Alform钢材报告

Steel GradesALFORM 180 N ALFORM 200 N ALFORM 240 N ALFORM 280 N ALFORM 380 NALFORM 280 M ALFORM 315 M ALFORM 355 M ALFORM 380 M ALFORM 420 M ALFORM 460 M ALFORM 500 M ALFORM 550 M ALFORM 600 M ALFORM 650 M ALFORM 700 M ALFORM 900 MThe steel grades of the ALFORM®series have excellent cold-formability and are offered with minimum yield strengths in the range of 180 to 900 N/mm2.The grades on the higher-strength levels are for applications in which it is important to have good cold-forming properties (e.g. small bending and edging radii) as well as higher yield strength. ALFORM®steels can be supplied in normalised and ther-momechanically rolled condition.A major difference between these as-delivered conditions results from the fact thata)normalised rolled steels show the guaranteed minimum yield strengths even afternormalising and hence in general are also suitable for cold-forming, whereasb)thermomechanically rolled steels can be stress-relief annealed in the temperaturerange 530–580°C, but the yield strength and the tensile strength decrease during normalising.In contrast to comparable standard steel grades the ALFORM®steel grades feature a lower content of elements such as phosphorus and sulphur in order to ensure best forming and toughness properties. They are based on chemical compositions with a low carbon content and thus show an excellent weldability due to the low carbon equivalent. In addition, they are characterised by a fine-grain, low pearlite or bainitic structure. This applies in particular to the thermomechanically rolled ALFORM®steels which combine the highest minimum yield strength with excellent cutting and punch-ing quality, cold-formability and weldability as a result of the addition of microalloy-ing elements (Nb, V, Ti) and exact adjustment of the rolling parameters.EXCELLENTCOLD-FORMABILITYNORMALISED ROLLED STEELSTHERMO-MECHANICALLY ROLLED STEELSLOW CONTENT OF PHOSPHORUS AND SULPHURTECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 20041The tables below provide an overview of current standards and steel grades whichare comparable with our ALFORM®steels.ALFORM®STEEL GRADESCOMPARISON TABLEComparison TableThe steel grades marked1)can also be supplied in laser cutting quality.2)invalid standard – substituted by EN 101492TECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 2004A L F O R M®S T E E L S–N O R M A L I S E D R O L L E DCHEMICAL COMPOSITIONGuaranteed values of heat analysis in %1)The total of Nb, V and Ti may not exceed 0.15% (0.22% max. pursuant to EN 10149-3).2)If the steel grades ordered are to be galvanised, the following restrictions apply:Maximum of Si 0.03% and a maximum of P 0.018%CHEMICAL COMPOSITIONTECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 20043TECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 20044MECHANICAL PROPERTIES1)If requested in the order, the notch impact energy is calculated from plate thickness ≥6.0 mm.MECHANICAL PROPERTIESA L F O R M®S T E E L S–T H E R M O M E C H A N I C A L LY R O L L E DCHEMICAL COMPOSITIONGuaranteed values of heat analysis in %for this specialty steel there is no corresponding standard steel gradeEN 10149-2for this higher-strength specialty steel there is no corresponding standard steel gradeEN 10149-2for this ultra-high strength specialty steel there is no corresponding standard steel grade1)The total of Nb, V and Ti may not exceed 0.22% (not applicable to ALFORM®900 M).2)If the ordered steel grades up to and including ALFORM®550 M are to be galvanised, the following restrictionsapply: Maximum of Si 0.03% and a maximum of P 0.018%.CHEMICAL COMPOSITIONTECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 20045TECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 20046MECHANICAL PROPERTIESfor this specialty steel there is no corresponding standard steel gradefor this higher-strength specialty steel there is no