Stainless Steel 321/347 Products

321 / 347 Stainless Steel Sheets Plates, Steel Grade: SS321 / SS347

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Stainless Steel 321 / 347 Plates Specification:
Stainless Steel 321 / 347 Plates Chemical Composition
Stainless Steel 321 / 347 Plates Mechanical properties
Stainless Steel 321 / 347 Plates Equivalent Grades
Types Of Stainless Steel 321 / 347 Sheets & Plates

Stainless Steel Grade SS321 / SS347 Sheets & Plates Manufacturer & Supplier in India

At Lakshay Steel, we are proud dealers and suppliers of Stainless Steel 321/347 Sheets and Plates in India and internationally. We manufacture stainless steel sheets and plates in customized designs, using premium-quality raw materials. Our expert team ensures every product meets the highest standards of usability, reliability, and durability. We offer a wide range of sheets and plates in various sizes and dimensions, and each product undergoes rigorous testing at every stage of production to guarantee top-quality results.

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What are 321 stainless steel sheets & plates?

321 stainless steel sheet is an alloy of chromium, nickel, and titanium, offering exceptional corrosion and heat resistance. It is the preferred choice for high-temperature applications, as it maintains its shape and strength even in extreme conditions. The high chromium and titanium content also gives 321 stainless steel a unique aesthetic, making it suitable for both indoor and outdoor uses. This premium-grade steel is widely used in industries such as aerospace, where strength, precision, and durability are essential for complex projects.

321 stainless steel plates belong to the austenitic family of stainless steel. Essentially, 321 is a modified version of 304 steel with titanium added as a stabilizer. It is an excellent choice for applications involving high heat, capable of withstanding temperatures up to 900°C, compared to 304, which is typically used up to 500°C. Grade 321 has excellent forming and welding properties, though it does not polish well, making it unsuitable for decorative purposes.

Stainless Steel 321 / 347 Sheets & Plates Specifications:

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, hairline, sandblast, Brush, etching, SATIN (Met with Plastic Coated), etc.

SS 321 / 347 Sheets & Plates Chemical Composition:

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
SS 321	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 19.00	0.10 max	9.00 – 12.00	5(C+N) – 0.70 max
SS 347	0.08 max	2.0 max	1.0 max	0.045 max	0.030 max	17.00 – 20.00	10xC – 1.10	9.00 – 13.00	62.74 min

Stainless Steel 321 / 347 Sheets & Plates Mechanical Properties:

Grade	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
SS 316	8.0 g/cm3	1457 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %
SS 347	8.0 g/cm3	1454 °C (2650 °F)	Psi – 75000 , MPa – 515	Psi – 30000 , MPa – 205	35 %

Equivalent Grades for 321 / 347 Stainless Steel Plates

STANDARD	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
SS 321	1.4541	S32100	SUS 321	–	–	–	X6CrNiTi18-10
SS 347	1.4550	S34700	SUS 347	–	08Ch18N12B	–	X6CrNiNb18-10

Types Of Stainless Steel 321 / 347 Sheets & Plates

Stainless Steel 321 / 347 Plates	SS 321 / 347 plates
Stainless Steel 321 / 347 Plates	SS 321 / 347 ASTM A240 Plates Exporter
Stainless Steel 321 / 347 Chequered Plate	ASTM A240 SS 321 / 347 Plates Supplier
DIN 1.4541 / 1.4550 SS Diamond Chequered Plate	321 / 347 SS Plates Manufacturers
UNS S32100 / S34700 SS Plate Stockholder	Cold Rolled Stainless Steel 321 / 347 Plates
Stainless Steel Plate 2B Finish Dealer	321 / 347 Finish Stainless Steel Plates
Cut to Size Stainless Steel 321 / 347 Plates	Hot Rolled Stainless Steel 321 / 347 Plates
Stainless Steel 321 / 347 CR Plates Stockist	Stainless Steel 321 / 347 HR Plates Dealer
Leading Manufacturer Of Stainless Steel 321 / 347 Plates	ASTM A240 High Quality SS 321 / 347 Plates,
ASME SA240 SS 321 / 347 Plates Dealers	321 / 347 Stainless Steel Plates Exporter

321 Stainless Steel Sheet Application

321 stainless steel sheet is a versatile material that can be used in a variety of applications. Its properties make it a good choice for demanding applications that require high strength, corrosion resistance, and high-temperature performance.

Here are some of the applications of 321 stainless steel sheet:

Aerospace: 321 stainless steel sheet is used in aircraft exhaust systems, heat exchangers, and other high-temperature components.
Chemical processing: 321 stainless steel sheet is used in chemical processing equipment, such as tanks, pipes, and valves, due to its corrosion resistance.
Food and beverage: 321 stainless steel sheet is used in food and beverage processing equipment because it is easy to clean and sanitize.
Heat treating: 321 stainless steel sheet is used in heat treating equipment, such as furnaces and kilns, because of its high-temperature strength.
Power generation: 321 stainless steel sheet is used in power generation equipment, such as boilers and heat exchangers, because of its high-temperature strength and corrosion resistance.

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FAQs

What is type 321 stainless steel?

Type 321 stainless steel is a titanium-stabilized austenitic stainless steel, offering corrosion resistance comparable to 304/304L stainless steel.

Is 321 SS better than 316 SST?

321 stainless steel and 316 stainless steel offer different advantages. 321 excels in high-temperature applications and maintains weld stability. 316 is the preferred choice for superior corrosion resistance, particularly in chemical and saltwater environments. The “better” option depends entirely on the specific application requirements.

What is the difference between 321 and 304 stainless steel?

321 stainless steel is preferred over 304 in industrial applications like chemical, coal, and petroleum industries that operate at high temperatures. 304 stainless steel is widely used in low-temperature applications like furniture decoration, food, and medical industries.

What grade is SS 321 equivalent to?

Stainless steel 321 is similar to grade 304 when annealed. However, it offers better corrosion resistance, especially after welding if it hasn’t been heat-treated, or when used in temperatures between 425 and 900°C

What type of material is 347?

Type 347 is a niobium-stabilized chromium-nickel austenitic stainless steel. It offers corrosion resistance comparable to grades 304 and 304L

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