Prashaant Steel & Alloys

A nickel-chromium alloy with good strength and excellent resistance to oxidation and carburization in high-temperature atmospheres. It also resists corrosion by many aqueous environments. The alloy maintains a stable, austenitic structure during prolonged exposure to high temperatures. Used for process piping, heat exchangers, carburizing equipment, heating-element sheathing and nuclear steam-generator tubing.

STANDARD PRODUCT FORMS
Pipe, tube, sheet, strip, plate, round bar, flat bar, forgingstock, hexagon and wire.

MAJOR SPECIFICATIONS
UNS N08800
BS 3072 – 3076 (NA15)
ASTM B 163, A 240, B 366,
B 407 – B 409, A 480, B 514,
B 515, B 564, B 751,
B 775, B 829
DIN 470
Werkstoff Nr. 1.4876
VdTÜV 412
ASME SB-163, SA-240,
SB-366, SB-407 – SB-409,
SA-480, SB-514, SB-515,
SB-564, SB-751, SB-775,
SB-829
ASME Code Cases 1325,
1949, 2339, N-20
SAE AMS 5766, 5871
NACE MR-0175/ISO 15156
ISO 9723 – 9725, 6207, 6208

LIMITING CHEMICAL COMPOSITION, %
Ni.......30.0 – 35.0
Fe..........39.5 min.
Cr......19.0 – 23.0
C...........0.10 max.
Mn........1.50 max.
S........ 0.015 max.
Si............ 1.0 max.
Cu........0.75 max.
Al.......0.15 – 0.60
Ti.......0.15 – 0.60
PHYSICAL CONSTANTS AND THERMAL PROPERTIES
Density, Ib/in3(g/cm3)............................................0.287 (7.94)
Melting Range, °F (°C)..............2475 – 2525(1357 – 1385)
Specific Heat, Btu/lb•°F(J/kg•°C)......................... 0.11 (460)
Curie Temperature, °F(°C)....................................-175 (-115)
Permeability at 200 Oersted (15.9kA/m).....................1.014
Coefficient of Expansion, 10-6 in/in•°F(μm/m•°C)
70-200°F (20-100°C)...................... 7.9(14.4)
Thermal ConductivityA, Btu•in/ft2•h•°F(W/m•°C)........80 (11.5)
Electrical ResistivityA, ohm•circ mil/ft(μΩ•m)....... 595 (0.989)
TYPICAL MECHANICAL PROPERTIES

Understanding Incoloy A-286: A Comprehensive Guide to R Pin Pins with International Standards and Equivalent Grades

Introduction:
Incoloy A-286 is a high-strength, corrosion-resistant alloy known for its exceptional performance in high-temperature applications. Among its various applications, R pin pins crafted from Incoloy A-286 offer robust solutions for critical industries like aerospace, automotive, and marine engineering. This article delves into the properties, international standards, equivalent grades, and keywords associated with Incoloy A-286 R pin pins.

Properties of Incoloy A-286:
Incoloy A-286 boasts remarkable properties making it ideal for R pin pin manufacturing:
High Strength: With a tensile strength of up to 140 ksi (965 MPa), Incoloy A-286 ensures reliable performance under extreme conditions.
Corrosion Resistance: Its composition, featuring nickel, chromium, and molybdenum, imparts excellent resistance to corrosion, even in harsh environments.
High Temperature Stability: Incoloy A-286 maintains its mechanical properties at elevated temperatures, making it suitable for high-heat applications.
Oxidation Resistance: The alloy exhibits superior resistance to oxidation, ensuring longevity in demanding operational settings.

International Standards for Incoloy A-286:
Incoloy A-286 conforms to various international standards, ensuring consistency and quality across different markets. Key standards include:
ASTM Standards: ASTM A638/A638M outlines the requirements for precipitation-hardening stainless and heat-resisting steel bars, including Incoloy A-286.
AMS Specifications: AMS 5731, AMS 5732, and AMS 5737 specify the requirements for Incoloy A-286 in the form of bars, forgings, and wire.
EN Standards: EN 1.4980 and EN 1.4944 provide European norms for the chemical composition and mechanical properties of Incoloy A-286.
ISO Standards: ISO 15156 is applicable for the use of Incoloy A-286 in the oil and gas industry, ensuring compatibility and reliability in corrosive environments.

