Inconel 725 Fasteners


Inconel 725 Fasteners Overview


Inconel 725 Fasteners Inconel 725 Fasteners Size in Stock :

Imperial : 3/6" to 2", Metric : M3 to M56

Nickel Alloy 725 Bolt Nickel Alloy 725 Bolt MTC :

EN 10204 3.1 and 3.2

ASTM B166 UNS N07725 Washer ASTM B166 UNS N07725 Washer Form :

B, C, E, D, G, A Form





Alloy 725 Hex Bolts Alloy 725 Hex Bolts Origin :

Belgium, Greece, Portugal, Spain

Nickel 725 Bolt Nickel 725 Bolt Standard:

ASTM B166, ASME SB166

UNS N07725 Studs UNS N07725 Studs Threads:

UNC, UNF, BSF, UNEF


CITIZEN Metals Pvt. Ltd Supplies Wide Range of Sizes. Click Here For Data Sheet.


Inconel 725 Fasteners

ASTM B166 UNS N07725 Bolt Manufacturer in India, Check Composition

Inconel 725 Fasteners Chemical Composition

Elements C Ni S Mo Fe Cr Mn Si Co Al Ti P Nb + Tc
Max % 0.10 Bal 0.015 10.0 5.0 23.0 0.5 0.5 1.0 0.4 0.40 0.015 4.15
Min % - - - 8.0 - 20.0 - - 8.0 - - - 3.15
ASTM B166 UNS N07725 Bolt

ASTM B166 UNS N07725 Bolt

Alloy 725 Hex Bolts

Alloy 725 Hex Bolts

Nickel Alloy 725 Nuts

Nickel Alloy 725 Nuts

Inconel 725 Studs

Inconel 725 Studs


Table of Content


Inconel 725 Fasteners Specification

Inconel 725 Fasteners Sizes in Stock

Inconel 725 Fasteners Sizes in Stock

  • Metric sizes : M3 to M56
  • Imperial Sizes : 3/6" to 2"
  • Length : 3 to 200 mm
Alloy 725 Bolt Ends

Alloy 725 Bolt Ends

  • Saw cut
  • Chamfer, Flat
  • Rounded
  • Sheared
ASTM B166 UNS N07725 Stud Bolt

ASTM B166 UNS N07725 Stud Bolt Threads

  • UNC, BSW
  • METRIC, UNF
  • BSF etc.

Nickel Alloy 725 Screws Head Style

Nickel Alloy 725 Screws Head Style

  • Truss
  • Button
  • Pan
  • Round
UNS N07725 Hex Bolt Neck Types

UNS N07725 Hex Bolt Neck Types

  • Square
  • Knurled
  • Hex, Triangular

Nickel Alloy 725 Nuts Process

Nickel Alloy 725 Nuts Process

  • Hot Forging
  • CNC machined
  • Cold Forging


ASTM B166 UNS N07725 Bolt Surface

ASTM B166 UNS N07725 Bolt Surface

  • Phosphating
  • Oxidation
  • HDG
ASME SB166 N07725 Screws Tip Style

ASME SB166 N07725 Screws Tip Style

  • Dog
  • Rolled
  • Die, A pinch
Inconel 725 Threaded Rod Thread Pitch

Inconel 725 Threaded Rod Thread Pitch

  • Fine Threads
  • Coarse Threads


Alloy 725 Hex Bolts Origin

Alloy 725 Hex Bolts Origin

  • European
  • Japanese
  • Indian, Korean
  • American
725 Inconel Industrial Fasteners Condition

725 Inconel Industrial Fasteners Condition

  • Cold Drawn
  • Threading

UNS N07725 Stud Bolt Type

UNS N07725 Stud Bolt Type

  • Fine/ Fully Threaded
  • Tap-End
  • Double-End


Supplier of Alloy 725 Hex Bolts and Nuts With M3 to M56 Metric Sizes at Lowest Price in Mumbai

Alloy 725 Hex Bolts Size Chart

Inconel 725 Fasteners Supplier in India, Offering Various Sizes as Per Project Requirement

