- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 50/55
- Type
- Round
- Weight kg/m
- 0.700
PRODUCT / 01
Round Corrugated Metal Sheaths
Uncoated cylindrical corrugated steel sheaths for prestressing tendons. Dimensions, thicknesses and weights below are manufacturer data.
- Available steel thicknesses
- 0.40–0.60 mm
- Available diameters
- Ø 45/50 – 135/140
- EN 523 / 524 Compliance
- EN 523 / EN 524
Overview
Round corrugated metal ducts form the primary sheath around prestressing tendons in post-tensioned concrete. They are produced from steel strip with a corrugated profile intended to provide mechanical interaction with surrounding concrete and internal grout. DUSO publishes the available internal/external diameter pairs, steel thicknesses and corresponding weights per metre so that detailing, grouting and coupler selection can start from documented sizes.
Technical advantages
-
01
Documented size ladder
Diameter pairs from 45/50 through 135/140 are listed with associated thicknesses where produced.
-
02
Multiple steel thicknesses
0.40 / 0.45 mm, 0.50 mm and 0.60 mm options depending on the diameter line.
-
03
Weight per metre stated
Each published size includes kg/m, supporting logistics and material take-off.
-
04
Flat equivalents noted
Where a round size relates to a flat profile (for example 60/65 ↔ 72/21), the relationship is shown on the datasheet.
Product gallery
Photography placeholders — replace with approved factory and product images.
Technical data
Weights are manufacturer values for the listed thickness/dimension combinations. They are not theoretical minimums or guaranteed shipping weights under all packaging conditions.
71 sizes
| Steel Thickness | Diameter / Dimension | Type | Weight kg/m | Note | Actions |
|---|---|---|---|---|---|
| 0.40 / 0.45 | 50/55 | Round | 0.700 | — | |
| 0.40 / 0.45 | 55/60 | Round | 0.720 | — | |
| 0.40 / 0.45 | 60/65 | Round | 0.760 | 4PTSE 72/21 | |
| 0.40 / 0.45 FLAT | 72/21 FLAT | Flat | 0.844 | 60/65 dependent | |
| 0.50 FLAT | 72/21 FLAT | Flat | 0.844 | 60/65 equivalent | |
| 0.40 / 0.45 | 65/70 | Round | 0.820 | — | |
| 0.40 / 0.45 | 70/75 | Round | 0.844 | — | |
| 0.40 / 0.45 | 75/80 | Round | 0.890 | 5 PTSE 97/25 | |
| 0.50 FLAT | 97/25 FLAT | Flat | 0.989 | 75/80 equivalent | |
| 0.40 / 0.45 | 80/85 | Round | 0.954 | — | |
| 0.40 / 0.45 | 85/90 | Round | 1.060 | — | |
| 0.40 / 0.45 | 90/95 | Round | 1.146 | — | |
| 0.40 / 0.45 | 95/100 | Round | 1.180 | — | |
| 0.40 / 0.45 | 100/105 | Round | 1.200 | — | |
| 0.40 / 0.45 | 105/110 | Round | 1.225 | — | |
| 0.40 / 0.45 | 110/115 | Round | 1.300 | — | |
| 0.40 / 0.45 | 115/120 | Round | 1.390 | — | |
| 0.40 / 0.45 | 120/125 | Round | 1.410 | — | |
| 0.40 / 0.45 | 125/130 | Round | 1.430 | — | |
| 0.40 / 0.45 | 130/135 | Round | 1.517 | — | |
| 0.40 / 0.45 | 135/140 | Round | 1.604 | — | |
| 0.50 | 45/50 | Round | 0.730 | — | |
| 0.50 | 48/54 | Round | 0.750 | — | |
| 0.50 | 50/55 | Round | 0.740 | — | |
| 0.50 | 55/60 | Round | 0.820 | — | |
| 0.50 | 60/65 | Round | 0.880 | — | |
