Home / Products / Nickel Alloys / High Strength Inconel 718 Precipitation Hardenable Nickel Chromium Superalloy
Quality High Strength Inconel 718 Precipitation Hardenable Nickel Chromium Superalloy factory
Quality High Strength Inconel 718 Precipitation Hardenable Nickel Chromium Superalloy factory

High Strength Inconel 718 Precipitation Hardenable Nickel Chromium Superalloy

Basic Properties
Place of Origin: MADE IN CHAINA
Brand Name: Baosteel，TISCO
Certification: EN 10204 Type 3.1 / 3.2 available
Model Number: Incoloy 800 / Incoloy 800H / Incoloy 800HT / Incoloy 825 / Hastelloy C-276 / Hastelloy C-22 / Inconel 625 / Inconel 718
Trading Properties
Minimum Order Quantity: 100kg
Price: Negotiable (Request a Quote)
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Ability: 10000tons
Tags

High Strength Inconel 718

Inconel 718 Nickel Superalloy

Precipitation Hardenable Nickel Chromium Superalloy
Product Summary
Inconel 718 is a precipitation-hardenable nickel-chromium superalloy that delivers exceptional strength from -423°F (-253°C) up to 1300°F (700°C). Its unique combination of high tensile strength, fatigue resistance, creep rupture properties, and excellent weldability sets it apart from other high...

Product Details

Highlight:

High Strength Inconel 718

,

Inconel 718 Nickel Superalloy

,

Precipitation Hardenable Nickel Chromium Superalloy
Country Of Origin: MADE IN CHAINA
Brand: Baosteel，TISCO
Certifications: ISO/EN 10204 Type 3.1 / 3.2 Available
Grade: Incoloy 800 / Incoloy 800H / Incoloy 800HT / Incoloy 825 / Hastelloy C-276 / Hastelloy C-22 / Inconel 625 / Inconel 718
MOQ: 100kg
Price: Negotiable (Request A Quote)
Packaging: Wooden Case / Wooden Pallet / Steel Frame / Carton / Woven Bag
Delivery Time: 15-25days
Payment Terms: T/T，D/P，D/A，Western Union，PayPal
Supply Capacity: 10000tons
Product Description

Inconel 718 is a precipitation-hardenable nickel-chromium superalloy that delivers exceptional strength from -423°F (-253°C) up to 1300°F (700°C). Its unique combination of high tensile strength, fatigue resistance, creep rupture properties, and excellent weldability sets it apart from other high-strength superalloys.

Unlike many precipitation-hardened alloys that are prone to post-weld cracking, Inconel 718 exhibits outstanding weldability – even in complex, thin-walled fabrications. This makes it the #1 choice for aerospace gas turbine engines, liquid-fueled rockets, high-temperature fasteners, and critical oil & gas downhole components.

Chemical Composition

The unique age-hardenable characteristics come from a precise balance of niobium (columbium), titanium, and aluminum, which form strengthening precipitates (gamma double-prime and gamma prime) during heat treatment.

Element Content (%) Role
Nickel (Ni) 50.0 – 55.0 Base element – provides corrosion resistance & austenitic stability
Chromium (Cr) 17.0 – 21.0 Oxidation resistance & protection against sulfur compounds
Iron (Fe) Balance (Rem) Provides cost-effective stability & structural integrity
Niobium + Tantalum (Nb+Ta) 4.75 – 5.50 Primary strengthening element (gamma double-prime precipitate)
Molybdenum (Mo) 2.80 – 3.30 Pitting resistance & solid-solution strengthening
Titanium (Ti) 0.65 – 1.15 Secondary strengthener (gamma prime precipitate)
Aluminum (Al) 0.20 – 0.80 Secondary strengthener (gamma prime precipitate)
Cobalt (Co) 1.00 max Limited for nuclear compatibility
Carbon (C) 0.08 max Controlled for carbide stability
Manganese (Mn) 0.35 max Trace element
Silicon (Si) 0.35 max Trace element
Phosphorus (P) 0.015 max Controlled for ductility
Sulfur (S) 0.015 max Controlled for hot workability
Boron (B) 0.006 max Grain boundary strengthener
Copper (Cu) 0.30 max Trace element

Niobium is also referred to as Columbium (Cb) in older specifications. The combined Nb+Ta content is critical for precipitation hardening.