Alloy 725 Hex Bolts Size Chart  
d1d1 e k s
M48 82.6 30 75
M3 6.01 2 5.5
M5 8.79 3.5 8
M30 50.85 18.7 46
M6 11.05 4 10
M24 39.98 15 36
M8 14.38 5.3 13
M12 21.1 7.5 19
M16 26.75 10 24
M20 33.53 12.5 30
M14 24.49 8.8 22
M22 35.72 14 32
M27 45.2 17 41
M10 18.9 6.4 17
M33 55.37 21 50
M4 7.66 2.8 7
M36 60.79 22.5 55
M18 30.14 11.5 27
M42 71.3 26 65

ASTM B166 UNS N07725 Nuts Size Chart

looking to find a Inconel 725 Fasteners Manufacturer with Phosphating Finish? Citizen Metals Pvt. Ltd Offers Various Finishes and Sizes in Switzerland, Italy, France, Norway

ASTM B166 UNS N07725 Nuts Size Chart  
Nut Size Thread Pitch Width Across Flats Width Across Corner Height of the Nut
min max Min min max
M1.6 0.35 3.02 3.20 3.41 1.05 1.30
M64 6 92.8 95.0 104.86 49.1 51.0
M2 0.4 3.82 4.00 4.32 1.35 1.60
M3 0.5 5.32 5.50 6.01 2.15 2.40
M48 5 73.1 75.0 82.6 36.4 38.0
M3.5* 0.6 5.82 6.00 6.58 2.55 2.80
M6 1 9.78 10.00 11.05 4.9 5.2
M12 1.75 17.73 18.00 20.03 10.37 10.80
M8 1.25 12.73 13.00 14.38 6.44 6.80
M10 1.5 15.73 16.00 17.77 8.04 8.40
M14* 2 20.67 21.00 23.36 12.1 12.8
M20 2.5 29.16 30.00 32.95 16.9 18.0
M16 2 23.67 24.00 26.75 14.1 14.8
M18* 2.5 26.16 27.00 29.56 15.1 15.8
M22* 2.5 33 34 37.29 18.1 19.4
M24 3 35 36 39.55 20.2 21.5
M36 4 53.8 55.0 60.79 29.4 31.0
M27* 3 40 41 45.2 22.5 23.8
M30 3.5 45 46 50.85 24.3 25.6
M33* 3.5 49 50 55.37 27.4 28.7
M39* 4 58.8 60.0 66.44 31.8 33.4
M42 4.5 63.1 65.0 71.3 32.4 34.0
M5 0.8 7.78 8.00 8.79 4.4 4.7
M45* 4.5 68.1 70.0 76.95 34.4 36.0
M4 0.7 6.78 7.00 7.66 2.9 3.2
M52* 5 78.1 80.0 88.25 40.4 42.0
M2.5 0.45 4.82 5.00 5.45 1.75 2.00
M56 5.5 82.8 85.0 93.56 43.4 45.0
M60* 5.5 87.8 90.0 99.21 46.4 48.0

Stockist of UNS N07725 Stud Bolt and Threaded Rod in Coarse, UNEF, BSF and Metric Threads With Third Party Inspection Reports

Nickel Alloy 725 Stud Bolt Threads

Unified National Thread
  • UNC
  • UNC
  • UNF
  • UNEF
Metric Thread
  • Male Thread
 ACME Threads
NPT
Custom Threads

Ready Stock of UNS N07725 Fasteners

Trusted Inconel 725 Fasteners Manufacturer in India, Citizen Metals Pvt. Ltd Provides Huge Stock of Nickel Alloy 725 Fasteners With MTC

