Alloy Steel F91 bars are high-strength, heat-resistant steel bars made up of chromium, molybdenum, and vanadium alloy steels that boast exceptional mechanical properties as well as resistance against corrosion and oxidation at elevated temperatures. Their designation within ASTM A182 represents their specific grade. F91 pipe flanges, fittings, valves and parts designed specifically for high temperature service.
Alloy Steel F91 bars stand out with their exceptional tensile strength and toughness, making them suitable for applications in demanding environments such as power generation, chemical processing, oil and gas industries, etc. Their inclusion of chromium increases corrosion resistance while molybdenum improves their ability to withstand high temperatures as well as providing excellent creep strength; additionally vanadium adds hardenability as part of this alloy material.
These bars are widely utilized in the creation of various components exposed to extreme temperatures and pressure conditions, including valves, fittings, flanges and piping systems in power plants, refineries and petrochemical plants. Their superior heat resistance makes them particularly suitable for steam turbines and boilers where reliability and durability are of utmost importance.
Alloy Steel F91 bars boast superior machinability and weldability for simple fabrication and assembly of complex structures and components, with ease. Their versatile nature and high performance characteristics make Alloy Steel F91 bars popular choices among engineers and manufacturers looking for materials capable of withstanding extreme operating conditions while upholding structural integrity and dimension stability.
Alloy Steel F91 bars not only boast excellent mechanical properties, but are also cost-effective compared to other high-performance alloys - creating an appealing balance between performance and affordability. They make Alloy Steel F91 bars suitable for various industrial applications where cost considerations play a critical part when selecting material options.
Apple Steels is a Leading manufacturer and supplier of Alloy Steel F91 Bars in Mumbai, India. As we stand committed to excellence and have state-of-the-art facilities and skilled workforce supporting production processes we ensure stringent quality controls at each step. Our F91 Bars offer incredible strength, durability and resistance against corrosion - ideal products to use across various industrial applications. With stringent quality measures being in place at each step we ensure consistent products being shipped worldwide.
Melting and Casting
Steel and alloying metals are loaded into an electric arc furnace. Once in the furnace, the metal is heated to a specific temperature above its melting point, usually in excess of 2800°F.
Forming
Most cast steel is formed by hot rolling—the slab, bloom, or billet is heated and passed through large rollers, stretching out the steel into a longer, thinner form.
Heat treatment
Heat treatment strengthens rolled Inconel by recrystallizing the deformed microstructure. Most Inconel is heat treated by annealing.
Descaling
A rolled piece of Inconel acquires a layer of oxidized “mill scale,” which needs to be washed away to restore a shiny surface finish.
Cutting or Machining
Inconel is cut to a specified shape and size. The Inconel can be sheared with circular knives, sawed with high-speed blades, or blanked with punches.
Standards : | ASTM B425 / ASME SB425 |
Dimensions : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
Wire : | Thickness starting from 0.05mm |
Round bar size : | 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 |
Hollow Bar : | 32mm OD x 16mm ID to 250mm OD x 200mm ID |
Tolerance : | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
Finish : | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
STANDARD | UNS | WERKSTOFF NR. | Trade Name |
Alloy Steel F91 | K90901 | 1.4903 | 9Cr-1Mo-V |
Grade | C | Mn | Si | P | S | Cr | Mo |
Alloy Steel F91 | 0.08 - 0.12 | 0.3 - 0.6 | 0.5 | 0.01 | 0.02 | 8.5 - 9.5 | 0.85 - 1.05 |
Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min |
Alloy Steel F91 | 415 | 585 | 20 |
Electrical Industry
Automotive Industry
Construction Industry
Defence Industry
Pharmaceutical Industry
Petroleum Industry
Petrochemical Industry
Milk & Dairy Industry
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