Typical Mechanical Properties

Inconel 718 is supplied in two main conditions: Solution Annealed (for fabrication) and Aged (precipitation-hardened for maximum strength). The aged condition delivers the alloy's signature high-temperature performance.

Product Form Condition Tensile Strength (KSI / MPa) Yield Strength 0.2% Offset (KSI / MPa) Elongation (%) Hardness
Sheet (AMS 5596) Solution Annealed 140 KSI (965 MPa) 80 KSI (552 MPa) 30 102 HRB max
Sheet (AMS 5596) Aged 180 KSI (1241 MPa) 150 KSI (1034 MPa) 12 ≥36 HRC
Sheet (AMS 5597) Solution Annealed 140 KSI (965 MPa) 75 KSI (517 MPa) 30 ≤25 HRC
Sheet (AMS 5597) Aged 180 KSI (1241 MPa) 150 KSI (1034 MPa) 15 ≥38 HRC
Bar / Rod (ASTM B637) Solution Annealed + Aged 185 KSI min (1276 MPa) 150 KSI min (1034 MPa) 12 min 36 HRC min

Key Performance Notes:

  • At 1200°F (649°C): Retains approximately 70% of room temperature yield strength.

  • Creep Rupture: Excellent resistance to creep deformation up to 1300°F (700°C).

  • Fatigue Strength: Superior to most other superalloys in the high-cycle fatigue regime.

  • Cryogenic Performance: Elongation can exceed 20% at -320°F (-196°C) with no ductile-to-brittle transition.

Available Products & Specifications

We supply Inconel 718 in all standard mill forms, cut to size, with full traceability to AMS, ASTM, and ASME standards. Custom dimensions and special heat treatments are available upon request.

Product Form Size Range Key Specifications
Round Bar / Rod Dia: 6mm – 300mm (0.25" – 12") ASTM B637, ASME SB637, AMS 5662, AMS 5663, AMS 5664, ISO 9723, DIN 17752
Wire Dia: 0.1mm – 12mm AMS 5832, ISO 9724, DIN 17753
Plate / Sheet / Strip Thk: 0.5mm – 100mm ASTM B670, ASTM B906, AMS 5596, AMS 5597, AMS 5598, AMS 5862, ISO 6208, DIN 17750
Seamless Pipe / Tube OD: 6mm – 219mm SAE AMS 5589, SAE AMS 5590, ASTM B983
Welded Pipe / Tube OD: up to 914mm SAE AMS 5590 (welded annealed), ASTM B983
Fittings (Flanges, Elbows, Tees) All schedules ASTM B366, ASME SB366
Forgings (Rings, Discs, Blocks) Custom sizes ASTM B637, ASME SB637, AMS 5663, ISO 9725, DIN 17754
Fastener Stock Custom ASTM B637 (Condition A or Aged), AMS 5662

Additional Specifications Met:

  • European: VdTÜV 499, EN 10095, BS 3072/3073/3076 NA18

  • Aerospace: Rolls-Royce MSRR, GE, Pratt & Whitney (contact for specific PWA or SPS numbers)

  • Oil & Gas: NACE MR-01-75 (sour gas service – certified on request)

Welding Products Available:

  • Filler Wire: ERNiCrFe-2 or ERNiCrMo-10 (per AWS A5.14)

  • Welding Electrode: ENiCrFe-2 or ENiCrMo-10 (per AWS A5.11)

Note: Inconel 718's exceptional weldability makes it suitable for welding to itself and to dissimilar alloys like stainless steels using appropriate filler metals.

Why Choose Our Inconel 718?

  1. Certified Quality: Every shipment includes full traceability and an EN 10204 Type 3.1 Mill Test Certificate (MTC) – available with AMS, ASTM, or ASME compliance.

  2. Extensive Inventory: Large stock of bars (round & flat), sheet, plate, and pipe in a range of sizes for immediate dispatch.

  3. Precision Processing: In-house cutting (shear, plasma, waterjet, cold saw) and machining (turning, milling) to your exact dimensions.

  4. Technical Expertise: Our metallurgists can assist with heat treatment specifications (solution annealed, aged, or double-aged) and material selection.

