Material Description. Surface Treatment

Transkript

1 WS = alloyed tool steel Material No , or similar. A medium-alloy, strong tool steel with average edge-holding properties. Material Description HWS = High-Speed Working Steel with 12 % Cr Material No , , or similar. A robust, strong and wear-resistant high-speed steel with good edge-holding properties. HSS = Superspeed Steel Material No An abrasion-proof superspeed steel due to the content of either Tungsten or Molybdenum with high thermal stability. ASP = Superspeed Steel manufactured powder metallurgically Material No. ASP 23, ASP 30, ASP 60 Due to the homogeneous structure a higher fatigue strength and resistance to wear and abrasion is obtained. CPM = High Speed Steel manufactured powder metallurgically Material No. CPM V, CPM 10 V Superspeed Steel manufactured powder metallurgically Material No. CPM Rex 4 Due to the high content of Carbon and Vanadium resistance to wear and abrasion and edge-holding properties is increased. Hard Material = Ferrotitanite or Ferro-Tic Material No. WFN, Type CM The even distribution of Titanium Carbide guarantees less corrosion and pitting and high wear resistance. Nitrided Hot-Work Steel = Material No , Cr-Mo-V alloy Hot-Work Steel with a core hardness of approx HRc and a surface hardness of approx. 50 HV 0,3. Surface Treatment Longer Exposure Times can be obtained with the following Surface Treatments: Nitriding suitable for: 1.237, , ASP 23, ASP 30, ASP 60, CPM Rex 4, CPM 10 V or similar. TIC Coating (CVD Process) Colour: silver suitable for: 1.237, , or similar. Due to diffusion of Titanium Carbide the surface hardness increases to approx HV 0,05 with great core strength. This process is, however, only suitable for larger diameters as from approx. 5mm. TIN Coating (PVD Process) Colour: gold suitable for: , ASP 23, ASP 30, ASP 60, CPM Rex 4, CPM V, CPM 10 V or similar. A layer hardness of approx HV 0,05 at a layer thickness of 2-4 µm can be obtained. The low coating temperature (approx C) permits the coating of tools with the minimum of tolerances. Partial coating is also possible. TICN Coating (PVD Process) Colour: grey suitable for: , ASP 23, ASP 30, ASP 60, CPM Rex M 4, CPM V, CPM 10 V or similar. The TICN layer combines the extreme hardness of a Carbide layer (TIC approx HV 0,05) with the advantageous chemical properties and the favourable sliding behavious of the nitriding layer (PVD approx C). Layer thickness is 3,0-5,0 µm. Microchrome Coating (MCP Process) Colour: silver suitable for: , , , ASP 23, ASP 30, ASP 60, CPM Rex M 4, CPM V, CPM 10 V or similar. Chromium plating improves the roughness of the surface and increases surface hardness to more than 1000 HV (= HRc). The procedure is suitable for very thin parts, as the layer thickness can be varied (0) Fax +4(0)

2 Grades for steel bolts and screws Description system The most important mechanical characteristics regarding steelmade bolts are designated by means of a two-digit number combination, as per the following example: 8.8 The first fugure indicates 1 / 100 of the minimum tensile strength in N/mm 2 stress area. For this example tensile strength 8 x 100 = 800 N/mm 2. The second figure indicates the 10-fold relationship of the nominal yield stress R el (or R p 0,2 ) to the nominal tensile strength R m (yield point relationship). Minimum yield stress R el. 10 Minimum tensile strength R m Multiplication of the two figures results in 1 / 10 of the minimum yield stress in N/mm 2. For this example minimum yield stress 8 x 8 x 10 = 640 N/mm 2. Mechanical characteristics of bolts according to grades Characteristics Grades Μ16 > M16 * Tensile strength Nominal value Rm in N/mm 2 min Yield stress Nominal value ReL in N/mm 2 min Stress at permanent set limit Nominal value R p 0,2 in N/mm 2 min Elongation after fracture A5 in % min * Bolts for steel structures = M12 / > M12 Comment The content of this list of steel properties is based on our longstanding technical experience. Data and tips contained therein are to be seen as an orientation for professionals. The listed steels correspond to the relevant DIN Standards or the Steel/Iron specification sheets. This list is purely of technical nature and does not contain any assurances whatsoever with regard to properties and quality as right of purchase (0) Fax +4(0)

