Inconel Round Bars Supplier & Exporter in India

Q: What ASTM standards cover Inconel round bars?

Inconel 600 and 601: ASTM B166. Inconel 625: ASTM B446. Inconel 718: ASTM B637. Incoloy 800: ASTM B408. Incoloy 825: ASTM B425. AMS 5662/5663 for aerospace-grade 718.

Q: What is the difference between Inconel 625 and Inconel 718 round bars?

Inconel 625 is a solid-solution-strengthened alloy excelling in aqueous corrosion resistance. Inconel 718 is precipitation-hardened with higher tensile strength (965 MPa min.) — the standard choice for aerospace rotating parts.

Q: Can you supply material with EN 10204 3.2 test certificates?

Yes. EN 10204 3.2 certificates from Bureau Veritas, SGS, Intertek, and TÜV. NACE MR0175 / ISO 15156 compliance documentation also available on request.

Q: What surface finishes are available for Inconel round bars?

Hot Rolled, Cold Drawn, Bright Annealed, Centreless Ground, Peeled and Turned, and Black Forged. Cold drawn and centreless ground offer the tightest tolerances.

Q: What is the minimum order quantity for Inconel round bars?

For commonly stocked grades and standard sizes, ex-stock supply is available for immediate dispatch. For non-standard grades or custom dimensions, a minimum order may apply.

Q: Can Inconel round bars be supplied in custom cut lengths?

Yes. Standard lengths are 0.5–6.0 m. Custom cut lengths, fixed lengths, and random lengths are available. All cut pieces include material identification markings and heat number traceability.

Inconel Bars, Inconel Rods & Wires, Inconel Rods, Alloy Round Bar and Inconel Round Bar Suppliers and Inconel Round Bar Manufacturer in India

Inconel round bars are designed for use in severe thermal and high-pressure conditions. They offer a high level of mechanical strength, making them highly effective in resisting oxidation, pitting, and chloride-induced stress-corrosion cracking, even under the most volatile conditions. They are the material of choice for high-value components including turbine shafts, high-strength fasteners, and specialised valves in the aerospace, marine, and oil and gas industries.

To meet diverse engineering requirements, Solitaire Overseas maintains a comprehensive inventory of grades — including Inconel 600, 625, 718, and 825. Available in a wide range of diameters and finishes, these bars are engineered to provide long-term durability where standard materials fail. Whether for chemical processing or power generation, our Inconel bar stock delivers the specialised reliability required for modern industrial infrastructure.

As a premier Inconel round bar supplier and exporter, Solitaire Overseas stocks a broad range of nickel alloy products in a variety of surface finishes and both metric and imperial sizes, all produced to high-quality international standards including ASTM B166 and DIN 2.4816. In addition to standard round bars, our product range includes special profiles — hexagon, rectangular, square, and forged bars. Every Inconel rod is machined to tight dimensional tolerances per DIN/ISO grade standards for use in the most demanding industrial applications worldwide.

Combining global manufacturing quality with competitive prices from India, Solitaire Overseas delivers effective, corrosion-resistant solutions to buyers worldwide. Hot-rolled and cold-drawn products are available in standard and custom sizes with full material traceability documentation and responsive technical support.

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Inconel Round Bar by Grades Inconel Round Bar Specifications Chemical Composition Mechanical Properties Equivalent Grades Tolerances — Cold Drawn Bar Bright Bar Surface Finish Inconel Hex Bar Sizes Weight Chart HSN Code Flat Bar Sizes Types of Inconel Round Bars Applications Machining & Fabrication Price List Related Products FAQs

Inconel Round Bar by Grades

Each grade has a dedicated product page with full specifications, chemical composition, mechanical properties, dimension charts and application guides. Select a grade below:

Inconel 600 Round Bar

Inconel 625 Round Bar

Inconel 601 Round Bar

Inconel 718 Round Bar

Incoloy 800 Round Bar

Incoloy 825 Round Bar

Inconel Round Bar Specifications

The following table provides technical specifications, including the standard size range of Inconel round bars and other available shapes from our Inconel bar stock.

