Überblick
HDC Manufacturing is your eminent hub for tailored fabrication of metallic components, boasting a wealth of ten years’ proficiency. Our avant-garde production facilities showcase cutting-edge 4-axis and 5-axis machining centers, complemented by sophisticated scrutiny apparatus like Coordinate Measuring Machines (CMMs). HDC Manufacturing takes great pride in an array of machining alternatives, encompassing CNC-Bearbeitung, Gießen, Schmieden, Laser schneiden, und Metall-Stanzen.
Delving into the realm of 42CrMo4 Steel Machining, HDC Manufacturing emerges as a steadfast ally laden with abundant expertise. Our adept team harnesses the most recent technologies and refined methodologies, ensuring the zenith in processing 42CrMo4 steel. Whether entailing intricate detailing or robust structural elements, HDC Manufacturing stands primed to dispense precision and eminence in 42CrMo4 steel machining.
Unveil the myriad prospects with HDC Manufacturing as your entrusted collaborator in the realm of 42CrMo4 steel machining. Our unwavering dedication to excellence, fortified by years of industry acumen, guarantees that your custom metal components align with the utmost standards. Connect with HDC Manufacturing today and let us be your preeminent choice for all facets of 42CrMo4 steel machining.
Was ist 42CrMo4-Stahl?
42CrMo4 steel is one of the frequently used alloy steels that is characterized by its high strength, great toughness, and good hardenability. It is certainly a chromium-molybdenum one that is characterized by the European standard EN 10083-3. The “42” stands for the approximate carbon content which is 0.42% (carbon), while CrMo means chromium (Cr) and molybdenum (Mo) are added as alloying components. This steel is in demand where elevated tensile strength is required, such as in gears, shafts, axles, connecting rods, heavy duty machinery components, and so forth. 42CrMo4 steel could be thermally processed to achieve desired mechanical properties, which would include increased hardness and wear resistance. It is normal to supply it in the quenched and tempered condition that produces a hardened microstructure that meets the extreme demands for various applications in cars, aircraft, and manufacturing fields.
What are the Other Names for 42CrMo4 Steel?
The 42CrMo4 steel known for its high strength, toughness, and hardenability bears as many names as international standards and industrial practice have. Refereed to as 1.7225 steel in the European Union, commercially referred to as SCM440 steel in Japan, it is an engineering structural steel. In the United States, the steel is sometimes referred to as 4140 steel, even though it does not entirely correspond in composition, it possesses similar properties and applications. In the end, all trade names are a reference to the same Cr-Mo steel alloy widely used in industries that demand robust materials for such applications as gears, shafts, axles, and heavy duty components of machinery.
Die Grenzen von 42CrMo4-Stahl
Although boasting some outstanding mechanical attributes, 42CrMo4 steel has weak points that also need to be considered. Weldability can be difficult because of its high hardenability, and thus a need for preheating and post-weld heat treatments to avoid crack formation. Machining might also have some problems, especially in the hardened condition, since the adjustment of suitable parameters and tool materials would need to be carefully made. On the other hand, the steel cost can be high compared to low-alloy steel alternatives because of the alloying of chromium and molybdenum. Compared to plain carbon steels, 42CrMo4 provides a reasonable corrosion resistance, but the corrosion resistance still does not compete with stainless steels or other special alloys. Such limitations put into relief the fact that strict application requirements should be taken into account and that untrimmed components made of 42CrMo4 steel must be used properly for the best performance of these components.
Chemische Zusammensetzung von 42CrMo4-Stahl
42CrMo4 steel is a strong, hardenable heat-treatable steel with good machinability, strength, wear resistance, toughness, and poor weldability, recognized as an excellent alternative to expensive alloys, like chrome-nickel and chrome-nickel-molybdenum steels. It is commonly used for parts of automotive, armament, mechanical engineering, and more required to be worn, bent, and load. 
