Incoloy 625 Bar Stock

​Product Overview

Incoloy 625 bar stock is a nickel-chromium-molybdenum superalloy renowned for its exceptional resistance to oxidation, pitting, and crevice corrosion in high-temperature and aggressive environments. Compliant with ​ASTM B446, ​ASME SB446, and ​NACE MR0175 standards, it is widely used in aerospace, marine engineering, chemical processing, and nuclear industries for components requiring high strength and durability under extreme stress.

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Product Specifications

​Material & Composition

• ​Nickel (Ni): 58% min
• ​Chromium (Cr): 20-23%
• ​Molybdenum (Mo): 8-10%
• ​Niobium (Nb): 3.15-4.15%
• ​Iron (Fe): ≤5%
• ​Standards: ASTM B446, ASME SB446, DIN 17742

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Dimensions & Forms

• ​Diameter Range: Φ5mm to Φ300mm (Custom Sizes Available)
• ​Surface Finish: Hot-Rolled, Cold-Drawn, Turned, or Polished (Ra≤0.8μm)
• ​Length: Cut-to-Size (1m-6m) or Random

​Mechanical Properties

• ​Tensile Strength: ≥930 MPa (Age-Hardened)
• ​Yield Strength: ≥517 MPa
• ​Elongation: ≥30%
• ​Hardness: ≤35 HRC

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Key Advantages

✅ ​Extreme Temperature Resistance: Performs in temperatures up to ​980°C (1800°F) with excellent creep and oxidation resistance.
✅ ​Corrosion Resistance: Resists chlorides, sulfuric acid, seawater, and sour gas environments (NACE MR0175 certified).
✅ ​Fabrication-Friendly: Excellent weldability (AWS A5.14 ERNiCrMo-3) and machinability with carbide tooling.
✅ ​Long-Term Reliability: Immune to chloride-induced stress corrosion cracking (SCC).

​Applications

• ​Aerospace: Jet engine exhaust systems, turbine blades, rocket thrust chambers
• ​Marine Engineering: Subsea umbilicals, seawater pumps, offshore platform components
• ​Chemical Processing: Reactor vessels, acid evaporators, flue gas desulfurization (FGD) systems
• ​Nuclear Power: Reactor core components, fuel reprocessing equipment
• ​Oil & Gas: Downhole tools, LNG heat exchangers, sour gas pipelines

​Certifications

• ISO 9001:2015, NACE MR0175/MR0103, PED 2014/68/EU
• PMI (Positive Material Identification) Verified
• Full Traceability with Mill Test Certificates (MTC)

​Packaging & Logistics

• ​Rust-Proof Packaging: VCI film + wooden crates with edge protectors.
• ​Shipping: FOB/CIF/DAP terms; expedited air freight for urgent orders.
• ​Lead Time: 20-30 days (standard), 45-60 days (custom sizes/heat treatment).

​Why Partner With Us?

🔹 ​Specialized Alloy Expertise: In-house vacuum induction melting (VIM) for ultra-low impurity control.
🔹 ​Technical Support: Free machining guides and welding procedure specifications (WPS).
🔹 ​Quality Assurance: 100% ultrasonic testing (UT), chemical analysis, and dimensional verification.
🔹 ​Global Clientele: Trusted by Rolls-Royce, Shell, and General Electric.