| 0.50 | 60/68 | Round | 0.930 | — | |
| 0.50 | 65/70 | Round | 0.950 | — | |
| 0.50 | 65/74 | Round | 1.020 | — | |
| 0.50 | 70/75 | Round | 1.000 | — | |
| 0.50 | 70/78 | Round | 1.100 | — | |
| 0.50 | 80/85 | Round | 1.180 | — | |
| 0.50 | 80/88 | Round | 1.215 | — | |
| 0.50 | 85/90 | Round | 1.260 | — | |
| 0.50 | 85/94 | Round | 1.345 | — | |
| 0.50 | 90/95 | Round | 1.410 | — | |
| 0.50 | 90/98 | Round | 1.430 | — | |
| 0.50 | 95/100 | Round | 1.490 | — | |
| 0.50 | 95/104 | Round | 1.700 | — | |
| 0.50 | 100/105 | Round | 1.580 | — | |
| 0.50 | 100/109 | Round | 1.610 | — | |
| 0.50 | 105/110 | Round | 1.660 | — | |
| 0.50 | 105/114 | Round | 1.700 | — | |
| 0.50 | 110/115 | Round | 1.750 | — | |
| 0.50 | 110/119 | Round | 2.000 | — | |
| 0.50 | 115/124 | Round | 2.000 | — | |
| 0.50 | 120/125 | Round | 1.600 | — | |
| 0.50 | 125/134 | Round | 2.030 | — | |
| 0.60 | 70/75 | Round | 1.200 | — | |
| 0.60 | 70/78 | Round | 1.320 | — | |
| 0.60 | 75/80 | Round | 1.308 | — | |
| 0.60 | 75/83 | Round | 1.389 | — | |
| 0.60 | 80/85 | Round | 1.416 | — | |
| 0.60 | 80/88 | Round | 1.458 | — | |
| 0.60 | 85/90 | Round | 1.512 | — | |
| 0.60 | 85/94 | Round | 1.614 | — | |
| 0.60 | 90/95 | Round | 1.692 | — | |
| 0.60 | 90/98 | Round | 1.716 | — | |
| 0.60 | 95/100 | Round | 1.788 | — | |
| 0.60 | 95/104 | Round | 2.040 | — | |
| 0.60 | 100/105 | Round | 1.896 | — | |
| 0.60 | 100/109 | Round | 1.932 | — | |
| 0.60 | 105/110 | Round | 1.992 | — | |
| 0.60 | 105/114 | Round | 2.040 | — | |
| 0.60 | 110/115 | Round | 2.100 | — | |
| 0.60 | 110/119 | Round | 2.400 | — | |
| 0.60 | 115/124 | Round | 2.400 | — | |
| 0.60 | 120/125 | Round | 1.920 | — | |
| 0.60 | 120/128 | Round | 2.350 | — | |
| 0.60 | 125/134 | Round | 2.436 | — | |
| 0.60 | 130/138 | Round | 2.550 | — |
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 55/60
- Type
- Round
- Weight kg/m
- 0.720
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 60/65
- Type
- Round
- Weight kg/m
- 0.760
- Note
- 4PTSE 72/21
- Steel Thickness
- 0.40 / 0.45 FLAT
- Diameter / Dimension
- 72/21 FLAT
- Type
- Flat
- Weight kg/m
- 0.844
- Note
- 60/65 dependent
- Steel Thickness
- 0.50 FLAT
- Diameter / Dimension
- 72/21 FLAT
- Type
- Flat
- Weight kg/m
- 0.844
- Note
- 60/65 equivalent
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 65/70
- Type
- Round
- Weight kg/m
- 0.820
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 70/75
- Type
- Round
- Weight kg/m
- 0.844
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 75/80
- Type
- Round
- Weight kg/m
- 0.890
- Note
- 5 PTSE 97/25
- Steel Thickness
- 0.50 FLAT
- Diameter / Dimension
- 97/25 FLAT
- Type
- Flat
- Weight kg/m
- 0.989
- Note
- 75/80 equivalent
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 80/85
- Type
- Round
- Weight kg/m
- 0.954
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 85/90
- Type
- Round
- Weight kg/m
- 1.060
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 90/95
- Type
- Round
- Weight kg/m
- 1.146
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 95/100
