Nickel-Based Super Alloy - Alloy X - Properties and Applications by United Performance Metals

Topics Covered

Background
Hastelloy X Sheet and Coil
Chemical Composition of Hastelloy X
Resistance to Corrosion and Oxidation of Hastelloy X
Physical Properties of Hastelloy X
Thermal Conductivity of Hastelloy X
Electrical Resistivity of Hastelloy X
Mechanical Properties of Hastelloy X
Standards
Applications of Hastelloy X

Background

United Performance Metals is a leading supplier of specialty stainless steel and high temperature alloys. In business since 1982, we have experience serving the needs of customers in diverse markets including aerospace, aircraft, automotive, medical, food service, house-wares, and many others.

United Performance Metals stocks a comprehensive inventory of stainless steel sheet, stainless steel coil and stainless steel plate. We are also specialists in high temperature and cobalt alloys including Inconel 625, Inconel 718, A-286, 188 Alloy and L605.

In addition to our comprehensive inventory, we also have complete in-house processing capabilities including leveling, shearing, slitting and edging. When you call, you’ll talk to experienced people who know their business, and yours. Make your life a little easier.

Nickel Alloy - Hastelloy X

Hastelloy X is a nickel-based super alloy that possesses excellent resistance to corrosion. Additionally, it delivers strong strength characteristics at elevated temperatures-up to 2200 degrees Fahrenheit. Hastelloy X is well suited for forming and welding.

Chemical Composition of Hastelloy X

Typical chemical analysis of Hastelloy X.

Element
Percentage
Carbon
0.05 - 0.15
Manganese
1.00 max
Phosphorus
0.040 max
Sulfur
0.030 max
Silicon
1.00 max
Chromium
20.50 - 23.00
Nickel
Balance
Molybdenum
8.00 - 10.00
Iron
17.00 - 20.00
Titanium
0.15 max
Aluminum
0.50 max
Cobalt
0.50 - 2.50
Boron
0.01 max
Copper
0.50 max
Tungsten
020 - 1.00 max

Resistance to Corrosion and Oxidation of Hastelloy X

Hastelloy X has good resistance to oxidizing, reducing and neutral atmospheres encountered in furnace and jet engine operations up to 2200°F (1204°C). The alloy develops a protective, tenacious oxide film which does not spall off and, therefore, retains oxidation resistance at high temperatures.

Physical Properties of Hastelloy X

  • Density: 0.297 lb/in3 (8.22 g/cm3)
  • Specific Gravity: 8.22
  • Melting Range: 2300 - 2470°F (1260 - 1355°C)
  • Magnetic Permeability: < 1.002

Thermal Conductivity of Hastelloy X

The thermal conductivity at various temperatures for Hastelloy X are given in the following table.

Temperature Range
Co-Efficients
°C
°F
W/m.K
Btu.ft/ft2.hr.°F
21
70
9.1
5.23
93
200
11.0
6.33
260
500
14.1
8.17
593
1100
20.8
12.0
704
1300
22.9
13.2
816
1500
25.0
14.5
927
1700
27.2
15.7

Electrical Resistivity of Hastelloy X

Electrical resistivity values as a function of temperature for Hastelloy X are given in the following table.

Temperature Range
micro ohm-cm
°C
°F
21
70
115.8
200
392
120
400
752
123
500
1112
127
800
1472
128
1000
1832
129

Mechanical Properties of Hastelloy X

Typical short time cryogenic and elevated temperature tensile properties for Hastelloy X sheet and plate materials solution treated at 2150 to 2175°F (1177 to 1190°C) and rapidly cooled are shown below.

Temperature
0.2% Yield Strength
Ultimate Tensile Strength
Elongation Percent
°F
°C
psi
MPa
psi
MPa
-321
-196
-
-
150,200
1035
46
-108
-78
-
-
118,800
819
51
72
22
47,000
324
104,500
720
46
400
204
48,700
336
103,400
713
41
600
316
42,600
294
100,200
691
40
800
427
43,700
301
99,700
687
44
1000
538
41,500
286
94,000
648
45
1200
649
39,500
272
83,000
472
37
1400
760
37,800
261
63,100
435
37
1600
871
25,700
177
36,500
252
51
1800
982
16,000
110
22,500
155
45
2000
1093
8,000
55
13,000
90
40
2200
1204
3,700
26
5,400
37
31

Data shown are typical, and should not be construed as maximum or minimum values for specification or for final design. Data on any particular piece of material may vary from those shown herein.

Standards

United Performance Metals Hastelloy X is conforms to UNS designation N06002.

Applications of Hastelloy X

Hastelloy X is typically used for:

  • Gas turbine operations
  • Petrochemical
  • Structural components
  • Industrial furnace

For sizes and availability of Hastelloy X contact United Performance Metals.

Source: United Performance Metals

For more information on this source, please visit United Performance Metals

Comments

  1. Ramnik Thakkar Ramnik Thakkar India says:

    WHAT IS THE HARDNES AT MACHINING STAGE

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