corresponding standard steel gradeMECHANICAL PROPERTIESfor this ultra-high strength specialty steel there is no corresponding standard steel grade1)For thicknesses > 8 mm values may be 20 N/mm 2lower.2)If requested in the order, the notch impact energy is calculated from plate thickness ≥6.0 mm.B R I E F I N F O R M AT I O N O N E D G E SProvided the edging has been carried out properly, the inner edging radii listed in the table below are guaranteed without crack formation for the finished component. For ALFORM®steels with guaranteed tensile strengths ≤500 N/mm2the smallest admissible inner radius can be adjusted by varying the die widths, for the higher-strength steels by appropriate punch radii.The values guaranteed for ALFORM®steels for the smallest admissible inner radius on the finished component are, with the same strength, not only clearly better than for structural steels pursuant to EN 10025, but also for thermomechanically rolled steels pursuant to EN 10149.SMALLEST ADMISSIBLE INNER EDGING RADIUS90°edgingSteel Grade s = nominal thicknessminimum inner edging radiuss < 3 mm s = 3 – 6 mm s > 6 mm ALFORM 180 N0.25 s0.5 s 1.0 s ALFORM 200 N0.25 s0.5 s 1.0 s ALFORM 240 N0.25 s0.5 s 1.0 s ALFORM 280 N0.25 s0.5 s 1.0 s ALFORM 380 N0.25 s0.5 s 1.0 s ALFORM 280 M0.25 s0.5 s0.8 s ALFORM 315 M0.25 s0.5 s0.8 s ALFORM 355 M0.25 s0.5 s0.8 s ALFORM 380 M0.25 s0.5 s0.8 s ALFORM 420 M0.5 s 1.0 s 1.0 s ALFORM 460 M0.5 s 1.0 s 1.4 s ALFORM 500 M 1.0 s 1.2 s 1.6 s ALFORM 550 M 1.0 s 1.2 s 1.8 s ALFORM 600 M 1.0 s 1.5 s 1.8 s ALFORM 650 M 1.0 s 1.5 s 2.0 s ALFORM 700 M 1.0 s 1.5 s 2.0 s ALFORM 900 M 2.0 s 2.5 s 3.0 s SMALLEST ADMISSIBLE INNER EDGING RADIUSTECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 20047TECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 20048The graphs represent thickness with symmetric tolerances.Please contact our sales departments for dimensions in thicknesses below 900 mm (production in transverse and longitudinal slitting lines).A L F O R M 180 NAVAIL ABL E DIMENSIONS SOFT UNAL L OYED STEEL SAVAIL ABL E DIMENSIONSSOFT UNAL L OYED STEEL SA L F O R M200NThe graphs represent thickness with symmetric tolerances.Please contact our sales departments for dimensions in thicknesses below 900 mm (production in transverse andlongitudinal slitting lines).TECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 20049SOFT UNAL L OYED STEEL SA L F O R M240NThe graphs represent thickness with symmetric tolerances.Please contact our sales departments for dimensions in thicknesses below 900 mm (production in transverse and longitudinal slitting lines).STRUCTURAL STEEL SA L F O R M280NThe graphs represent thickness with symmetric tolerances.Please contact our sales departments for dimensions in thicknesses below 900 mm (production in transverse and longitudinal slitting lines).STRUCTURAL STEEL SA L F O R M380NThe graphs represent thickness with symmetric tolerances.Please contact our sales departments for dimensions in thicknesses below 900 mm (production in transverse and longitudinal slitting lines).MICRO-AL L OYED STEEL SA L F O R M280M,A L F O R M315MThe graphs represent thickness with symmetric tolerances.Please contact our sales departments for dimensions in thicknesses below 900 mm (production in transverse and longitudinal slitting lines).MICRO-AL L OYED STEEL S A L F O R M355M,380MMICRO-AL L OYED STEEL SA L F O R M420MMICRO-AL L OYED STEEL S A L F O R M460MMICRO-AL L OYED STEEL SA L F O R M500MMICRO-AL L OYED STEEL S A L F O R M550MMICRO-AL L OYED STEEL S A L F O R M600M,A L F O R M650M,A L F O R M700MTECHN ICAL DELIVERY TERMS HOT-ROLLED WIDE STRIP · MARCH 200420The graphs represent thickness with symmetric tolerances.Please contact our sales departments for dimensions in thicknesses below 900 mm (production in transverse and longitudinal slitting lines).A L F O R M 900 MAVAIL ABL E DIMENSIONSMICRO-AL L OYED STEEL S。