AS1074
TUSPIPE strictly adheres to the AS1074 standard requirements during the steel pipe production process and has obtained AS1074 standard certification. This ensures the safety and extremely high performance of the steel pipes.
AS 1074
Standard Overview:
AS 1074 is an Australia and New Zealand standard.
Applicable to threaded and plain end pipes per AS 1722.1.
Covers DN 8 to DN 150 inclusive (nominal size).
Pipe Characteristics:
Wall thicknesses designated as Light, Medium, and Heavy.
Mechanical properties, dimensional tolerances, and strength classifications are specified.
Marking Requirements:
Steel pipes must be marked with the manufacturer’s name or trademark.
Safety and Quality Assurance:
AS 1074 ensures steel pipes meet safety and quality standards.
Adherence to the standard ensures products are safe and fit for purpose.
Pourquoi choisir tuspipe ?
Depuis 1998, Tianjin United Steel Piping Co., Ltd (TUSPIPE) s'engage à fournir des tubes de canalisation de haute qualité.
Avec une capacité de production annuelle de plus de 500 000 tonnes, l'entreprise dessert divers domaines et industries, tels que l'exploitation et la transmission du pétrole et du gaz, la construction navale et automobile, l'eau et l'électricité, la protection de l'environnement, l'ingénierie mécanique, la construction d'infrastructures, etc.
TUSPIPE accorde une grande importance à la qualité des produits et à leur contrôle rigoureux. Afin de maintenir une bonne qualité des produits, l'entreprise a mis en place un centre d'essai et d'inspection depuis 2004. Doté d'une série d'équipements d'essai et d'inspection de pointe, le centre d'essai et d'inspection est en mesure d'effectuer des essais de traction, des essais hydrauliques, des essais d'impact, des essais DWTT, etc.
Dimensions and Sizes of AS 1074 Pipe
| Taille | Class | Diamètre extérieur (mm) | W.T. (mm) | Weight (Plain End) (kg/mtr.) | Weight (Socketed) (kg/mtr.) | Pcs/Bundle | ||
|---|---|---|---|---|---|---|---|---|
| DN | Pouce | Min | Max | |||||
| 15 | 1⁄2″ | L | 21 | 21.4 | 2.00 | 0.947 | 0.956 | 217 |
| 20 | 3⁄4″ | L | 26.4 | 26.9 | 2.30 | 1.380 | 1.390 | 127 |
| 25 | 1″ | L | 33.2 | 33.8 | 2.60 | 1.980 | 2.000 | 91 |
| 32 | 11⁄4″ | L | 41.9 | 42.5 | 2.60 | 2.540 | 2.570 | 61 |
| 40 | 11⁄2″ | L | 47.8 | 48.4 | 2.90 | 3.230 | 3.270 | 61 |
| 50 | 2″ | L | 59.6 | 60.2 | 2.90 | 4.080 | 4.150 | 37 |
| 65 | 21⁄2″ | L | 75.2 | 76 | 3.20 | 5.710 | 5.830 | 37 |
| 80 | 3″ | L | 87.9 | 88.7 | 3.20 | 6.720 | 6.890 | 19 |
| 100 | 4″ | L | 113 | 113.9 | 3.60 | 9.750 | 10.000 | 19 |
| 15 | 1⁄2″ | M | 21.1 | 21.7 | 2.60 | 1.210 | 1.220 | 217 |
| 20 | 3⁄4″ | M | 26.6 | 27.2 | 2.60 | 1.560 | 1.570 | 127 |
| 25 | 1″ | M | 33.4 | 34.2 | 3.20 | 2.410 | 2.430 | 91 |
| 32 | 11⁄4″ | M | 42.1 | 42.9 | 3.20 | 3.100 | 3.130 | 61 |
| 40 | 11⁄2″ | M | 48 | 48.8 | 3.20 | 3.570 | 3.610 | 61 |
| 50 | 2″ | M | 59.8 | 60.8 | 3.60 | 5.030 | 5.100 | 37 |
| 65 | 21⁄2″ | M | 75.4 | 76.6 | 3.60 | 6.430 | 6.550 | 37 |
| 80 | 3″ | M | 88.1 | 89.5 | 4.00 | 8.370 | 8.540 | 19 |
| 100 | 4″ | M | 113.3 | 114.9 | 4.50 | 12.200 | 12.500 | 19 |
| 125 | 5″ | M | 138.7 | 140.6 | 5.00 | 16.600 | 17.100 | 13 |
| 150 | 6″ | M | 164.1 | 166.1 | 5.00 | 19.700 | 20.300 | 10 |
| 15 | 1⁄2″ | H | 21.1 | 21.7 | 3.20 | 1.440 | 1.450 | 217 |
| 20 | 3⁄4″ | H | 26.6 | 27.2 | 3.20 | 1.870 | 1.880 | 127 |
| 25 | 1″ | H | 33.4 | 34.2 | 4.00 | 2.940 | 2.960 | 91 |
| 32 | 11⁄4″ | H | 42.1 | 42.9 | 4.00 | 3.800 | 3.830 | 61 |
| 40 | 11⁄2″ | H | 48 | 48.8 | 4.00 | 4.380 | 4.420 | 61 |
| 50 | 2″ | H | 59.8 | 60.8 | 4.50 | 6.190 | 6.260 | 37 |
| 65 | 21⁄2″ | H | 75.4 | 76.6 | 4.50 | 7.930 | 8.050 | 37 |
| 80 | 3″ | H | 88.1 | 89.5 | 5.00 | 10.300 | 10.500 | 19 |
