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Concrinox TM
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Using stainless steel in concrete reiforcement structures
Available products |
IMPROVED BOND BARS AND WIRE RODS
COGNE ACCIAI SPECIALI offers a wide range of STAINLESS STEEL REBAR (BARS and WIRE ROD with improved bond) for reinforced concrete.
Specific and up-to-date production processes have been especially studied and set up to guarantee, in addition to the optimal heat resistance characteristics of stainless steel, the standard specifications required by different norms. The available dimensions can be used either for static and structural rehabilitation (cold drawn bars up to 12.0 mm round) for the preservation of the architectonic and artistic heritage, or for the construction of new and long-lasting buildings along with transport substructures for civil or military purposes (hot-rolled round bars above 14 mm).
STANDARD NORMS
The production of stainless steel rebar for reinforced concrete is in accordance with the ASTM A955M-96 (USA) and BS6744-2001 (UK) specifications.
The use of stainless steel rebar for reinforced concrete is laid down in the present Italian specifications (D.M. 9/1/96 and 16/1/96) Technical specifications exist for the calculation, execution and testing of normal and pre-stressed reinforced concrete structures and for metallic structure. Stainless steel can be used when its mechanical properties are equivalent to the stainless steel type FeB44K (minimum tensile strength 540 N/mm2, minimum yield strain 430 N/mm2)
| NORM | CLASS | Minimum rupture strenght (N/mm2) | Minimum Yield strength Rs (N/mm2) | minimum elongation to rupture (%) |
| DM 9/1/96 | FeB44K | 1,13xRs | 430 | 12 |
| BS 6744 | 500 | 1,10xRs | 500 | 14 |
| BS 6744 | 650 | 1,10xRs | 650 | 14 |
| ASTM A955M | 300 | 500 | 300 | 11-12 |
| ASTM A955M | 420 | 620 | 420 | 7-9 |
| ASTM A955M | 520 | 690 | 520 | 6-7 |
| UNE 36-067-94 | 500 | 600 | 500 | 18 |
| UNE 36-067-94 | 600 | 700 | 600 | 18 |
| EN 10088 | B450C | 1,15xRs | 450 | 8 |
Stainless steel can be used if comparable with C steel in terms of mechanical properties , belonging to the same grade (for instance , for Italian standards , to steel classified as FeB44K).
Cogne Acciai Speciali production guarantees such properties for stainless steels making them suitable to reinforce concrete.
COGNE ACCIAI SPECIALI DIMENSIONS RANGES AND GRADES
| C.A.S. Grade | EN 10088 | Wire rod in coils | Round bars |
| 304 HT | 1.4301 | 3,0 mm - 14,0 mm | 3,0 mm - 50,0 mm |
| 316 HT | 1.4401 | 3,0 mm - 14,0 mm | 3,0 mm - 50,0 mm |
| 316 HTM | 1.4436 | 3,0 mm - 14,0 mm | 3,0 mm - 50,0 mm |
| 316 THT | 1.4571 | To be specified when placing the order | To be specified when placing the order |
| 329 HT | 1.4462 | To be specified when placing the order | 3,0 mm - 50,0 mm |
Download the TECHNICAL SHEET in PDF format.
PARTICULAR FEATURES
COMPATIBILITY with other metallic materials used in the building sector and EASY WELDING.
COGNE PRODUCTS IDENTIFICATION
HOT-ROLLED BARS
THE REBARS PRODUCED BY COGNE ACCIAI SPECIALI ARE MARKED ACCORDING TO THE ITALIAN AND EUROPEAN NORMS ENV 10088/94.
COLD DRAWN BARS
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In accordance with the ministerial decrees D.M. 9/1/96 and 16/1/96, Cogne Acciai Speciali products for building application are certified by the Section 'Scienze della Costruzione e Geo-struttura' of the 'POLITECNICO DI TORINO'. |
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Cogne Acciai Speciali products for building application are certified by CARES UK. |
You can download the certificates in PDF format in the 'Quality certifications' section.