3 Massnormen für Stahl Form Ausführung Toleranz DIN Flachstahl blank 174 Flachstahl geschliffen 5350 Flachstahl gewalzt 1017 Kaltbänder 1544 Keilstahl blank 6880 Rundstahl geschliffen h Rundstahl blank h7 670 Rundstahl geschliffen h Rundstahl blank h 671 Rundstahl blank h Rundstahl gewalzt 1013 Sechskantstahl blank 176 Sechskantstahl gewalzt 1015 Stahlwellen blank h 66 T-Profil gewalzt 1024 I-Profil (Doppel T) gewalzt 1025 U-Profil gewalzt 1026 Vierkantstahl blank 178 Vierkantstahl gewalzt 1014 Winkelstahl blank 5370 Winkelstahl gewalzt (gleichschenklig) 1028 Winkelstahl gewalzt (ungleichschenklig) 102 DIN-Bezeichnungen, alt und neu für DIN EN Neu Alt Neu Alt Neu Alt Neu Alt DIN EN DIN DIN EN DIN 1651 DIN EN DIN DIN EN DIN S235JRG2C Z St SMn30 SMn 28 C10R - C35E Ck 35 E25GC Z St SMnPb30 SMnPb 28 C15R Cm 15 C35R Cm 35 E335GC Z St SMn37 SMn 36 C16R - C40E - S355J2G3C Z St SMnPb37 SMnPb 36 16MnCrS5 16 MnCrS 5 C40R - DIN S20 10 S 20 16MnCrB5 - C45E Ck 45 C10 C10 10SPb20 10 SPb 20 20MnCrS5 20 MnCrS 5 C45R Cm 45 C15 C15 15SMn13-16NiCrS4 - C50E - C16-35S20 35 S 20 15NiCr13 - C50R - DIN SPb20 35 SPb 20 20NiCrMoS NiCrMoS 2 C60E Ck 60 C35 C35 36SMn14-17NiCrMoS6-2 - C60R Cm 60 C40-36SMnPb14-34CrS4 34 CrS 4 C45 C45 38SMn28-41CrS4 41 CrS 4 C50-38SMnPb28-25CrMos4 25 CrMos 4 C60 C60 44SMn28-42CrMoS4 42 CrMoS 4 44SMnPb28-34CrNiMo6 34 CrNiMo 6 46S20 45 S 20 51CrV4 51 CrV 4 46SPb20 45 SPb 20 Lieferzustände (Fertigzustände mit oder ohne Wärmebehandlung) Fertigzustände Wärmebehandlungen +C K gezogen +A G weichgeglüht +FP BG behandelt auf +SH SH geschält +AC GKZ geglüht zur Erzielung kugeliger Karbide Ferrit-Perlit-Gefüge und Härtespanne +SL (SL) geschliffen +N N normalgeglüht (+S) S spannungsarm- +PL - poliert +QT V vergütet geglüht Anmerkung Die Zusammenstellung der Stahl-Werkstoffeigenschaften beruhen auf unserer langjährigen technischen Erfahrung. Die Daten und Hinweise stellen Orientierungshilfen für Fachleute dar. Die aufgeführten Stähle entsprechen den einschlägigen DIN-Normen oder den Stahl-Eisen-Werkstoffblättern. Die Zusammenstellungen sind rein technischer Natur und enthalten keinerlei Zusicherung irgendwelcher Eigenschaften kaufrechtlicher Art (0) Fax +4(0)

4 Rost- und säurebeständige Stähle (0) Fax +4(0)

5 Werkzeugstahl für Warmarbeit 36 +4(0) Fax +4(0)

6 Kaltzähe Baustähle (0) Fax +4(0)

7 Einsatzstähle und Automaten-Einsatzstähle (0) Fax +4(0)

8 Vergütungsstähle und Automaten-Vergütungsstähle (0) Fax +4(0)

9 Werkzeugstahl für Kaltarbeit (0) Fax +4(0)

10 Nichtmagnetisierbare Stähle (0) Fax +4(0)

11 Ventilstähle / Legierungen (0) Fax +4(0)

12 Unlegierte Werkzeugstähle (0) Fax +4(0)