AISI 4145 Steel Round Bar

AISI 4145 Steel Round Bar alloy Steel bar

Superior Strength & Durability for Demanding Applications

AISI 4145 is a chromium molybdenum alloy steel renowned for its exceptional combination of high tensile strength, impact resistance, and fatigue endurance. Ideal for critical components in automotive, aerospace, oil & gas, and heavy machinery sectors, our round bars ensure reliability in extreme conditions.

Customization Options
  • Diameter Range: 6mm–300mm
  • Lengths: Cut-to-order up to 12 meters
  • Surface Finish: Black, peeled, polished
  • Certifications: ISO 9001, SGS, Mill Test Certificat
 
Packaging & Delivery
  • Secure Packaging: Wrapped in waterproof paper, bundled with steel straps.
  • Global Shipping: FCL/LCL options via major ports.
  • Lead Time: 7-15 days depending on order volume.
AISI 4145 Steel Round Bar Key Advantages:
High Hardness & Wear Resistance: Optimized for parts subject to friction.
Excellent Heat Treatability: Maintains integrity after quenching and tempering.
Corrosion Resistance: Suitable for harsh environments with proper surface treatment.
Dimensional Precision: Manufactured to ASTM A29/A29M standards.
Applications
  • Automotive: Axles, gears, crankshafts
  • Aerospace: Landing gear components, structural parts
  • Oil & Gas: Drill collars, valves, connectors
  • Industrial Equipment: Bolts, shafts, heavy-duty fasteners

AISI 4145 Steel Round Bar Chemical Composition and mechanical properties

Chemical Composition

Element

Percentage (%)

Carbon (C)

0.43–0.48

Manganese (Mn)

0.70–0.90

Phosphorus (P)

≤0.035

Sulfur (S)

≤0.040

Silicon (Si)

0.15–0.35

Chromium (Cr)

0.80–1.10

Molybdenum (Mo)

0.15–0.25

Mechanical Properties
  • Tensile Strength:Up to 1030 MPa (Quenched & Tempered)
  • Yield Strength:≥860 MPa
  • Elongation:≥12%
  • Hardness:28–34 HRC (Typical Heat Treatment)
4145 steel round bar supplier

Why Choose Us?

 
  • Direct Manufacturer: Competitive pricing, no middlemen.
  • Quality Assurance: 100% non-destructive testing (NDT) available.
  • Fast Response: 24/7 customer support for inquiries and quotes.
Contact Us TodayFor technical data sheets, sample requests, or customized orders, reach out to our team:📧 sales@yourcompany.com🌐 www.hydc-rod.com