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Inconel 625 Round Bar

Name: Inconel 625 Round Bar
Brand: Inconel

Inconel 625 Round Bar is manufactured from a nickel-chromium-molybdenum alloy that offers exceptional corrosion resistance, high tensile strength, and excellent fatigue performance. It maintains reliable mechanical properties in high-temperature, high-pressure, seawater, acidic, and chloride-rich environments.
With strong resistance to pitting, crevice corrosion, oxidation, and stress corrosion cracking, Inconel 625 Round Bar is widely used in aerospace components, chemical processing equipment, oil and gas systems, marine engineering, and power generation. Its superior durability and machinability make it a dependable choice for demanding structural and precision applications.

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Product Overview

Inconel 625 Round Bar for High-Performance Applications

Explore detailed information for this alloy product, including specifications, applications, supply options and quotation requirements.

Why buyers choose Inconel 625 Round Bar

Pipe Specifications

Inconel 625 Round Bar size range and supply information

Specifications, available sizes and delivery conditions can vary by production route and order requirements. Contact us for current availability.

Item	Typical Options	Buyer Notes	Typical Specification
Material Grade	Inconel 625 / UNS N06625 / W.Nr. 2.4856	Confirm the alloy designation, material standard and certification requirements.	Nickel-chromium-molybdenum-niobium alloy
Product Form	Hot-rolled bar, cold-drawn bar, forged bar or precision-ground bar	Select the manufacturing route according to size, tolerance and mechanical requirements.	Round bar supplied in standard or custom dimensions
Diameter	Small-diameter rod to large forged round bar	Provide the required diameter, unit and dimensional tolerance.	Custom diameters available according to drawings
Length	Random length, fixed length or cut-to-size pieces	Confirm length, cutting tolerance and end preparation requirements.	Straight lengths or precision-cut pieces
Applicable Standard	ASTM B446, ASME SB446, AMS 5666 or project specification	Confirm the applicable ASTM, ASME, AMS or customer standard.	ASTM B446 / ASME SB446 / AMS 5666
Delivery Condition	Annealed, solution annealed, hot worked or cold worked	The condition should match the required strength, machinability and service environment.	Solution-annealed condition commonly supplied
Surface Finish	Black, pickled, peeled, turned, polished or centerless ground	Specify the surface finish and tolerance required for machining or direct use.	Industrial, machined or precision-ground finish
Inspection & Certification	MTC, PMI, chemical analysis, tensile test, hardness test, UT and dimensional inspection	Confirm testing, traceability and third-party inspection requirements before quotation.	EN 10204 3.1 certificate and full heat traceability available

Standards

Common standards for Inconel 625 Round Bar

The final standard should follow the purchase order, engineering specification or project drawing.

Product Type	Common Standards	Typical Use	Inspection Notes
Inconel 625 Hot-Finished Round Bar	ASTM B446 / ASME SB446, AMS 5666	High-temperature shafts, fasteners, pressure components and heavy-duty industrial equipment	Verify diameter tolerance, tensile properties, hardness, PMI and heat traceability.
Inconel 625 Cold-Finished Round Bar	ASTM B446 / ASME SB446, AMS 5666	Precision-machined parts, valve stems, pump components and aerospace hardware	Inspect straightness, surface finish, dimensional accuracy, mechanical properties and MTCs.
Inconel 625 Forged Round Bar	ASTM B446 / ASME SB446, AMS 5666	Forged rings, pressure-vessel components, turbine parts and subsea equipment	Check forging reduction, grain flow, ultrasonic testing, PMI and internal soundness.
Inconel 625 Precision Round Bar	ASTM B446 / ASME SB446, AMS 5666, customer specifications	Instrumentation, precision shafts, machining blanks and corrosion-resistant assemblies	Confirm diameter, roundness, surface quality, hardness, chemical composition and batch traceability.
Inconel 625 Bar for Fasteners	ASTM B446 / ASME SB446, ASTM F468, customer specifications	Bolts, studs, nuts and other fasteners for marine, chemical and high-temperature service	Verify tensile and yield strength, threadability, PMI, hardness and material certificates.

Chemical Composition

Inconel 625 Round Bar composition reference

Chemical composition is reported by heat on the material test certificate. Use the table below as a material-selection reference.

