ISO 10763-2020-06 pdf free.Hydraulic fluid power — Plain-end,seamless and welded precision steeltubes — Dimensions and nominalworking pressures.
This document specifies sizes and nominal working pressures for seamless and welded precisionsteel tubes with outside diameters in accordance with iS0 4397, and wall thicknesses and mechanicalproperties in accordance with ISO 3305.The nominal working pressures included in this documentreflect a design factor ratio of 4 to 1 applied to the calculated burst pressures.
The following documents are referred to in the text in such a way that some or all of their contentconstitutes requirements of this document. For dated references,only the edition cited applies. Forundated references, the latest edition of the referenced document(including any amendments) applies.ISO 3305, Plain end welded precision steel tubes — Technical conditions for delivery.
ISO 4397,Fluid power connectors and associated components —Nominal outside diameters of tubes andnominal hose sizes.
ISO 5598, Fluid power systems and components — Vocabulary.
For the purposes of this document, the terms and definitions given in IS0 5598 apply.
ISO and lEC maintain terminological databases for use in standardization at the following addresses:
ISo Online browsing platform: available at https://www.iso.org/obp
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Steel tubes shall have outside diameters selected from the range presented in ISO 4397 and shall havethe mechanical properties of grade R37 in normalized conditions (NBK), as specified in ISO 3305.
The nominal working pressures for selected tube outside diameters and wall thicknesses are given inTable 1.The nominal working pressure values are based on a design factor ratio of 4 to 1 applied to thecalculated burst pressures and are derived from the following formulae:
is the calculated burst pressure in MPa (megapascals);is the nominal working pressure in MPa (megapascals); is the minimum tensile strength in MPa (megapascals);is the natural logarithm, also referred to as loge;Dis the nominal tube outside diameter in millimetres (mm);tis the nominal tube wall thickness in millimetres (mm).lt is recommended to manufacturers to use the following statement in test reports,categories and salesliterature when electing to conform to this document:“Sizes and working pressures for seamless and welded precision steel tubes in accordance withISO 10763:2019，Hydraulic fluid power — Plain-end， seamless and welded precision steel tubesDimensions and nominal working pressures.”ISO 10763 pdf download.