ASTM A182 Gr F91 Alloy Steel Bars Manufacturers & Suppliers in India

ASTM A182 F91 is a specification for forged or rolled alloy steel bars and other shapes for high-temperature service. It falls under the ASTM International standards, which are widely recognized for defining and classifying materials and products across various industries. Specifically, ASTM A182 F91 pertains to alloy steel bars intended for use in high-temperature environments such as those encountered in the petrochemical, power generation, and oil and gas industries.

What is ASTM A182 F91 Alloy Steel?

Composition: ASTM A182 F91 is primarily composed of chromium, molybdenum, and vanadium, which impart excellent mechanical properties even at elevated temperatures. The chemical composition typically includes 8-9% chromium, 0.85-1.05% molybdenum, and 0.18-0.25% vanadium.
Heat Treatment: It undergoes heat treatment processes such as normalization and tempering to achieve desired mechanical properties and improve its resistance to high-temperature degradation.
Mechanical Properties: ASTM A182 F91 exhibits high tensile strength, excellent creep resistance, and good impact toughness, making it suitable for applications in high-temperature and high-pressure environments.

Table Of Content

What is ASTM A182 Gr F91 Alloy Steel Bars
ASTM A182 Gr F91 Alloy Steel Bars Specifications
ASTM A182 Gr F91 Alloy Steel Bars Equivalent Material
ASTM A182 Gr F91 Alloy Steel Bars Chemical Composition
ASTM A182 Gr F91 Alloy Steel Bars Mechanical Properties
Types Of ASTM A182 Gr F91 Alloy Steel Bars
Application Industries Of ASTM A182 Gr F91 Alloy Steel Bars

Advantages of ASTM A182 F91 Alloy Steel Bars:

High Temperature Resistance: The alloy exhibits exceptional resistance to high temperatures, maintaining its mechanical properties even under extreme heat conditions.
Corrosion Resistance: Chromium content in ASTM A182 F91 imparts excellent corrosion resistance, making it suitable for use in aggressive chemical environments.
Strength and Toughness: The combination of chromium, molybdenum, and vanadium enhances the mechanical properties, providing high strength and toughness necessary for demanding applications.
Longevity: Components made from ASTM A182 F91 alloy steel bars exhibit long-term durability and reliability, resulting in extended service life and reduced maintenance costs.
Weldability: ASTM A182 F91 can be welded using conventional welding techniques, allowing for ease of fabrication and assembly of components.

Tricon Steel and Alloys, based in Mumbai, India, stands as a premier manufacturer and supplier of ASTM A182 F91 Alloy Steel Bars. With a commitment to quality and excellence, we have emerged as a leading player in the industry. Our state-of-the-art manufacturing facilities ensure the production of high-grade alloy steel bars that adhere to ASTM A182 F91 specifications. As a trusted name in the market, we prioritize customer satisfaction by delivering products known for their durability, strength, and precise specifications. Tricon Steel and Alloys takes pride in its reputation for reliability, timely delivery, and unmatched expertise in the production of ASTM A182 F91 Alloy Steel Bars, making us the preferred choice for discerning clients globally.

ASTM A182 Gr F91 Alloy Steel Bars Specifications

Specifications	ASTM A182, ASME SA182
Dimension Standard	EN, DIN, JIS, ASTM, BS, ASME, AISI
Bar Diameter	3 ~ 800mm
Hex Bar size	2-100mm A/F
Flat bar size	Thickness: 2 -100mm. Width: 10 to 500mm.
Square bar size	4 to 100mm
Rectangular Bars	Size: 33 x 30mm to 295 x 1066mm. Thickness: 3.0 to 12.0mm.
Hollow Bars	32mm OD x 16mm ID to 250mm OD x 200mm ID)
Billet Size	1/2 to 495mm Diameter
Finish	Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black
Tolerance	H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements
Bar Surface	Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline
Rolled Bars Condition	Hardened & tempered, annealed
Cold Rolled Bar Technique	Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod
Form	Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc.

Manufacturing Process of ASTM A182 F91 Alloy Steel Bars:

Melting

The first step in the process is melting raw materials in an electric furnace. These raw materials are typically iron ore, chromium, nickel, and other elements in exact amounts.

Hot Rolling

After being heated, the billets are shaped into long, thin rods by going through a series of rolling mills. Because the metal is heated above its recrystallization temperature during this operation, it is known as hot rolling.

Pickling

The pickling process is used to the bars in order to eliminate any oxide, scale, or other surface contaminants. Usually, an acid solution is used for this.

Cutting

Lastly, shearing machines or other cutting techniques are used to cut the rods to the required length.

ASTM A182 Gr F91 Alloy Steel Bars Equivalent Material

STANDARD	UNS	WNR.	TRADE NAME
Alloy Steel F91	K90901	1.4903	9Cr-1Mo-V

Chemical Composition of ASTM A182 F91 Alloy Steel Bars:

Grade	C	Mn	Si	P	Cr	Mo
ASTM A182 F91	0.08 - 0.15	0.30 - 0.60	0.20 - 0.50	0.020	8.0 - 9.5	0.85 - 1.05

Properties of ASTM A182 F91 Alloy Steel Bars:

Tensile Strength (ksi) min	Elongation (% in 50mm) min	Yield Strength 0.2% Proof (ksi) min
570	23	295

ASTM A182 Gr F91 Alloy Steel Bars Technical Information

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Types Of ASTM A182 Gr F91 Alloy Steel Bars

ASTM A182 Gr F91 Round Bar

ASTM A182 Gr F91 Square Bar

ASTM A182 Gr F91 Flat Bar

ASTM A182 Gr F91 Hex Bar

ASTM A182 Gr F91 Bright Bar

ASTM A182 Gr F91 Polished Bar

ASTM A182 Gr F91 Threaded Rod

ASTM A182 Gr F91 Rectangular Bar

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Applications of ASTM A182 F91 Alloy Steel Bars:

Power Generation: Components such as turbine rotors, shafts, and blades in power generation plants utilize ASTM A182 F91 alloy steel bars due to their ability to withstand high temperatures and stresses.
Oil and Gas Industry: It finds applications in critical components like valves, fittings, and piping systems used in oil refineries and petrochemical plants where resistance to corrosion and high temperatures is essential.
Chemical Processing: ASTM A182 F91 alloy steel bars are used in equipment for chemical processing where exposure to corrosive environments and high temperatures is common.
Pressure Vessels: These bars are employed in the construction of pressure vessels and boilers that operate at elevated temperatures and pressures.