- Type
- Round
- Weight kg/m
- 1.180
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 100/105
- Type
- Round
- Weight kg/m
- 1.200
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 105/110
- Type
- Round
- Weight kg/m
- 1.225
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 110/115
- Type
- Round
- Weight kg/m
- 1.300
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 115/120
- Type
- Round
- Weight kg/m
- 1.390
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 120/125
- Type
- Round
- Weight kg/m
- 1.410
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 125/130
- Type
- Round
- Weight kg/m
- 1.430
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 130/135
- Type
- Round
- Weight kg/m
- 1.517
- Steel Thickness
- 0.40 / 0.45
- Diameter / Dimension
- 135/140
- Type
- Round
- Weight kg/m
- 1.604
- Steel Thickness
- 0.50
- Diameter / Dimension
- 45/50
- Type
- Round
- Weight kg/m
- 0.730
- Steel Thickness
- 0.50
- Diameter / Dimension
- 48/54
- Type
- Round
- Weight kg/m
- 0.750
- Steel Thickness
- 0.50
- Diameter / Dimension
- 50/55
- Type
- Round
- Weight kg/m
- 0.740
- Steel Thickness
- 0.50
- Diameter / Dimension
- 55/60
- Type
- Round
- Weight kg/m
- 0.820
- Steel Thickness
- 0.50
- Diameter / Dimension
- 60/65
- Type
- Round
- Weight kg/m
- 0.880
- Steel Thickness
- 0.50
- Diameter / Dimension
- 60/68
- Type
- Round
- Weight kg/m
- 0.930
- Steel Thickness
- 0.50
- Diameter / Dimension
- 65/70
- Type
- Round
- Weight kg/m
- 0.950
- Steel Thickness
- 0.50
- Diameter / Dimension
- 65/74
- Type
- Round
- Weight kg/m
- 1.020
- Steel Thickness
- 0.50
- Diameter / Dimension
- 70/75
- Type
- Round
- Weight kg/m
- 1.000
- Steel Thickness
- 0.50
- Diameter / Dimension
- 70/78
- Type
- Round
- Weight kg/m
- 1.100
- Steel Thickness
- 0.50
- Diameter / Dimension
- 80/85
- Type
- Round
- Weight kg/m
- 1.180
- Steel Thickness
- 0.50
- Diameter / Dimension
- 80/88
- Type
- Round
- Weight kg/m
- 1.215
- Steel Thickness
- 0.50
- Diameter / Dimension
- 85/90
- Type
- Round
- Weight kg/m
- 1.260
- Steel Thickness
- 0.50
- Diameter / Dimension
- 85/94
- Type
- Round
- Weight kg/m
- 1.345
- Steel Thickness
- 0.50
- Diameter / Dimension
- 90/95
- Type
- Round
- Weight kg/m
- 1.410
- Steel Thickness
- 0.50
- Diameter / Dimension
- 90/98
- Type
- Round
- Weight kg/m
- 1.430
- Steel Thickness
- 0.50
- Diameter / Dimension
- 95/100
- Type
- Round
- Weight kg/m
- 1.490
- Steel Thickness
- 0.50
- Diameter / Dimension
- 95/104
- Type
- Round
- Weight kg/m
- 1.700
- Steel Thickness
- 0.50
- Diameter / Dimension
- 100/105
- Type
- Round
- Weight kg/m
- 1.580
- Steel Thickness
- 0.50
- Diameter / Dimension
- 100/109
- Type
- Round
- Weight kg/m
- 1.610
- Steel Thickness
- 0.50
- Diameter / Dimension
- 105/110
- Type
- Round
- Weight kg/m
- 1.660
- Steel Thickness
- 0.50
- Diameter / Dimension
- 105/114
- Type
- Round
- Weight kg/m
- 1.700
- Steel Thickness
- 0.50
- Diameter / Dimension
- 110/115
- Type
- Round
- Weight kg/m
- 1.750
- Steel Thickness
- 0.50
- Diameter / Dimension
- 110/119
- Type
- Round