Equivalent Grades of Incoloy A-286:In addition to its primary designation, Incoloy A-286 is known by equivalent grades across different standards. Some common equivalents include:
UNS S66286: This is the unified numbering system designation for Incoloy A-286, recognized internationally.
W.Nr. 1.4980: Incoloy A-286 is also identified by its Werkstoff Number, providing a standardized reference in European systems.
X6NiCrTiMoVB25-15-2: This designation is utilized in some European specifications, reflecting the alloy's chemical composition.

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Incoloy A-286
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ASTM standards
AMS specifications
EN standards
ISO standards

Conclusion:
Incoloy A-286 R pin pins stand out as durable, high-performance components, thanks to their exceptional properties and adherence to international standards. By understanding its composition, properties, and equivalents, industries can make informed decisions regarding the use of Incoloy A-286 for critical applications, ensuring reliability and longevity in demanding environments

INCOLOY® alloy 890 (UNS N08890) is the latest addition to the INCOLOY alloy family of heat-resistant alloys. Alloy 890 joins existing INCOLOY products in offering high strength along with excellent resistance to oxidation, carburization and sulfidation at temperatures up to 2200°F (1200°C). Alloy 890 offers the high chromium content of alloy 803 along with enhanced properties from additions of molybdenum, silicon and niobium. The primary application for alloy 890 is tubes for ethylene pyrolysis furnaces.

STANDARD PRODUCT FORMS
Smooth bore tubes; Internally finned tubes

MAJOR SPECIFICATIONS
UNS N08890
ASTM B407, 408, 409

LIMITING CHEMICAL COMPOSITION, %
Ni....... 40.0 - 45.0
Cr......23.5 – 28.5
Fe............ Balance
Mo.......... 1.0 - 2.0
Si............ 1.0 - 2.0
Nb.......... 0.2 - 1.0
Ta......0.10 – 0.60
Ti....... 0.15 - 0.60
Al.......0.05 – 0.60
C........0.06 – 0.14
Mn.......... 1.5 max.
Cu........0.75 max.
P...........0.03 max.
S........ 0.015 max.

PHYSICAL CONSTANTS AND THERMAL PROPERTIES
Density,Ib/in3.........................................................................0.287
g/cm3..........................................................................7.94
Coefficient of Expansion, 10-6 in/in•°F(μm/m•°C)
70-200°F (21- 100°C)................8.02(14.47)
70-600°F (21- 300°C)................8.43(15.11)
70-1000°F (21- 600°C)..............8.94(16.40)
Thermal Conductivity, Btu • in/ft2•h•°F........................... 550
W/m • °C.......................................... 79.3
Electrical Resistivity, ohm •circmil/ft.......................... 212.47
μΩ•cm..............................................1033
Modulus of Elasticity*, 106 psi(GPa).................28.3 (195.1)
Shear Modulus*, 106 psi(GPa)............................. 10.7 (73.8)
Poisson’sRatio*....................................................................0.322
Melting Range, °F (°C)..............2388 – 2522(1309 – 1383)
TYPICAL MECHANICAL PROPERTIES

Exploring the Excellence of Incoloy 800 R Pin: International Standards and Equivalent Grades

Incoloy 800 R, a high-performance nickel-iron-chromium alloy, stands out as a formidable material in various industrial applications, thanks to its exceptional properties and robust structure. Among its myriad uses, the Incoloy 800 R Pin serves as a crucial component in demanding environments where corrosion resistance, high-temperature strength, and structural integrity are paramount. 
Key Features of Incoloy 800 R Pin:
Corrosion Resistance: Incoloy 800 R demonstrates superb resistance to oxidation, carburization, and nitridation, making it ideal for applications in aggressive environments.
High-Temperature Strength: With a high nickel content and solid solution strengthening, this alloy maintains its mechanical properties even at elevated temperatures, ensuring reliable performance in extreme conditions.
Excellent Weldability: Incoloy 800 R offers excellent weldability, facilitating ease of fabrication and assembly in various industrial settings.
Thermal Stability: Its remarkable thermal stability enables sustained performance under fluctuating temperature regimes, essential for critical operations.

