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AISI 4145 Alloy Steel
AISI 4145 Steel: Enhanced Hardenability for Oilfield Tools. Deep-hardening chromium-molybdenum steel for critical drilling applications.
AISI 4145 Alloy Steel
AISI 4145 is a high-hardenability variation of the 4145 series, often utilized in the energy sector. Its higher carbon content compared to 4140 allows for greater strength and hardness through larger sections, critical for downhole environments.
Chemical Composition | Percentage % |
|---|---|
Carbon | 0.43-0.48% |
Manganese | 0.75-1.00% |
Silicon | 0.15-0.35% |
Nickel | 0.25% max |
Chromium | 0.80-1.10% |
Molybdenum | 0.15-0.25% |
Phosphorous | 0.035% max |
Sulphur | 0.040% max |
Certified Quality Assurance
Integrity is built into our supply chain. All AISI 4145 materials are supplied in strict accordance with our ISO 9001 quality management standards. To ensure full material traceability, we offer BS EN 10204 3.1 mill certificates and cast/analysis reports upon request. Our technical team is ready to assist you in verifying that your order meets all necessary industry compliance benchmarks.
Industrial Applications & Versatility
AISI 4145 is a foundational material for the Oil and Gas industry, particularly in the production of down-hole drilling equipment.
Its exceptional fatigue resistance and toughness make it the premier choice for:
Drilling Tools: High-specification drill collars and stabilizers.
Heavy Machinery: Hydraulic press shafts and precision-engineered pump shafts.
Manufacturing Equipment: Durable paper mill rolls and high-torque gears.
Tooling: Heavy-duty tool holders designed for high-impact environments.
Precision Supply & Custom Specifications
We maintain a specialized stock of AISI 4145 round bars, available as standard lengths or
custom-cut blanks tailored to your production schedule.
For projects requiring exact dimensional accuracy, we supply precision ground bars finished to exceptionally tight tolerances.
Round Bar Diameters: Stocked from 80mm to 130mm.
Processing: In-house sawing and grinding services are available for single units or large-scale batches.
EN24 (Quenched & Tempered)
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EN-8 (1040) Carbon Steel
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C45 (1045) Carbon Steel
