Inconel Round Bar

Inconel Round Bar Manufacturer, Supplier & Stockist

Unifit Fastener is a reputed manufacturer, supplier, and exporter of high-performance Inconel round bars of 600 grade, 601 grade, 625 grade, X-750 grade, and 718 grade. These bars are made out of nickel-based alloy, which is designed to work in extreme circumstances and is highly resistant to corrosion, oxidation and high temperatures. The formation of a protective oxide of Inconel is a natural event when exposed to heat, which makes Inconel have a long service life even when subjected to harsh operating conditions.

We also have Inconel round bars, bright bars, hex bars, square bars, flat bars, hollow bars and forged bars all manufactured under the tight control of quality. The Inconel flat bars find application especially in aerospace, marine and chemical processing industries because they are highly resistant to crevice corrosion. Forged Inconel bars will provide greater strength than rolled products because they have a densely solid core structure.

Unifit Fastener also distributes cold-drawn, peeled, machined, polished and machined Inconel bars with improved dimensional accuracy, surface finish and machinability. The bars are common in the valve shafts, pump shafts, piston rods, bearings and other vital industrial parts.

We offer on-hand stocks of various sizes and profiles, which enables us to provide the specific cut lengths with no minimum order level. Unifit Fastener has an excellent global distribution system and thus guarantees rapid delivery, low prices and consistent quality of Inconel bars all over the world.

Select Unifit Fastener to make Inconel solutions that can be depended upon to deliver when all others would fail.

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Inconel Round Bar Grades

Specification of Inconel Round Bar

Parameter Details
Grade Inconel – UNS
Specification / Standard ASTM B166
Inconel Round Bar Size Diameter: 3 mm – 800 mm
Inconel Angle Bar Size 3 mm × 20 mm × 20 mm to 12 mm × 100 mm × 100 mm
Inconel Square Bar Size 4 mm × 4 mm to 100 mm × 100 mm
Inconel Flat Bar Size Thickness: 2 mm – 100 mm
Width: 10 mm – 500 mm
Inconel Hex Bar Size 2 mm – 100 mm
Inconel Billet Size ½ inch to 495 mm Diameter
Inconel Rectangle Size 33 mm × 30 mm to 295 mm × 1066 mm
Finish Bright, Polished, Rough Turned, Grinding, Centreless Ground, Black
Tolerance H8, H9, H10, H11, H12, H13, K9, K10, K11, K12 or as per client requirement
Surface Condition Hot Rolled Pickled, Sand Blasted, Cold Drawn, Bright, Polished, Hairline
Delivery Condition Cold Drawn & Polished, Centreless Ground & Polished, Annealed
Manufacturing Technique Hot Rolled, Cold Rolled, Cold Drawn, Forged Round Bar, Rod
Inconel Bar Types Drawn Bar, Rolled Bar, Forged Bar, GFM Forged Bar, Open Die Bar, Forged Stepped Shafts, Forged Flat Bar, Forged Square Bar
Available Forms Round, Rod, Precision Ground Bar, Square, Hollow, Hex (A/F), Triangle, Rectangle, Threaded, T-Bar, Half Round Bar, Flat Bar, Rings, Blocks, Billet, Ingot, I/H Bar, Angle, Channel Bar, Profiles, Forgings
NACE Compliance NACE MR0175 / ISO 15156

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Types of Inconel Round Bar

Inconel Polished Bar Equivalent Grades

Grade Werkstoff Nr. UNS BS GOST JIS AFNOR EN
Inconel 718 2.4668 N07718
Inconel 600 2.4816 N06600 NA 13 ЭИ868 NCF 600 NC15FE11M NiCr15Fe
Inconel 625 2.4856 N06625 NA 21 ЭИ602 NCF 625 NC22DNB4M NiCr22Mo9Nb
Incoloy 800 1.4876 N08800 NA 15 ЭИ670 NCF 800 Z8NC32-21 X10NiCrAlTi32-20
Incoloy 825 2.4858 N08825 NA 16 ЭП703 NCF 825 NFE30C20DUM NiCr21Mo

Inconel Flat Bar Chemical Composition (%)

