Forged shafts outperform cast or fully machined shafts with superior grain flow, fatigue life and long‑term reliability under high torque, impact and frequent start‑stop cycles.
Chalco manufactures custom and batch forged shafts in aluminum, titanium and steel, covering solid, hollow, flanged, stepped, spline, gear, rotor and eccentric designs with blank‑to‑finish CNC machining, heat treatment and Ultrasonic Testing (UT).
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- 5% bulk discount
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Specification Snapshot
| Capability | Value |
|---|---|
| Free forging | Up to 80, 000 kg |
| Finish machining | ±0.05 mm |
| NDT | Ultrasonic Testing (UT) |
| Standards | AMS / ASTM / GB / DIN |
| Certifications | SGS / TÜV / BV |
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Chalco Forged Shaft Product Type Overview
According to different equipment structures, operating conditions and connection forms, forged shafts have evolved into multiple structural designs. Chalco provides customization and mass production for a full range of shaft forgings, supporting end‑to‑end delivery from blanks to finishing for aerospace, wind power equipment, heavy machinery and rail transportation. Quick Quote
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Solid Forged Shaft
Use cases: industrial transmissions, heavy machinery
Features: high rigidity, shock resistance
Materials: 6061‑T6, 7075‑T73, 7050‑T7451, alloy steel
QA: UT, finish machining ±0.05 mm
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Hollow Forged Shaft
Use cases: wind‑turbine main shafts, large motors
Features: deep‑hole, thick‑wall
Materials: 6082‑T6, 7050‑T7451, alloy / stainless steel
QA: UT on thick sections
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Stepped Forged Shaft
Use cases: aviation hydraulics, compressors
Features: multi‑diameter, bearing / seal / flange seats
Materials: 6061‑T6, 2024‑T6, alloy steel
QA: keyway / spline machining
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Flanged Forged Shaft
Use cases: wind, marine, metallurgical equipment
Features: one‑piece flange, leak‑tight connection
Materials: 7075‑T73, 7050‑T7451, alloy steel
QA: dimensional control, UT
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Forged Crankshaft
Use cases: engines, diesel compressors
Features: multi‑journal / eccentric, controlled grain flow
Materials: alloy steel
QA: UT, documentation pack
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Rotor Forged Shaft
Use cases: motors, gas turbines, blowers
Features: symmetry, dynamic balance
Materials: 7075‑T73, titanium (TC4 / TC11), alloy steel
QA: UT, balancing report
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Spline Forged Shaft
Use cases: transmission output shafts, couplings
Features: involute teeth, fit classes
Materials: 7075‑T73, alloy steel
QA: hardness profile, UT
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Eccentric Forged Shaft
Use cases: compressors, reciprocating pumps
Features: offset axis, special‑shaped variant
Materials: alloy steel, 6061‑T6
QA: concentricity control
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Gear Forged Shaft
Use cases: differentials, heavy‑load gear trains
Features: integrated gear / bevel sections
Materials: alloy steel, 7050‑T7451
QA: tooth form accuracy, UT pre‑grind
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Custom Forged Shaft
Features: special ends; holes / keyways; multi‑section composites
Scope: blank‑to‑finish machining
QA: UT; mechanical tests; dimensional inspection
Compliance: AMS / ASTM / GB / DIN
If your project involves not only forged shafts but also other structural components, Chalco can provide complete forging support — including rings, blocks, plates and bars — for reliable one‑stop integration.
Visit our High‑End Forged Products to explore full‑range solutions.
Alloy Materials & Performance Advantages for Forged Shafts
Aluminum Forged Shafts
Lightweight, heat‑treatable and fatigue‑resistant—ideal for aerospace, rail transit and high‑end equipment. Chalco supplies aluminum forged shafts year‑round in T6/T651/T73/T7451 tempers with blank‑to‑finish machining and Ultrasonic Testing (UT). Quick Quote
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6061‑T6/T651 aluminum forging
General structural alloy; stable strength and weldability—aviation connecting shafts, automotive transmission shafts.
