Inconel 718

Material overview

Inconel 718 belongs to the Nickel-Based Alloys section of the catalog. Precipitation-hardening nickel-iron-chromium alloy with very high yield strength to ~700 C. The technical review record highlights Exceptionally high yield, tensile and creep-rupture strength, good weldability with age-hardening response, and resists post-weld cracking. Listed applications include Gas-turbine discs, shafts and blades, high-strength fasteners, oilfield downhole tools, and cryogenic storage. The dataset currently includes 16 property records covering chemical composition, mechanical properties, and physical properties. Standards and product forms associated with the grade include B637, GB/T 15007, and GB/T 14992 and Bar / Rod, Forged Product, and Plate. Final material properties and delivery conditions must be verified against the applicable specification and inspection documents.

Key characteristics

• Exceptionally high yield, tensile and creep-rupture strength
• good weldability with age-hardening response
• resists post-weld cracking

Typical applications

• high-strength fasteners
• oilfield downhole tools
• cryogenic storage

Grade names and equivalents

Technical properties

Typical values are for reference only. Final chemistry, mechanical properties, heat treatment, dimensions, inspection, and documentation are confirmed against the applicable specification and MTC/COA before order acceptance.

Standards and specifications

Forms, applications, and capabilities