Inconel 617 Round Bar
➡️ Alloy 617 | UNS N06617 | EN 2.4663 | NiCr23Co12Mo | ASTM B166
➡️ ASTM, EN, JIS & International Standards
➡️ Supply Conditions
➡️ Multiple Diameters & Supply Lengths
➡️ Global Export & International Delivery
Country of Origin:
Europe, Japan, USA
Material Type:
Nickel Alloy
UNS Number:
N06617
Wr. No.:
2.4663
MTC Available:
EN 10204 3.1
Product Description for Inconel 617 Round Bar
Inconel 617 Round Bar is made from a solid-solution strengthened nickel-chromium-cobalt-molybdenum alloy, UNS N06617, known in Germany as 2.4663 (NiCr23Co12Mo). Rod and bar are supplied to ASTM B166 and ASME SB166. Inconel is a trademark of Special Metals, and the generic name is Alloy 617.
The alloy contains about 20–24% chromium, 10–15% cobalt, 8–10% molybdenum and a small aluminium addition. Cobalt and molybdenum give high strength and creep resistance at very high temperature, while chromium and aluminium give excellent resistance to oxidation and carburisation up to about 1100°C.
Alloy 617 keeps its strength and stability over long exposure at high temperature. It has good weldability and can be formed and machined with normal nickel alloy practice.
Bars are supplied solution annealed, hot finished or cold finished, and can be turned or ground. The alloy is non-magnetic.
Common applications include gas turbine combustion cans, ducting and transition liners, petrochemical and heat-treatment furnace parts, catalyst grid supports, nitric acid plant parts and components for advanced power plant and high-temperature gas reactors. It is approved in the ASME code for high-temperature service. What sets Alloy 617 apart is the balance of cobalt and molybdenum. Together they keep the metal strong well above the range where Alloy 625 and Alloy 600 start to creep, while the aluminium adds to the chromium oxide scale in oxidising and carburising gases. This makes Alloy 617 one of the few wrought alloys that can be welded, formed and still carry load near 1000°C. It is stocked in fewer sizes than Alloy 625, so plan lead times.
Common Applications of Inconel 617 Round Bar
➡️ Machined shafts, spindles, valve stems, pump sleeves and pins for food, beverage, dairy and pharmaceutical equipment, where the passive chromium oxide film resists both product acids and caustic clean-in-place chemicals.
➡️ Fasteners, studs, bolts, threaded rod and anchor components produced from bar stock, chosen for corrosion resistance combined with the ductility needed for cold heading and thread rolling.
➡️ Chemical, water treatment and general process plant parts such as agitator shafts, flange blanks, nozzles and support components handling water, steam and mildly corrosive media free of significant chlorides.
➡️ Architectural and structural hardware including handrail stanchions, balustrade fittings, tension rods and bollards, where a bright ground or polished bar finish provides both appearance and low maintenance.
International Equivalent Grade for Inconel 617 Round Bar
Standard
Country / Region
Grade
UNS
USA
UNS N06617
ASTM B166 / ASME SB166
USA
Alloy 617 / Haynes 617
ASME SB166
USA
UNS N06617
DIN 17744 / DIN 17752
Europe
2.4663 (NiCr23Co12Mo)
BS
United Kingdom
BS NA50
JIS
Japan
JIS NCF 617
GB/T
China
GH4169
KS
South Korea
KS D 3757
ISO
International
ISO NiCr22Co12Mo9
Technical Specification for Inconel 617 Round Bar
Specification
Value
Unit
Material
Nickel alloy
-
Grade
617 / UNS N06617 / 2.4663
-
Standard
ASTM B166 / ASME SB166
-
Product Form
Round bar / rod
-
Diameter (supply range)
6–250
mm
Length (random)
1–6
m
Manufacturing Process
Hot rolled, forged, extruded or cold drawn
-
Surface Finish
Descaled, pickled, peeled, turned, ground or bright
-
Heat Treatment / Delivery Condition
Solution annealed
-
Tolerance Standard
ASTM B166 tolerance tables
-
Density
8.36
g/cm³
Melting Range
1332–1380
°C
Thermal Conductivity at 20°C
13.6
W/m·K
Coefficient of Thermal Expansion 20–100°C
11.6
µm/m·K
Specific Heat at 20°C
419
J/kg·K
Electrical Resistivity at 20°C
1.22
µΩ·m
Modulus of Elasticity at 20°C
211
GPa
Magnetic Properties
Non-magnetic
-
Testing / Inspection
Chemical analysis, tensile, hardness, dimensional, UT and PMI on request
-
Certification
EN 10204 3.1 mill test certificate (3.2 on request)
-
Technical Specifications
Get the key technical specifications for Inconel 617 Round Bar
Inconel 617 Round Bar is supplied to ASTM B166, which covers Ni-Cr-Fe and related alloy rod and bar, with ASME SB166 for pressure equipment. The German material 2.4663 is covered by DIN 17744 for chemistry and DIN 17752 for bars.