Grade Ni Mn Fe Si Cr Mo C Cu S Co Ti Nb Al
Inconel 718 50–55 0.35 max 0.35 max 17–21 2.8–3.3 0.08 max 0.3 max 0.015 max 1.0 max
601 58–63 1.0 max Balance 0.50 max 21–25 8–10 0.10 max 1.0 max 0.015 max 1.0–1.7
625 58 max 0.50 max 5.0 max 0.50 max 20–23 8–10 0.10 max 0.015 max 1.0 max 0.40 max 3.15–4.15 0.40 max
600 72 min 1.0 max 6–10 0.5 max 14–17 0.15 max 0.5 max 0.015 max

Inconel Rod Mechanical Properties

Grade Elongation (%) Tensile Strength (psi) 0.2% Yield Strength (psi)
718 45 135,000 70,000
600 40 95,000 45,000
601 35 80,000 30,000
625 42.5 135,000 75,000

Inconel Bar Density

Grade Density (g/cm³) Density (lb/in³)
601 8.11 0.293
600 8.47 0.306
718 8.19 0.296
625 8.44 0.305

Inconel Metal Rectangular Bar Tolerances

Type Size (mm) Size (in.) ISO Tolerance
Peeled & Polished 40 – 150 1.5″ – 6″ h11
Cold Drawn & Polished 3 – 75 1/8″ – 3″ h8 – h11
Peeled & Ground 20 – 50 3/4″ – 2″ h9 – h11
Cold Drawn & Ground 10 – 75 5/16″ – 2.5″ h8 – h11

Hardness of Inconel Alloy Hex Bar

Grade Rockwell B Brinell
625 85 – 90 170 – 200
600 90 – 95 170 – 210
601 90 – 95 180 – 220
718 35 – 45 250 – 300

Weight Chart of Inconel Square Bar

Size kg/ft kg/m
22 mm 0.908 2.979
36 mm 2.438 7.999
48 mm 4.330 14.205
25 mm 1.180 3.871
27 mm 1.368 4.490
26 mm 1.271 4.170
30 mm 1.691 5.548
32 mm 1.894 6.314
35 mm 2.390 7.553
38 mm 2.792 8.903
40 mm 3.009 9.872
45 mm 3.807 12.555
50 mm 4.698 15.414
60 mm 6.768 22.205
1″ 1.210 3.970
1-1/8″ 1.534 5.033
1-1/4″ 1.924 6.349
1-3/8″ 2.303 7.550
1-5/8″ 3.200 10.449
1-3/4″ 3.712 12.179
1-7/8″ 4.260 13.977
2″ 4.848 15.906
2-1/8″ 5.475 17.963
2-1/4″ 6.135 20.128
2-3/8″ 6.838 22.435
2-1/2″ 7.576 24.856
2-5/8″ 8.354 27.409
2-3/4″ 9.169 30.083
3-1/4″ 12.800 41.996
3-1/2″ 14.850 48.772
4″ 19.306 63.340
4-1/4″ 21.908 72.249
4-1/2″ 24.449 80.340
4-3/4″ 27.366 90.249
5″ 30.461 99.940
5-1/2″ 36.690 121.000
6″ 43.860 143.900
6-1/2″ 51.093 167.630
7″ 59.432 196.000
7-1/2″ 68.226 225.000
8″ 77.586 254.550
10″ 121.048 397.140

Inconel Alloy Hex Bar Sizes

Size (in.) Weight per Ft (lbs) Weight per 12 ft (lbs)
3/16″ 0.104 1.248
1/4″ 0.180 2.160
5/16″ 0.290 3.480
3/8″ 0.625 4.920
7/16″ 0.560 6.72
1/2″ 0.740 8.880
9/16″ 0.930 11.16
5/8″ 1.150 13.80
11/16″ 1.390 16.68
3/4″ 1.660 19.92
13/16″ 1.950 23.40
7/8″ 2.300 27.60
15/16″ 2.625 31.20
1″ 2.90 34.80
1-1/16″ 3.30 39.60
1-5/16″ 5.100 61.20
1-3/8″ 5.625 67.20
1-7/16″ 6.100 73.20
1-5/8″ 7.800 93.60
1-3/4″ 9.030 108.36
1-7/8″ 10.400 124.80
2″ 11.80 141.60
2-1/4″ 14.920 179.04
2-3/8″ 16.920 203.04
2-1/2″ 18.42 221.04
3″ 26.53 318.36

