PRESTRESSING WIRES. NEDRI Product Range: Prestressing wires. Type. Relaxation. Surface. Indentation. Coil/ ring weight. Ring sizes.

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1 PRESTRESSING WIRES NEDRI Product Range: Prestressing wires NEDRI s prestressing steel guarantees the durability and quality of prefab construction, infra structural and large industrial projects on-shore and offshore, as years of satisfied customers can testify. Range of dimensions ø mm Type Relaxation Surface Indentation as drawn or thermo mechanical heat treated (stabilised) extra low relaxation plain or indented according to Euronorm or on your specification Coil/ ring weight Ring sizes Coil sizes Wire on cut length Bundle weight kg Inside diameter : mm Outside diameter : mm Height : mm Inside diameter : mm Outside diameter : mm Height : mm We deliver wire on cut length: mm If required we can thread the cut wire kg If you need wire, which is not included in our product range, please do not hesitate to contact us. We will try to comply with your specifications regarding special dimensions, properties or packaging. Our technicians will be glad to help you find a technical and economic solution for your needs. Ask for our other Product brochures as well NEDRI Spanstaal BV is ISO certified by Lloyd s Register Quality Assurance and is a member of ESIS: European Stress information Service

2 Our prestressing steel wires are supplied in accordance with the following product certificates Technical requirements for: Netherlands: NEN 3868 Product certificate K7190: Round wires, plain or indented FeP : ø mm FeP : ø mm Product certificate K7369: Round plain wires for the prestressing of concrete tubes FeP : ø 3.1 mm FeP 1620: ø mm FeP : ø 5.0 mm FeP 1520: ø mm Germany: DIN 4227 Zulassungs number Z Round wires, indented St /: ø mm Zulassungs number Z Round wires, indented ST 1470/: ø mm Zulassungs number Z / 80 Round wires, indented or special ind. St 1375/: ø 9.5 mm 10,5 mm Zulassungs number Z Round wires, special indentation St 1375/: ø 5,5 mm 8,0 mm Zulassungs number Z Round wires, plain ST / : ø mm Zulassungs number Z Round wires, plain St 1470/: ø mm Zulassungs number Z Round wires, plain St 1470/: ø 8,0 9,4 mm Belgium: NBN I France: ASQPE «CSP AP RT1 rev 3» Règlement de certification des armatures de precontrainte et XP A Round wires, plain or indented FeP : ø mm FeP : ø mm Specifications according to ASQPE, round wire indented CA and CB Homologation number 45 Rev. 0/ 3 Round wires, indented FeP / 1860: ø 4.0 mm -5 mm Homologation number 18 Rev. 3 Round wires, plain and indented FeP : ø mm Poland: NBr 9 / c 10 / 93 /1 Switzerland Round wires plain or indented ø mm wires indented 4,0 mm 5,0mm 4 mm FeP 1860, 5 mm FeP

3 Our prestressing steel wires are supplied in accordance with the following standards Technical requirements according to: PrEN 10138, part 1 & 2 Euronorm BS 2691 ASTM A 421 ASTM A 648 ASTM A 821 ASTM A 881 / A 881 M SIA 162 and SIA 162 / 1 ÖNORM B 4258 AWWA C301 ASQPE Poland 217/ 01 AT / 2010 ITB AT IBDiM Delivery according to other standards or specifications is always possible. Prestressing Steel: Wire Prestressing Steel Specification for: Steel Wire For High Tensile Steel Wire And Strand For The Prestressing Of Concrete Standard specification for: Uncoated Stress-Relieved Steel Wire For Prestressing Concrete Standard specification for: Steel Wire, Hard-drawn For Prestressing Concrete Pipe Standard specification for: Steel Wire, Hard-drawn For Prestressed Concrete Tanks Standard specification for: Steel Wire, Deformed, Stress-relieved Or Low Relaxation For Prestressed Concrete Railroad Ties Prestressing steel (Switzerland) Prestressing steel (Austria) AWWA standard for prestressed concrete pressure pipe, steel-cylinder type, for water and other liquids: plain wire Prestressing steel wires, plain and indentede Prestressing steel wires plain or indented indented

4 The mechanical properties of our prestressing steel wires are in accordance with various standards Nominal diameter mm 4.0 NL 4.0 EU Section mm Nominal mass g/m % proof load kn 1 ) Tensile strength N.mm Breaking load kn 1 ) Elongation % Striction % Young smodulus kn/mm GE ) FR 5.0 NL 5.0 EU 5.5 GE 5.5 GE 6.0 NL 6.0 EU ) ) EU NL 7.0 EU EU NL 8.0 EU GE ) EU 9.4 GE 9.5 EU 9.5 GE ) ) GE ) ): These values are characteristic values 2 ): This value is the 0.2 % proof load The special properties of our prestressing steel wires are in accordance with different standards Type or test Requirement Remark Relaxation <2% at a level of 0.7 x Tensile strength See a typical test result of a 7 mm wire in the graph on the next pages Fatigue Corrosion behaviour Tensile test No rupture before 2 million cycles Rupture after a mean time of more than 4 hours, with a minimum of 1.5 hours in the FIP corrosion test See the typical curve of a tensile test performed on a 7 mm wire

5 Test type: Tensile test According to: NEN 3868 Nominal diameter : 7.0 mm Quality : Heatnumber : Coilnumber : ND1400 Force (N) Load-extension diagram Elongation (%) Mechanical Properties Cross-sectional area Breaking load Tensile strength 0.1 % yield load 0.1 % yield strength 0.2 % yield load 0.3 % yield strength Elongation at max. load mm 2 kn N/mm 2 kn N/mm 2 kn N/mm 2 %

6 Test type: Relaxation test According to: NEN 3868 Nominal diameter : 7.0 mm Quality : Heat number : Coil number : ND1400 Initial load Duration of test Temperature Test parameters kn 1000 Hours 20 o C Relaxation curve time (min.) Relaxation Test results 1.22 % after 1000 h