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Material quality very good. we have cooperate more than 10 Years. They trade lots kinds of steel material. All material quality good. They duty for all material quality. We are planing continue cooperate with them in the future

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POSCO 321 Stainless Steel Plate 3.0 - 80.0mm Laser Cutting Cold Rolled SS Plate

Certification	AISI
Minimum Order Quantity	40 kg
Price	US $2.55-3.26 / kg

Product Details

Shape	Flat	Technique	Cold Rolled
Surface Treatment	Bright	Specification	12202440, 15003000, 15006000, 20006000mm
Thickness Range	0.5-80.0 Mm	Standard Size	10002000mm, 12192438mm, 15003000mm, 15006000mm, 18006000mm, 20006000mm
Finish	SATIN, 2B, 2D, BA NO (8), CR, HR, No.1, 1D, No.4, BA, 8K, Hairline, Brush, Mirror	Tensile Strength	515 MPa Min
Yield Strength	205 MPa Min	Elongation	40% Min
Hardness Rockwell B	95 Max	Hardness Brinell	217 Max
Carbon Content	0.08% Max	Chromium Content	17.0-19.0%
Nickel Content	9.0-12.0%
Highlight	Laser Cutting Stainless Steel Plate , 3.0 - 80.0mm SS Plate , Cold Rolled 321 Stainless Steel Plate

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Product Description

POSCO 321 Stainless Steel Plate 3.0 - 80.0mm Laser Cutting

Product Specifications

Product Type	321 Stainless Steel Sheet, 321 Stainless Steel Plate
Specification	ASTM A240 / ASME SA240 JIS G4305 / EN 10088-2 / GB 24511
Thickness	Cold rolled: 0.5-3.0 mm Hot rolled: 3.0-80.0 mm
Standard Size	Cold rolled: 1000×2000mm, 1219×2438mm Hot rolled: 1500×3000mm, 1500×6000mm, 1800×6000mm, 2000×6000mm
Finish	Satin, 2B, 2D, BA NO (8), Cold rolled sheet (CR), Hot rolled plate (HR), No.1 finish hot rolled, 1D, No.4, BA, 8K, hairline, brush, mirror, etc.
Brand	TISCO, BAOSTEEL, POSCO, JISCO, DONGTE
Forms / Shapes	Plate, Sheet, Coils, Foils, Strip, Flats, Clad Plate, Plain Sheet, Rolling Sheet, Rolling Plate, Flat Shim, Flat Sheet, Shim Sheet, Rolls, Blank (Circle), sheared, annealed, soft annealed, descaled, tread plate, Checker Plate
Other Trade Names	SS 321, SUS 321, Inox 321, DIN 1.4541, UNS S32100, AISI 321, SAE 321 Sheet

Grade Overview

Grades 321 and 347 are austenitic 18/8 steels (similar to Grade 304) stabilized by Titanium (321) or Niobium (347) additions. These grades resist intergranular corrosion after heating within 425-850°C. Grade 321 is ideal for applications up to 900°C, offering high strength, scaling resistance, phase stability, and subsequent aqueous corrosion resistance.

Grade 321H features higher carbon content for improved high-temperature strength. Note that 321 is not recommended as a welding consumable; grade 347 is preferred for welding applications.

Both grades offer excellent forming and welding characteristics, outstanding toughness even at cryogenic temperatures, and do not require post-weld annealing. Grade 321 does not polish well and is not recommended for decorative applications.

Chemical Composition

Grade	C	Mn	Si	P	S	Cr	Ni	Other
321	≤0.08	≤2.00	≤0.75	≤0.045	≤0.030	17.0-19.0	9.0-12.0	Ti=5(C+N) min, 0.70 max
321H	0.04-0.10	≤2.00	≤0.75	≤0.045	≤0.030	17.0-19.0	9.0-12.0	Ti=4(C+N) min, 0.70 max

Mechanical Properties

Grade	Tensile Strength (MPa) min	Yield Strength 0.2% Proof (MPa) min	Elongation (% in 50mm) min	Hardness (Rockwell B) max	Hardness (Brinell HB) max
321	515	205	40	95	217
321H	515	205	40	95	217

International Grade Equivalents

Grade	UNS No	British BS	Euronorm	Japanese JIS
321	S32100	321S31	1.4541	SUS 321
321H	S32109	321S51	1.4878	SUS 321H

Typical Applications

Aircraft piston engine manifolds
Expansion joints
Firearms production
Thermal oxidizers
Refinery equipment
High temperature chemical process equipment

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About Our Company

GMS is a medium-sized professional company integrating wholesale sales and processing of stainless steel materials, providing customers with comprehensive services including sales, processing, and logistics distribution.

Our products serve numerous industries including nuclear power engineering, petrochemical, electric furnace, boiler, pressure vessel, electric heating equipment, textile, pharmaceutical, mechanical equipment, kitchen equipment, solar energy, and papermaking equipment, with customers nationwide.

We maintain standing stock of over 3000 tons and can arrange special orders for unique steel requirements. Our additional services include embossing (domestic and Japanese), mirror polishing, plate polishing, grinding, flattening, and cutting (laser, water jet, plasma) to meet diverse customer needs.

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POSCO 321 Stainless Steel Plate 3.0 - 80.0mm Laser Cutting Cold Rolled SS Plate

Laser Cutting Stainless Steel Plate

3.0 - 80.0mm SS Plate

Cold Rolled 321 Stainless Steel Plate