SIST EN 3010:2001

Overview

SIST EN 3010:2001 is a European standard under CEN that specifies the requirements for aerospace-grade hexagon head bolts with a relieved shank and long thread. These bolts are manufactured from the heat-resistant nickel base alloy NI-P101HT, also known as Waspaloy. The standard classifies these bolts according to their mechanical performance, notably a tensile strength of 1210 MPa at ambient temperature and reliable operation at high temperatures up to 730 °C. This robust specification ensures that the bolts meet the demanding safety and durability needs of aerospace applications.

Key Topics

• Bolt Design: Hexagon head bolts featuring a relieved shank and long thread, which help reduce stress concentrations and enable secure fastening in aerospace assemblies.
• Material Composition: Made from NI-P101HT (Waspaloy), a high-performance nickel base alloy known for excellent heat resistance and strength at elevated temperatures.
• Mechanical Properties: Classified to withstand tensile loads of 1210 MPa at room temperature, maintaining integrity up to 730 °C, crucial for high-temperature aerospace environments.
• Temperature Resilience: Bolts designed to sustain mechanical stability and corrosion resistance in extreme thermal conditions commonly encountered in aviation and space technology.
• Standard Compliance: Aligns with aerospace quality assurance requirements ensuring reliability and safety in structural applications.

Applications

SIST EN 3010:2001 bolts are primarily used in aerospace engineering where components are subject to high mechanical loads and extreme temperatures. Common applications include:

• Aircraft Engine Assemblies: Securing high-temperature engine parts that demand exceptional material performance.
• Airframe Structures: Fastening components where thermal stresses and vibration resistance are critical.
• Spacecraft Components: Ensuring structural integrity in launch vehicles and space station modules exposed to variable and extreme thermal environments.
• High-Temperature Industrial Equipment: Situations requiring corrosion-resistant fasteners operating under sustained heat exposure.

Using EN 3010 compliant bolts helps maintain safety standards and prolongs service life of critical aerospace hardware.

Related Standards

For comprehensive aerospace fastening solutions, SIST EN 3010:2001 is often used alongside other related standards:

• EN 3100 Series: Guidelines on aerospace fasteners in various alloy compositions.
• ISO 898-1: Mechanical properties of fasteners made from carbon steel and alloy steel.
• ASTM B637: Specifications for heat-resistant wrought nickel and cobalt base alloy bars, billets, and forgings.
• AS9100: Aerospace quality management system standard emphasizing product safety and regulatory compliance.

Familiarity with these standards ensures full compliance and integration of EN 3010 bolts within broader aerospace manufacturing and maintenance frameworks.

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