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Inconel Nuts

Brand RAYCHIN

Product origin China

Delivery time 5-35 DAYS

Inconel® nuts and lock nuts, like Inconel 600, 601,625, 686, 718 & 725 nuts, are a family of nickel-chromium-molybdenum alloys used for their high strength at elevated temperatures and good corrosion resistance. Because of its high thermal stability, Inconel can be used in service temperatures ranging from cryogenic to 2200°F (982°C). The high alloy content of Inconel nuts enable it to withstand a wide variety of severe corrosive environments. In mild environments, such as the atmosphere, sea water, neutral salts, and alkaline media, there is almost no attack to Inconel nuts. In more severe corrosive environments the combination of nickel and chromium provides resistance to oxidizing chemicals, whereas the high nickel and molybdenum contents supply resistance to nonoxidizing environments.

Inconel Nuts

Inconel Nuts

Inconel® nuts and lock nuts, like Inconel 600, 601,625, 686, 718 & 725 nuts, are a family of nickel-chromium-molybdenum alloys used for their high strength at elevated temperatures and good corrosion resistance. Because of its high thermal stability, Inconel can be used in service temperatures ranging from cryogenic to 2200°F (982°C). The high alloy content of Inconel nuts enable it to withstand a wide variety of severe corrosive environments. In mild environments, such as the atmosphere, sea water, neutral salts, and alkaline media, there is almost no attack to Inconel nuts. In more severe corrosive environments the combination of nickel and chromium provides resistance to oxidizing chemicals, whereas the high nickel and molybdenum contents supply resistance to nonoxidizing environments.



A Ni-Cr alloy known for its corrosion resistance and high temperature stability

  • Good corrosion resistance at elevated temperaturesInconel NUTS

  • High temperature stability up to 2200°F (982°C)

  • High strength material with excellent toughness at elevated temperatures

  • Inconel grades: 600, 601, 625, 686, 718, 725, X750

  • In-depth insight on Alloy 625 and Alloy 718

  • Datasheets available on Inconel 625 and Inconel 718

Inconel® nuts and lock nuts, like Inconel 600, 601,625, 686, 718 & 725 nuts, are a family of nickel-chromium-molybdenum alloys used for their high strength at elevated temperatures and good corrosion resistance. Because of its high thermal stability, Inconel can be used in service temperatures ranging from cryogenic to 2200°F (982°C). The high alloy content of Inconel nuts enable it to withstand a wide variety of severe corrosive environments. In mild environments, such as the atmosphere, sea water, neutral salts, and alkaline media, there is almost no attack to Inconel nuts. In more severe corrosive environments the combination of nickel and chromium provides resistance to oxidizing chemicals, whereas the high nickel and molybdenum contents supply resistance to nonoxidizing environments.

Because Inconel nuts offer a good balance of corrosion resistance, temperature stability, toughness and strength they are often a material of choice for chemical processing, aerospace, marine, electronics and oil & gas.

The most common grades of Inconel nickel alloy nuts are Inconel 625 and Inconel 718. Gain more insight on these two grades by accessing our Inconel 625 and Inconel 718 overviews or by contacting our engineering experts.

Resources: Inconel Torque Spec, Inconel 625, Inconel 718

Nut Styles: Hex Nuts, Lock Nuts


Common Inconel Nut Grades


Inconel 600 (2.4816)

Alloy 600, UNS N06600, is a nickel-chromium alloy with good carburization and oxidation resistance through 2000°F. The alloy has long been used in the heat treating industry and Inconel 600 has useful resistance to dry Cl2 and HCl gases at moderately elevated temperatures.

Inconel 600 Specifications: AMS 5540, AMS 5665, ASME SB 166, ASME SB 167, ASME SB 168, ASTM B 166, ASTM B 167, ASTM B 168, EN 2.4816, UNS N06600, Werkstoff 2.4816, ASTM F2281

Inconel 600

Ni

Cr

Fe

Mn

Cu

Si

C

S

Min %

72

14.0

6.0

-

-

-

-

-

Max %

-

17.0

10.00

1.00

0.50

0.50

0.15

0.015

Inconel 601 (2.4851)

Inconel 601, UNS N06601, is highly resistant to oxidation through 2200°F even under severe thermal cycling. The alloy has good high temperature strength, and retains its ductility after long service exposure. Inconel 601 alloy has good hot corrosion resistance under oxidizing conditions. 

