Transmission Flange Forgings - High-Strength Power Transmission Components
Engineered for Demanding Drivetrain Applications
Our transmission flange forgings are precision-manufactured using SAE8620H alloy steel through closed-die forging process, ensuring optimal grain structure for maximum durability in heavy-load applications.
Key Advantages of Our Forged Valve Bodies
① Material Superiority
High-Strength Alloy Steel:
SAE 8620H / 4140 forged blanks
Optional quench & temper (HRC 28-42)
Enhanced toughness for high-pressure applications
Corrosion-Resistant Options:
Stainless steel (A182 F304/F316)
Duplex/Super Duplex (F51/F53) for sour service
② Precision Manufacturing
Tight Tolerances:
±0.25mm machining accuracy (superior to cast alternatives)
5-axis CNC machining for complex geometries
Surface Finishes:
Machined (Ra 3.2μm)
Ground (Ra 0.8μm)
As-forged (for secondary welding/processing)
③ Custom Solutions
Size Range: 50mm – 800mm diameters
Bolt Patterns: Custom drilling to match non-standard flanges
Special Features:
Fire-safe API 607 design
Cryogenic treatment for LNG applications
④ Performance Benefits
✔ 30% higher fatigue life vs. cast flanges
✔ Excellent low-temperature impact resistance (-46°C / -50°F)
✔ Leak-proof performance (ANSI B16.34 Class VI)
✔ Long-term durability in high-cycle applications
⑤ Quality Assurance
100% Ultrasonic Testing (UT) for internal defects
Full Material Traceability (MTR 3.1/3.2)
ISO 9001:2015 Certified manufacturing
Third-party inspection (DNV, ABS, Lloyds available)
Industrial Applications
Agricultural Equipment: Tractor PTO systems
Construction Machinery: Excavator final drives
Mining Equipment: Crusher drive assemblies
Wind Energy: Gearbox flange connections
Marine Propulsion: Shaft coupling systems
Technical Specifications
| Parameter | Specification |
|---|---|
| Material Grades | SAE8620H, 4140, 4340, Custom |
| Forging Process | Closed-die forging |
| Heat Treatment | Normalizing, Q&T, Case Hardening |
| Standard Tolerance | ±0.25mm |
| Testing Methods | UT, MPI, Hardness Testing |
| Surface Finish | 3.2-12.5μm Ra |
Why Our Flange Forgings?
✅ Longer Service Life: Dense grain structure prevents premature failure
✅ Cost Efficiency: Reduced machining requirements save 15-20% production costs
✅ Fast Delivery: 20-30 days lead time for standard sizes
✅ Engineering Support: DFM analysis & CAD file optimization
Request Your Custom Quote
Contact our forging experts for:
Technical drawings review
Material certification
Volume pricing (MOQ 100 pieces)
