Low Alloy Ultra-high Strength Steel-40CrNi2Si2MoVA
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Low Alloy Ultra-high Strength Steel
Grade：
40CrNi2Si2MoVA、AISI 300M
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Product Characteristics
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According to supply-demand agreements, this steel can be used to manufacture ultra-high-strength bolts requiring fatigue resistance, stress-corrosion resistance and bearing large loads, such as aircraft undercarriage bolts. Strength grade is not less than 1860 MPa. However, this steel is relatively sensitive to hydrogen embrittlement and can only adopt protective measures, such as oxidation or painting. Its corrosion resistance is limited, and it is not suitable for applications requiring high corrosion resistance.
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Industrial Application
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It can be used to manufacture ultra-high-strength bolts requiring fatigue resistance, stress-corrosion resistance and bearing large loads.
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Company Product Applications
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Various mandrels, heavy-duty drill rods, gears, transmission shafts, pressure vessel, oil-well drill gun forgings, aircraft undercarriage, structural parts, high-strength bolts, joints, wing fasteners, and suspension components.
Common Delivery Condition
Standard Heat Treatment Procedure
Main Specifications
Delivery Condition
Bars are annealed or high-temperature tempered, and supplied after turning.
Chemical Composition
Mechanical Properties