- Weight kg/m
- 2.000
- Steel Thickness
- 0.50
- Diameter / Dimension
- 115/124
- Type
- Round
- Weight kg/m
- 2.000
- Steel Thickness
- 0.50
- Diameter / Dimension
- 120/125
- Type
- Round
- Weight kg/m
- 1.600
- Steel Thickness
- 0.50
- Diameter / Dimension
- 125/134
- Type
- Round
- Weight kg/m
- 2.030
- Steel Thickness
- 0.60
- Diameter / Dimension
- 70/75
- Type
- Round
- Weight kg/m
- 1.200
- Steel Thickness
- 0.60
- Diameter / Dimension
- 70/78
- Type
- Round
- Weight kg/m
- 1.320
- Steel Thickness
- 0.60
- Diameter / Dimension
- 75/80
- Type
- Round
- Weight kg/m
- 1.308
- Steel Thickness
- 0.60
- Diameter / Dimension
- 75/83
- Type
- Round
- Weight kg/m
- 1.389
- Steel Thickness
- 0.60
- Diameter / Dimension
- 80/85
- Type
- Round
- Weight kg/m
- 1.416
- Steel Thickness
- 0.60
- Diameter / Dimension
- 80/88
- Type
- Round
- Weight kg/m
- 1.458
- Steel Thickness
- 0.60
- Diameter / Dimension
- 85/90
- Type
- Round
- Weight kg/m
- 1.512
- Steel Thickness
- 0.60
- Diameter / Dimension
- 85/94
- Type
- Round
- Weight kg/m
- 1.614
- Steel Thickness
- 0.60
- Diameter / Dimension
- 90/95
- Type
- Round
- Weight kg/m
- 1.692
- Steel Thickness
- 0.60
- Diameter / Dimension
- 90/98
- Type
- Round
- Weight kg/m
- 1.716
- Steel Thickness
- 0.60
- Diameter / Dimension
- 95/100
- Type
- Round
- Weight kg/m
- 1.788
- Steel Thickness
- 0.60
- Diameter / Dimension
- 95/104
- Type
- Round
- Weight kg/m
- 2.040
- Steel Thickness
- 0.60
- Diameter / Dimension
- 100/105
- Type
- Round
- Weight kg/m
- 1.896
- Steel Thickness
- 0.60
- Diameter / Dimension
- 100/109
- Type
- Round
- Weight kg/m
- 1.932
- Steel Thickness
- 0.60
- Diameter / Dimension
- 105/110
- Type
- Round
- Weight kg/m
- 1.992
- Steel Thickness
- 0.60
- Diameter / Dimension
- 105/114
- Type
- Round
- Weight kg/m
- 2.040
- Steel Thickness
- 0.60
- Diameter / Dimension
- 110/115
- Type
- Round
- Weight kg/m
- 2.100
- Steel Thickness
- 0.60
- Diameter / Dimension
- 110/119
- Type
- Round
- Weight kg/m
- 2.400
- Steel Thickness
- 0.60
- Diameter / Dimension
- 115/124
- Type
- Round
- Weight kg/m
- 2.400
- Steel Thickness
- 0.60
- Diameter / Dimension
- 120/125
- Type
- Round
- Weight kg/m
- 1.920
- Steel Thickness
- 0.60
- Diameter / Dimension
- 120/128
- Type
- Round
- Weight kg/m
- 2.350
- Steel Thickness
- 0.60
- Diameter / Dimension
- 125/134
- Type
- Round
- Weight kg/m
- 2.436
- Steel Thickness
- 0.60
- Diameter / Dimension
- 130/138
- Type
- Round
- Weight kg/m
- 2.550
No published sizes match these filters. Reset or send a custom enquiry.
Quality control
Incoming steel verification, in-process dimensional checks, surface review, coupler compatibility checks and packaging inspection form the standard control sequence. Specific test limits are not published here; they belong in the quality plan issued for the order.
Packaging
Products are stored and packaged under appropriate conditions until shipment. Identification, bundling and transport preparation follow the dispatch procedure. Packaging method for a given order is confirmed at quotation.