Metallurgi

Kommittébeteckning: SIS/TK 130 (Gjutet järn och stål)
Källa: CEN
Svarsdatum: den 12 mar 2024
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This document specifies the requirements for the ultrasonic testing of steel castings (with ferritic structure) for highly stressed components and the methods for determining internal discontinuities by the pulse-echo technique. Purchasers determine if components are highly stressed based on the need for performance or safety. This document applies to the ultrasonic testing of steel castings which have usually received a grain-refining heat treatment and which have wall thicknesses up to and including 600 mm. For greater wall thicknesses, special agreements apply with respect to test procedure and recording levels. This document does not apply to austenitic steels and joint welds.

Kommittébeteckning: SIS/TK 130 (Gjutet järn och stål)
Källa: CEN
Svarsdatum: den 12 mar 2024
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This document specifies the requirements for the ultrasonic testing of spheroidal graphite cast iron castings and the techniques for determining internal discontinuities by the pulse-echo technique. This document does not apply to ultrasonic testing of the nodularity of spheroidal graphite cast irons. This document does not apply to phased array technique and to transmission technique. NOTE The transmission technique has insufficient sensitivity to detect the discontinuities found in spheroidal graphite cast iron castings and is used in exceptional cases only.

Kommittébeteckning: SIS/TK 638 (Stålprodukters klimatpåverkan)
Källa: ISO
Svarsdatum: den 12 mar 2024
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ISO 14404-1:2013 specifies calculation methods for the carbon dioxide (CO2) intensity of plant where steel is produced through a blast furnace. It includes boundary definition, material and energy flow definition and emission factor of CO2. Besides direct source import to the boundary, upstream and credit concept is applied to exhibit the plant CO2 intensity. ISO 14404-1:2013 supports the steel producer to establish CO2 emissions attributable to a site. ISO 14404-1:2013 cannot be used to calculate benchmarks or to compare CO2 intensities of production processes that are operated inside the site.

Kommittébeteckning: SIS/TK 638 (Stålprodukters klimatpåverkan)
Källa: ISO
Svarsdatum: den 12 mar 2024
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ISO 14404-2:2013 specifies calculation methods which companies using EAF to manufacture steel can use to evaluate the total annual carbon dioxide (CO2) emissions and the emission factor of CO2 per unit of steel production of the entire steel production process. ISO 14404-2:2013 is applied to the plants that produce mainly carbon steel. It includes boundary definition, material and energy flow definition, and emission factor of CO2. Besides direct source import to the boundary, upstream and credit concept is applied to exhibit the plant CO2 intensity. ISO 14404-2:2013 supports the steel producer to establish CO2 emissions attributable to a site. ISO 14404-2:2013 cannot be used to calculate benchmarks or to compare CO2 intensities of production processes that are operated inside the site.

Kommittébeteckning: SIS/TK 638 (Stålprodukters klimatpåverkan)
Källa: ISO
Svarsdatum: den 12 mar 2024
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ISO 14404-3:2017 specifies calculation methods applicable to those companies using an electric arc furnace (EAF) to produce steel and having direct reduced iron (DRI) facilities within their premises. It can be used to evaluate the total annual carbon dioxide (CO2) emissions and the emission factor of CO2 per unit of steel production of the entire steel production process. This document is applicable to plants producing mainly carbon steel. It includes boundary definition, material and energy flow definition and emission factor of CO2. Besides direct source import to the boundary, upstream and credit concept is applied to exhibit the plant CO2 intensity. ISO 14404-3:2017 supports the steel producer to establish CO2 emissions attributable to a site. This document cannot be used to calculate benchmarks or to compare CO2 intensities of production processes that are operated inside the site. Conversion to energy consumption and to consumption efficiency can be obtained using Annex A.

Kommittébeteckning: SIS/TK 130 (Gjutet järn och stål)
Källa: CEN
Svarsdatum: den 13 mar 2024
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This document specifies the requirements for the ultrasonic testing of steel castings (with ferritic structure) for general purposes and the methods for determining internal discontinuities by the pulse-echo technique. This document applies to the ultrasonic testing of steel castings which have usually received a grain refining heat treatment and which have wall thicknesses up to and including 600 mm. For greater wall thicknesses, special agreements apply with respect to test procedure and recording levels. This document does not apply to austenitic steels and joint welds.

Ämnesområden: Korrosion
Kommittébeteckning: SIS/TK 146/AG 64 (Korrosion i jord och vätskor)
Källa: ISO
Svarsdatum: den 26 mar 2024
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This method covers the equipment, materials, specimen preparation, procedures, results and reports for testing and evaluating the corrosion of steel bar embedded in concrete structure exposed to total corrosion zones in marine environments.