Inconel 713C Round Bars, Inconel 713 Bars, Inconel 713C Flat

Product Description

Inconel 713C (UNS N07713) is a precipitation-hardenable, nickel-chromium-based cast superalloy engineered specifically for exceptional structural integrity, creep rupture strength, and oxidation resistance at extreme temperatures up to 980°C (1800°F).

Because of its high aluminum and titanium content, it is primarily categorized as a cast alloy rather than a traditional wrought alloy, meaning specialized metallurgical processes (such as investment casting or hot working from vacuum-melted master alloys) are utilized to produce inventory like round bars, rods, and flats.

Technical Specifications & Chemical Composition

The performance of Inconel 713C stems from its precisely balanced chemistry, which forms a dense distribution of gamma prime $\gamma'$ ($\text{Ni}_3(\text{Al}, \text{Ti})$) strengthening precipitates along with grain-boundary carbides.

Key Standards & Designations

• UNS: N07713

• AMS: AMS 5391 (Casting specification), AMS 5377

Product Forms & Availability

1. Inconel 713C Round Bars / Rods

• Manufacturing: Produced from vacuum-induction melted (VIM) master batches, often supplied as cast bars or hot-finished/ground rods depending on the final application.

• Size Range: Commonly available in diameters from 6.0 mm up to 300 mm.

• Finishes: Black hot-rolled, bright centerless ground, or smooth turned.

• Primary Use: Used as feedstock for re-melting/investment casting or machined directly using rigid, specialized tungsten-cobalt or carbide tooling into high-stress rotating components.

2. Inconel 713C Flats & Blocks

• Applications: Frequently processed into structural brackets, specialized heavy-duty clamping hardware, high-temperature furnace jigs, and thermal barriers.

• Characteristics: Provides excellent cross-sectional dimensional stability under heavy thermal cycling and thermal fatigue conditions.

Mechanical & Physical Properties

• Density: $7.91 \text{ g/cm}^3$ ($0.286 \text{ lb/in}^3$)

• Melting Range: 1260°C – 1288°C (2300°F – 2350°F)

• High-Temperature Yield Strength: Retains notable load-bearing capacity even as temperatures cross 900°C, where standard stainless steels or lower-grade superalloys suffer rapid creep deformation.

Fabrication Notes

⚠️ Weldability & Machining Alert: Due to its high aluminum and titanium content, Inconel 713C is highly susceptible to strain-age cracking and is generally classified as non-weldable or extremely difficult to weld by conventional means (electron beam welding under specific conditions is an exception). Machining requires low cutting speeds, heavy feeds, rigid setups, and high-quality chlorinated or sulfurized cutting fluids to handle severe work-hardening behavior.