Part A – Ferrous Material SpecificationsĮurocode 3 / EN Design of steel structures – Part 1-4: General rules – Supplementary rules for stainless steels In addition, ferritics have similar machinability as carbon streels, due to low work hardening characteristics.Ĭore range grades can be used in a wide range of applications supported with a broad selection of surface finishes from mills and service centers.ĮN 10028-7 Flat products for pressure purposes – Stainless steelsĮN 10088-2 Stainless steels – sheet/plate and strip for general purposesĮN 10088-3 Stainless steels – semi-finished products, bars, rods sections for general purposesĮN 10088-4 Technical delivery conditions for sheet/plate and stripĮN 10095 Heat resisting steels and nickel alloysĮN 10151 Stainless steel strip for springsĮN 10217-7 Welded steel tubes for pressure purposes – Stainless steel tubesĮN 10296-2 Welded circular steel tubes for mechanical and general engineering purposes – Stainless Steel tubesĮN 10302 Creep resisting steels, nickel and cobalt alloysĪSTM A 167 Stainless and heat-resisting Cr-Ni steel plate, sheet, and stripĪSTM A 176 Stainless and heat-resisting Cr steel plate, sheet, and stripĪSTM A182/ ASME SA-182 Stainless steel and heat resisting steel bars and shapesĪSTM A 240 Cr and Cr-Ni stainless steel plate, sheet and strip for pressure vesselsĪSTM A276 Stainless steel and heat-resisting steel rod and wire for cold heading and forgingĪSTM A479/ ASME SA-479 General requirements for stainless and heat resistant steel wire and wire rodĪSTM A 666 Austenitic stainless steel sheet, strip, plate, bar for structural and architectural applicationsĪSME IIA Materials. Good heat transfer with lower thermal expansion eases weldability via smaller weld distortion and buckling behavior than austenitics. Ferritics have good heat transfer properties that can be utilized in applications where uniform and fast heat transfer is preferred. Thanks to phase structure, nickel-free ferritic stainless steels grades have excellent resistances to chloride-induced stress-corrosion cracking. Modern Core range stabilized ferritic stainless steels have good corrosion resistance, welding and deep-drawing properties. Due to the higher toughness and work hardening nature of the austenitic stainless steels, special attention may be needed during forming and machining operations compared to ferritic stainless or carbon steels.

Austenitic steels exhibit very high ductility also down to cryogenic temperatures. Nickel-free Core 4622 offers similar corrosion resistance, weldability and better heat transfer, machinability and deep-drawability compared to 304L.Ĭore range Cr-Ni austenitic stainless steels have good corrosion resistance, welding and forming, especially stretch-forming characteristics. The latest Core range addition is the stabilized 21% chromium ferritic stainless steel, Core 4622 (EN 1.4622). The Core range is complemented by modern stabilized nickel-free 18 – 21% chromium ferritic stainless steels, like Core 441/4509 (EN 1.4509), and low-nickel austenitic alternatives. The most widely used austenitic stainless grade, Core 304L/4307 (EN 1.4307), defines the overall landscape of the Core range.

The Core range contains austenitic and ferritic stainless steels grades for mild to medium corrosive environments in PRE range 17 – 22.

304 stainless composition