Inconel 725 Bolt

Inconel 725 Bolt

UNS N07725 Nuts

UNS N07725 Nuts

NCF 725 Hex Bolt

NCF 725 Hex Bolt

Nickel Alloy 725 Stud Bolt

Nickel Alloy 725 Stud Bolt

ASTM B166 UNS N07725 Washers

ASTM B166 UNS N07725 Washers

Alloy 725 Screws

Alloy 725 Screws

2.4856 Alloy 725 Threaded Rod

2.4856 Alloy 725 Threaded Rod

UNS N07725 Square Bolt

UNS N07725 Square Bolt

ASME SB166 N07725 Eye Bolt

ASME SB166 N07725 Eye Bolt

DIN 2.4856 Heavy Hex Bolt

DIN 2.4856 Heavy Hex Bolt

Inconel 725 Flange Bolt

Inconel 725 Flange Bolt

Nickel 725 Square Bolt

Nickel 725 Square Bolt

WNR 2.4856 Socket head Cap Screws

WNR 2.4856 Socket head Cap Screws

Inconel 725 Flat Washers

Inconel 725 Flat Washers

Nickel Alloy 725 Machine Screws

Nickel Alloy 725 Machine Screws

Alloy 725 Hex Nut

Alloy 725 Hex Nut


UNS N07725 Threaded Rod Testing Methods

Inconel 725 Fasteners Stockist in India at Best Price and Lead Time for Qatar, Bahrain, Oman, Egypt and Brazil

Mechanical Testing
  • Stress Rupture Testing
  • Axial and Wedge Tensile Testing
  • Impact Testing
  • Yield Strength
  • Shear Testing (Single and Double)
  • Fatigue Testing
  • Proof Load Testing
  • Creep Testing
  • Hardness Testing
  • Hydrogen Embrittlement Testing
Metallurgical Testing
  • Alpha Case
  • Microstructure
  • Plating Thickness
  • Grain Flow
  • Surface Discontinuities
  • Surface Contamination
  • Carburization and Decarburization
  • Microhardness
  • Grain Size
Non-Destructive Testing
  • Liquid Penetrant Testing
  • Magnetic Particle Inspection
  • Ultrasonic Testing
  • Radiographic Testing
Chemistry Analysis
  • X-Ray Fluorescence (XRF) Analysis
  • Optical Emission Spectroscopy (OES) Analysis
  • Fourier-Transform Infrared Spectroscopy (FTIR) Analysis
  • Energy Dispersive Spectroscopy (EDS) Analysis
  • Carbon Sulfur Combustion Determination
Exporter of ASME SB166 N07725 Screws in Flat, Hex, Oval and Truss Head Type for Marine Engineering, View Torque Chart

Inconel 725 Bolt Torque Chart

Inconel 725 Fasteners Supplier in India, Offering ASTM B166 UNS N07725 Bolt With Various Torque With Third Party Inspection Report

Bolt Size Proof Load (lbs) Clamp Load (lbs)
1-3/8" 38,100 28,575
3/8" 4,250 3,188
5/16" 2,900 2,175
1" 20,000 15,000
7/16" 5,850 4,388
3/4" 18,400 13,800
7/8" 15,200 11,400
1-1/8" 25,200 18,900
1-1/4" 32,000 24,000
5/8" 12,400 9,300
1/4" 1.750 1.313
9/16" 10,000 7,500
1/2" 7,800 5,850
1-1/2" 46,400 34,800

ASME SB166 N07725 Screws Applications

  • Aerospace Industry
  • Chemical Industry
  • Food Processing Industry
  • Energy Industry
  • Power Plant Industry
  • Pulp & Paper Indusry
  • Pharmaceuticals Industry
  • Petrochemical Industry
  • Oil and Gas Industry
Refer to the Alloy 725 Heavy Hex Bolts, Washers and 725 Inconel Industrial Fasteners Material Properties

Nickel 725 Heavy Hex Bolt Mechanical Properties

Temperature (°F) Yield Strength at 0.2% Offset(ksi) Ultimate Tensile (ksi) Elongation %
Room Temp. 84.0 144.0 44.0
1725 39.0 40.0 117.0
1200 60.0 119.0 34.0
800 61.0 132.0 45.0
1000 61.0 130.0 48.0
400 66.0 134.0 45.0
725 63.0 132.0 42.5
1400 59.0 78.0 59.0