Bars are solution annealed, usually at about 1150–1200°C followed by rapid cooling. This gives a coarse enough grain size for good creep strength.
The physical data for Alloy 617 are reference values for thermal and stress analysis. Tolerances follow ASTM B166.
Standard testing includes chemical analysis, tensile test and dimensional check. UT, grain size, PMI and third-party inspection can be ordered.
For high-temperature design, the ASME Boiler and Pressure Vessel Code gives allowable stresses for Alloy 617 at elevated temperature, and the alloy has also been added to ASME Section III, Division 5 for high-temperature nuclear reactors. For these uses, buyers often order tighter chemistry, grain size limits and extra testing beyond ASTM B166. A modified version, commonly called 617B or CCA (2.4673), has narrower limits and is used in advanced steam power plants. If a project names this version, order it by its own designation and specification, because standard 617 certificates will not show the tighter limits.
Chemical Composition for Inconel 617 Round Bar
Element
Symbol
Min
Max
Unit
Nickel
Ni
44.5
-
%
Chromium
Cr
20.0
24.0
%
Cobalt
Co
10.0
15.0
%
Molybdenum
Mo
8.0
10.0
%
Aluminium
Al
0.8
1.5
%
Carbon
C
0.05
0.15
%
Iron
Fe
-
3.0
%
Manganese
Mn
-
1.0
%
Silicon
Si
-
1.0
%
Sulfur
S
-
0.015
%
Titanium
Ti
-
0.6
%
Copper
Cu
-
0.5
%
Boron
B
-
0.006
%
Chemical Composition
View the chemical composition and applicable material limits for Inconel 617 Round Bar
The table shows the ASTM B166 limits for UNS N06617.
Chromium at 20–24% and aluminium at 0.8–1.5% form protective oxide scales, giving excellent oxidation and carburisation resistance at very high temperature.
Cobalt at 10–15% and molybdenum at 8–10% strengthen the nickel matrix by solid solution, giving high creep and rupture strength.
Carbon at 0.05–0.15% forms carbides that support creep strength. Small amounts of titanium and boron are also present. Iron and other residuals are limited. The high molybdenum content of 8–10% is also what gives Alloy 617 some resistance in reducing and mildly corrosive gases, but it is not a wet corrosion alloy in the way Alloy 625 or C-276 are. Cobalt at 10–15% raises the strength of the nickel matrix at high temperature and helps keep carbides fine and stable. Aluminium at 0.8–1.5% is high for a solid-solution alloy. It forms an aluminium-rich layer under the chromium oxide scale, which improves resistance to oxidation and carburisation in cycling service. Boron at 0.006% maximum strengthens grain boundaries and improves rupture life. Iron is limited to 3.0% so it does not weaken the alloy at high temperature.
Mechanical Properties for Inconel 617 Round Bar
Mechanical Property
Value
Unit
Tensile Strength (ASTM B166, annealed)
≥ 655
MPa
Yield Strength 0.2% (ASTM B166, annealed)
≥ 240
MPa
Elongation (ASTM B166, annealed)
≥ 35
%
Hardness (annealed)
170–200
HB
Mechanical Properties
Check the key mechanical properties and performance requirements of Inconel 617 Round Bar
The tensile, yield and elongation values are ASTM B166 minimum requirements for annealed UNS N06617 bar. Hardness is a reference value.