Specification	Details
Round Bar Sizes	Dia.: 3–600 mm, Length: 0.5–6.0 m, Custom sizes available
Hex Bar Sizes	Dia.: 3–180 mm, Length: 0.5–6.0 m, Cut to size available
Flat Bar Sizes	Thickness: 0.5–200 mm, Width: 1.5–250 mm, Length: 0.5–6.0 m
Square Bar Sizes	Side Width: 2–200 mm, Length: 0.5–6.0 m, Cut to length available
Supply Condition	Hardened, Turned & Rough, Annealed
Technique	Hot Rolled, Forged, Cold Rolled, Polished
Standards	ASME SB446, ASTM B446, ASTM B166, ASTM B637, AMS 5540 (625), AMS 5662/5663 (718), UNS, API, EN, DIN, ASME, AISI, GB
Testing	Chemical Test, Flaring Test, Mechanical Test, PMI Test, UT (Ultrasonic), Dye Penetrant
Finish	Polished, Black, Bright, Pickled
Properties	Melting Point: 1,260–1,450 °C (grade-dependent), Specific Heat: 0.43 J/g·°C, Density: 8.1–8.4 g/cm³
Shape Options	Flat, Round, Rectangular, Hex, Square
Certificates	EN 10204 3.1 (standard), EN 10204 3.2 (BV / SGS / Intertek / TÜV on request), NACE MR0175 / ISO 15156 on request

Inconel Round Bar Chemical Composition

The chemical composition defines the corrosion and oxidation resistance of each Inconel grade. High nickel (Ni) and chromium (Cr) content are the primary performance drivers.

Grade	Co	Mo	Fe	Cr	Nb	Ni	Ti	Mn	Al	Cu	Si	S	C	B	P
600	—	—	6.0–10.0	14.0–17.0	—	72.0 min	—	1.0 max	—	0.5 max	0.5 max	0.015 max	0.15 max	—	—
617	10.0–15.0	8.0–10.0	3.0 max	20.0–24.0	—	44.2–56.0	0.6 max	0.5 max	0.8–1.5	0.5 max	0.5 max	0.015 max	0.15 max	0.006 max	0.015 max
625	1.0 max	8.0–10.0	5.0 max	20.0–23.0	3.15–4.15	58.0 min	0.4 max	0.5 max	0.4 max	—	0.5 max	0.015 max	0.10 max	—	0.015 max
718	1.0 max	2.8–3.3	Balance	17.0–21.0	4.75–5.5	50.0–55.0	0.3 max	0.35 max	0.65–1.15	0.2–0.8	0.35 max	0.015 max	0.08 max	0.006 max	0.015 max
X-750	1.0 max	—	5.0–9.0	14.0–17.0	0.7–1.2	70.0 min	2.25–2.75	1.0 max	0.4–1.0	0.5 max	0.5 max	0.010 max	0.08 max	—	—

Inconel Round Bar Mechanical Properties

These mechanical specifications confirm the high strength, toughness, and thermal stability that make Inconel round bars the preferred choice for aerospace, nuclear, and oil and gas applications.

Property	Alloy 600	Alloy 601	Alloy 625	Alloy 718
Yield Strength (MPa)	240 min	300 min	345 min	550 min
Tensile Strength (MPa)	550 min	650 min	760 min	965 min
Brinell Hardness (HB)	≤ 195	≤ 220	≤ 220	≤ 363
Elongation (%)	30 min	30 min	30 min	30 min
Density (g/cm³)	8.4	8.1	8.4	8.2
Melting Range (°C)	1,370–1,425	1,320–1,370	1,290–1,350	1,260–1,340

Note: Grades 617 and X-750 mechanical data and pricing available on request. Contact us for current stock and lead time.

Equivalent Grades of Inconel Rods

International designations and equivalent grades for Inconel rods. These references ensure accurate material substitution and cross-referencing in global projects.