Element	Symbol	Typical Requirement	Function
Nickel	Ni	58.0 min	Provides corrosion resistance, toughness, and high-temperature stability.
Chromium	Cr	20.0-23.0	Improves oxidation resistance and performance in oxidizing environments.
Molybdenum	Mo	8.0-10.0	Enhances resistance to pitting, crevice corrosion, and reducing acids.
Niobium + Tantalum	Nb + Ta	3.15-4.15	Provides solid-solution strengthening and improves bar strength.
Iron	Fe	5.0 max	Controlled balancing element in the nickel-based alloy.
Cobalt	Co	1.0 max	Controlled to maintain consistent mechanical properties.
Carbon	C	0.10 max	Limited to preserve ductility, machinability, and corrosion resistance.
Manganese	Mn	0.50 max	Acts as a deoxidizer during alloy production.
Silicon	Si	0.50 max	Controlled to maintain mechanical properties and surface quality.
Aluminum	Al	0.40 max	Supports oxidation resistance and alloy stability.
Titanium	Ti	0.40 max	Contributes to alloy stabilization and mechanical strength.
Phosphorus	P	0.015 max	Controlled impurity to preserve ductility and machinability.
Sulfur	S	0.015 max	Controlled impurity to reduce brittleness and cracking risk.

Mechanical Properties

Mechanical Properties of Inconel 625 Round Bar

Mechanical properties vary by standard, pipe size, production route and heat treatment. Use the specified standard and MTC as the final acceptance basis.

Condition / Product	Tensile Strength	Yield Strength 0.2%	Elongation	Notes
Annealed Inconel 625 round bar	827 MPa min reference	414 MPa min reference	30% min reference	Common selection reference for general machining and corrosion-resistant applications.
Solution annealed Inconel 625 round bar	By ASTM / ASME specification	By ASTM / ASME specification	By ASTM / ASME specification	Selected when corrosion resistance, weldability, and dimensional stability are priorities.
Cold-drawn Inconel 625 round bar	By diameter, temper, and purchase specification	By diameter, temper, and purchase specification	Lower than annealed condition	Cold working improves strength and hardness while reducing ductility.
Custom Inconel 625 round bar	By customer requirement and applicable standard	By customer requirement and applicable standard	By customer requirement and applicable standard	Confirm diameter tolerance, surface finish, heat treatment, testing, and material traceability.

Values shown are reference data for product selection. Purchase orders should define the exact standard, condition, inspection scope and certificate requirement.

Quotation Checklist

Information to confirm for your order

Share your requirements, including material, size, quantity, and specifications, for a fast quotation.

Material

Grade name, UNS number, equivalent grade or project material code.

Pipe Size

OD / NPS, wall thickness or schedule, length, tolerance and quantity.

Standard

ASTM, ASME, EN, DIN, drawing or customer specification.

Condition

Seamless, welded, annealed, solution annealed, pickled or polished.

Inspection

MTC EN10204 3.1, PMI, UT / ET, hydrotest and dimensional report.

Delivery

Destination, packing requirement, shipping method and delivery deadline.

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FAQ

Frequently asked questions about Inconel 625 Round Bar

FAQ content helps cover buyer questions and supports SEO for long-tail product searches.

Inconel 625 Round Bar is used for shafts, fasteners, valves, pump components, marine equipment, chemical processing equipment, aerospace parts and high-temperature applications.

Common standards include ASTM B446 and ASME SB446 for nickel alloy 625 rod and bar. Products can also be supplied according to customer drawings, ASTM, ASME, AMS or other project specifications.

Inconel 625 Round Bar is available in various diameters with hot-finished, cold-finished, forged, peeled, bright, polished or ground surfaces according to the required size and application.

Yes. Inconel 625 Round Bar can be machined using suitable carbide tools, controlled cutting speeds, rigid setups and proper cooling because of its high strength and work-hardening characteristics.

Yes. Material can be supplied with an EN10204 3.1 certificate, heat number traceability, chemical composition, mechanical test results, PMI and dimensional inspection reports when required.

Please provide the grade, round bar diameter, length, quantity, manufacturing condition, surface finish, standard, certificate requirements and destination.

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For faster feedback, include OD / NPS, wall thickness or schedule, length, quantity, standard, certificate requirement and destination. If you have a drawing or project specification, send it with the inquiry.

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