Dimensions of Inconel Flat Bar

Flat Size (mm) Length (m) kg/m Colour Code
20 × 10 6.0 1.61 Yellow
200 × 16 6.0 25.7 Grey
100 × 25 6.0 20.1 Purple
300 × 8 6.0 19.3 Red
130 × 20 6.0 20.9 Green
13 × 3 6.0 0.31 Blue
16 × 8 6.0 1.03 Red
25 × 12 6.0 2.41 Pink
65 × 25 6.0 13.1 Purple
150 × 16 6.0 19.3 Grey
32 × 12 6.0 3.09 Pink
10 × 3 6.0 0.24 Blue
250 × 12 6.0 24.1 Pink
180 × 5 6.0 7.24 Orange
50 × 25 6.0 10.1 Purple
40 × 20 6.0 6.14 Green
75 × 40 6.0 24.1 Yellow
90 × 12 6.0 8.69 Pink
110 × 12 6.0 10.6 Pink

Inconel Rod Stock

Manufacturing Grade Specification DFARS Diameter (in.)
Hot Finished 601 AMS 5715 No 0.3125
Hot Finished 600 ASME SB564, ASTM B166 No 1.2500
Cold Finish 600 ASME SB166, ASTM B166 Yes 0.3125
Hot Finished 625 PWA 300, AMS 5666 No 1.5000
825 ASME SB425, ASTM B425 No 1.2500
Cold Drawn 601 AMS 5715 No 0.1875
Hot Finished 625 ASME SB446, AMS 5666 No 1.0000
Hot Finished 718 AMS 5662 / CPW-A-5662 No 1.2500
825 ASME SB425, ASTM B425 No 1.0000
800H ASME SB408, ASTM B408 No 1.2500
Hot Finished 718 AS 6279, AMS 5662 No 1.2500
800HT ASME SB564, ASTM B408 No 1.2500

Dimensions of Inconel Alloy Round Rod

ASTM / Canadian Size Metric (mm) Size Japanese (mm) Size US Bar (in.) Size
500 25M 7 7 16 16 0.625 #5
20 20 44 44 1.750 #14
100 10M 5 5 6 6 0.250 #2
16 16 38 38 1.500 #12
700 30M 8 8 19 19 0.750 #6
18 18 41 41 1.625 #13
1500 45M 10 10 25 25 1.000 #8
14 14 35 35 1.375 #11
1000 35M 9 9 22 22 0.875 #7
25 25 51 51 2.000 #16
2500 55M 11 11 29 29 1.125 #9
22 22 48 48 1.875 #15
28 28 57 57 2.250 #18
300 20M 6 6 13 13 0.500 #4

Weight Calculation Formula of Inconel Round Bar

Formula No. Weight Formula (kg/m) Based On Parameters
1 R² ÷ 40.5 Radius OD = Outside Diameter (mm)
R = OD ÷ 2 (mm)
2 R² × 0.02466 Radius OD = Outside Diameter (mm)
R = OD ÷ 2 (mm)
3 OD² × 0.00617 Diameter OD = Outside Diameter (mm)
4 OD² ÷ 162 Diameter OD = Outside Diameter (mm)
5 0.0007854 × OD × OD × 7.85 Density-based OD = Outside Diameter (mm)
Density ≈ 7.85 g/cm³

Applications of Inconel Round Bars

Inconel bars are widely used in industries where high strength, corrosion resistance, and thermal stability are essential. Common applications include:

  • Aerospace components such as turbine blades, fasteners, and engine parts
  • Oil and gas equipment including valve shafts, pump shafts, and wellhead components
  • Marine engineering parts exposed to seawater and harsh environments
  • Chemical and petrochemical processing equipment
  • Heat exchangers, furnaces, and high-temperature structural components
  • Power generation systems including nuclear and thermal plants
  • Shafts, pistons, bearings, and pressure vessel components

People Ask About Inconel Round Bars

What makes Inconel bars suitable for high-temperature applications?

Inconel alloys retain their mechanical strength and form a protective oxide layer at elevated temperatures, preventing oxidation and scaling.

Are Inconel bars resistant to corrosion?

Yes, Inconel bars offer excellent resistance to corrosion, crevice corrosion, and oxidation in both aqueous and high-temperature environments.

Can Inconel bars be supplied in custom lengths and finishes?

Yes, Inconel bars can be supplied in exact cut lengths with finishes such as cold drawn, peeled, ground, polished, or machined.

Which industries commonly use Inconel bars?

Aerospace, oil & gas, marine, chemical processing, power generation, and heavy engineering industries widely use Inconel bars.