Natural Steels

INCONEL 718 ASTM B637, B 670, B 906
UNS Number N07718
NACE MR-01-75

Other common names: Alloy 718, Haynes 718, Nicrofer 5219, Allvac 718, Altemp 718

Inconel 718 is a nickel-chromium-molybdenum alloy designed to resist a wide range of severely corrosive environments, pitting and crevice corrosion. This nickel steel alloy also displays exceptionally high yield, tensile, and creep-rupture properties at high temperatures. This nickel alloy is used from cryogenic temperatures up to long term service at 1200° F. One of the distinguishing features of Inconel 718’s composition is the addition of niobium to permit age hardening which allows annealing and welding without spontaneous hardening during heating and cooling. The addition of niobium acts with the molybdenum to stiffen the alloy’s matrix and provide high strength without a strengthening heat treatment. Other popular nickel-chromium alloys are age hardened through the addition of aluminum and titanium. This nickel steel alloy is readily fabricated and may be welded in either the annealed or precipitation (age) hardened condition. This superalloy is used in a variety of industries such as aerospace, chemical processing, marine engineering, pollution-control equipment, and nuclear reactors.

In what forms is Inconel 718 Available at Natural Steels ?

• Sheet
• Plate
• Bar
• Wire

What are the characteristics of Inconel 718

• Good mechanical properties – tensile, fatigue and creep-rupture
• Yield tensile strength, creep, and rupture strength properties are exceedingly high
• Highly resistant to chloride and sulfide stress corrosion cracking
• Resistant to aqueous corrosion and chloride ion stress corrosion cracking
• High temperature resistant
• Age-hardenable with a unique property of slow aging response that permits heating and cooling during annealing without the danger of cracking.
• Excellent welding characteristics, resistant to postweld age cracking

Chemical Composition, %

In what applications is Inconel 718 used

• Chemical processing
• Aerospace
• Liquid fuel rocket motor components
• Pollution-control equipment
• Nuclear reactors
• Cryogenic storage tanks
• Valves, fasteners, springs, mandrels, tubing hangers
• Well head completion equipment and blow out preventers (BOP’s)
• Gas turbine engine parts

ASTM Specifications

Mechanical Properties
Typical room temperature properties, 1800°F annealed condition

Inconel round bar specifications can vary depending on the type of Inconel and its intended use: 

Inconel 600 round bar

• This bar has a high melting point of 1413°C and is resistant to oxidation and corrosion. It can be used in nuclear power plants, heat treat furnaces, and gas turbine components. Specifications include: 
  • Size: 3–800 mm in diameter 
  • Length: Up to 6000 mm 
  • Minimum yield strength: 310 MPa 
  • Minimum tensile strength: 655 MPa 
  • Inconel 625 round bar
• This bar is used in marine applications, such as steam liner bellows, cable sheathing, and auxiliary propulsion motors. It has high strength values and can be polished, slit rolled, cold drawn, and more. Specifications include: 
  • Outer diameter: 32–250 mm
  • Minimum yield strength: 517 MPa 
  • Minimum tensile strength: 930 MPa 
    
    
    General Inconel round bar specifications
• These bars can be round, square, hex, bush, rectangle, or flat in form. They can be finished in black, bright polished, rough turned, NO.4 finish, matt finish, or BA finish. 

INCONEL Alloy 600 UNS Number N06600

Other common names: Alloy 600

Inconel 600 is a nickel-chromium alloy used for applications that require corrosion and high temperature resistance. This nickel alloy was designed for service temperatures from cryogenic to elevated temperatures in the range of 2000° F. It is non-magnetic, has excellent mechanical properties, and presents the desirable combination of high strength and good weldability under a wide range of temperatures. The high nickel content in Inconel 600 enables it to retain considerable resistance under reducing conditions, makes it resistant to corrosion by a number of organic and inorganic compounds, gives it excellent resistance to chloride-ion stress-corrosion cracking and also provides excellent resistance to alkaline solutions. Typical applications of this nickel alloy include the chemical, pulp and paper, aerospace, nuclear engineering and heat treating industries.

In what form is Inconel 600 Available at Natural Steels?

• Sheet
• Plate
• Bar
• Pipe & Tube (welded & seamless)
• Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
• Wire

What are the characteristics of Inconel 600?

