Custom Alloy Steel Forged Cylinder for Marine Engine Crank Mechanism
Our Custom Alloy Steel Forged Cylinder is specifically designed for marine engine crank mechanisms, providing exceptional performance in demanding marine environments. Crafted from high-quality alloy steels such as 42CrMo4 or 35CrMo, each cylinder undergoes precision open-die forging, controlled heat treatment, and rigorous quality inspection to ensure maximum strength, durability, and dimensional accuracy.
Key Features:
Superior tensile strength and toughness to withstand high cyclic loads and vibration in marine engines.
Excellent fatigue and wear resistance for extended operational life.
Uniform internal grain structure to enhance reliability and minimize risk of failure.
Optional finish machining to meet strict tolerance and assembly requirements.
Applications:
This forged cylinder is widely used in marine diesel engines, heavy-duty propulsion systems, and large-scale industrial marine machinery, where high-pressure performance and long-term reliability are critical for safe and efficient operation.
| Item | Details (Custom Alloy Steel Forged Cylinder for Marine Engine Crank Mechanism) |
|---|
| Product Name | Custom Alloy Steel Forged Cylinder for Marine Engine Crank Mechanism |
| Material Grades | - 42CrMo4, 35CrMo, or 30CrNiMo8 – high-performance alloy steels offering superior strength, toughness, and fatigue resistance for heavy-duty marine engine applications |
| Forging Equipment | - Open-Die Forging Presses & Hydraulic Hammers: 8T / 12T / 16T – delivering deep deformation, optimized grain flow, and minimal internal defects for high-pressure marine engine components |
| Manufacturing Process | Raw Material Verification → Controlled Preheating → Open-Die Forging and Shaping → Normalizing → Quenching & Tempering (Q+T) → Rough Machining → Ultrasonic & Dimensional Inspection → Anti-Corrosion Treatment → Protective Packaging |
| Forging Ratio | ≥ 3.5 – ensures axial grain alignment, reduces internal porosity, and improves fatigue performance under repeated crankshaft loads |
| Applications | - Marine engine crank mechanism cylinders - Heavy-duty piston housings for marine diesel engines - Forged components for propulsion systems and large-scale marine machinery |
| Delivery Conditions | - Standard: Quenched and Tempered (Q+T) - Optional: Semi-finished, machined to bore tolerance, or as-forged based on assembly and sealing requirements |
| Testing & Inspection | - Chemical Composition: Optical Emission Spectrometry (OES) - Mechanical Properties: Tensile, Yield, Elongation, Hardness (HB/HRC) - Non-Destructive Testing: Ultrasonic (UT), Magnetic Particle (MT) - Dimensional Verification: Bore straightness, roundness, surface finish, and assembly fit |
Steel Forging Production Workflow:
Material verification → Cutting billets to precise dimensions → Controlled preheating to ensure uniform temperature throughout → Forging using open-die or closed-die techniques to achieve the required shape → Normalizing and heat treatment to refine grain structure and improve mechanical properties → Visual and dimensional inspection of forged blanks → Rough machining to approximate final geometry → Non-destructive testing (UT, MT) and dimensional checks → Quenching and tempering for enhanced hardness, strength, and toughness → Comprehensive final inspection of mechanical performance and surface quality → Finish machining to meet exact drawing tolerances → Final dimensional verification, marking, and protective coating → Packaging, warehousing, and shipment preparation.
Frequently Asked Questions (FAQs)
1. What range of weights do your forged components cover?
Our forged parts span from 100 kg up to 7,000 kg, accommodating both medium-size and heavy-duty industrial applications.
2. Are heat treatment and machining services available?
Absolutely. We operate in-house heat treatment facilities for precise control of mechanical properties. Components can be supplied in as-forged, rough-machined, or fully finished condition according to client requirements.
3. Which industries typically use your forgings?
Our forged components are widely employed in wind power, heavy construction machinery, port handling equipment, mining machinery, and power transmission systems, where durability and high load capacity are essential.
4. What is the usual production lead time?
Standard materials in stock: approximately 30 days from order confirmation.
Custom alloys or non-standard sizes: typically 40–45 days, depending on weight, dimensions, and machining complexity.
5. Where is your manufacturing facility located?
Our production facility is based in Changzhou, Jiangsu Province, about two hours from Shanghai, with easy access to Shanghai Port for international shipments.
Request a Quotation
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