Grade	JIS	UNS	Werkstoff Nr.	BS	EN	AFNOR	GOST
Inconel 601	NCF 601	N06601	2.4851	NA 49	NiCr23Fe	NC23FeA	XH60BT
Inconel 600	NCF 600	N06600	2.4816	NA 13	NiCr15Fe	NC15FE11M	МНЖМц 28-2,5-1,5
Inconel 625	NCF 625	N06625	2.4856	NA 21	NiCr22Mo9Nb	NC22DNB4M	ХН75МБТЮ
Inconel 718	No JIS equivalent	N07718	2.4668	No BS equiv.	No EN equiv.	No AFNOR equiv.	No GOST equiv.

Tolerances of Inconel Alloy Cold Drawn Bar — DIN EN ISO 286 (Grades h8–h11)

Dimensional tolerances are critical for machined components. The following table provides tolerance ranges for Inconel alloy cold drawn bar to DIN EN ISO 286 tolerance grades h8–h11.

Section / Shape	Diameter / Size (mm)	Variation Permitted (mm)
Round	≥6 ≤18	+ 0 / −0.070
Round	>18 ≤30	+ 0 / −0.085
Round	>30 ≤50	+ 0 / −0.100
Round	>50 ≤80	+ 0 / −0.120
Round	>80 ≤100	+ 0 / −0.140
Flat (width)	<18	+ 0 / −0.110
Flat (width)	>18 ≤30	+ 0 / −0.130
Flat (width)	>30 ≤50	+ 0 / −0.160
Flat (width)	>50 ≤80	+ 0 / −0.190
Flat (width)	>80 ≤100	+ 0 / −0.220
Flat (width)	>100 ≤130	+ 0 / −0.350
Flat (width)	>130 ≤160	+ 0 / −1.00
Flat (width)	>160 ≤320	± 1.00
Flat (thickness)	<18	+ 0 / −0.110
Flat (thickness)	>18 ≤30	+ 0 / −0.130
Flat (thickness)	>30 ≤50	+ 0 / −0.250
Flat (thickness)	>50 ≤80	+ 0 / −0.350
Square & Hex	≥6 ≤18	+ 0 / −0.090
Square & Hex	>18 ≤30	+ 0 / −0.110
Square & Hex	>30 ≤50	+ 0 / −0.130
Square & Hex	>50 ≤80	+ 0 / −0.160
Square & Hex	>80 ≤105	+ 0 / −0.250

Inconel Bright Bar Surface Finish

The surface finish of Inconel bright bars is determined by the manufacturing process, which directly impacts dimensional accuracy and surface condition. The following finishes are available based on application requirements.

P&T — Peeled and Turned

RT — Rough Turned / Peeled

BD — Bright Drawn

SRE — Slit Rolled Edge

CD — Cold Drawn

P — Polished

CF — Cold Finished

HRAP — Hot Rolled, Annealed and Pickled

CG — Centreless Ground

HF — Hot Finished*

ST — Smooth Turned

PR — Peeled and Reeled

*HF = Hot Finished. Note: HF should not be confused with HF acid pickled (hydrofluoric acid) — confirm with supplier on documentation if acid pickling is specified.

Inconel Hex Bar Sizes

Inconel hex bars are supplied for use in fasteners, couplings, and pump parts. The table below lists common sizes in both imperial and metric measurements, with weight per foot and per 12-foot length.

Size (in)	Size (mm)	Wt per Ft (lb)	Wt per 12 ft (lb)
3/16″	4.8	0.104	1.248
1/4″	6.4	0.180	2.160
5/16″	7.9	0.290	3.480
3/8″	9.5	0.625	4.920
7/16″	11.1	0.560	6.720
1/2″	12.7	0.740	8.880
9/16″	14.3	0.930	11.16
5/8″	15.9	1.150	13.80
11/16″	17.5	1.390	16.68
3/4″	19.1	1.660	19.92
13/16″	20.6	1.950	23.40
7/8″	22.2	2.300	27.60
15/16″	23.8	2.625	31.20
1″	25.4	2.900	34.80
1-1/16″	27.0	3.300	39.60
1-1/8″	28.6	3.700	44.40
1-1/4″	31.8	4.625	55.20
1-5/16″	33.3	5.100	61.20
1-3/8″	34.9	5.625	67.20
1-7/16″	36.5	6.100	73.20
1-1/2″	38.1	6.625	79.20
1-5/8″	41.3	7.800	93.60
1-3/4″	44.5	9.030	108.36
1-7/8″	47.6	10.400	124.80
2″	50.8	11.800	141.60
2-1/4″	57.2	14.920	179.04
2-3/8″	60.3	16.920	203.04
2-1/2″	63.5	18.420	221.04
3″	76.2	26.530	318.36

Metric weight per metre (kg/m) available on request. Formula: Wt per ft (lb) × 1.4882.

