AS 1472:2003 pdf – Carbon steel spring wire for mechanical springs

AS 1472:2003 pdf – Carbon steel spring wire for mechanical springs

AS 1472:2003 pdf – Carbon steel spring wire for mechanical springs.
1 All mechanical spring wires are high tensile products, necessitating continual and consistent application of a high degree of caution and surveillance when handling them.
2 It is essential that a considerable level of caution be exercised when untying coils of oil- hardened and tempered mechanical spring wire, especially in larger wire diameters. since its straight-line cast presents a potential hazard to workers. It is important thai the ‘start’ end, or any wap that is cut, be positively restrained or secured at all times.
By agreement between manufacturer and purchaser. individual coils may be supplied on transportable carriers, such as spools or tubular frames.
Unless otherwise agreed, the mass or length of wire in each coil shall be at the discretion of the manufacturer.
NOTE: The inside diameter of a block-wound coil is always smaller than the nominal block diameter.
5.1 Freedom from defects
The wire shall be clean, smooth and free from defects detrimental to its subsequent processing and end use.
Notwithstanding that a delivery of wire has been accepted by the customer, if subsequent processing reveals that it contains defects found to be detrimental to its end use, and such end use has been notified to the manufacturer at the time of enquiry or order, it shall he deemed not to comply with this Standard, provided also that it has not been improperly treated after delivery.
1 Defects referred to in this Clause cannot be completely prescribed. Where the presence. size or frequency of any defect is considered to be of concern, arrangements should be made between the purchaser and the manufacturer at the time of enquiry or order. Such arrangements may include acceptable tspe samples or methods of test.
2 In general, wires that are supplied in the as-drawn condition, such as drawn-galvanized spring wire, carry a thin coaling of stearate drawing lubricant that is lustrous and dry. while oil- hardened and tempered spring wire exhibits a thin, tenacious layer of iron scale resulting from the heat-treatment process. together with a light coating of oil.
The wire shall be prepared and tested in accordance with Clauses 6.1 and 6.2, respectively.
The diameter and ovalily tolerances shall be in accordance with Table 4.
Preferred diameters shall be as shown in Tables 6, 7 and 8, as appropriate.
1 Diameter and ovality tolerances other than those given in Table 4 may be negotiated between purchaser and manufacturer.
2 The preferred diameters shown in Tables 6. 7 and 8 are in accordance with the R20 series specified in AS 2338.