High-Temperature Nickel

Inconel 617 (UNS N06617) Alloy Supplier

Stable at temperatures exceeding 1100°C (2000°F)

Leading manufacturer of Inconel 617 plates, pipes, and bars with exceptional creep-rupture strength. Direct factory supply with 100% MTC certification.

Certification
ISO 9001
Standard
EN 2.4663
Global Shipping
50+ Countries
Inconel 617 Alloy Manufacturer
18+
Years Experience
10,000
Tons Inventory
35,000
m² Factory

Reliable Solutions for Extreme Heat & Oxidation

Gnee supplies premium Inconel 617 in all forms—Bars, Sheets, Tubes, Wire, and Forgings. Engineered for temperatures above 980°C (1800°F), our materials strictly comply with ASTM B166 / B168 / B167 standards to ensure maximum creep-rupture strength for your critical projects.

Custom-Ready

In-house factory for precision cutting and bespoke fabrication.

Quality Assured

Full support for Third-Party Inspection (TPI).

Global Logistics

Massive stock available for fast worldwide delivery.

What is Inconel 617 (UNS N06617 / 2.4663)?

Solid-Solution Strengthened Alloy

Nickel-chromium-cobalt-molybdenum alloy engineered for extreme environments beyond conventional materials.

Exceptional High-Temperature Stability

Maintains strength at temperatures exceeding 1100°C (2000°F) where most alloys fail.

Superior Creep-Rupture Strength

Carries heavy loads for thousands of hours without deformation or failure.

Oxidation & Carburization Resistance

High nickel and chromium content prevents degradation from oxygen and carbon-rich gases.

Inconel 617 Alloy

Parameters Of Inconel Alloy 617

Mechanical Properties

Tensile Strength
≥655 MPa (95 ksi)
Yield Strength
≥240 MPa (35 ksi)
Elongation
≥35%

Physical Properties

Density
8.36 g/cm³
Melting Range
1330-1380°C
Specific Heat
419 J/kg·°C

Chemical Composition

Ni (Nickel) 44.5 min
Cr (Chromium) 20.0 – 24.0
Co (Cobalt) 10.0 – 15.0
Mo (Molybdenum) 8.0 – 10.0
Al (Aluminum) 0.8 – 1.5
Fe (Iron) 3.0 max

Inconel 617 Product Forms We Manufacture

Using advanced rolling, forging, and drawing machines to ensure precision for global industries.

Inconel 617 Plates & Sheets

Plates & Sheets

Thickness 0.5mm to 50mm
Width Up to 2500mm
Condition Hot-rolled, Cold-rolled, Annealed, Descaled
Use Case: Combustion liners, heat exchangers
Inconel 617 Pipes & Tubes

Seamless & Welded Pipes/Tubes

Outer Diameter (OD) 6mm to 610mm
Wall Thickness 0.5mm to 30mm
Lengths Fixed 6m, 12m, Custom
Testing: 100% Eddy Current and Hydrostatic
Inconel 617 Round Bars & Forgings

Round Bars & Forgings

Diameter 8mm to 400mm
Finish Bright, Polished, Black Surface
Process Forged, Cold-drawn
Customization: Rings, flanges, discs available
Inconel 617 Strips & Wires

Strips & Wires

Strips: Precision thin strips for bellows and gaskets
Wires: Coils or straight lengths for high-temp springs

International Standards We Follow

Manufactured according to global quality standards for projects from USA to Europe and Asia.

Rod/Bar/Wire

  • ASTM B166
  • ASME SB166
  • DIN 17752

Plate/Sheet/Strip

  • ASTM B168
  • ASME SB168
  • DIN 17750

Pipe/Tube

  • ASTM B167, B516
  • ASME SB167, SB516
  • DIN 17751

Forgings

  • ASTM B564
  • ASME SB564
  • DIN 17754

Where is Inconel 617 Applied?

Used in the most demanding industries worldwide.

Aerospace

Gas turbine engines, ducting, and combustion cans. Handles high-speed air and heat of jet engines.

Power Generation

Ultra-Supercritical power plants steam tubing. Lasts longer under pressure.

