Corten A steel sheets comply with EN 10025-5 and provide excellent atmospheric corrosion resistance. Their chemical composition promotes the formation of a stable protective patina when exposed to outdoor environments. This natural surface layer slows corrosion, reduces maintenance requirements and eliminates the need for additional protective coatings in many applications. These characteristics make Corten A an ideal material for architectural, industrial and structural projects.
Sidastico supplies cut-to-size steel sheets processed from hot-rolled coil in a wide range of thicknesses and dimensions. The company cuts every sheet according to customer specifications, reducing material waste and improving production efficiency. Sidastico also provides the EN 10204 3.1 inspection certificate with every delivery, ensuring full traceability and compliance with the declared mechanical and chemical properties.
Corten A steel sheets are suitable for laser cutting, plasma cutting, oxy-fuel cutting, bending, drilling and welding. Designers and manufacturers use this grade for architectural façades, cladding, bridges, infrastructure, industrial equipment, outdoor structures and urban furniture. Over time, the protective patina improves corrosion resistance while giving the steel its distinctive brown appearance.
Compared with conventional structural steel grades, this material reduces maintenance costs, increases service life and delivers excellent durability in outdoor environments. Its combination of technical performance and unique appearance makes it a preferred solution for many construction and engineering applications.
Sidastico combines extensive stock availability with precision cut-to-size processing, certified quality and reliable deliveries. Customers benefit from steel sheets tailored to modern industrial production and supported by fast, dependable service.
Standard
USX CORP (proprietary)
Identification Number
–
Classification
–
Type
Unalloyed Steel
Rolling State
AR – Rolling blank
Brief Description
Structural steel resistant to atmospheric corrosion, slightly oiled for surface protection.
Anti-corrosive properties.
Corrosion resistant steels slow down the deterioration of chimneys and flues.
Applications
Architectural façades, chimneys, bridges, containers, industrial tanks and filters.
Standard Coil Stock Range
| Corten A | 1250 | 1500 |
|---|---|---|
| 0,6 | ● | |
| 0,8 | ● | ● |
| 1 | ● | ● |
| 1,2 | ● | ● |
| 1,5 | ● | ● |
Chemical Composition
Regulatory standard
| Element | Value |
| C (%) | ≤ 0,21 |
| Si (%) | ≤ 0,75 |
| Mn (%) | ≤ 0,50 |
| P (%) | ≤ 0,15 |
| S (%) | ≤ 0,03 |
| AI (%) | ≤ 0,06 |
| Nb (%) | |
| Ti (%) | |
| V (%) | |
| Mo (%) | |
| Cu (%) | ≤ 0,55 |
| Element | Value |
| Cr (%) | ≤ 1,25 |
| Ni (%) | ≤ 0,65 |
| N (%) | |
| B (%) | |
| Nb+Ti+V (%) | |
| Cr+Mo+Ni (%) | |
| Ni+Cr+Cu+Mo (%) | |
| C.E.V. (%) | ≤ 0,40* |
C.E.V. (%) = C+(Mn/6)+[(Cr+Mo+V)/5]+[(Ni+Cu)/15]
Mechanical Properties
According to UNI EN 10028
| Mechanical characteristics | Direction | Thicknesses | Values |
| Re (MPa) | T | < 3 | ≥ 310 |
| Rm(MPa) | T | ≤ 3 | ≥ 450 |
| A80 (%) | T | < 3 | ≥ 22 |
| A5 (%) | |||
| Bend Test 180° | |||
| KV 20°C (J) | |||
| KV 0°C (J) | |||
| KV -20°C (J) | |||
| KV -40°C (J) | |||
| KV -50°C (J) |
* = Standard option
t = thickness in mm of the test piece for the bend test
L = Tensile testing carried out on longitudinal test pieces
T = Bend tests carried out on cross-cut test pieces
Tolerances
Tolerances on the dimensions and on the shape EN10131: 2006
Certifications
Proprietary standard
DISCLAIMER: SIDASTICO S.p.A. declines any and all liability for the accuracy and precision of the information herein and reserves the right to modify any part without advanced notice.
We would like to become your trusted partner.
If you have any questions, please do not hesitate to contact us!
Via Astico, 44
36030 Fara Vic.no (VI) – IT
Tel. +39 0445/869500
info@sidastico.com
© 2025 – SIDASTICO SPA UNIPERSONALE – P. IVA 02931940247
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