| Komponente | Wt.% |
| Kohlenstoff (C) | 0,38 – 0,45 |
| Chrom (Cr) | 0,90 – 1,20 |
| Mangan (Mn) | 0,60 – 0,90 |
| Molybdän (Mo) | 0,15 – 0,30 |
| Phosphor (P) | 0,0 – 0,025 |
| Silizium (Si) | 0,0 – 0,40 |
| Schwefel (S) | 0,0 – 0,035 |
| Eisen (Fe) | Gleichgewicht |
Der Einfluss der chemischen Zusammensetzung auf die Eigenschaften von 42CrMo4-Stahl
The mechanical performance of 42CrMo4 steel is characterized by its chemical composition which mainly contains chromium and molybdenum for yield strength and hardenability. Controlled carbon content provides balance for both the strength and the ductility, while manganese helps in developing the toughness. Silicon enables us to make grains more refined and is also helpful in oxidation resistance. The levels of phosphorus and sulfur are minimised so that nobody would face brittleness and problems with machinability. The optimal composition design that this steel exhibits guarantees it is usable in diverse settings hence the preference for it in sectors like automotive manufacturing and machine building.
Mechanische Eigenschaften von 42CrMo4-Stahl
| Durchmesser, d mm | ≤ 16 | 16-40 | 40-100 | 100-160 | 160-250 |
| Dicke, t mm | < 8 | 8-20 | 20-60 | 60-100 | 100-160 |
| Streckgrenze, Mpa | ≥900 | ≥750 | ≥650 | ≥550 | ≥500 |
| Zugfestigkeit, Mpa | 1100-1300 | 1000-1200 | 900-1100 | 800-950 | 750-900 |
| Dehnung, % | ≥10 | ≥11 | ≥12 | ≥13 | ≥14 |
| Reduction of area,% | ≥40 | ≥45 | ≥50 | ≥50 | ≥55 |
| Einschlag | ≥30 | ≥35 | ≥35 | ≥35 | ≥35 |
Physikalische Eigenschaften von 42CrMo4-Stahl
| Physikalische Eigenschaften | Metrisch | Englisch | Kommentare |
| Dichte | 7,80 g/cm³ | 0,282 Pfund/Zoll² | |
| Elastizitätsmodul | 210 GPa | 20500ksi | |
| Schermodul | 80,0 GPa | 11600 ksi | |
| Poissons-Verhältnis | 0.3 | 0.3 | |
| Elektrische Eigenschaften | |||
| Elektrischer widerstand | 0,0000200 – 0,0000250 Ohm-cm | Typisch Stahl | |
| Thermische Eigenschaften | |||
| Spezifische Wärmekapazität | 0.460 – 0.490 J/g-°C | 0.110 – 0.115 BTU/lb-°F | 50,0 – 100 °C |
| Wärmeleitfähigkeit | 40.0 – 45.0 W/m-K | 278 – 312 BTU-in/hr-ft²-°F | Typisch Stahl |
Äquivalente Materialien von 42CrMo4-Stahl
| EU | DE | 42CrMo4 | |
| Vereinigte Staaten von Amerika | – | 4140 4142 | |
| Deutschland | DIN, WNr | 42CrMo4 | |
| Japan | JIS | SCM440H | |
| Frankreich | AFNOR | 42CD4 | |
| England | BS | 708M40 CFS11 | |
| Italien | UNI | 42CrMo4 | |
| Spanien | UNE | 40CrMo4 F1252 | |
| China | GB | 42CrMo | |
| Schweden | SS | 2244 | |
| Finnland | SFS | 42CrMo4 | |
| Russland | GOST | 35 KHM 38 KHM | |
| Inter | ISO | 42CrMo4 | |
Chemische Zusammensetzung von 42CrMo VS 4140 VS 42CrMo4(1.7225)
| Chemische Zusammensetzung % | |||||||||
| Land | Standard | Stahlsorte (Materialnummer) | C | Si | Mn | P | S | Kr | Mo |
| China | GB/T 3077 | 42CrMo | 0,38 bis 0,45 | 0,17 bis 0,37 | 0,50 bis 0,80 | ≤ 0,030 | ≤ 0,030 | 0,90 bis 1,20 | 0,15 bis 0,25 |
| Vereinigte Staaten von Amerika | SAE, AISI; ASTM A29/A29M | SAE 4140 | 0,38 bis 0,43 | 0,15 bis 0,35 | 0,75 bis 1,00 | ≤ 0,035 | ≤ 0,040 | 0,80 bis 1,10 | 0,15 bis 0,25 |
| EU | EN 10083-3 | 42CrMo4 (1.7225) | 0,38 bis 0,45 | ≤ 0,40 | 0,60 bis 0,90 | ≤ 0,025 | ≤ 0,035 | 0,90 bis 1,20 | 0,15 bis 0,30 |
| EU | EN 10083-3 | 42CrMoS4 (1.7227) | 0,38 bis 0,45 | ≤ 0,40 | 0,60 bis 0,90 | ≤ 0,025 | 0,020 bis 0,040 | 0,90 bis 1,20 | 0,15 bis 0,30 |
Geeignete Verarbeitungsmethoden für 42CrMo4-Stahl
42CrMo4 steel can be machined, subjected to heat treatment, welded, forged, and given surface treatments to get the desirable properties. The machinability of a material allows techniques like drilling and milling to be mostly used. Heat treatment, such as quenching and tempering, is advantageously used to improve the mechanical properties. Welding requres care to avoid cracking. According to the heat, treating strengthens the steel’s microstructure and thus increases its strength and toughness. Shot blasting is a surface treatment that helps to avoid corrosion. Hence, these techniques offer great flexibility in producing components for various industries such as automotive, aerospace, machine, and construction businesses.