| 100 | 4″ | H | 113.3 | 114.9 | 5.40 | 14.500 | 14.800 | 19 |
| 125 | 5″ | H | 138.7 | 140.6 | 5.40 | 17.900 | 18.400 | 13 |
| 150 | 5″ | H | 164.1 | 166.1 | 5.40 | 21.300 | 21.900 | 10 |
Chemical Composition of AS 1074 carbon Steel Pipe
The as 1074 carbon steel pipe shall be manufactured from steel which has a sulfur content of not more than 0.045 percent and phosphorus content of not more than 0.045 percent. The carbon equivalent, as calculated from the following equation, shall not exceed 0.4: Carbon Equivalent = C + Mn/6
| Elements of AS/NZS 1074 Pipes | Max % |
|---|---|
| S | 0.045% |
| P | 0.045% |
| CE | 0.400% |
Mechanical Properties of AS 1074 Pipeline
| AS/NZS 1074 Mechanical Properties | Minimum Requirement |
|---|---|
| Limite d'élasticité (MPa) | 195 |
| Résistance à la traction (MPa) | 320 |
| Élongation (%) | 20 |
Manufacturing Tolerances of AS 1074
| AS/NZS 1074 Manufacturing Parameter | Tolérances |
|---|---|
| Diamètre extérieur | See the Dimension Table Above |
| Épaisseur de la paroi | -8%, +unlimited (Light) |
| -10%, +unlimited (Medium and Heavy) | |
| Rectitude | 0.20% of Total Length |
| Masse | ± 4% |
| Longueur de l'unité | ± 0.08m |
Thickness Identification of AS 1074
Before leaving the manufacturer, as 1074 pipe shall be distinguished by color at one end as per following table:
| Thickness Identification | |
|---|---|
| Extra Light | Green |
| Light | Yellow |
| Moyen | Bleu |
| Lourd | Rouge |
Screw Threads of AS 1074 specification specifications
In order to ensure the Screw threads of all threaded tubes comply with AS 1722.1, it is essential that the fitting allowance plus gauge length for pipe threads of series R and RC for the particular nominal size, does not exceed 80% of the sum of the Light tube’s basic length of useful thread. In some cases, low limits of outside diameter can result in “black” threads (perfect at the root and imperfect at the crest), but these should not be regarded as justification for rejection of the tubes. All tubes shall be supplied threaded with taper pipe threads.
Test and Inspections of AS 1074
– Leak Tightness Test
- Online NDT
- Hydro-test
– Bending Test
Tubes are an essential part of many industrial applications, and it is important that they be able to withstand certain loads and stresses. One such test is the bending test, which determines a tube’s ability to resist fracture or failure under duress.
- Tubes ≤ DN50 – The test is carried out by placing the tube in a bending machine, with the weld at a 90-degree angle to the plane of bending. The tube is then bent cold around a former with a radius that is appropriate for the particular tube being tested. For ungalvanized tubes, this radius should be equal to 6 times the outside diameter of the tube; for galvanized tubes, it should be 8 times the outside diameter of the tube. If the tube does not crack or show any signs of failure during this process, it is considered to have passed the test.
- Tubes ＞ DN50 – According to the given specifications, for finished tubes that are larger than DN50 in diameter, rings cut from the end of the selected tubes must be at least 40mm in length and be able to be flattened between two parallel plates. The weld, if there is one, should be at a 90-degree angle in relation to the point of maximum bending. Additionally, no opening or fracture should occur in the weld until the distance between the plates is less than 75% of the original outside diameter of the tube. There should also be no cracks or breaks in the metal occurring elsewhere until the distance between the plates is less than 60% of the original outside diameter of the tube. As appropriate, test rings may have their inner and outer edges rounded.