Weight Chart of Inconel Round Bars

Nominal weight per metre and per foot for standard Inconel round bar diameters. Use for shipping cost estimates, inventory management, and structural design calculations.

Size	kg/m	kg/ft	Size	kg/m	kg/ft
1/4″	0.249	0.076	3 mm	0.055	0.017
5/32″	0.095	0.029	5 mm	0.154	0.047
3/16″	0.141	0.043	4 mm	0.098	0.030
6 mm	0.223	0.068	7/32″	0.190	0.058
7 mm	0.298	0.091	8 mm	0.398	0.120
5/16″	0.387	0.118	3/8″	0.557	0.170
9 mm	0.498	0.152	10 mm	0.620	0.189
11 mm	0.748	0.228	12 mm	0.889	0.271
7/16″	0.761	0.232	13 mm	1.043	0.318
1/2″	0.994	0.303	9/16″	1.256	0.383
14 mm	1.207	0.368	5/8″	1.551	0.473
15 mm	1.391	0.424	16 mm	1.578	0.481
17 mm	1.791	0.543	18 mm	2.001	0.610
11/16″	1.880	0.573	3/4″	2.237	0.682
20 mm	2.470	0.753	22 mm	2.979	0.908
7/8″	3.038	0.926	1″	3.970	1.210
24 mm	3.543	1.080	25 mm	3.871	1.180
26 mm	4.170	1.271	27 mm	4.490	1.368
30 mm	5.548	1.691	1-1/8″	5.033	1.534
32 mm	6.314	1.894	1-1/4″	6.349	1.924
35 mm	7.553	2.390	1-3/8″	7.550	2.303
36 mm	7.999	2.438	38 mm	8.903	2.792
40 mm	9.872	3.009	1-1/2″	8.951	2.715
45 mm	12.555	3.807	1-5/8″	10.449	3.200
1-3/4″	12.179	3.712	1-7/8″	13.977	4.260
48 mm	14.205	4.330	50 mm	15.414	4.698
2″	15.906	4.848	2-1/8″	17.963	5.475
60 mm	22.205	6.768	2-1/4″	20.128	6.135
2-3/8″	22.435	6.838	3″	35.762	10.900
3-1/4″	41.996	12.800	3-1/2″	48.772	14.850
3-3/4″	55.780	17.001	4″	63.340	19.306
4-1/4″	72.249	21.908	4-1/2″	80.340	24.449
4-3/4″	90.249	27.366	5″	99.940	30.461
5-1/2″	121.000	36.690	6″	143.900	43.860
6-1/2″	167.630	51.093	7″	196.000	59.432
7-1/2″	225.000	68.226	8″	254.550	77.586
10″	397.140	121.048	—	—	—

Inconel Bars HSN Code

Harmonized System (HSN) codes are used internationally for customs classification, taxation, and export documentation. Verify applicable codes with your freight forwarder for the destination country.

HS Code	Material Description
72288090*	Inconel 625 Round Bar — *Verify: may fall under Chapter 75 (Nickel)
75051220	Inconel 600 Round Bar
75051220**	Inconel 718 Round Bar — **Verify: confirm separate code if applicable in export jurisdiction

Inconel Flat Bar Sizes

Inconel flat bars are used for structural supports and equipment requiring rectangular profiles. The following table provides metric sizes with theoretical weight per metre.