WNR 2.4856 Hex Nuts Thermal and Electrical Properrties

Temperature Coefficient of Expansion Electrical Resistivity
°F in/in-°F ohm-cmil/ft
1600 - 784.6
200 7.22 696.2
1000 7.79 758.6
400 7.21 710.4
800 7.68 741.3
1200 8.05 761.7
70 - 688.3
600 7.44 727.1
1400 - 776.1
Temperature Coefficient of Expansion Electrical Resistivity
°C µm/m-°C μohm-m
500 14.1 1.251
800 - 1.302
20 - 1.144
200 13.1 1.179
100 13.0 1.158
300 13.4 1.206
400 13.7 1.226
700 - 1.273
600 14.4 1.265

Inconel Alloy 725 Physical Properties

Density Young’s Modulus Melting Range Permeability Poisson’s Ratio Shear Modulus
lb/in3 g/cm3 (70°F), ksi x 103 GPa °C °F at 200 oersted 15.9 kA/m (70°F). (70°F), ksi x103 GPa
.0.300 8.31 29.6 204 1271-1343 2320-2449 <1.001 0.31 11.3 78

ASTM B166 UNS N07725 Washers Flattening Tests

Hardness MPa 917 807
Yield Strength (0.2% Offset) ksi 133 117
Flattening* Rc 39 36

Inconel 725 Fasteners Modulus of Elasticity

Temperature °F 1400 70 400 200 600 1000 800 1200 1600
Shear Modulus ksi x 10⁹ 8.4 11.3 10.7 11.1 10.3 9.6 9.9 9 7.9
Young's Modulus ksi x 10⁹ 22.5 29.6 28.2 29.1 27.2 25.4 26.3 24 21.2
Poisson's Ratio   0.34 0.31 0.32 0.31 0.32 0.32 0.33 0.33 0.34
Temperature °C 100 600 20 200 400 300 500 800 700
Shear Modulus GPa 76 63 78 74 69 71 67 56 61
Young's Modulus GPa 200 169 204 194 182 188 177 150 160
Poisson's Ratio   0.32 0.35 0.31 0.31 0.32 0.32 0.32 0.33 0.32

ASME SB166 UNS N07725 Square Bolt Thermal Conductivity and Specific Heat Values

Temp (°C)   93 538 23 100 200 500 149 260 300 204 316 400 427 371 593 482 600
Tempe (°F)   200 1000 73 212 392 932 300 500 572 400 600 752 800 700 1100 900 1112
Thermal Conductivity BTU In/ft² h °F 81.34 130.88 73.76 82.06 93.97 125.94 87.88 100.54 104.92 94.46 106.78 116.86 119.92 113.41 138.15 124.33 139.02
W/m K 11.724 18.864 10.631 11.827 13.544 18.152 12.666 14.491 15.122 13.615 15.39 16.843 17.284 16.346 19.912 17.92 20.037
Specific Heat BTU/lb °F 0.107 0.127 0.103 0.107 0.112 0.125 0.11 0.115 0.117 0.113 0.118 0.122 0.123 0.121 0.132 0.124 0.133
J/kg °C 446 531 430 447 468 519 457 481 489 469 492 508 511 503 550 517 552
Temp (°C)   700 1149 649 704 800 1100 760 871 900 816 927 1000 1038 982 1200 1093
Tempe (°F)   1292 2100 1200 1300 1472 2012 1400 1600 1652 1500 1700 1832 1900 1800 2192 2000
Thermal Conductivity BTU In/ft² h °F 155.58 196.29 147.12 155.78 160.01 187.59 158.24 163.71 165.21 160.82 168.08 175.96 180.35 174.05 205.39 186.81
W/m K 22.424 28.292 21.205 22.453 23.062 27.038 22.807 23.596 23.812 23.179 24.226 25.361 25.994 25.086 29.604 26.925
Specific Heat BTU/lb °F 0.145 0.159 0.139 0.145 0.146 0.157 0.146 0.148 0.148 0.146 0.15 0.153 0.155 0.152 0.163 0.157
J/kg °C 604 663 577 604 609 654 607 615 618 610 624 639 645 635 673 653

2.4856 Inconel 725 Bolt C-Ring Tests in NACE Solution

Alloy INCONEL Alloy 725 Fasteners
Material Condition   Cold Worked Age Hardened CW & Aged
Yield Strength (0.2% Offset) ksi 90 128.6 117.6 130.8 133 132.9 137.8
Duration Rc 25 40 37 41.5 39 36 39
Hardness MPa 621 887 811 902 917 916 950
Sulfide Stress Cracking Days 30 30 30 30 30 42 42

