aS/NZS 1074

AS/NZS 1074 Steel Pipe

AS/NZS 1074 is a standard published by Standards Australia and Standards New Zealand. It covers the specification for steel tubes and tubulars for use in structural applications. The standard provides requirements for manufacturing, dimensions, tolerances, and mechanical properties of these steel tubes. It’s commonly referenced in engineering and construction industries in Australia and New Zealand.

With nominal sizes ranging from DN 8 to DN 150, you have the flexibility to choose the perfect fit for your specific needs. Our tubes come in three distinct wall thicknesses: Light, Medium, and Heavy, each catering to different applications and load-bearing capacities.

AS/NZS 1074 Pipe Specification

AS/NZS 1074 pipe dimensions are meticulously crafted to fit nominal sizes from DN 8 to DN 150. Our production procedures follow stringent quality checks, ensuring that each tube meets the highest standards.

You can select from various steel grades, each offering unique mechanical properties and corrosion resistance. Surface coatings are available to enhance durability and aesthetic appeal. Choose from different end types and joint methods to suit your installation needs.

Additionally, we offer specialized machining services to customize your tubes further, making your project seamless and efficient.

Production Standard	AS 1074
Manufacturing Processes	ERW (Electric Resistance Welding)
Manufacturing Processes	SMLS (Hot Finished / Cold Drawn Seamless)
Outside Diameter	13.7mm – 164.1mm (1/4″ – 6″)
Wall Thickness	1.8mm – 5.4mm (Light Medium Heavy)
Pipe Length	5 – 18 mtrs
Steel Grade	≥Q195
Corrosion Prevention	Bare, Varnishing, Hot Dip Galvanizing
End Processes	Square Cut, Bevelling, Threading, Grooving
Further Processing	Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding

AS/NZS 1074 Tube Dimension Table

Understanding dimensions is crucial for selecting the right tube for your project. Our AS/NZS 1074 tubes come in nominal sizes ranging from DN 8 to DN 150, offering you a broad spectrum of choices. Each size category is further divided into three wall thicknesses: Light, Medium, and Heavy. This granularity in dimensions allows you to pick the tube that precisely meets your load-bearing and installation requirements. With our comprehensive dimension table, you’ll find it effortless to match your project’s needs with the perfect tube dimensions.

Dimensions Of Steel Tubes — Heavy
Nominal size	Outside diameter mm		Thickness mm	Mass of black tube kg/m
Nominal size	Min.	Max.	Thickness mm	Plain or screwed ends	Screwed and socketed
DN 8	13.3	13.9	2.9	0.765	0.769
DN 10	16.8	17.4	2.9	1.02	1.03
DN 15	21.1	21.7	3.2	1.44	1.45
DN 20	26.6	27.2	3.2	1.87	1.88
DN 25	33.4	34.2	4	2.94	2.96
DN 32	42.1	42.9	4	3.8	3.83
DN 40	48	48.8	4	4.38	4.42
DN 50	59.8	60.8	4.5	6.19	6.26
DN 65	75.4	76.6	4.5	7.93	8.05
DN 80	88.1	89.5	5	10.3	10.5
DN 100	113.3	114.9	5.4	14.5	14.8
DN 125	138.7	140.6	5.4	17.9	18.4
DN 150	164. 1	166. 1	5.4	21.3	21.9
NOTE：Dimensions and masses are in accordance with ISO 65.

Chemical & Mechanical Requirements of AS/NZS 1074

Chemical composition and mechanical requirements are critical factor that determines the quality and performance of steel tubes. Our AS/NZS 1074 tubes are manufactured using steel grades that meet specific chemical requirements, and our tubes are designed to meet stringent mechanical requirements, including tensile strength, yield strength, and elongation. These tubes are engineered to withstand varying degrees of mechanical stress, making them ideal for a wide range of applications.

2.1 PROCESS OF MANUFACTURE. Tubes may be either welded or seamless .
2.2 MATERIAL. Tubes shall be manufactured from steel which shows, not more than 0.045 percent of sulfur and not more than 0.045 percent of phosphorus. Carbon equivalent as calculated from the following equation shall not exceed 0.4:
Lengths or strips cut from selected tubes and tested in accordance with AS 1391 shall show–
(a) minimum yield strength of 195 MPa;
(b) a tensile strength of between 320 MPa and 460 MPa; and
(c) an elongation of not less than 20 percent on a gauge length of 5.65√So where So is the original cross-sectional area of the test piece.
NOTE：Where other gauge lengths are used，the corresponding elongation on 5.65√So can be obtained from BS 3894：Part 1.

Production Tolerance of AS/NZS 1074 Pipe/ Tube

PERMISSIBLE VARIATION IN THICKNESS,DIAMETER. AND MASS

AS/NZS 1074 specifies production tolerances for steel pipes and tubes used in structural applications to ensure consistency and reliability in manufacturing. The production tolerances include permissible variations in thickness, diameter, and mass.

The following manufacturing tolerances shall be permitted on the tubes:

(a) Thickness:
Light welded tubes + unlimited, – 8 percent.
Medium and heavy tubes –
Welded…….+ unlimited, – 10 percent.
Seamless….. + unlimited, – 12.5 percent.

(b)Ouside diameler:
Light tubes……as given in Table 2.1
Medium tubes……as given in Table 2.2.
Heavy tubes……as given in Table 2.3.

(c)Mass.
The mean consignment mass for quantities of 150 m and over of one size shall not deviate from the standard mass by more than ±4 percent.No single tube shall deviate from the standard mass by more than + 10, – 8 percent.

Common Industry Applications

Construction Industry: Steel pipes conforming to AS1074 and NZS1074 are versatile and can be used in a wide range of construction applications, from structural supports to scaffolding.
Oil and Gas: Both AS1074 and NZS1074 standards ensure that steel pipes used in the oil and gas industry meet technical and safety requirements, can withstand harsh operating conditions, and are adapted to local environments and regulations.
Automotive Transport: AS1074 and NZS1074 ensure that the pipes meet the pressure and durability requirements, is commonly used for transporting oil, gas, and other fluids.
Mechanical Industry: Steel pipes conforming to AS1074 and NZS1074 are used in mechanical piping systems for transporting fluids, gases, and other materials within machinery and equipment. They are also commonly used in mechanical assemblies, such as frames, supports, and columns, and the construction of heat exchangers.
Energy: AS1074 and NZS1074 standards are appropriate for the energy industry, offering reliable solutions for pipeline systems, boilers, heat exchangers, and other energy infrastructure components.
Machining: Pipes are used in prototype development where precise material properties and dimensions are critical. AS1074 and NZS1074 ensure that prototypes can be developed with consistent and reliable materials.