المعايير
Materials & coating
Structural steel grades, inspection documents, surface preparation, paint systems and galvanising.
EN 10025 Hot rolled products of structural steels
The European family of standards for structural steel products; part 2 covers non-alloy grades such as S235, S275 and S355 with toughness qualities JR, J0, J2 and K2.
ASTM A36 / A572 Carbon structural steel / High-strength low-alloy columbium-vanadium structural steel
The most common American structural steel specifications: A36 (minimum yield 36 ksi ≈ 250 MPa) and A572 in grades 42 to 65, with Grade 50 (≈ 345 MPa) the usual choice.
EN 10204 Metallic products – Types of inspection documents
Defines the types of inspection documents supplied with steel: declarations 2.1 and 2.2, and inspection certificates 3.1 and 3.2 with results of specific tests.
ISO 8501-1 Preparation of steel substrates before application of paints – Visual assessment of surface cleanliness
Defines rust grades of unpainted steel and preparation grades such as Sa 2½ for blast cleaning, illustrated with reference photographs.
ISO 12944 Paints and varnishes – Corrosion protection of steel structures by protective paint systems
The reference for specifying paint systems: corrosivity categories C1–C5 and CX, durability ranges, design for corrosion protection, surface preparation, paint systems,…
ISO 1461 Hot dip galvanized coatings on fabricated iron and steel articles
Specifies the properties of zinc coatings applied by dipping fabricated steel in molten zinc, including minimum coating thickness by steel thickness and inspection.
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