Alloy 725 Fasteners Average Corrosion Rates in Mineral Acids

Alloy 725 Condition 1 2 3 4
3% HCl 150°F (66°C) mpy <1 <1 <1 <1
5% HCl 150°F (66°C) mm/a <0.03 <0.03 <0.03 <0.03
10% HCl 150°F (66°FC) mpy <1 <1 <1 <1
Boiling 80% H3PO4 mpy 25 25 25  
Boiling 10% HNO3 mpy 105 268 250 218
Boiling 30% H3PO4 mm/a 2.67 6.81 6.35 5.54
Boiling 10% H2SO4 mm/a <0.03 <0.03 <0.03 <0.03

Corrosion Rates for UNS N07725 Nuts in Acid Environments

Environment 1% HCl 0.2% HCl 5% HCl 60% H2SO4 10% H2SO4 95% H2SO4 85% H2PO4 80% CH3CO2H
Temperature °C (°F)   Boiling 90 (194) Boiling 70 (158) 50 (122) 30 (86) 70 (158) 50 (122) 30 (86) Boiling 70 (158) 50 (122) 30 (86) 90 (194) Boiling Boiling
0-96 Hours mm/a 0.12 0.64 <0.01 4.92 1.34 0.24 0.65 0.59 0.04 0.25 1.68 1.84 0.28 0.01 0.78 <0.01
mpy 4.6 25 <0.1 193.8 52.8 9.4 25.5 23.1 1.5 9.9 66.3 72.6 11 0.54 30.7 <0.1
96-192 Hours mm/a 0.05 0.05 <0.01 5.16 1.33 0.17 0.65 0.02 0.03 0.55 1.71 1.27 0.34 0.01 0.79 <0.01
mpy 1.9 2 <0.1 203.3 52.5 6.6 25.6 0.71 1.3 21.5 67.5 50.1 13.3 0.5 31.2 <0.1
0-192 Hours mm/a 0.26 0.05 <0.01 4.31 1.14 0.18 0.41 0.74 0.18 0.12 1.07 0.58 0.33 0.01 1.47 <0.01
mpy 10.2 2 <0.1 169.7 44.7 7.8 16 29 7.1 4.6 42 23 13 0.32 58 <0.1

Inconel 725 Fasteners Client Reference

Location Projects Material
Egypt Asorc Naphtha complex project (ISBL) Inconel 725 Fasteners
Germany Scholven Phase III CHP Plant ASTM B166 UNS N07725 Bolt
Italy EFRA Project Alloy 725 Hex Bolts
Dubai Jebel Ali expansion project Inconel 725 Threaded Rod
Netherlands REACTOR REPLACEMENT FOR R-501 POWERFORMING UNIT ROTTERDAM REFINERY ASME SB166 N07725 Screws
Qatar QAFCO 3 Project Nickel 725 Washers
Oman Duqm refinery projects Alloy 725 Heavy Hex Bolts

Our Speciality Products


  • Inconel 725 Fasteners Supplier in India Maintain a Huge Stock of Corrosion-Resistant Bolts, Nuts, Screws, Washers etc PED-certified Distributor and Trader in Mumbai.

  • Inconel 725 Fasteners Importer and Stockholder in Accordance With DIN, ISO, JIS, BS, and ASME Standards.

  • Inconel 725 Fasteners Manufacturer in India Offer Competitive Prices to Local Supplier, Trader, and Wholesaler in the Austria, Bahrain, UAE, Ireland, Saudi Arabia, Kuwait and Denmark

  • Compare Price per KG in India

  • Dealer and Distributor of Inconel 725 Fasteners at Low Cost in Mumbai

  • Stockist and Exporter of prime quality Inconel 725 Fasteners for Extreme Pressure Environment

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Prasad Chambers, Office No. 912A, 9th Floor, Opera House, Charni Road, Mumbai-400004, India.

Tel No. : +91-22-61905600 (100 Lines)

Mob No. : +91-9820356311

Email : exports@citizenltd.com