  5. Competitive Pricing: Direct mill access offers cost-effective solutions for both prototypes and production volumes.

  6. Global Logistics: Expert export packaging ensures safe, delivered-duty-paid (DDP) service worldwide.

Frequently Asked Questions (FAQ)

Q: What is the difference between Inconel 625 and Inconel 718?
A: Inconel 625 is solid-solution strengthened – high strength as-welded, excellent corrosion resistance, but lower high-temperature strength than 718. Inconel 718 is precipitation-hardened – significantly higher yield and creep strength up to 1300°F (700°C), but requires aging heat treatment. For aerospace rotating parts and high-temperature fasteners, choose 718. For seawater and chemical processing, choose 625.

Q: Can Inconel 718 be welded in the aged condition?
A: Typically, 718 is welded in the solution annealed condition (Condition A) and then aged after welding to restore full strength. However, it can also be welded in the aged condition with proper procedures (specifically for repair). Contact us for weld procedure development support.

Q: What heat treatment conditions are available?
A: We supply:

  • Solution Annealed (Condition A): Ready for fabrication.

  • Solution Annealed + Aged (Condition B): Fully precipitation-hardened, maximum strength.

  • Solution Annealed + Double Aged: Optimized for certain stress-rupture requirements (per AMS 5663/5664).

Q: Do you provide third-party inspection?
A: Yes. We can arrange SGS, TÜV, BV, or Lloyd's inspection at the buyer's cost, including witness testing and dimension checks.

Q: What is the maximum temperature for continuous service?
A: For load-bearing applications, continuous service to 1300°F (700°C). For intermittent service, excursions to 1400°F (760°C) are

Contact Us for a Competitive Quote

Need Inconel 718 bar, sheet, pipe, or custom forgings for high-temperature, high-stress applications?

Related Products
  • Quality Precision 301 304 316 430 Cold Rolled Stainless Steel Strip 2B BA No.4 Finish factory

    Precision 301 304 316 430 Cold Rolled Stainless Steel Strip 2B BA No.4 Finish
    Precision cold rolled stainless steel strip is a narrow, thin-gauge stainless steel product manufactured to significantly tighter thickness and width tolerances than standard cold-rolled sheet. Unlike standard sheet (typically 1000mm or 1219mm wide), precision strip is produced in narrow widths — usually less than 600mm — and thin gauges from 0.05mm up to 3.0mm. The key differentiator is the tolerance : the precision strip holds thickness variations to as low as ±0.005mm,
  • Quality High Precision 304 Stainless Steel Seamless Pipe Cold Rolled Corrosion Resistance factory

    High Precision 304 Stainless Steel Seamless Pipe Cold Rolled Corrosion Resistance
    304 Stainless Steel Seamless Pipe The 304 stainless steel seamless pipe is a globally recognized standard grade in the stainless steel family. With a chemical composition of 18% chromium and 8% nickel, it offers excellent corrosion resistance, high toughness, and outstanding formability. Manufactured using precision seamless cold-rolling technology, this pipe delivers a superior surface finish, tight dimensional tolerances, and consistent mechanical properties — making it the
  • Quality UNS N06022 Hastelloy C-22 Alloy Corrosion Resistant ASTM B622 factory

    UNS N06022 Hastelloy C-22 Alloy Corrosion Resistant ASTM B622
    UNS N06022 is a nickel-chromium-molybdenum alloy renowned for its exceptional resistance to both oxidizing and reducing corrosive media. With a higher chromium content than C-276, plus controlled additions of tungsten, this alloy offers superior resistance to pitting, crevice corrosion, and stress-corrosion cracking in aggressive environments. UNS N06022 provides outstanding performance in wet chlorine, hydrochloric acid, sulfuric acid, and mixed acid solutions where many
  • Quality Austenitic Corrosion Resistant Hastelloy C-22 Nickel Alloy For Harsh Chemical Processing factory

    Austenitic Corrosion Resistant Hastelloy C-22 Nickel Alloy For Harsh Chemical Processing
    Hastelloy C-22: Ultimate Corrosion-Resistant Nickel Alloy Hastelloy C-22 is a fully austenitic, advanced corrosion-resistant nickel-chromium-molybdenum-tungsten alloy. It offers outstanding resistance to both uniform corrosion in oxidizing media and localized attack (pitting, crevice corrosion) in reducing environments. Unlike standard alloys, C-22 provides exceptional resistance to stress corrosion cracking (SCC), intergranular attack, and weld heat-affected zone (HAZ)

Send An Inquiry