ISO 2605-3:1985 PDF

Name: ISO 2605-3:1985 — Steel products for pressure purposes — Derivation and verification of elevated temperature properties — Part 3: An alternative procedure for deriving the elevated temperature yield or proof stress properties when data are limited
SKU: ISO 2605-3:1985
Price: 25 EUR
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Steel products for pressure purposes — Derivation and verification of elevated temperature properties — Part 3: An alternative procedure for deriving the elevated temperature yield or proof stress properties when data are limited

Название (английский):

ISO 2605-3:1985

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 3
Дата публикации:: 12 декабря 1985 г.
Издание:: ISO IS 2605 edition 1 version 1
ICS:: 77.140.30

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Описание (английский):

Defines an alternative to the method specified in ISO 2605-1 and ISO 2605-2. Does not define a verification procedure; where verification of elevated temperature properties is required this shall be by hot testing.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 2605-3:1985 provides an alternative statistical procedure for deriving minimum elevated‑temperature yield (or proof) stress properties for steel products used in pressure purposes when full data sets are limited. It is intended for situations where the procedures in ISO 2605‑1 and ISO 2605‑2 are difficult to meet (for example for nationally standardized steels or new alloys). The part does not define a verification test method - where verification is required it must be carried out by hot testing.

Key topics and requirements

Purpose: Derive conservative minimum elevated‑temperature yield or proof stress values from reduced experimental data.

Data basis: Use normalized ratios of elevated‑temperature yield to the corresponding ambient‑temperature yield from a defined set of test heats.

Minimum data quantity: Test points should come from at least eight heats/casts, ideally contributed by multiple producers to reduce bias.

Temperature coverage: Data should span the specified temperature range with intervals of about 50 °C, covering the whole range over which properties are required.

Specimen representativeness: Test specimens must be representative of the thickness, section dimensions and heat‑treatment conditions for which the properties are specified.

Statistical method: Construct a regression (“mean trend”) curve of the ratio of elevated to ambient yield values versus temperature (least‑squares fit). This mean trend is used to scale the minimum specified ambient yield.

Derivation rule: Minimum elevated‑temperature values are obtained by factoring the mean trend by the specified minimum ambient yield and then applying a fixed reduction equal to 10% of the minimum specified ambient yield to define conservative minimums.

Verification: This part explicitly does not prescribe a verification procedure; if verification is mandated, it must be by hot tensile testing conforming to the relevant ISO tensile test methods.

Applications and users

Standards committees and national bodies specifying mechanical property limits for pressure-vessel steels and other steel products for pressure purposes.

Material engineers, QA/QC personnel and manufacturers who need to establish conservative elevated temperature yield or proof stress values when full high‑temperature datasets are unavailable.

Designers of boilers, pressure vessels and high‑temperature equipment who rely on standardized minimum properties for safety and code compliance.

Useful for new steels, limited production runs or early stages of material qualification where hot testing data are sparse.

Related standards

ISO 2605‑1 and ISO 2605‑2 (primary methods for deriving/verification)

ISO/R 783 (high‑temperature tensile testing)

ISO 6892 (room‑temperature tensile testing)

ISO/R 831 (construction of stationary boilers)

Keywords: ISO 2605-3, elevated temperature properties, yield strength, proof stress, pressure vessels, steel products, derivation method, limited data, hot testing.

ISO 2605-3:1985 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

ISO 2605-1:1976

Steel products for pressure purposes — Derivation and verification of elevated temperature properties — Part…

ISO 2605-2:1976

Steel products for pressure purposes — Derivation and verification of elevated temperature properties — Part…

BS EN ISO 6892-2:2026

Metallic materials. Tensile testing - Method of test at elevated temperature