Anwendungen von 42CrMo4(1.7225) Stahl
- Automobil:
- Radadapter, Blockwache, Ventildeckel, Ölmessstab, und Schaltknauf Aus 42CrMo4-Stahl gefertigt, bieten sie langlebige und hochfeste Komponenten für verbesserte Fahrzeugleistung, individuelle Anpassung und Zuverlässigkeit.
- Luft- und Raumfahrt:
- Abgaskrümmer, Laufrad, Rohrverschraubung, und Ventilkörper Präzisionsgefertigt aus 42CrMo4-Stahl tragen sie zu leichten, hitzebeständigen und leistungsstarken Luft- und Raumfahrtsystemen bei und gewährleisten optimale Funktionalität und Sicherheit.
- Medizinisch:
- Medizinische Schrauben, Medizinische Präzisionskomponenten, und Stromversorgungsgehäuse für medizinische Sensoren Hergestellt aus 42CrMo4-Stahl bieten sie Präzision, Festigkeit und Korrosionsbeständigkeit für kritische medizinische Anwendungen und verbessern die Implantatstabilität und den Sensorschutz.
- Kundenspezifische Konsumgüter:
- Anschweißscharniere, Klavierscharniere, Kugelscharniere, Benutzerdefinierte Mountainbike-Teile, und Benutzerdefinierte BMX-Teile Aus 42CrMo4-Stahl gefertigt, bieten sie robuste und maßgeschneiderte Lösungen für Verbraucherprodukte und gewährleisten Langlebigkeit und Zuverlässigkeit.
- Motorrad:
- Kettenräder, Billet-Räder, Radnaben, Fußrasten, und Aftermarket-Kühler Hergestellt aus 42CrMo4-Stahl bieten sie Haltbarkeit, Festigkeit und Hitzebeständigkeit für Hochleistungsmotorräder und verbessern sowohl die Ästhetik als auch die Funktionalität.
- Anhänger:
- Das Koppler-Reparatursatz, Federstiftverriegelung, Koppler, Kupplungsball, Zapfenhaken, Trailer-Jack, und Anhängerrampe Hergestellt aus 42CrMo4-Stahl gewährleisten zuverlässige und sichere Anhängerverbindungen, Reparatur- und Lademöglichkeiten für ein effizientes Abschleppen.
- Fahrrad:
- Fahrradvorbauten, Kettenblätter, Fahrradnaben, Fahrradpedale, und Kurbelgarnituren Aus 42CrMo4-Stahl gefertigt, bieten sie leichte, langlebige und leistungsstarke Komponenten für Fahrräder und verbessern das Fahrerlebnis und die Leistung.
- Kart:
- Kettenräder, Unterlegscheiben und Distanzstücke, Radnaben, Lager, Lenkräder, und Felgen Die aus 42CrMo4-Stahl gefertigten Kartkomponenten tragen zur Präzision, Festigkeit und Haltbarkeit bei und sorgen für optimale Leistung und Sicherheit auf der Rennstrecke.