• Resistant to a wide range of corrosive media.
• Virtually immune to chlorine ion stress corrosion cracking
• Non-magnetic
• Excellent mechanical properties
• High strength and good weldability under a wide range of temperatures

Chemical Composition, %

Fabrication with Inconel 600

Alloy 600 can be both hot formed and cold formed using typical processes. Hot working should be performed between 1600° F and 2250° F avoiding any work between1200-1600° F because the ductility decreases in this temperature range. Welding Alloy 600 can be achieved via shielded metal-arc welding, TIG, and MIG.

ASTM Specifications

Mechanical Properties
Typical room temperature Tensile Properties of Annealed Material

INCONEL Alloy 601 UNS Number N06601

Other common names: Alloy 601

Inconel 601 is a nickel-chromium alloy used for applications that require resistance to corrosion and heat. This nickel alloy stands out due to its resistance to high temperature oxidation, remaining highly resistant to oxidation through 2200° F. Alloy 601 develops a tightly adherent oxide scale which resists spalling even under conditions of severe thermal cycling. This nickel alloy has good high temperature strength, and retains its ductility after long service exposure. It has good resistance to aqueous corrosion, high mechanical strength, and is readily formed, machined and welded. Inconel 601’s properties make it a material of broad utility in fields like thermal processing, chemical processing, pollution control, aerospace, and power generation. However, alloy 601 is not suggested for use in strongly reducing, sulfur bearing environments.

In what form is Inconel 601 available at Natural Steels?

• Sheet
• Plate
• Bar
• Pipe & Tube (welded & seamless)
• Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)
• Wire

What are the characteristics of Inconel 601?

• Outstanding oxidation resistance to 2200° F
• Resists spalling even under severe thermal cycling conditions
• Highly resistant to carburization
• Good creep rupture strength
• Metallurgical stability

Chemical Composition, %

In what applications is Inconel 601 used?

• Chemical Processing
• Aerospace
• Heat treating industry
• Power generation
• Heat treating muffles and retorts
• Radiant tubes
• Catalyst support grids in nitric acid production
• Steam superheater tube supports

ASTM Specifications

Mechanical Properties
Typical room temperature Properties

ASTM B162 Nickel 200 CR Sheet & Plate

Size:

0.1 mm to 100 mm Thick

10 mm to 2500 mm width

Inconel 625 fasteners are made from a nickel-chromium-molybdenum alloy that offers excellent resistance to corrosion, oxidation, and high-temperature environments.
Key characteristics:
1. Excellent corrosion resistance: Resistant to pitting, crevice corrosion, and stress corrosion cracking.2. High-temperature strength: Exhibits good strength and resistance to creep deformation at high temperatures.3. Oxidation resistance: Resistant to oxidation and scaling at high temperatures.4. Weldability: Good weldability and fabricability.
Applications:
1. Aerospace: Used in aerospace applications, including engine components and fasteners.2. Chemical processing: Used in chemical processing applications, including reactors and heat exchangers.3. Power generation: Used in power generation applications, including nuclear and fossil fuel power plants.4. Marine: Used in marine applications, including seawater handling equipment.
Inconel 625 fasteners are suitable for use in demanding environments where corrosion, oxidation, and high temperatures are concerns.


The chemical composition of Inconel 625 (UNS N06625) is:
1. Nickel (Ni): 58.0% minimum2. Chromium (Cr): 20.0-23.0%3. Molybdenum (Mo): 8.0-10.0%4. Niobium (Nb): 3.15-4.15%5. Iron (Fe): 5.0% maximum6. Carbon (C): 0.10% maximum7. Manganese (Mn): 0.5% maximum8. Silicon (Si): 0.5% maximum9. Sulfur (S): 0.015% maximum10. Aluminum (Al): 0.4% maximum11. Titanium (Ti): 0.4% maximum
This composition provides Inconel 625 with its excellent resistance to corrosion, oxidation, and high-temperature environments.

Inconel 601 fasteners are made from a nickel-chromium-iron alloy that offers excellent resistance to high-temperature corrosion, oxidation, and carburization.
Key characteristics:
1. High-temperature resistance: Excellent resistance to oxidation and corrosion at high temperatures.2. Carburization resistance: Resistant to carburization, making it suitable for use in high-temperature environments.3. Nitriding resistance: Exhibits good resistance to nitriding.
Applications:
1. Heat treatment industry: Used in heat treatment fixtures, baskets, and trays.2. Power generation: Used in power generation applications, including gas turbines.3. Chemical processing: Used in chemical processing applications, including high-temperature reactors.4. Aerospace: Used in aerospace applications, including engine components.
Inconel 601 fasteners are suitable for use in demanding high-temperature environments where corrosion and oxidation are concerns.

