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Stainless Steel 1.4003 / 3CR12

Multi Metals stocks a broad and exceptional range of 1.4003 sheet, plate and box section. 1.4003 is a weldable, ferritic, durable utility stainless steel, offering the benefits of traditional stainless steel – strength, corrosion/abrasion resistance, durability, low maintenance – with the additions of good weldability and formability. 1.4003 is proven to be a durable alternative to mild steel. It offers major advantages to coated and treated mild steel or aluminium, as many coating processes can be eliminated. 1.4003 offers significant cost savings compared to other conventional high specification alloyed steels where strength corrosion resistance and durability are needed.

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Chemical Composition % to BSEN10088-2Physical Properties
Carbon0.03 max
Silicon1.00 max
Manganes1.50 max
Phosphorus0.040 max
Sulphur0.015 max
Chromium10.50-12.50 max
Nickel0.30-1.00
Nitrogen0.03 max
Typical Tensile Strength (N/mm2)
450-650
522

0.2% Yield Strength (N/mm2)
320 min≤6mm
376 280 min
>6mm-361

Elongation (%)
20 min≤6mm
23 18 min
>6mm 26
Hardness (BHN)*
220 max12mm
165
Charpy Impact (j)
5 0 min≥15mm
100 (To prEN10028-7)
35min
<15mm
85
Poisson's Ration 0.32
Initial Shear Modulus     108 Gpa
Limit of Proporationality 130 Gpa
                                (tension)
Ultimate shear strength    245 Mp