Flat Size (mm)	Std Length (m)	kg / Metre
10 × 3	6.0	0.24
13 × 3	6.0	0.31
16 × 3	6.0	0.38
20 × 3	6.0	0.48
25 × 3	6.0	0.60
32 × 3	6.0	0.77
40 × 3	6.0	0.97
13 × 5	6.0	0.46
16 × 5	6.0	0.64
20 × 5	6.0	0.81
25 × 5	6.0	1.01
32 × 5	6.0	1.29
40 × 5	6.0	1.61
20 × 6	6.0	0.97
25 × 6	6.0	1.21
32 × 6	6.0	1.55
16 × 8	6.0	1.03
25 × 8	6.0	1.61
32 × 8	6.0	2.06
20 × 10	6.0	1.61
25 × 10	6.0	2.01
32 × 10	6.0	2.58
25 × 12	6.0	2.41
32 × 12	6.0	3.09

Types of Inconel Round Bars

Inconel round bars are available in multiple forms depending on the required finish, manufacturing process, and end application.

Inconel Square Bar

Inconel Alloy Rectangular Bar

Inconel Material Bright Bar

Inconel Metal Rounds

Inconel Shaft

Inconel Alloy Billet

Inconel Material Bloom

Inconel Metal Bar Stock

Inconel Polished Bar

Inconel Alloy Cold Drawn Bar

Inconel Material Hot Rolled Bars

Inconel Metal Annealed Bar

Inconel Forged Bar

Inconel Alloy Ground and Rolled Polished Bar

Inconel Material Peeled Round Bars

Applications of Inconel Round Bars

Inconel round bars are specified for applications demanding exceptional strength, stability, and corrosion resistance under extreme heat and pressure.

Aerospace & Aviation: Used for highly stressed components in jet engines, gas turbines, and rocket motors — including shafts, bolts, and turbine blades. Inconel 718 (AMS 5662/5663) is the aerospace standard for rotating components.

Oil & Gas (Downhole Tools): Critical for downhole drilling components and wellhead parts that must resist stress-corrosion cracking from sour gas (H₂S) and chloride ions at high temperatures. Supplied to NACE MR0175 / ISO 15156 where specified.

Chemical Processing: Used in equipment and piping requiring resistance to aggressive media — hot concentrated acids, alkalis, and chlorides. Inconel 625 is preferred for its superior pitting and crevice corrosion resistance.

Nuclear Reactors: Specified for control rod drive mechanisms, core components, and pressure vessel parts due to resistance to corrosion and irradiation damage in pressurised water reactor (PWR) environments.

Marine & Seawater Environments: Utilised for propeller shafts, pump shafts, and valves requiring excellent resistance to saltwater pitting and crevice corrosion. Inconel 625 is the primary alloy for subsea and offshore applications.

High-Temperature Fixtures: Fabricated into furnace components, radiant tubes, and heat-treating baskets that must maintain strength and resist oxidation above 1,000°C.

Power Generation: Inconel round bars are used for turbine rotor shafts, heat exchanger tubing supports, and boiler fasteners in coal, gas, and nuclear power plants where high creep strength above 700°C is essential.

Machining & Fabrication Notes

Machinability

Inconel alloys work-harden rapidly under cutting loads. Use sharp carbide or ceramic tooling, slow feeds, and adequate coolant. High-pressure coolant is recommended for deep drilling operations in Inconel 718.

Weldability

Inconel alloys are weldable by GTAW (TIG), GMAW (MIG), and SMAW processes. Recommended filler metals: ENiCrMo-3 (for grade 625), ERNiCrMo-3 (for MIG/TIG on 625), ENiCrFe-3 (for grades 600 and 718). Match filler to base alloy for optimum corrosion resistance.

Post-Weld Treatment

Solution annealing at 980 °C (Inconel 625) or 954 °C (Inconel 600) is recommended after welding to relieve residual stress and restore corrosion resistance. Inconel 718 welds are precipitation hardened at 718 °C following solution anneal.

Inconel Round Bars Price List

Inconel round bar prices are highly variable due to fluctuating nickel markets, alloy surcharges, grade, size, and order quantity. The table below provides estimated price ranges for the Indian market.

