Alloy Steel Grade 91 Coil

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Thabiso Steel is a reputable manufacturer and supplier located in Cape Town, South Africa, focusing on high-performance steel products, such as Alloy Steel Grade 91 Coil. With a strong dedication to quality, precision engineering, and customer satisfaction, Thabiso Steel caters to a variety of industries throughout South Africa and beyond. The company boasts a comprehensive inventory of alloy steel solutions tailored to meet the rigorous demands of modern infrastructure, power plants, and heavy machinery. Backed by years of experience and a solid reputation for reliability, Thabiso Steel guarantees timely delivery and top-notch material standards with every Alloy Steel Grade 91 Coil they provide.

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Alloy Steel Grade 91 Coils

Alloy Steel Gr 91 CR Coil

Alloy Steel Grade 91 HR Coil

What is Alloy Steel Grade 91 Coil?

Alloy Steel Grade 91 Coil is a high-strength, creep-resistant alloy primarily made up of chromium (8–9.5%), molybdenum (0.85–1.05%), along with trace amounts of carbon, manganese, vanadium, and nitrogen. It’s specifically engineered for high-temperature applications, offering outstanding oxidation and corrosion resistance. Its mechanical properties include a tensile strength of about 585 MPa and a yield strength of around 415 MPa, along with impressive toughness even at elevated temperatures. The alloy undergoes heat treatment to enhance its strength and stability, making it perfect for critical components in challenging thermal and pressure environments.

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Alloy Steel Grade 91 Coil Specifications

Specifications	ASTM A387 / ASME SA387
Standard	ASTM, ASME and API
Thickness	4.0mm – 100mm
Specialize	Shim Sheet, Perforated Sheet, B. Q. Profile.
Form	Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange)
Finish	Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Hardness	Soft, Hard, Half Hard, Quarter Hard, Spring Hard etc.
Grade	ASTM A387 GR.91

Alloy Steel Grade 91 Coil Chemical Composition

Grade

Nitrogen

A387 GR.91

0.06-0.15 max

0.43 max

0.25-0.66 max

0.012 max

0.16-0.27 max

0.05 max

0.18-0.56 max

0.05-0.11 max

7.90-9.60 max

0.80-2.10 max

0.025-0.080 max

0.025 max

Alloy Steel Grade 91 Coil Mechanical Properties

Grade	A387 GR.91 CL.2
A387 GR.91	Thickness mm	Yield Min Mpa	Tensile Mpa	Elongation Min %
	t≦50	415	585-760	18
	50<t≦200	–	–	–

If You Are Looking To Buy High Quality
Pipes, Sheet, Fittings and Flanges

We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.

Top Manufacturer and Supplier of Alloy Steel Grade 91 Coil in Cape Town, South Africa

Jaxon Steel based in Cape Town, South Africa is a trusted manufacturer and supplier for Alloy Steel Grade 91 Coils of great quality. In fact, we have earned our reputation for providing a variety of top-notch steel products-such as Structural Steel, Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel-with emphasis on Structural Steel Sheets and Plates. Basic product lines include a complete range of Pipes, Tubes, Flanges, Forged Fittings, Bars, and other forms. Jaxon Steel is committed to its delivery and customer service, thus ensuring that they procure the best raw materials to guarantee high strength and durability with performance specifically for critical industrial applications. Contact us anytime for your Structural Steel Sheet and Plate needs!

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Types of Alloy Steel Grade 91 Coil

Alloy Steel Gr 91 Polish Coil

Alloy Steel Grade 91 Shim Coils

Alloy Steel Grade 91 Slitting Coil

Alloy Steel Gr 91 Hot Rolled Coils

Alloy Steel Gr 91 HR Coils

Alloy Steel Grade 91 Cold Rolled Coils

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Uses of Alloy Steel Grade 91 Coil

This Alloy Steel Grade 91 Coil is extensively utilized in high-temperature and high-pressure settings due to its remarkable mechanical properties and resistance to thermal fatigue. It’s commonly found in the power generation sector for crafting boiler tubes, superheaters, reheaters, and headers in both thermal and nuclear plants. The alloy’s durability also makes it a great fit for components in petrochemical refineries, heat exchangers, and pressure vessels. Its ability to retain strength under extreme conditions ensures safety and longevity in essential systems. Thabiso Steel provides this coil to clients who need dependable, high-performance materials for infrastructure and industrial operations across various sectors.