Chemical Processing

Nitric acid production and thermal processing equipment with corrosive gases.

Nuclear Engineering

High-temperature gas-cooled reactors (HTGR) for core components.

Welding & Processing of Inconel 617

Welding

One advantage of Alloy 617 is its excellent weldability. It does not require pre-heating or post-weld heat treatment in many cases.

Recommended Welding Method

We recommend using Inconel Filler Metal 617 for TIG or MIG welding to maintain the same properties at the joint.

Key Considerations:
  • Ensure surfaces are clean and free of contaminants
  • Maintain proper heat control to avoid grain growth
  • Use appropriate filler metals to match alloy composition
  • Follow correct post-weld cleaning procedures

Machining

Because the alloy is designed to be strong at heat, it is “tough.” Use sharp carbide tools and constant feed speeds to prevent the metal from hardening while you cut it.

Key Machining Recommendations

When machining Inconel 617, use sharp carbide tools and constant feed speeds to prevent the metal from hardening while cutting.

Best Practices:
  • Use coolant for heat dissipation during machining
  • Maintain constant feed rates to avoid work hardening
  • Use positive rake angles for better chip formation
  • Keep tool sharp to avoid excessive friction
  • Consider using low-speed machining for complex parts

Why Choose Our Factory for Inconel 617?

Direct from source, not middlemen.

Strict Quality Control

Every order undergoes Ultrasonic Testing (UT), X-ray inspection, and Chemical Analysis. Full MTC (Material Test Certificate) with every shipment.

Custom Sizes

Cut plates to your exact dimensions or produce custom pipe sizes that are hard to find in the market.

Advanced Surface Finishing

Pickling, polishing, and sandblasting to ensure your material is ready for immediate use.

Fast Global Shipping

Experience shipping to over 50 countries. Packaging designed to protect from sea-salt corrosion during transport.

Gnee Alloy Factory Gnee Alloy Production Line

Custom Inconel 617 Solutions

One size does not fit all. We provide bespoke manufacturing services.

Custom Melting & Chemical Adjustment

VIM (Vacuum Induction Melting) and ESR (Electroslag Remelting) for high-purity ingots with specific grain size or tighter composition ranges.

Non-Standard Dimensions

Extra-thick plates (over 100mm) or very thin-walled tubes (0.3mm thickness) using 4-high cold rolling mills and heavy-duty forging presses.

Precision Machining & Fabrication

CNC Machining (turning, milling, drilling), Water-jet & Laser Cutting based on CAD files, and Welding Prep (beveling and edge preparation).

Specialized Testing & Certification

NDT (UT, RT, PT), Third-Party Inspection (SGS, BV, TUV, ABS), and export packaging with seaworthy wooden cases and anti-rust vacuum sealing.

Inconel 617 vs Inconel 625

Choose the right alloy for your application.

617

Inconel 617

Best for long-term exposure to heat above 800°C

Superior creep-rupture strength

Ideal for high-temperature applications

Excellent oxidation and carburization resistance

Choose for Heat Resistance

Best for sea-water corrosion and high strength at “moderate” temperatures

Excellent corrosion resistance in marine environments

Good weldability and formability

Widely used in aerospace and marine applications

Choose for Corrosion Resistance

FAQs

How do you guarantee the quality of Inconel 617?

Quality is our life. Every batch of Inconel 617 comes with a Material Test Certificate (MTC) according to EN 10204 3.1, listing exact chemical composition and mechanical test results.

What is your minimum order quantity (MOQ)?

For stock items (common plate sizes), no MOQ. For custom-melted orders or non-standard pipes, MOQ is around 500kg. We are open to discussing small trial orders for R&D projects.

Can you provide Inconel 617 welding wire with plates?

Yes. We offer a “One-Stop Solution” and can supply matching ERNiCrCoMo-1 (Filler Metal 617) welding wire so your fabrication team has everything needed for perfect welds.

Ready to Discuss Your Inconel 617 Project?

Direct factory supply with 100% MTC certification and custom manufacturing capabilities.

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Call: +86 15824687445