Steel Products
A large range of structural steel sections are available in New Zealand. The following sections and sizes are particularly useful for housing applications. All sections are produced in accordance with G300 AS/NZS3679 steel grade offering high strength and lightweight design solutions.
UNIVERSAL BEAMS (UB)
The 180 UB18.1 for example is 175mm deep(d), 90mm wide(bf) with 8mm flange(tf) and 5mm web (tw).
Universal Beams are 'I' shaped members designed to carry high loads over long spans. The thick flanges and thinner web efficiently proportions material to resist the high bending loads from beam applications.
A Universal Beam is designated as follows:
| 180 | UB | 18.1 |
|---|---|---|
| Nominal depth, d | Universal Beam | mass/lengh kg/m |
TAPER FLANGE BEANS (TFB)
The 125TFB for example is 125mm deep(d), 65mm wide(bf) with 8.5mm flange(tf) and 5mm web (tw).
Taper Flange Beams are similar in shape to Universal Beams except they have tapered flanges.
A Taper Flange Beam is designated as follows:
| 125 | TFB |
|---|---|
| depth, d | Taper Flange Beam |
UNIVERSAL COLUMNS (UC)
The 150 UC 37.2 for example is 162mm deep(d), 154mm wide(bf) with 18mm flange(tf) and 8mm web (tw).
Universal Columns are stockier, wider 'I' section members designed to carry high axial loads, for applications such as columns and piles etc. These members are generally heavier than other steel sections and are useful as supports for retaining walls and the like. They can also be used as beam sections where headroom is of concern.
A Universal Column is designated as follows:
| 150 | UC | 37.2 |
|---|---|---|
| Nominal depth, d | Universal Column | mass/length kg/ |
PARALLEL FLANGE CHANNELS (PFC)
The 180 PFC for example is 180mm deep(d), 75mm wide(bf) with 11mm flange(tf) and 6mm web (tw).
Parallel Flange Channels are a general purpose hot rolled 'C' section member useful in beam applications. PFC's provide excellent deflection resistance and strength characteristics. They are narrower than a UB of similar depth and provide a flat, flush back surface for mating with other building materials.
A Parallel Flange Channel is designated as follows:
| 180 | PFC |
|---|---|
| depth, d | Parallel Flange Channel |
UNEQUAL ANGLES (UA) AND EQUAL ANGLES (EA)
The 150x90x8 UA for example has leg lengths of 150mm (b1) and 90mm (b2) and 8mm thickness (t).
Angles are 'L' shaped sections and are ideal for use as lintels. One leg rests under the brickwork while the other resists the bending load over the window/door opening.
An Angle is designated as follows:
| 180 x 90 x 8 | UA or EA | ||
|---|---|---|---|
| leg length b1 | leg length b2 | thickness, t | Unequal Angle or Equal Angle |
Steel Products Specifications
UNIVERSAL BEAMS
| Designator | Mass (kg/m) | Depth, d | Flange Width, bf | Flange Thickness, tf | Thickness, tw |
|---|---|---|---|---|---|
| 180 UB 16.1 | 16.1 | 173 | 90 | 7.0 | 4.5 |
| 180 UB 18.1 | 18.1 | 175 | 90 | 8.0 | 5.0 |
| 180 UB 22.2 | 22.2 | 179 | 90 | 10.0 | 6.0 |
| 200UB 18.2 | 18.2 | 198 | 99 | 7.0 | 4.5 |
| 200 UB 22.2 | 22.2 | 202 | 133 | 7.0 | 5.0 |
| 200 UB 25.4 | 25.4 | 203 | 133 | 7.8 | 5.8 |
| 200 UB 29.8 | 29.8 | 201 | 134 | 9.6 | 6.3 |
| 250 UB 25.7 | 25.7 | 248 | 124 | 8.0 | 5.0 |
| 250 UB 31.4 | 31.4 | 252 | 146 | 8.6 | 6.1 |
| 250 UB 37.3 | 37.3 | 256 | 146 | 10.9 | 6.4 |
| 310 UB 32.0 | 32.0 | 298 | 149 | 8.0 | 5.5 |
| 310 UB 40.4 | 40.4 | 304 | 165 | 10.2 | 6.4 |
| 310 UB 46.0 | 46.0 | 307 | 166 | 11.8 | 6.7 |
PARALLEL FLANGE CHANNELS
| Designator | Mass (kg/m) | Depth, d | Flange Width, bf | Flange Thickness, tf | Thickness, tw |
|---|---|---|---|---|---|
| 150 PFC | 17.7 | 150 | 75 | 9.5 | 6.0 |
| 180 PFC | 20.9 | 180 | 75 | 11.0 | 6.0 |
| 200 PFC | 22.9 | 200 | 75 | 12.0 | 6.0 |
| 230 PFC | 25.1 | 230 | 75 | 12.0 | 6.5 |
| 250 PFC | 35.5 | 250 | 90 | 15.0 | 8.0 |
| 300 PFC | 40.1 | 300 | 90 | 16.0 | 8.0 |
ANGLES
| Designator | Mass (kg/m) | Leg Length, b1 | Leg Length, b2 | Nominal Thickness, tw |
|---|---|---|---|---|
| 75x75x6EA | 6.8 | 75 | 75 | 6 |
| 90X90X6EA | 8.2 | 90 | 90 | 6 |
| 90X90X8EA | 10.6 | 90 | 90 | 8 |
| 100X75X6EA | 8.0 | 100 | 75 | 6 |
| 100X75X8EA | 10.3 | 100 | 75 | 8 |
| 100X100X6EA | 9.2 | 100 | 100 | 6 |
| 100X100X8EA | 11.8 | 100 | 100 | 8 |
| 125X75X6UA | 9.2 | 125 | 75 | 6 |
| 125X75X8UA | 11.8 | 125 | 75 | 8 |
| 150X90X8UA | 14.3 | 150 | 90 | 8 |
| 150X100X10UA | 18.0 | 150 | 100 | 10 |
SQUARE HOLLOW SECTIONS
| Designator | Mass (kg/m) | Leg Length, d | Leg Length, b | Nominal Thickness, tw |
|---|---|---|---|---|
| 75 X 5 SHS | 10.3 | 75 | 75 | 5 |
| 89 X 5 SHS | 12.5 | 89 | 89 | 5 |
