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Inconel Alloys
Alloy 718 is a high strength nickel base superalloy used for cryogenic temperatures up to long term service at 1200°F. The alloy is readily fabricated and may be welded in either the annealed or precipitation (age) hardened condition. Anneal 1700 -1850°F, air cool or faster. Age 1325°F 8 hours, furnace cool to hold at 1150°F, for a total aging time of 18 hours, air cool. Alloy 718 will show a contraction of 0.0008 inch/inch after precipitation hardening
Specifications :
UNS N07718, Werkstoff 2.4668, EN 2.4668
ASTM: B 637, B 670
ASME: SFA-5.14,ASME Case 2222-1
AMS 5596,AMS 5662, AMS 5663, AMS 5832
GE B50TF14, GE B50TF15
718 Alloy Inventor :
Plate, Sheet, Coil,Bar & Welding Products
Common Trade Names :
Alloy 718, Inconel 718, Nickel 718
|
|
Ni+Co |
Cr |
Cb+Tap |
Mo |
Ti |
Al |
Co |
C |
Mn |
Si |
P |
S |
B |
Cu |
Fe |
MIN |
50.0 |
17.00 |
4.75 |
2.80 |
0.65 |
0.20 |
- |
- |
- |
- |
- |
- |
- |
- |
- |
MAX |
55.0 |
21.00 |
5.50 |
3.30 |
1.15 |
080 |
1.00 |
0.08 |
.035 |
0.35 |
0.015 |
0.015 |
0.006 |
0.30 |
Balance |
Features :
- Good mechanical properties: tensile, fatigue and creep-rupture
- Excellent welding characteristics, resistant to postweld age cracking
- Oxidation resistant throughout its useful temperature range
Applications :
- Gas turbine engine parts
- Liquid fuel rocket motor components
- Springs, fasteners
- Cryogenic tanks
Density: 0.296 lb/in3 annealed, 0.274 lb/in3 aged
Melting Point: 2410 - 2540°F
Temperature, °F |
-320 |
70 |
200 |
400 |
600 |
1000 |
1200 |
1400 |
Coefficient* of Thermal Expansion, in/in°F x 10-6 |
5.9 |
- |
7.3 |
7.5 |
7.7 |
8.1 |
8.4 |
8.9 |
Thermal Conductivity
Btu • ft/ft2 • hr • °F |
- |
6.4 |
7.2 |
8.2 |
9.3 |
11.3 |
12.3 |
13.3 |
Modulus of Elasticity, Dynamic psi x 106 |
- |
29 |
28 |
27 |
26 |
25 |
24 |
22 |
Mechanical Properties :
Typical Room Temperature Properties, 1800°F Annealed Condition
Ultimate tensile strength, ksi |
135 |
0.2% yield strength, ksi |
70 |
Elongation, % |
45 |
Hardness, Rockwell C |
100 |
Average Tensile Properties, ½" Bar Annealed 1800°F, Aged 1325/1150°F
Temperature, °F |
70 |
400 |
800 |
1000 |
1200 |
1400 |
Ultimate Tensile Strength, ksi |
210 |
198 |
191 |
185 |
168 |
111 |
0.2% Yield Strength, ksi |
175 |
163 |
156 |
155 |
149 |
110 |
Elongation, % |
22 |
20 |
19 |
18 |
19 |
27 |
Hardness, Rockwell C |
42 - 44 |
- |
- |
40 - 41 |
40 - 41 |
33 - 34 |
Typical Stress Rupture, Bar, Annealed 1800°F, Aged 1325/1150°F
Temperature, °F |
1100 |
1200 |
1300 |
1400 |
100 Hours, ksi |
170 |
110 |
75 |
44 |
1,000 Hours, ksi |
130 |
85 |
55 |
25 |
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Inconel 750
Alloy X-750 is a nickel chromium alloy similar to Alloy 600 but made precipitation hardenable by additions of aluminum and titanium. It has goodresistance to corrosion and oxidation along with high tensile and creep-rupture properties at temperatures to 1300°F. Its excellent relaxation resistance is useful for high temperature springs and bolts. Used in gas turbines, rocket engines, nuclear reactors, pressure vessels, tooling, and aircraft structures.
Common Trade Names :
Inconel 625, Alloy 625, Nickel 625
Inventory :
X-750 Sheet
Specifications :
UNS: N07750 W. Nr./EN: 2.4669 ASTM: B 637 NACE: MR0175 ISO: 15156-3
|
Ni |
Cr |
C |
Mn |
Cu |
Si |
S |
Fe |
MIN |
70.00 |
14.00 |
-- |
-- |
-- |
-- |
-- |
5.00 |
MAX |
-- |
17.00 |
0.08 |
1.00 |
0.50 |
0.50 |
0.01 |
9.00 |
Features :
- Good mechanical properties at high temperatures
- Good formability
- Good oxidation resistance
Applications :
- Oil and gas production
- Gas turbine engines
- Nuclear engineering
Density: 0.299 lb/in3
Melting Point: 2540- 2600°F
Poisson's Ratio: 0.30
Electrical Resistivity: 731 Ohm-circ mil/ft
Temperature, °F |
68 |
392 |
752 |
800 |
1000 |
1112 |
Coefficient* of Thermal Expansion, in/in°F x 10-6 |
- |
7.1 |
7.7 |
9.2 |
10.1 |
8.3 |
Thermal Conductivity
Btu • ft/ft2 • hr • °F |
6.8 |
-- |
-- |
-- |
-- |
-- |
Modulus of Elasticity, Dynamic psi x 106 |
32.1 |
30.5 |
28.6 |
23.9 |
20.3 |
26.2 |
* 70°F to indicated temperature.