International Standards for Incoloy 800 R Pin:
Incoloy 800 R Pin adheres to stringent international standards to ensure quality, reliability, and compatibility across global markets. Some of the notable standards include:
ASTM B408: This standard specifies the requirements for nickel-iron-chromium alloys, including Incoloy 800 R, in the form of rod and bar for high-temperature service.
AMS 5766: It outlines the specifications for nickel alloy, corrosion, and heat-resistant bars, forgings, and rings, including Incoloy 800 R, for use in high-temperature applications.
EN 1.4876: The European standard for nickel-based alloys includes Incoloy 800 R, ensuring conformity with European regulatory requirements.
UNS N08810/N08811: These unified numbering system designations designate the chemical composition of Incoloy 800 R, providing a universally recognized classification for this alloy.

Equivalent Grades of Incoloy 800 R Pin:
Incoloy 800 R Pin offers compatibility with equivalent grades, allowing for seamless interchangeability and versatility in various applications. Some equivalent grades include:
Alloy 800 (UNS N08800): Known for its similar composition and properties, Alloy 800 serves as a viable alternative to Incoloy 800 R in certain applications.
Incoloy 800 H (UNS N08810): While closely related, Incoloy 800 H exhibits higher creep and rupture strength compared to Incoloy 800 R, suitable for applications requiring enhanced elevated temperature properties.
Incoloy 800 HT (UNS N08811): This variant of Incoloy 800 offers improved creep and stress rupture characteristics, making it suitable for high-temperature applications demanding superior mechanical performance.Significance Across Industries:

Incoloy 800 R Pins find widespread use across diverse industries, including:
Chemical Processing: Incoloy 800 R Pins excel in corrosive chemical environments, making them indispensable in chemical processing equipment such as reactors, vessels, and piping systems.
Power Generation: In power plants, where high temperatures and corrosive conditions prevail, Incoloy 800 R Pins ensure reliable performance in components like boiler systems, heat exchangers, and turbine parts.
Oil and Gas: Incoloy 800 R Pins withstand the harsh conditions encountered in oil and gas exploration, refining, and transportation, contributing to the reliability and longevity of critical equipment.
Aerospace: The high-temperature strength and corrosion resistance of Incoloy 800 R Pins make them suitable for aerospace applications, including gas turbine engines, exhaust systems, and structural components.

Alloy A286 Pipe is a high-strength, corrosion-resistant alloy that offers exceptional durability and thermal stability. This alloy is widely used in various industries, including aerospace, power generation, and chemical processing.
Grades and Standards of Alloy A286 Pipe
Alloy A286 Pipe is a specific grade of iron-nickel-chromium alloy, which is available in various forms, including pipe, tube, and fittings. Alloy A286 Pipe meets various international standards, including:
- ASTM A453 (Standard Specification for High-Temperature Bolting)- AMS 5731 (Alloy A286, Pipe and Tube)- DIN 1.4980 (Alloy A286)- ISO 4955 (Alloy A286)
Equivalent Grades of Alloy A286 Pipe
Alloy A286 Pipe is also known by various equivalent grades, including:
- UNS S66286- EN 1.4980- BS A286- JIS NCF 286- ASME SA453 (High-Temperature Bolting)
Applications of Alloy A286 Pipe
Alloy A286 Pipe is widely used in various industries, including:
- Aerospace: Alloy A286 Pipe is used in the manufacture of aircraft and spacecraft components.- Power Generation: Alloy A286 Pipe is used in the manufacture of power generation equipment.- Chemical Processing: Alloy A286 Pipe is used in the manufacture of chemical processing equipment.
Properties of Alloy A286 Pipe
Alloy A286 Pipe offers exceptional properties, including:
- High strength (up to 1400 MPa)- High corrosion resistance- High durability- High thermal conductivity (up to 50 W/m-K)- Low temperature toughness
Machining and Fabrication of Alloy A286 Pipe
Alloy A286 Pipe can be machined and fabricated using various techniques, including:
- Cutting- Grinding- Polishing- Bending- Welding
Conclusion
Alloy A286 Pipe is a high-strength, corrosion-resistant alloy that offers exceptional durability and thermal stability. Its unique properties make it an ideal material for applications where high performance and reliability are critical.