Inconel 601 Specifications: AMS 5715, AMS 5870, ASME SB 167, ASME SB 168, ASTM B 167, ASTM B 168, EN 2.4851, UNS N06601, Werkstoff 2.4851, ASTM F2281

Inconel 601

Ni

Cr

Fe

Al

Mn

Cu

Si

C

S

Min %

58

21.0

-

1.0

-

-

-

-


Max %

63

25.0

Bal

1.7

1.00

1.00

0.50

0.10

0.015

Inconel 625 (2.4856)

Inconel 625, UNS N06625, EN 2.4856 is the workhorse of the Inconel family and is one of the most common grades. It exhibits high creep-rupture strength and is oxidation resistant to 1800°F (982°C). Inconel 625 has excellent resistance to hot seawater, scrubber environments and reducing acids and this alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. 

Inconel 625 Specifications: AMS 5666, AMS 5837, ASME SB 443 Gr 1, ASME SB 446 Gr 1, ASTM B 443 Gr 1, ASTM B 446 Gr 1, EN 2.4856, ISO 15156-3, NACE MR0175-3, UNS N06625, Werkstoff 2.4856, ASTM F467 (Nuts), ASTM F468 (Bolts, Screws, Studs)

Inconel 625

Ni

Cr

Mo

Fe

Nb+Ta

Co

Mn

Si

Al

Ti

C

P

S

Min %

-

20.0

8.0

-

3.15

8.0

-

-

-

-

-

-

-

Max %

Bal

23.0

10.0

5.0

4.15

1.0

0.5

0.5

0.4

0.40

0.10

0.015

0.015

Inconel 686 (2.4606)

Alloy 686, UNS N06686, is designed for outstanding corrosion resistance in a wide range of severe environments. The alloy is used in the most severe environments encountered in chemical processing, pollution control, pulp and paper production, and treatment of industrial and municipal waste. 

Inconel 686 Specifications: ASTM B 462, ASTM B 564 / ASME SB 564, ASTM B 574 / ASME B 574, DIN 17752, DIN 17753, DIN 17754

Inconel 686

Ni

Cr

Mo

Ti

W

Mn

Si

C

P

S

Fe

Min %

-

19.0

15.00

0.02

3.0

-

-

-

-

-

-

Max %

Bal

23.0

17.00

0.25

4.4

0.75

0.08

0.01

0.04

0.02

2.0

Inconel 718 (2.4668)

Inconel 718, UNS N07718, EN 2.4668, is the most common grade of the hardenable Inconels. This precipitation-hardened nickel-chromium alloy combines outstanding corrosion resistance and high strength at elevated temperatures. The alloy is a about 2x as strong as Inconel 625 having excellent creep-rupture strength at temperatures to 1300°F (700°C) and usable up to 1800°F (982°C). Inconel 718 is often used in gas turbines, rocket motors, spacecraft, nuclear reactors, pumps, and tooling. 

Inconel 718 Specifications: AMS 5596, AMS 5662, AMS 5663, AMS 5832, ASME Case 2222-1, ASME SFA 5.14, ASTM B 637, ASTM B 670, EN 2.4668, GE B50TF14, GE B50TF15, UNS N07718, Werkstoff 2.4668, ASTM F2281

Inconel 718

Ni+Co

Fe

Cr

Nb+Ta

Mo

Ti

Co

Al

Mn

Si

Cu

C

P

S

B

Min %

50

-

17.0

4.75

2.80

0.65

-

0.20

-

-

-

-

-

-

-

Max %

55

Bal

21.0

5.50

3.30

1.15

1.0

0.80

0.35

0.35

0.30

0.08

0.015

0.015

0.006

Inconel 725 

Alloy 725, UNS N07725, nickel-chromium-molybdenum-niobium age-hardenable alloy that has essentially the same corrosion resistance as Inconel 625, but with a strength of that is twice that of annealed Inconel 625. The strength of this alloy is developed by heat treatment to achieve high ductility and toughness. The alloy is resistant to hydrogen embrittlement and stress-corrosion cracking as well. 

Inconel 725

Ni+Co

Cr

Fe

Mo

Nb

Ti

Al

Mn

Si

C

P

S

Min %

55

19.0

-

7.00

2.75

1.00

-

-

-

-

-

-

Max %

59

22.5

Bal

9.50

4.00

1.70

0.35

0.35

0.20

0.03

0.015

0.010

Incone X750 (EN 2.4665)

Alloy X-750, UNS N07750, EN 2.4665,  is a precipitation hardened alloy known for its corrosion resistance and high temperature oxidation resistance up to temperatures of 1300°F.  This alloy is similar to Alloy 600 but made precipitation hadenable with  the addition of titanium and aluminium. 