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7075‑T73/T651 aluminum forging
Ultra‑high strength—aircraft spindles, motion mechanism shafts, military structural parts.
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2024‑T6/T42 aluminum forging
Excellent fatigue resistance—engine connecting shafts, propeller shafts, intake shafts.
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7050‑T7451 aluminum forging
High strength and corrosion resistance—thick‑wall heavy‑load transmissions, compression spindles, nuclear equipment spindles.
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6082‑T6 aluminum forging
Good formability/processability—rail vehicle shafts, hollow motor shafts.
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2219‑T6/T31 aluminum forging
High‑temperature strength—aircraft engines, hydraulic transmission shafts.
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7475‑T7351 aluminum forging
High fracture toughness—rotating parts and spindles with high safety margins.
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2618‑T61 aluminum forging
Strong thermal creep resistance—hot‑end engine shafts.
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5052/5083‑O/H112 aluminum forging
Outstanding corrosion resistance—offshore, marine and chemical equipment shafts.
- High specific strength for system weight reduction
- Good processability/weldability for diverse end structures
- Heat‑treatment strengthening with adjustable properties
- High‑precision machining and UT delivery for high‑standard projects
Titanium Forged Shafts
Exceptional strength‑to‑weight and corrosion resistance for aerospace, marine and high‑end equipment. Chalco supports free and die forging of titanium shafts with stable heat treatment and finishing, plus UT and documentation. Quick Quote
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TC4 (Grade 5)
Common α+β alloy; high strength and balanced properties—aviation shafts, structural spindles.
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TA2 (Grade 2)
Commercially pure titanium; excellent corrosion resistance—seawater shafts, chemical transfer shafts.
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TC6
Medium‑strength; good weldability/processability—civil aircraft transmission/support shafts.
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TC11
High‑temperature strength—engine hot‑end power shafts and other critical parts.
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TC18 (Ti‑5Al‑5Mo‑5V‑1Cr‑1Fe)
β‑type high‑strength alloy—military high‑load structural shafts.
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TA10 (Ti‑6Al‑2Nb‑1Ta)
Excellent corrosion resistance/toughness—deep‑sea and reactive environments.
- Best strength‑to‑weight for weight‑critical designs
- Corrosion resistance for marine/acid/alkali/chemical media
- Good fatigue and toughness for critical structures
- Free/die forging, heat treatment and UT for aerospace & defense
Steel Forged Shafts
High strength/rigidity and cost efficiency for heavy‑duty equipment and power transmission. Chalco forges large ingots and die forgings with rough/finish machining, quench & temper and third‑party UT. Quick Quote
- High strength and toughness for heavy load/impact
- Mature processes and cost control for batch delivery
- Q&T, UT, dimension control, non‑standard ends
- Delivery to ASTM / GB / DIN / ASME requirements
Chalco Forged Shaft Manufacturing Capabilities & Precision Machining
We provide end‑to‑end forging and machining for solid, hollow, flanged, stepped and custom shafts—focused on strength, precision and reliability.
Forging: free forging ≤ 80, 000 kg; die forging; stepped/hollow integrated
Materials: aluminum; titanium; alloy steel; stainless steel
Heat treatment: T6 / T73 / T7451; quench & temper (Q&T); solution + aging
Machining: CNC turning; deep‑hole drilling; keyway; spline/gear cutting; balancing
Tolerances: finish to ±0.05 mm; run‑out & concentricity control
NDT: Ultrasonic Testing (UT); hardness & mechanical tests
Inspection: dimensional checks; CMM (on request); surface roughness control
Standards: AMS / ASTM / GB / DIN / ASME
Certifications: SGS / TÜV / BV
Max size: OD ≥ Ø800 mm; length project‑specific
Delivery: blank‑to‑finish machining; global sea/air freight; expedited lead times
Documentation: mill certs; UT reports; CoC; full traceability
Lead time / MOQ: project‑specific; expedited available
Chalco Forged Shaft Application Areas & Customer Examples
Forged shafts are core load‑bearing parts in high‑performance systems—engines, wind‑turbine main shafts, heavy transmissions and more.
