Stainless Steel 309H Sheet and Plates

Stainless Steel 309H Sheets and Plates are top-notch alloys crafted for high-temperature settings where strength, durability, and resistance to corrosion are essential. As a high-carbon variant of 309 stainless steel, 309H excels in oxidation resistance and creep strength, making it a fantastic choice for structural applications in extreme heat. Its austenitic structure guarantees toughness and ease of welding, while the added chromium and nickel boost its ability to withstand scaling and corrosive environments. You’ll find Stainless Steel 309H Sheets and Plates commonly used in industrial furnaces, power generation facilities, chemical plants, and heat treatment equipment, all thanks to their reliability and impressive service life.

SS 309H Chequered Plate

SS 309H Perforated Sheets

SS 309H Shim Sheet

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These sheets and plates are made up of iron, chromium (22–24%), nickel (12–15%), and a higher carbon content of up to 0.20%. This extra carbon enhances their strength at high temperatures and improves creep resistance. In terms of mechanical properties, they boast a tensile strength of around 620 MPa, a yield strength of 310 MPa, and good elongation, ensuring they are both durable and easy to work with. They maintain stability and oxidation resistance even at temperatures reaching 1000°C, delivering outstanding performance in high-heat applications. Their austenitic structure provides toughness across a broad temperature range, making them perfect for challenging environments.

Stainless Steel 309H Sheet and Plates Specification

Specifications	ASTM A240 / ASME SA240
Size	1/4″ to 4″
Range	5mm To 150mm
Thickness	4mm-100mm
Width	1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc
Length	2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc
Surface	2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, checkered, embossed, hair line, sand blast, Brush, etching, etc
Finish	Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)
Form	Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.

SS 309H Sheets and Plates Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Ni	Fe
SS 309	0.20	2	1	0.045	0.030	23	14	60
SS 309H	0.04-0.10	2.0	0.75	0.045	0.03	22.0-24.0	15.0	58.0-63.0

SS 309H Sheets and Plates Mechanical Properties

Grade	Tensile Strengtd ksi (min)	Yield Strength 0.2% ksi (min)	Elongation %	Hardness (Brinell) max
309/S	75	30	40	95
309/H	40	30	40	217

Equivalent Grades of A240 Stainless Steel 309H Sheets and Plates

STANDARD	WERKSTOFF NR.	UNS
SS 309H	1.4833	S30909

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

Largest Stainless Steel 309H Sheet and Plates Manufacturer and Exporter in Istanbul, Turkey

Yunus Sheets and Plates based in Istanbul, Turkey, is a leading supplier and stockist of high-quality metal products, including Sheets, Plates, Coils, Foils, Angles, Channels, Circles, and Slitting Coils, all offered with exceptional service and tailored to meet our customers specific requirements. With a focus on delivering superior products, we cater to a wide range of industries, providing reliable solutions for diverse applications. Our extensive inventory includes Known for our unique finishing techniques and commitment to quality. We are dedicated to ensuring customer satisfaction through dependable service and top-notch products.

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Stainless steel 309H sheets and plates offer many advantages, including excellent resistance to high temperature oxidation and corrosion, making them ideal for harsh environments Due to the high carbon content they retain strength and staying power exist longer at high temperatures (up to 2000°F or 1093°C ). The material also boasts excellent resistance to heat fatigue, stress and cracking. Stainless steel 309H is highly weldable, ensuring ease of fabrication. It is also scratch resistant and can withstand acidic and basic environments. These properties make it suitable for industries such as aerospace, chemical processing and power generation.

Types of Stainless Steel 309H Sheet and Plates

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Are Custom Sizes Available for Stainless Steel 309H Sheet and Plates?

Yes, we offer custom sizes for Stainless Steel 309H Sheet and Plates to meet specific project needs. Our team at Yunus Sheets and Plates is dedicated to providing tailored solutions for all your requirements. For more details, contact us at sales@aaronsheetsplates.com.

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Application Industry of Stainless Steel 309H Sheet and Plates

Stainless Steel 309H Sheets and Plates are widely utilized in industries that demand high-temperature strength and oxidation resistance. You’ll see them in heat exchangers, furnace linings, kilns, and boiler components. In the chemical and petrochemical industries, they’re used for reactors, catalytic converter housings, and process equipment that face high heat and corrosive substances. Power generation plants rely on them for superheater tubes and exhaust systems, while the metallurgical sector employs them in annealing boxes and conveyor belts. Their unique blend of strength, oxidation resistance, and durability ensures they perform reliably even in the toughest industrial conditions.