The chemical composition of Inconel 601 (UNS N06601) is:
1. Nickel (Ni): 58.0-63.0%2. Chromium (Cr): 21.0-25.0%3. Iron (Fe): Balance4. Aluminum (Al): 1.0-1.7%5. Carbon (C): 0.10% maximum6. Manganese (Mn): 1.0% maximum7. Silicon (Si): 0.5% maximum8. Sulfur (S): 0.015% maximum
This composition provides Inconel 601 with its excellent resistance to high-temperature corrosion, oxidation, and carburization.

Inconel 825 fasteners are made from a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. They offer excellent resistance to corrosion, oxidation, and high-temperature environments.

Key characteristics:

1. Corrosion resistance: Resistant to sulfuric acid, phosphoric acid, and seawater.
2. High-temperature resistance: Suitable for use in high-temperature applications.
3. Strength: Exhibits high strength and durability.

Applications:
1. Chemical processing2. Oil and gas3. Power generation4. Marine engineering

Properties
1. Corrosion resistance: Inconel 825 fasteners offer excellent resistance to corrosion in a variety of environments, including sulfuric acid, phosphoric acid, and seawater.
2. High-temperature resistance: These fasteners can withstand high temperatures, making them suitable for use in applications where high heat is present.
3. Strength: Inconel 825 fasteners exhibit high strength and durability, making them suitable for use in demanding applications.

Applications
1. Chemical processing: Inconel 825 fasteners are used in chemical processing plants to handle corrosive chemicals and high-temperature processes.
2. Oil and gas: These fasteners are used in oil and gas applications, including drilling, production, and transportation.
3. Power generation: Inconel 825 fasteners are used in power generation plants, including nuclear, fossil fuel, and renewable energy applications.
4. Marine engineering: These fasteners are used in marine engineering applications, including seawater handling and offshore platforms.

Benefits
1. Long service life: Inconel 825 fasteners offer a long service life, reducing the need for frequent replacements.
2. Low maintenance: These fasteners require low maintenance, making them suitable for use in applications where downtime is costly.
3. High reliability: Inconel 825 fasteners offer high reliability, making them suitable for use in critical applications.

Inconel 825 fasteners are made from a nickel-iron-chromium alloy with additions of molybdenum, copper, and titanium. They offer excellent resistance to corrosion, oxidation, and high-temperature environments.

Key characteristics:

1. Corrosion resistance: Resistant to sulfuric acid, phosphoric acid, and seawater.
2. High-temperature resistance: Suitable for use in high-temperature applications.
3. Strength: Exhibits high strength and durability.

Applications:
1. Chemical processing2. Oil and gas3. Power generation4. Marine engineering

Properties
1. Corrosion resistance: Inconel 825 fasteners offer excellent resistance to corrosion in a variety of environments, including sulfuric acid, phosphoric acid, and seawater.
2. High-temperature resistance: These fasteners can withstand high temperatures, making them suitable for use in applications where high heat is present.
3. Strength: Inconel 825 fasteners exhibit high strength and durability, making them suitable for use in demanding applications.

Applications
1. Chemical processing: Inconel 825 fasteners are used in chemical processing plants to handle corrosive chemicals and high-temperature processes.
2. Oil and gas: These fasteners are used in oil and gas applications, including drilling, production, and transportation.
3. Power generation: Inconel 825 fasteners are used in power generation plants, including nuclear, fossil fuel, and renewable energy applications.
4. Marine engineering: These fasteners are used in marine engineering applications, including seawater handling and offshore platforms.

Benefits
1. Long service life: Inconel 825 fasteners offer a long service life, reducing the need for frequent replacements.
2. Low maintenance: These fasteners require low maintenance, making them suitable for use in applications where downtime is costly.
3. High reliability: Inconel 825 fasteners offer high reliability, making them suitable for use in critical applications.

