315 d=3a 0 ≥27
SM490YA ≤16 490-610 365 ≥19 - - -
SM490YB ＞16～40 355 - 0 ≥27

Available Sizes in HFW

S.no Dimensions in mm
 Cross Sectional Area
(A ) in mm2
 Weight kg/m
Height (H)
 Width (B)
 Thickness of Web (tw)
 Thickness of Flange (tf )
1 100 50 2.3 3.2 5.35 4.2
2 3.2 4.5 7.41 5.82
3 100 4.5 6.0 15.96 12.53
4 6.0 8.0 21.04 16.52
5 120 120 3.2 4.5 14.35 11.27
6 4.5 6.0 19.26 15.12
7 150 75 3.2 4.5 11.26 8.84
8 4.5 6.0 15.21 11.94
9 100 3.2 4.5 13.51 10.61
10 4.5 6.0 18.21 14.29
11 150 4.5 6.0 24.21 19
12 6.0 8.0 32.04 25.15
13 200 100 3.0 3.0 11.82 9.28
14 3.2 4.5 15.11 11.86
15 4.5 6.0 20.46 16.06
16 6.0 8.0 27.04 21.23
17 150 3.2 4.5 19.61 15.4
18 4.5 6.0 26.46 20.77
19 6.0 8.0 35.04 27.51
20 200 6.0 8.0 43.04 33.79
21 250 125 3.0 3.0 14.82 11.63
22 3.2 4.5 18.96 14.89
23 125 4.5 6.0 25.71 20.18
24 4.5 8.0 30.53 23.97
25 6.0 8.0 34.04 26.72
26 150 3.2 4.5 21.21 16.65
27 4.5 6.0 28.71 22.54
28 4.5 8.0 34.53 27.11
29 6.0 8.0 38.04 29.86
30 200 6.0 8.0 46.04 36.14
31 300 150 3.2 4.5 22.81 17.91
32 4.5 6.0 30.96 24.3
33 4.5 8.0 36.78 28.87
34 6.0 8.0 41.04 32.22
35 200 6.0 8.0 49.04 38.5
36 350 150 3.2 4.5 24.41 19.16
37 4.5 6.0 33.21 26.07
38 6.0 8.0 44.04 34.57
39 175 4.5 6.0 36.21 28.42
40 4.5 8.0 43.03 33.78
41 6.0 8.0 48.04 37.71
42 200 6.0 8.0 52.04 40.85
43 400 150 4.5 8.0 41.28 32.4
44 200 6.0 8.0 55.04 43.21
45 4.5 9.0 53.19 41.75
46 6.0 9.0 58.92 46.25
47 450 200 4.5 8.0 51.53 40.45
48 6.0 8.0 58.04 45.56
49 4.5 9.0 55.44 43.52
50 6.0 9.0 61.92 48.61
51 250 4.5 8.0 59.53 46.73
52 6.0 8.0 66.04 51.84
53 4.5 9.0 64.44 50.59
54 6.0 9.0 70.92 55.67
55 500 500 4.5 8.0 53.78 42.22
56 6.0 8.0 61.04 47.92
57 4.5 9.0 57.69 45.29
58 6.0 9.0 64.92 50.96
59 250 4.5 8.0 61.78 48.5
60 6.0 8.0 69.04 54.2
61 4.5 9.0 66.69 52.35
62 6.0 9.0 73.92 58.03
63 600 200 6.0 10.0 74.8 58.72
64 300 6.0 10.0 94.8 74.42

this page is

under construction

The page will be updated soon.
...