Grade	Size Range (mm)	Est. Price — India (INR/kg)
Inconel 600 Round Bar	6 to 100	₹2,200 – ₹2,800
Inconel 625 Round Bar	12 to 150	₹3,800 – ₹4,500
Inconel 718 Round Bar	10 to 200	₹4,500 – ₹5,500
Inconel 825 Round Bar	15 to 100	₹2,600 – ₹3,200

Prices are indicative and subject to change without notice based on LME nickel prices and alloy surcharges. Contact Solitaire Overseas for current pricing based on your specific grade, diameter, and quantity.

All Inconel round bars supplied with EN 10204 3.1 material test certificates. ISO 9001:2015 certified supply chain.

Related Products

Inconel Round Bars

Inconel 600 Round Bar

Inconel 601 Round Bar

Inconel 625 Round Bar

Inconel 718 Round Bar

Incoloy 800 Round Bar

Incoloy 825 Round Bar

Inconel Fittings

Inconel Flanges

Frequently Asked Questions — Inconel Round Bars

How does Solitaire Overseas ensure the quality of Inconel round bars?

Every batch is verified through independent third-party certification and undergoes detailed chemical composition analysis using optical emission spectrometry (OES). Mechanical tests — tensile, yield, hardness, and elongation — are performed per ASTM/ASME standards. Non-destructive examination (ultrasonic or dye-penetrant testing) is applied for critical orders. Full material test certificates (MTCs) with heat number traceability are supplied with every shipment.

What ASTM standards cover Inconel round bars?

Inconel 600 and 601 bars conform to ASTM B166 (UNS N06600 / N06601). Inconel 625 bars conform to ASTM B446 (UNS N06625). Inconel 718 bars conform to ASTM B637 (UNS N07718). Incoloy 800 bars are covered by ASTM B408 (UNS N08800) and Incoloy 825 bars by ASTM B425 (UNS N08825). AMS 5662 and AMS 5663 are available for aerospace-grade Inconel 718.

What is the maximum diameter available for Inconel round bars?

We supply Inconel round bars in diameters from 3 mm up to 800 mm. Diameters above 250 mm are typically supplied as forged and turned bars with bespoke lead times.

What is the difference between Inconel 625 and Inconel 718 round bars?

Inconel 625 (UNS N06625) is a solid-solution-strengthened alloy excelling in aqueous corrosion resistance — preferred for marine, subsea, and chemical processing applications. Inconel 718 (UNS N07718) is a precipitation-hardened alloy with higher tensile strength (965 MPa min.) at temperatures up to 704 °C — the standard choice for aerospace rotating parts and high-pressure oil and gas fasteners.

What is the difference between Inconel and Incoloy round bars?

Inconel alloys (600, 601, 625, 718) are predominantly nickel-chromium based with nickel content typically above 50 %. Incoloy alloys (800, 825) contain nickel in the range 30–46 %, balanced with iron and chromium, making them cost-effective for moderate high-temperature and corrosion-resistant applications. Both families are nickel superalloys but optimised for different temperature and corrosion service conditions.

Can you supply material with EN 10204 3.2 test certificates?

Yes. We supply material with EN 10204 3.2 (third-party witnessed) test certificates from approved inspection agencies including Bureau Veritas, SGS, Intertek, and TÜV. NACE MR0175 / ISO 15156 compliance documentation is also available on request.

What surface finishes are available for Inconel round bars?

Available finishes include Hot Rolled (HR), Cold Drawn (CD), Bright Annealed, Centreless Ground (CG), Peeled and Turned (P&T), and Black Forged. Cold drawn and centreless ground bars offer the tightest dimensional tolerances and are specified for precision machined components.

What is the minimum order quantity for Inconel round bars?

We accommodate both small and large orders. For commonly stocked grades (600, 625, 718) and standard sizes, ex-stock supply is available for immediate dispatch. For non-standard grades or custom dimensions, a minimum order may apply. Please contact our sales team for a quick quote.

Can Inconel round bars be supplied in custom cut lengths?

Yes. Standard lengths are 0.5–6.0 m, but we supply custom cut lengths, fixed lengths, and random lengths to project requirements. All cut pieces are supplied with material identification markings and full heat number traceability.