Inconel 800 fasteners are made from a nickel-iron-chromium alloy that offers excellent resistance to corrosion, oxidation, and high-temperature environments.
Key characteristics:
1. Corrosion resistance: Resistant to oxidation and carburization in high-temperature environments.2. High-temperature strength: Exhibits good strength and resistance to creep deformation at high temperatures.3. Resistance to chloride stress corrosion cracking: Suitable for use in applications where chloride-induced stress corrosion cracking is a concern.
Applications:
1. Heat exchangers: Used in heat exchangers, such as those in power plants, chemical processing, and petrochemical industries.2. High-temperature processing: Used in high-temperature processing applications, such as furnace components, heat treatment fixtures, and chemical reactors.3. Power generation: Used in power generation applications, including nuclear and fossil fuel power plants.
Inconel 800 fasteners are suitable for use in demanding environments where high temperatures, corrosion, and oxidation are concerns.


The chemical composition of Inconel 800 (UNS N08800) is:
1. Nickel (Ni): 30.0-35.0%2. Chromium (Cr): 19.0-23.0%3. Iron (Fe): Balance (39.5% minimum)4. Carbon (C): 0.10% maximum5. Manganese (Mn): 1.5% maximum6. Silicon (Si): 1.0% maximum7. Sulfur (S): 0.015% maximum8. Aluminum (Al): 0.15-0.60%9. Titanium (Ti): 0.15-0.60%
This composition provides Inconel 800 with its excellent resistance to corrosion, oxidation, and high-temperature environments.

INCONEL Alloy 625 UNS Number N06625

Alloy 625

Inconel 625 is a corrosion and oxidation resistant nickel alloy that is used both for its high strength and outstanding aqueous corrosion resistance. Its outstanding strength and toughness is due to the addition of niobium which acts with the molybdenum to stiffen the alloy’s matrix. Alloy 625 has excellent fatigue strength and stress-corrosion cracking resistance to chloride ions. This nickel alloy has excellent weldability and is frequently used to weld AL-6XN. This alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Some typical applications Inconel 625 is used in are chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors.

In what form is Inconel 625 available at Natural Steels?

• Sheet
• Plate
• Bar
• Pipe & Tube (welded & seamless)

Chemical Composition, %

Fabrication with Inconel 625

Alloy 625 has excellent forming and welding characteristics. It may be forged or hot worked providing temperature is maintained in the range of about 1800-2150° F. Ideally, to control grain size, finish hot working operations should be performed at the lower end of the temperature range. Because of its good ductility, alloy 625 is also readily formed by cold working. However, the alloy does work-harden rapidly so intermediate annealing treatments may be needed for complex component forming operations. In order to restore the best balance of properties, all hot or cold worked parts should be annealed and rapidly cooled. This nickel alloy can be welded by both manual and automatic welding methods, including gas tungsten arc, gas metal arc, electron beam and resistance welding.

ASTM Specifications

Mechanical Properties
Representative Tensile Properties, bar, 1800° F anneal

Inconel Pipe 601 Grade

Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel Pipe 825 Grade

Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel Pipe 800 Grade

Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel Pipe 625 Grade

Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel Pipe 600 Grade

Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel Pipe 800H Grade and
Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel Pipe 625 Grade and Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel Pipe 625 

Inconel 625 Seamless Pipe 
Seamless Pipe Inconel 625 

Inconel Pipe 601 Grade and Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel 601 Pipes

Inconel Pipe 825 Grade

Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel Pipe 601 Grade and Size ranging from: 6 mm OD to 914.4 mm OD and 1 mm to 50 mm thick. 

Inconel Seamless Pipe 601, 
Inconel Pipe 601 Seamless, 
Seamless Pipe Inconel 601, 

Inconel Pipe 800 Grade 
Size ranging from: 6 mm OD to 914.4 mm OD and 0.3 mm to 50 mm thick.

Inconel Pipe 600 Grade and Size ranging from: 6 mm OD to 914.4 mm OD and 1 mm to 50 mm thick. 

Inconel Seamless Pipe 600, 
Inconel 600 Seamless Pipe, 

Inconel Pipe 800H Grade and Size ranging from: 6 mm OD to 508 mm OD and 1 mm to 50 mm thick. 

Inconel 800H Seamless Pipe, 
Seamless Pipe Inconel 800H 

STANDARDANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 ,JIS,DIN,BS4504,SABS1123,EN1092-1, UNI,AS2129,GOST-12820

DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673

B.S : BS4504 , BS4504, BS1560, BS10

PRESSURE CLASSClass 150, Class 300, Class 400, Class 600, Class 900, Class1500, Class 2500 | PN6, PN10, PN16, PN25, PN40, PN64 etc.

SIZE:15 NB to 750 NB, 1/2-78 inch (DN15-DN2000)

CONNECTION TYPE:Raised Face, Flat Face, Ring Type Joint, Lap-Joint Face, Large Male-Female, Small Male-Female, Large Tongue & Groove, Small Tongue & Groove.

