SIST EN ISO 15363:2025 PDF

Name: SIST EN ISO 15363:2025 — Metallic materials - Tube ring hydraulic pressure test (ISO 15363:2017)
SKU: SIST EN ISO 15363:2025
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Metallic materials - Tube ring hydraulic pressure test (ISO 15363:2017)

Название (английский):

SIST EN ISO 15363:2025

Metallic materials - Tube ring hydraulic pressure test (ISO 15363:2017)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 16
Дата публикации:: 3 октября 2025 г.
Издание:: ISO 15363:2017
ICS:: 77.040.10

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Описание (английский):

ISO 15363:2017 specifies the ring hydraulic pressure test for metallic tubes. It is generally applied to tubes with an outside diameter greater than 120 mm and outside diameter to thickness ratio of not less than 20. The objective of this test is to ascertain the value of the hoop stress required to produce a specified total circumferential (hoop) strain.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты SIST

Overview

EN ISO 15363:2025 (adoption of ISO 15363:2017) specifies the tube ring hydraulic pressure test for metallic tubes. The method determines the hoop (circumferential) stress required to produce a specified total circumferential strain by hydraulically expanding a short tube ring between platens. It is typically applied to tubes with an outside diameter greater than 120 mm and an outside-diameter-to-thickness ratio (d/a) of not less than 20.

Keywords: EN ISO 15363:2025, tube ring hydraulic pressure test, hoop strength, circumferential strain, metallic tube testing.

Key topics and technical requirements

Scope and purpose: Measures hoop strength (hoop stress at a specified total circumferential strain) without influences introduced by flattening standard tensile specimens.

Test piece preparation: Ring machined from tube (edges fine turned/ground), uniquely identified, and free from heat-affected zones or burrs.

Dimensional measurement:

Outside diameter from tube circumference (accuracy ±1 mm).
Wall thickness: mean of eight measurements taken at ~45° intervals (excluding the weld); thickness gauge accuracy > ±0.025 mm.

Apparatus:

Hydraulic testing machine permitting free radial expansion (small gap to top platen).
Parallel platens with fine-turned or ground finish; contact surfaces lubricated (graphited grease or PTFE sheet) to minimize friction.
Inner die, rubber seal/gasket and bleed line to remove air.

Measurement and recording:

Circumferential extension measured with steel tape or roller-chain extensometer wrapped at ring mid‑point (separation between tape parallels 1.5–3 mm); extension measurement accuracy ±0.25 mm.
Pressure measurement accuracy within ±1 %; devices verified regularly.
Strain rate shall not exceed 0.2 % per minute.
Pressure vs. circumferential-extension record used to determine the pressure at the specified total strain.

Calculation guidance: The standard provides the method to calculate hoop strength from measured pressure, diameter and thickness for rings with d/a ≥ 20 and warns that results become less accurate for d/a

SIST EN ISO 15363:2025 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Технические детали

ISO 15363:2017

Metallic materials — Tube ring hydraulic pressure test

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