Delivery: Custom aluminum / titanium / steel forged shafts with CNC, heat treatment and Ultrasonic Testing (UT). Quick Quote
Aerospace · Precision & High Reliability
Key needs: fatigue life; strength‑to‑weight; high‑temperature; vibration.
We deliver: 2024/7075 aluminum, TC4/TC11 titanium; T6/T73; grain‑flow control; CNC; UT.
| Application | Supporting Products | Material | Features |
| Engine intake shaft | Small‑Ø stepped / spiral‑groove shaft | 2024‑T6 Al | Anti‑fatigue; lightweight |
| Flight‑control link rod | Long hollow shaft | 7075‑T73 Al | High specific strength; fast response |
| Landing‑gear connector | Die‑forged flange shaft | TC4 Ti | Corrosion‑resistant; stable |
Supports AMS / HB/Z aerospace forging requirements; CNC + UT + documentation for flight‑critical parts.
Related: precision rings · structural blocks · stepped bars. Quick Quote
Wind & Nuclear · Large Hollow/Main‑Shaft Performance
Key needs: large diameter; high torque; lifespan; corrosion; (nuclear) temperature / low μ.
We deliver: free forging + deep‑hole; full‑process heat treatment; UT on thick sections.
| Application | Supporting Products | Material | Features |
| Wind‑turbine main shaft | Large‑Ø hollow shaft (≥ Ø800 mm) | 7050‑T7451 Al | High strength; fatigue life |
| Coupling connector shaft | Die‑forged flange + pre‑drilled | 6082‑T6 Al | Processable; easy assembly |
| Nuclear drive shaft | Thick‑wall solid shaft | TA2 Ti | Corrosion / radiation resistant |
Full‑process control of size, strength and life for energy‑sector shafts.
Related: heavy‑duty rings · solid blocks · pre‑drilled flanges · thick‑wall tubes. Quick Quote
Engineering Equipment · High‑Load / Impact
Key needs: impact; frequent operation; harsh environment; rigidity/toughness.
We deliver: high‑strength Al + medium‑carbon steels; Q&T; UT; sealed structures; CNC for stepped/multi‑section shafts.
| Application | Supporting Products | Material | Features |
| Hydraulic PTO shaft | Large‑Ø solid + custom keyway | 6061‑T651 Al | Stable; flexible machining |
| Track support step shaft | Stepped shaft + locating holes | 7075‑T73 Al | High strength; wear resistance |
| Impact swivel bearing shaft | Long solid shaft | TC6 Ti | Tough; sealing‑ready |
Special‑shape forging, step processing and large‑scale tempering for multi‑vibration / high‑impact work.
Related: stepped bars · flange blocks · bearing rings · forged plates. Quick Quote
Automotive · Lightweight & High‑Frequency Operation
Key needs: fatigue life; precise fit; lightweight; automated assembly.
We deliver: high‑fatigue Al alloys; controlled heat treatment; precision CNC finishing; efficient batch forging.
| Application | Supporting Products | Material | Features |
| Engine crankshaft | Multi‑section eccentric shaft | Alloy steel | High fatigue; high‑temp; durable |
| Gearbox coupling shaft | Stepped shaft + fine keyway | 2024‑T6 Al | Fast response; compact; precise |
| EV reduction shaft | Solid shaft + threaded end | Alloy steel / TC6 | High strength; high‑speed capable |
Standardized forging + machining for engines, transmissions and e‑drive systems.
Related: blocks · plates · bars · tubes. Quick Quote
Defense · Mission‑Critical Forging
Key needs: extreme environment; shock; strict tolerances; confidentiality.
