Product details
Made of premium 4340 (SNCM439) alloy steel, designed for mechanical spindles and petroleum equipment impact-resistant rings.
Produced via professional free forging, ensuring a dense, uniform internal structure with optimal grain flow.
Delivers exceptional strength and toughness to withstand extreme impact loads in oilfield and heavy machinery applications.
The quenched and tempered process provides balanced hardness, impact resistance, and fatigue performance.
High-precision free forging maintains tight dimensional tolerances for seamless assembly and reliable fit.
Excellent hardenability ensures uniform material properties across the entire ring cross-section.
Fine grain structure significantly improves durability under cyclic impact and heavy-duty operations.
Superior wear and corrosion resistance withstand harsh, high-friction conditions in petroleum equipment.
High tensile strength meets the rigorous demands of mechanical spindles and critical oilfield components.
Strict raw material traceability ensures compliance with international petroleum equipment quality standards.
Rigorously tested for hardness, tensile strength, and impact toughness before delivery.
Resistant to deformation under high torque and heavy loads, maintaining stable performance over extended use.
Corrosion-resistant surface treatment options available for enhanced durability in corrosive oilfield environments.
Custom specifications (size, tolerance, heat treatment) available to match diverse mechanical and petroleum equipment needs.
Strict quality control throughout free forging and machining processes ensures consistent quality for every piece.
Low maintenance requirements reduce downtime and operational costs for oilfield and heavy machinery.
Excellent thermal stability maintains performance even under high operating temperatures in drilling operations.





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Step 1
Payment and order readiness
Minimum order: 10 Units
Payment terms, specifications, and order details are confirmed before preparation begins.
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Step 2
Preparation
15 days
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Step 3
Packaging and dispatch
Ocean + Express via FLY Logistics · Approx. shipping fee: $ 20.64 for 10 pieces · Transit time: Est. 16-23 days
Final packing, freight, and delivery dates are confirmed before dispatch.
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