Minimum Specified Properties, ASTM A 240
Ultimate Tensile Strength, ksi |
120 |
0.2% Yield Strength, ksi |
60 |
Elongation, % |
30 |
Hardness MAX, Brinell |
-- |
Typical Tensile & Impact Properties, Bar ¾ equalized and precipitation treated hot-rolled, 1625°F 24 hours, AC + 1300°F for 20 hours, AC
Temperature,°F |
600 |
800 |
1000 |
1100 |
1200 |
1350 |
1500 |
Ultimate Tensile Strength, ksi |
169.0 |
166.0 |
163.5 |
159.0 |
143.0 |
107.0 |
65.4 |
0.2% Yield Strength, ksi |
116.5 |
114.0 |
115.0 |
112.0 |
110.0 |
98.3 |
64.7 |
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Inconel 600
600 alloy is a nickel-base alloy with excellent carburization, and good oxidation resistance at elevated temperatures. The alloy has long been used in the heat treating industry for many of the same applications as RA330®. 600 alloy has useful resistance to dry Cl2 and HCl gases at moderately elevated temperatures. 600 alloy is not suggested for use at red heat when sulfur is present due to elevated nickel quantities.
Grades 200 and 201 nickel are normally preferred for handling concentrated, high temperature caustic. However, when sulfur compounds are present as well, or for ammonium hydroxide service, 600 alloy is suggested. 600 alloy is subject to stress corrosion cracking in hot, concentrated caustic alkalies. To avoid stress corrosion cracking, the 600 alloy fabrication should be fully stress relieved prior to use. A minimum treatment of 1650°F for 1 hour is suggested, but 1800-1850°F for 1 hour preferred.
Specifications :
UNS N06600, Werkstoff 2.4816, EN 2.4816
AMS 5540, AMS 5665
ASTM B 166, ASTM B 167
ASME SB-166, ASME SB-167,
ASME SB-168
Inventory :
Alloy 600 Plate, Alloy 600 Sheet, Alloy 600 Coil, Alloy 600 Bar, Alloy 600 Welding Products
Common Trade Names :
Alloy 600, Inconel 600, Nickel 600
|
Ni |
Cr |
C |
Mn |
Cu |
Si |
S |
Fe |
MIN |
72.00 |
14.00 |
-- |
-- |
-- |
-- |
-- |
6.00 |
MAX |
|
17.00 |
0.15 |
1.00 |
0.50 |
0.50 |
0.015 |
10.00 |
Features :
- Virtually immune to chloride ion stress corrosion cracking
- Good caustic corrosion resistance
- Resistant to dry Cl2 to about 1000°F
- Oxidation resistance to 2000°F
- Carburization resistance
Applications :
- Heat treating muffles and retorts
- Vacuum furnace fixtures
- Chlorination equipment to 1000°F
- Titanium dioxide plants
Density: 0.304 lb/in3
Melting Point: 2470- 2575°F
Poisson's Ratio: 0.29
Electrical Resistivity: 620 Ohm-circ mil/ft
Temperature, °F |
70 |
1000 |
1200 |
1400 |
1600 |
2000 |
Coefficient* of Thermal Expansion, in/in°F x 10-6 |
- |
8.4 |
8.6 |
8.7 |
9.1 |
9.3 |
Thermal Conductivity
Btu • ft/ft2 • hr • °F |
8.6 |
13.2 |
14.3 |
13.0 |
16.7 |
- |
Modulus of Elasticity, Dynamic psi x 106 |
30.0 |
25.6 |
24.5 |
23.6 |
22.2 |
20.4 |
* 70°F to indicated temperature.
Temperature,°F |
70 |
1000 |
1200 |
1400 |
1600 |
1800 |
Ultimate Tensile Strength, ksi |
93 |
84 |
65 |
27.5 |
15 |
7.5 |
0.2% Yield Strength, ksi |
37 |
28.5 |
26.5 |
17 |
9.0 |
4.0 |
Charpy Impact V-notch, ft-lbs |
45 |
47 |
39 |
46 |
80 |
118 |
Static Corrosion in Molten Caustic Soda :
Corrosion Rate, Mils Per Year
Temperature, °F |
750 |
932 |
1076 |
1256 |
Alloy 201 |
0.9 |
1.3 |
2.5 |
37.8 |
Alloy 400 |
1.8 |
5.1 |
17.6 |
- |
Alloy 600 |
1.1 |
2.4 |
5.1 |
66.4 |
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Inconel 625
Alloy 625 is used both for its high strength and outstanding aqueous corrosion resistance. The strength of alloy 625 is primarily a solid solution effect from molybdenum and columbium. Alloy 625 has excellent weldability and is frequently used to weld AL-6XN® alloy. Matching filler metals are also used to join dissimilar metals.