The main advantage of Alloy 617 is its high creep and rupture strength above about 800°C, which should be taken from producer data and ASME code tables.
Check that the Alloy 617 certificate reports the annealing temperature and grain size. ASTM B166 requires annealed Alloy 617 bar to reach tensile strength of at least 655 MPa, yield strength of at least 240 MPa and elongation of at least 35%. These room-temperature values are modest compared with age-hardened alloys, but Alloy 617 keeps a much larger share of its strength as temperature rises. Above about 800°C, its creep and rupture strength are among the best of the weldable wrought nickel alloys. Designers should take allowable stresses from the ASME code or producer creep data at the actual service temperature and design life. After long exposure at about 650–760°C, some loss of room-temperature ductility is normal, and this should be considered for parts that are cooled and loaded again during shutdowns.
Dimension / Sizes for Inconel 617 Round Bar
Dimension / Size
Value
Unit
Available Diameter Range (supply capability)
6–300
mm
Standard Length (random)
1–6
m
Custom / Cut-to-Length
Available on request
-
Diameter Tolerance
Per ASTM B166 tolerance tables
-
Length Tolerance
Per ordered standard or as agreed (commonly +50 / -0 mm for cut lengths)
-
Straightness Tolerance
Per ASTM B166 or as agreed
-
End Condition
Saw cut square, chamfered or as ordered
-
Surface Finish
Hot finished, descaled, pickled, peeled, turned, centreless ground or cold drawn bright
-
Dimensions & Sizes
Explore available diameters, lengths, and dimensional requirements for Inconel 617 Round Bar
Pricing for Inconel 617 Round Bar
Round Bar Prices are generally quoted per kilograms or meters tonnes and can fluctuate with the global raw material and market prices. The final price will depend on a variety of factors, including the grade size, diameter, length, surface finish, the quantity and whether the bars are cut to length or in standard lengths.
For smaller quantities, we can also quote per metre or per piece basis once the required dimensions have been confirmed. Container-loads or orders that are larger in size are typically priced per tonne, based upon the specifications required and the supply conditions.
Please provide your desired dimensions, grades, length number, and end for a current quote including the lead time applicable and details for certification.
Pricing
Get current Inconel 617 Round Bar pricing based on size, quantity, grade, finish, and delivery requirements.
Why Choose Us
Euro Steel Bars is an international distributor, stockist and exporter of stainless round steel bars that cover carbon, stainless alloy, special grades. We stock a variety of sizes and grades. We guarantee every order with mill test certificates as well as full quality-assurance documentation. Our name speaks to our roots: European-sourced materials that is backed by the certificates and rigor that buyers from Asia as well as the Gulf and Africa are looking for.
Each bar we deliver is accompanied by EN 10204 3.1 mill test certificates as well as complete documentation of quality, so what you receive corresponds to what’s written in the documents. We carry a selection of sizes and grades ready for transport, and cut length upon the request of customers, which results in quicker lead times, whether you’re ordering just a one-off spec or a complete project tonnage.
We operate an actual wholesale business that is that is supported with an internationally-operated supply chain therefore we are able to serve fabricators sourcing one grade the same way in the same way as an EPC contractor who is placing a large order. Our clients include manufacturers, fabricators EPC construction companies, engineers oil and gas projects as well as construction companies. we design our inventory as well as documentation to show what buyers need to bring projects forward.
Our customers trust us across Qatar, Oman, Bahrain, Kuwait, Jordan, Malaysia, Singapore, Thailand, Taiwan, Turkey, Italy and South Africa. If you’re looking to source an Gulf energy project, or a construction project within Southeast Asia, you get the same quality of certified material, the exact documentation, and the exact delivery procedure.
Frequently Asked Questions
Should I choose Alloy 617 or Alloy 625?
What maximum temperature can Alloy 617 be used at?
Why is Alloy 617 used in high-temperature gas reactors?
Can Alloy 617 be used for wet corrosion service?
How is Alloy 617 welded and machined?
What are the limits of Alloy 617?
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