Stainless Steel 309 Plates | SS 310 and 310 Steel Sheets

SS 309, 310, and 310S Sheets & Plates are advanced-grade stainless steel materials specifically designed to perform reliably in extreme heat conditions and chemically aggressive environments. These austenitic stainless steel plates grades are specifically developed for applications involving elevated heat, oxidation, and thermal cycling. SS 309 delivers reliable mechanical strength and resists oxidation effectively at temperatures reaching 1000°C. In comparison, SS 310 and its low-carbon counterpart, SS 310S, are well-suited for environments prone to thermal fatigue and exhibit strong resistance to creep under prolonged high-temperature exposure. These materials are widely preferred in industries where extreme heat and aggressive atmospheres are a regular challenge.

The alloy composition of these sheets and plates typically includes high levels of chromium (22-26%) and nickel (12-22%), which contribute to their exceptional scaling resistance and mechanical stability at high temperatures. SS 310S, with its reduced carbon content, minimizes the risk of carbide precipitation during welding, making it ideal for high-temperature welded structures. The sheets and plates are available in a variety of finishes, thicknesses, and dimensions to meet the precise requirements of different industrial applications.

Technical Overview

SS 309/310/310S Sheets & Plates conform to ASTM A240 specifications and are characterized by their austenitic microstructure, which ensures excellent toughness and structural integrity even in sub-zero temperatures. The high chromium and nickel content enhances their resistance to oxidation, carburization, and sulfidation, making them suitable for prolonged exposure to high-temperature gases and thermal shock. SS 310 offers superior resistance compared to SS 309 due to its higher alloy content, while SS 310S is specifically designed to reduce intergranular corrosion in the heat-affected zone during welding operations.

These stainless steel grades exhibit excellent fabrication properties and can be welded using all conventional welding techniques, including TIG, MIG, and shielded metal arc welding. Cold and hot working can be performed efficiently, though these grades require higher forming pressures compared to lower alloyed steels. The materials maintain good ductility and toughness across a wide temperature range, and are non-magnetic in the annealed condition. SS 309/310/310S Sheets & Plates are offered in a variety of surface finishes, including 2B, BA, No. 1, and mirror polish, combining high-performance functionality with visual appeal for demanding industrial and architectural uses.

Applications & Industry Use

Thanks to their excellent resistance to heat and corrosion, SS 309/310/310S Sheets & Plates are extensively used in sectors like chemical processing, thermal power generation, cement manufacturing, and furnace construction. These materials are well-suited for use in heat exchangers, kilns, incinerators, combustion chambers, and other high-temperature environments where structural reliability and oxidation resistance are essential. In petrochemical and oil & gas industries, they are employed in reformers, radiant tubes, and reactor linings that are regularly exposed to high heat and corrosive media.

In the marine and offshore sectors, these stainless steel sheets and plates offer resistance to saline environments and thermal stress, making them suitable for components exposed to fluctuating temperatures and salt-laden air. Their durability and high-temperature performance also make them ideal for aerospace and automotive exhaust systems, where material failure is not an option. We proudly supply SS 309/310/310S Sheets & Plates to clients in India, UAE, KSA, Kuwait, Qatar, Oman, Iran, and Iraq, meeting the rigorous demands of regional industries with consistent quality and timely delivery.

309/310/310S Stainless Steel Sheets and Plates Equivalent Grades

STANDARD	UNS	WNR.	AFNOR	EN	JIS	BS	GOST
SS 309	S30900	1.4845	Z7CN18‐09	X5CrNi18-10	SUS 309	304S31	08Х18Н10
SS 310	S31000	1.4828/1.4307	Z3CN18‐10	X2CrNi18-9 / X2CrNi19-11	SUS 310	304S11	03Х18Н11
SS 310S	S31008	1.4845	-	-	-	-	-

SS 253 MA Perforated Sheets

Stainless Steel 253 MA Perforated Sheets, UNS S30815 Perforated Sheets, DIN 1.4835 Perforated Sheets, ASME SA 240 SS 253 MA Perforated Sheets, Stainless Steel S30815 Perforated Sheets

SS 253 MA Chequered Plates

ASME SA240 SS 253MA Chequered Plates, ASTM A240 Stainless Steel 253 MA Chequered Plates, DIN 1.4835 Chequered Plates, UNS S30815 Chequered Plates, SS 253 MA Checkered Plates

SS 253 MA Shim Sheets

Stainless Steel ASTM A240 253 MA Shim Sheets, UNS S30815 / DIN 1.4835 Shim Sheets, ASME SA240 SS 253 MA Shim Sheets, SS 253 MA Shim Sheet, Stainless 253 MA Shim Sheets, SS 253 MA Shim Sheets Supplier

SS 253 MA Coils

DIN 1.4835 Coils, UNS S30815 Coils, ASME SA 240 Stainless Steel 253 MA Coils, ASTM A240 253 MA SS Coils

SS 253 MA Strips

ASTM A240 253 MA Stainless Steel Strips, SS UNS S30815 Strips, Stainless Steel 253 MA Strips, SS 1.4835 Strips

SS 253 MA Foils

UNS S30815 Foils, Stainless Steel 253 MA Foils, ASTM A240 253 MA Stainless Steel Foils, Stainless Steel 253 MA Foils

Stainless Steel Sheets and Plates Specification :

ASTM A240 / ASME SA240

Dimension Standard :

JIS, AISI, ASTM, GB, DIN, EN, etc

Width :

1000mm, 1219mm, 1500mm, 1800mm, 2000mm, 2500mm, 3000mm, 3500mm, etc

Length :

2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc

Thickness :

0.3 mm to 120 mm

Form :

Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank (Circle), Ring (Flange) etc.

Surface Finishing :

Hot rolled plate (HR), Cold rolled sheet (CR),2B, 2D, BA, NO.1, NO.4, NO.8, 8K, mirror, Chequered, embossed, hair line, sand blast, Brush, etching, SATIN (Met with Plastic Coated) etc.

Chemical Composition of Stainless Steel 309/310/310S Sheets and Plates

	C	Mn	Si	P	S	Cr	Ni	Fe
309	0.2 max	2.0 max	1.0 max	0.045max	0.03max	22 24	12-15	Balance
310	0.25 max	2.0 max	1.50 max	0.045max	0.03max	24-26	min: 8.0 max: 12.0	Balance
310S	0.08 max	2.00 max	1.50 max	0.045	0.03	24-26	19-22	Balance