Inconel X750 Specifications: ASTM B 637/ASME SB 637; ISO 9723-9725; SAE AMS 5667-5671 and 5747; EN 10269

Inconel 750

Ni

Cr

Fe

Nb+Ta

Mn

Co

Al

Si

Cu

C

S

Min %

70.0

14.0

5.0

0.70

-

-

0.40

-

-

-

-

Max %

-

17.0

9.0

12.0

1.00

1.00

1.00

0.50

0.50

0.08

0.01


Inconel Frequently Asked Question of the Week

Inconel 600 or 601 for High Temperature Oxidation Resistance
Q: For a high temperature oxidation-rich environment which would be better Inconel 600 or 601 bolts?
A: For this situation it really depends on the temperature range you are dealing with because both an Inconel 600 bolt and an Inconel 601 bolt offer good oxidation resistance. Inconel 600 can service up to 2000F where Inconel 601 can handle up to 2200F. If you temperatures aren’t that severe, I’d suggest A286 bolts for excellent oxidation resistance. An A286 bolt is known for its high strength, creep resistance and oxidation resistance up to 1300F.

 


Mechanical Data

ALLOY 600 - Tensile Data 


Temperature (°F)

Ultimate Tensile (ksi)

Yield Strength at

0.2% Offset (ksi)

Elongation %

Room Temp.

93.0

37. 0

-

1000

84.0

28.5


1200

65.0

26.5


1400

27.5

17.0


1600

15.0

9.0


1800

7.5

4.0




ALLOY 601 - Tensile Data


Temperature

(°F)

Ultimate Tensile (ksi)

Yield Strength at

0.2% Offset (ksi)

Elongation %

Room Temp.

100.0

54.0

45.0

1000

90.0

48.0

44.0

1200

60.0

41.0

45.0

1400

34.0

26.0

70.0

1600

18.0

15.0

120.0



ALLOY 625 - Tensile Data


Temperature

(°F)

Ultimate Tensile (ksi)

Yield Strength at

0.2% Offset (ksi)

Elongation %

Room Temp.

144.0

84.0

44.0

400

134.0

66.0

45.0

600

132.0

63.0

42.5

800

132.0

61.0

45.0

1000

130.0

61.0

48.0

1200

119.0

60.0

34.0

1400

78.0

59.0

59.0

1600

40.0

39.0

117.0



ALLOY 718 - Tensile Data

Temperature (°F)

Ultimate Tensile (ksi)

Yield Strength at

0.2% Offset (ksi)

Elongation %

Room Temp.

210.0

175.0

22.0

400

138.0

163.0

20.0

800

191.0

156.0

19.0

1000

185.0

155.0

18.0

1200

168.0

149.0

19.0

1400

111.0

110.0

27.0

 Inconel 718 Heat Treatment Strengths

Ultimate

Tensile

Strength

Specification

185ksi min

AMS 5662/5663

ASTM B637

220ksi min

AMS 5962


PRESSURE - TEMPERATURE RATINGS

FOR ALLOYS C276 / 625 / 825

Nominal Designation

Forgings

Castings


Plates

54Ni 16Mo 15Cr

8462 Gr N10276  


B575 Gr. N10276 (1),(2)

60Ni 22Cr9Mo 3.5Cb

B564GR N 08625 


B443 Gr. N06625 (3), (5)

42Ni 21.5Cr 3Mo 2.3Cu

8564 Gr N0S825


B424 Gr. N08825 (3),(7)

Working Pressures by Classes, psig

Temp F

150

300

400

600

900

1500

2500

20 to 100

290

750

1000

1500

2250

3750

6250

200

250

750

1000

1500

2250

3750

6250

300

230

730

370

1455

2185

3640

6070

400

200

700

930

1395

2095

3490

5820

500

170

565

885

1330

1995

3325

5540

600

140

605

805

1210

1815

3025

5040

650

125

530

785

1175

1765

2940

4905

700

110

570

755

1135

1705

2840

4730

750

95

530

710

1065

1595

2660

4430

800

80

510

675

1015

1525

2540

4230

850

65

485

650

975

1450

2435

4060

900

50

450

500

900

1350

2245

3745

950

35

385

515

775

1160

1930

3220

1000

20

365

485

725

1090

1820

3030

1050


360

480

720

1080

1800

3000

1100


325

430

645

965

1610

2685

1150


275

365

550

825

1370

2285

1200


205

275

410

615

1030

1715

1250


165

220

330

495

825

1370

1300


120

150

240

360

500

1000



Inconel Corrosion Data

Inconel NUTS


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