Specifications :
UNS N06625, Werkstoff 2.4856, EN 2.4856ASTM B 443 Gr 1, ASTM B 446 Gr 1ASME SB-443 Gr 1, ASME SB-446 Gr 1, ASME SFA-5.14, ASME Sect. IX P No. 43NACE MR0175-3, ISO 15156-3AMS 5599, ASM 5666, ASM 5837
Inventory :
Alloy 625 Plate, Alloy 625 Sheet, Alloy 625 Coil, Alloy 625 Bar, Alloy 625 Welding Products
Common Trade Names :
Inconel 625, Alloy 625, Nickel 625
|
Cr |
Ni |
Mo |
Co |
Cb+Ta |
Al |
Ti |
C |
Fe |
Mn |
Si |
P |
S |
MIN |
20.0 |
- |
8.0 |
- |
3.15 |
- |
- |
- |
- |
- |
- |
- |
- |
MAX |
23.0 |
Balance |
10.0 |
1.0 |
4.15 |
0.4 |
0.4 |
0.1 |
5.0 |
0.5 |
0.5 |
0.015 |
0.015 |
Features :
- High creep-rupture strength
- Oxidation resistant to 1800°F
- Good fatigue resistance
- Excellent weldability
- Outstanding resistance to chloride pitting and crevice corrosion
- Immune to chloride ion stress corrosion cracking
- Resistant to seawater under both flowing and stagnant conditions and under fouling
Applications :
- Aircraft ducting systems
- Jet engine exhaust systems
- Engine thrust-reverser systems
- Bellows and expansion joints
- Turbine shroud rings
- Flare stacks
- Seawater components
- Chemical process equipment handling mixed acids both oxidizing and reducing.
Density: 0.305 lb/in3
Melting Point: 2350-2460°F
Temperature, °F |
70 |
400 |
600 |
800 |
1000 |
1200 |
1400 |
1600 |
Coefficient* of Thermal Expansion, in/in°F x 10-6 |
- |
7.3 |
7.4 |
7.6 |
7.8 |
8.2 |
8.5 |
8.8 |
Thermal Conductivity
Btu • ft/ft2 • hr • °F |
5.7 |
7.2 |
8.2 |
9.1 |
10.1 |
11.0 |
12.0 |
13.2 |
Modulus of Elasticity, Dynamic psi x 106 |
30 |
28 |
28 |
27 |
26 |
24 |
23 |
- |
* 70°F to indicated temperature.
Representative Tensile Properties, Bar
Temperature,°F |
70 |
400 |
600 |
800 |
1000 |
1200 |
1400 |
1600 |
Ultimate Tensile Strength, ksi |
144 |
134 |
132 |
132 |
130 |
119 |
78 |
40 |
0.2% Yield Strength, ksi |
84 |
66 |
63 |
61 |
61 |
60 |
59 |
39 |
Elongation, % |
44 |
45 |
42.5 |
45 |
48 |
34 |
59 |
117 |
Typical Rupture Strength Bar, Stress to Rupture at Indicated Time
Temperature, °F |
1200 |
1300 |
1400 |
100 Hours, ksi |
59 |
34 |
18 |
1,000 Hours, ksi |
43 |
23 |
12 |
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Inconel 825
These inconel 825, alloy 825 and incoloy 825 available in various forms like seamless , bar, wire, sheet, plate,, round bar, like inconel 825 etc.
Wide range of alloy 825 is round bar.
Chemical Analysis of ALLOY 825 (UNS N08825) :
Common Names : Incoloy 825®, Nickelvac® 825, Nicrofer® 4221
C |
MN |
P |
S |
Si |
Cr |
Ni |
Mo |
Cu |
Co |
Cb+Ta |
Ti |
Al |
Fe |
Other |
Other |
.05 max |
1.0 max |
|
.03 max |
.5 max |
19.5 – 23.5 |
38.0 – 46.0 |
2.5 – 3.5 |
1.5 – 3.0 |
|
|
0.6 1.2 |
0.2 max |
22.0 min |
|
|
Specifications :
Inconel 825 Sheet / Plate |
Inconel 825 Round Bar |
Inconel 825 Pipe |
Inconel 825 Tube |
Inconel 825 Fittings |
Inconel 825 Forgings |
ASME SB-424 |
ASME SB-425 |
ASME SB-423 ASME SB-829 ASME SB-705 ASME SB-775 |
ASME SB-163 ASME SB-704 ASME SB-751 |
ASME SB-366 |
ASME SB-564 |
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