MATERIAL:Stainless Steel Forged Flanges: ASTM A182 F202, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 316LN, 310S, 317L, 321, 410, 420, 440C, 202. F904L
Carbon Steel Forged Flanges: A-350 LF2 LF3, A105 
Duplex Steel Forged Flanges: ASTM / ASME SA 182 F 44 , F 45 , F51 , F 53 , F 55 , F 60 , F 61.
Alloy Steel Forged Flanges: ASTM A182 F1, F5, F9, F11, F22, F91
Special Alloy Forged Flanges: Duplex, Super Duplex, Nickel Alloys
Nickel Alloy Forged Flanges: Cupro Nickel (90/10, 70/30, 66/30/2/2), Hastelloy (C-4, C-22, C276, B-2), Nickel (200 / 201 / 205), Monel 400 & K500), Inconel (600, 601, 625 & 825), Incolloy (800, 800H), Alloy 20, Duplex Steel, SS 904L, Titanium (1 & 2) Etc.

TESTING FACILITIES:* Chemical Analysis 
* Mechanical Test 
* Metallography Test
* Hydrostatic 
* Corrosion Test 
* Ultrasonic Test
* Radiography 
* Miscellaneous Test

Inconel 600 Circle Ring
Inconel 600 Ring
Inconel 600 Circle


Size ranging from: 0.30 mm to 50mm thick

Inconel Circle Ring 601 Grade and Size ranging from: 0.3 mm thick to 50mm thick to as required.

OD: 25mm to 1500mm

IInconel 625 circles are made from a nickel-chromium-molybdenum alloy that offers excellent resistance to corrosion, oxidation, and high-temperature environments.

Key characteristics:
1. Corrosion resistance: Excellent resistance to pitting, crevice corrosion, and stress corrosion cracking.
2. High-temperature strength: Good strength and resistance to creep deformation at high temperatures.
3. Oxidation resistance: Resistant to oxidation and scaling at high temperatures.

Applications:
1. Flanges: Used in flange manufacturing for high-temperature and corrosive applications.
2. Gaskets: Used in gasket manufacturing for high-temperature and corrosive applications.
3. High-temperature equipment: Used in equipment operating in high-temperature environments.

Inconel 625 circles are suitable for use in demanding environments where corrosion, oxidation, and high temperatures are concerns.


The chemical composition of Inconel 625 (UNS N06625) is:
1. Nickel (Ni): 58.0% minimum
2. Chromium (Cr): 20.0-23.0%
3. Molybdenum (Mo): 8.0-10.0%
4. Niobium (Nb): 3.15-4.15%
5. Iron (Fe): 5.0% maximum
6. Carbon (C): 0.10% maximum
7. Manganese (Mn): 0.5% maximum
8. Silicon (Si): 0.5% maximum
9. Sulfur (S): 0.015% maximum
10. Aluminum (Al): 0.4% maximum
11. Titanium (Ti): 0.4% maximum


This composition provides Inconel 625 with its excellent resistance to corrosion, oxidation, and high-temperature environments.

Inconel Rod 800H Grade and Size ranging from: 0.1 mm OD to 100 mm OD

Inconel Rod 625 Grade and Size ranging from: 0.1 mm OD to 100 mm OD

Inconel Rod 600 Grade and Size ranging from: 0.1 mm OD to 100 mm OD

Inconel Rod 601 Grade and Size ranging from: 0.1 mm OD to 100 mm OD

Inconel Rod 800 Grade and Size ranging from: 0.1 mm OD to 100 mm OD

Inconel Rod 825 Grade and Size ranging from: 0.1 mm OD to 100 mm OD

Inconel 601 Reducer and Size ranging from: Seamless Butt Weld Fittings: 1/2? � 10?, Welded Butt Weld Fittings: 1/2? � 48?

Inconel 601 Reducer and Size ranging from: Seamless Butt Weld Fittings: 12? � 10?, Welded Butt Weld Fittings: 12? � 48?

Inconel SheetPlate 800H Grade and Size ranging from: 12" OD to 36"

Inconel SheetPlate 825 Grade and Size ranging from: 12" OD to 36"

Inconel SheetPlate 600 Grade and Size ranging from: 12" OD to 36"

Inconel SheetPlate 601 Grade and Size ranging from: 12" OD to 36"