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| Brand Name: | yue lin sen |
| Model Number: | Y2259 |
| MOQ: | 100 pcs |
| Price: | 0.5-20 |
| Payment Terms: | T/T |
| Supply Ability: | 5000000pcs |
| Category | Parameter | Details / Specification |
|---|---|---|
| Base Material | Material | 42CrMo Alloy Steel (Equivalent to AISI 4140/4142, DIN 1.7225) |
| Pre-Machining State | Typically supplied as annealed/hot-rolled round bar for optimal machinability | |
| Heat Treatment | Process | Quench and Temper (Through-Hardening) |
| Core Hardness | Customizable. Common ranges: 28-32 HRC: High strength with good toughness 35-40 HRC: Higher wear resistance (Specify target value) |
|
| Case Hardness | Generally same as core (through-hardened). Induction hardening for specific surface areas can be specified separately | |
| Surface Treatment | Process | Black Oxide (Hot Blackening) per AMS 2485 or similar |
| Coating Properties | Provides a black, matte finish. Offers mild corrosion resistance, absorbs oil to improve lubricity, and reduces light reflection. Not a plating; minimal dimensional change | |
| Coating Thickness | Very thin, typically 0.5-1.5 µm | |
| Component Geometry | Type | Long Shafts, Axles, Piston Rods, Rotary Pins |
| Key Features | Steps, diameters, keyways (to DIN 6885/ISO 773), splines (to DIN 5480/ANSI B92.1), threads (metric/Unified), grooves, flats, drilled cross-holes | |
| Dimensions & Precision | Diameter Range | Ø10 mm to Ø150 mm (machinable) |
| Length-to-Diameter Ratio | Capable of machining long shafts; L/D ratios up to 20:1 or more with proper support and process control | |
| As-Machined Tolerance | Before heat treat: ±0.05 mm on diameters. Critical journals/bearing fits may be machined oversize to allow for final grinding post-HT | |
| Post-HT & Grinding Tolerance | If ground after heat treatment: ±0.01 mm achievable on critical diameters | |
| Manufacturing Process | Sequence | 1. CNC Turning/Milling (Annealed State) → 2. Heat Treatment (Quench & Temper) → 3. (Optional) Straightening/Centerless Grinding → 4. Black Oxide Treatment |
| Quality Assurance | Dimensional inspection pre & post-HT. Hardness testing (Rockwell C). Visual inspection of black oxide coating | |
| Material Certification (Chemical & Mechanical), Heat Treat Certificate (Process & Hardness), Dimensional Inspection Report | ||
| Traceability | Full traceability of material and processing steps maintained |
Address
Room 203, Building 2, Ande Alley, Changan Town, Dongguan City, Guangdong Province
Tel
86--13267262720