We deliver: high‑strength Ti / high‑toughness Al; specialized heat treatment; multi‑stage forming; full traceability.
| Application | Supporting Products | Material | Features |
| Missile tail control axis | Hollow shaft + end taper | 7050‑T7451 Al | High strength; fast response |
| Tracked vehicle reduction shaft | Solid shaft + integrated flange | 7075‑T73 Al | Shock / vibration resistant |
| Shipborne radar rotation axis | Precision hollow flange shaft | TC18 Ti | Strength + corrosion resistance |
Military‑grade customization, secure processing and complete testing/certification.
Related: precision hollow shafts · thick forged plates · blocks · high‑integrity rings. Quick Quote
Rail Transit & Shipbuilding · Long‑Life Structural Shafts
Key needs: long service life; continuous load; humidity/corrosion; fatigue strength.
We deliver: corrosion‑resistant Al/Ti; optional anodizing/electroplating; optimized grain + heat treatment; CNC + full‑process UT.
| Application | Supporting Products | Material | Features |
| High‑speed train drive shaft | Stepped shaft + multi keyways | 7050‑T7451 Al | High strength; lightweight; smooth |
| Ship steering gear shaft | Long solid + end flange | 5083‑O Al | Seawater corrosion resistant |
| Propeller connecting shaft | Hollow shaft + locating end | TA10 Ti | Anti‑corrosion; salt‑spray resistant |
Whole‑section UT, probe‑type dimensional checks, multi‑section heat‑treat delivery for rail/marine projects.
Related: long hollow shafts · bearing rings · precision blocks · corrosion‑resistant plates. Quick Quote
Why Choose Chalco as Your Forged Shaft Partner
We specialize in custom forged shafts (aluminum / titanium / alloy steel / stainless) with blank‑to‑finish CNC, heat treatment and Ultrasonic Testing (UT)—built for high‑strength, high‑reliability applications as a trusted forged shafts supplier.
- Traceability: end‑to‑end records from raw material to final delivery
- Engineering: drawing review; material / heat‑treat recommendations; structure optimization
- Quality: UT; mechanical & dimensional tests; reports & full documentation
- Standards: AMS / ASTM / GB / DIN / ASME compliance; SGS / TÜV / BV support
- Delivery: on‑time shipments; batch consistency; global sea/air freight
- Speed: expedited samples & pilot runs; 24‑hour quote response
Need a quick assessment? See capabilities or send drawings for an engineering review.
Knowledge Center & FAQs About Purchasing Forged Shafts
Understanding the Forging Process
Forged shafts heat and shape billets via free or die forging to refine grain flow—yielding higher density, strength and fatigue life than shafts turned from rolled bars.
- Forming: free forging / die forging (solid, hollow, flanged, stepped)
- Heat treatment: T6 / T651 / T73 / T7451; Q&T; solution + aging
- Machining: CNC turning; deep‑hole; keyway; spline/gear; balancing
- NDT & tests: Ultrasonic Testing (UT); mechanical; hardness; dimensions
- Docs: mill certs; heat‑treat records; UT reports; CoC; full traceability
This workflow meets stringent needs in aerospace, automotive, energy and heavy equipment.
What's the difference vs. a conventionally machined shaft?
Forged shafts provide controlled grain flow, higher density and more stable properties—ideal for heavy‑load, high‑speed, high‑strength parts. Machined shafts from rolled bars fit non‑critical or medium/low‑load use.
Can you customize special structures from drawings?
Yes—custom stepped, hollow, flanged, eccentric, rotor and other shafts. We assist with material selection and heat‑treat path to hit performance and assembly targets.
Which materials and heat‑treat conditions are available?
Aluminum, titanium, alloy steel and stainless. Common tempers: T6 / T651 / T73 / T7451; processes: Q&T, solution + aging, annealing. We recommend the best route for your duty cycle and environment.
Do you provide testing and third‑party certification?
Yes—UT, mechanical, dimensional, surface checks with full reports. Third‑party: SGS / TÜV / BV available; delivery to AMS / ASTM / GB / DIN / ASME requirements.
Chalco can provide you the most comprehensive inventory of aluminum products and can also supply you customized products. Precise quotation will be provided within 24 hours.
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