309/309S Stainless Steel Plate & Sheet Stockist In China

309/309S STAINLESS STEEL PLATE

309/309S stainless steel plate is a austenitic chromium-nickel stainless steel. Ronsco is proud to exported it to more than 80 countries.

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MORE DETAILS ABOUT 309/309S STAINLESS STEEL PLATE

Product Name	309/309S Stainless Steel Plate, 309/309S Stainless Steel Sheet
Equivalent Grade	309: AISI 309, UNS S30900, SAE 309, DIN 1.4833, SUS 309, X12CrNi23-13
Equivalent Grade	309S: AISI 309S, UNS S30908, SAE 309S, DIN 1.4950, SUS 309S, X6CrNi23-13
Standard	GB, AISI, ASTM, DIN, EN, JIS
Process	Hot Rolled, Cold Rolled, Forged
Sizes	Thickness: 0.3-200mm, Width: 10-4000mm
Surface Treatment	NO.1, 1D, 2D, 2B, NO.4, BA, HL, Mirror, Embossim, Sandblasted
Fabricating	Rolling, Bending, Sllitting, Decoiling, Cutting, Drilling, Punching, Beveling, Welding etc.
Inspection	SGS, TUV, BV, ABS, LR etc.
Application	Oil&Gas, Petroleum, Vessels, Ship Building, Water Treatment And Environmental Protection etc.

GENERAL INFO ABOUT EACH Stainless Steel Plate GRADE

309/309S stainless steel plate contains high chromium and nickel. It is highly corrosion resistant, outstanding resistance to oxidation, and excellent heat resistance. At the same time, they can be roll formed, stamped and drawn readily. It is widely applied in high temperature containers.

Single Sheet Of Rolling Specification
Thickness/Width	1500	1800	2000	2200	2400	2500	3200
4-6mm	√	√	-	-	-	-	-
6-10mm	√	√	√	√	√	-	-
11-12mm	√	√	√	√	√	√	√
13-14mm	√	√	√	√	√	√	√
17-25mm	√	√	√	√	√	√	√
26-70mm	√	√	√	√	√	√	√
71-120mm	special	special	special	special	special	special	special

MORE DETAILS ABOUT EACH Stainless Steel Plate GRADE

Hot Forming
Cold Forming
Welding

309/309S Stainless Steel Grade:

Heat uniformly at 1742 – 2192°F (950 – 1200°C). After hot forming a final anneal at 1832 – 2101°F (1000 – 1150°C) followed by rapid quenching is recommended.

309/309S Stainless Steel Grade:

Cold forming of pieces with long-term exposure to high temperatures is not recommended since the stainless steel is subject to carbide precipitation.

309/309S Stainless Steel Grade:

It can be welded by most standard processes, including TIG, PLASMA, MIG, SMAW, SAW and FCAW.

CHEMICAL PROPERTIES

	C	Mn	P	S	Si	Cr	Ni	Mo	N	Cu
309	0.20	2.00	0.045	0.03	0.75	22.00-24.00	12.00-15.00	/	/	/
309S	0.08	2.00	0.045	0.03	0.75	22.00-24.00	12.00-15.00	/	/	/

MECHANICAL PROPERTIES

	Tensile Strength (min)		Yield Strength (min)		Elongation	Hardness, max
	ksi	Mpa	ksi	Mpa	/	Brinell.HBW	Rockwell
309	75	515	30	205	40	217	95HRBW
309S	75	515	30	205	40	217	95HRBW

MORE DETAILS ABOUT EACH Stainless Steel Plate PROCESS

Steel Making Process
Hot Roll Process
Solid Solutions & Pickling

MORE DETAILS ABOUT EACH Stainless Steel Plate SURFACE

NO.1
2D
2B
NO.4
BA
HL
Mirror

NO.1 surface treated by heat treatment and pickling after hot rolling. The appearance is silver white, matt and bright. This surface is suitable for industries that require heat resistance and corrosion resistance, and the surface brightness is not important. Common applications include industrial tank and chemical industrial plants etc..

2D surface treated by heat treatment and pickling after cold rolling. The appearance is silver white, smoother but of matt grain. Common applications include petrochemical production equipment, automotive components, building materials and water pipes etc..

After 2D treatment, the final process is lightly cold rolled by a polishing roller to obtain proper gloss. The appearance is smooth and bright, and easy to re-grind to make the surface more brighter. Common applications include building materials, tableware etc..

NO.4 is a product ground with a grinding belt of size 150-180. It has better gloss, discontinuous rough lines and finer stripes than No.3 stainless steel castings commonly used polished and sanded surfaces. Common applications include food processing equipment, home electrical products, medical equipment etc..

BA surface is also produced by cold rolling and de-scaling. It has excellent surface gloss, high reflectivity. In addition, The very smooth surface also makes this surface highly suitable for further finishing processes such as mirror polishing and chrome plating. Common applications include catering equipment etc..

HL use a polishing abrasive belt with an appropriate particle size (150-320 mesh) to grind, with obvious straight stripes. The surface is beautiful, good texture and scratch is not obvious, durable, wear-resistant. Common applications include building decoratio, elevators, vehicle parts, etc..

Mirror is produced by polishing with successively finer abrasives and buffing extensively until all grit lines from preliminary grinding operations are removed. The feature is highest reflectivity. Mainly used for interior and exterior decoration materials of automobiles and buildings.

FREQUENTLY ASKED QUESTIONS

What Is The Difference Between 309 And 309S?
What Is Stainless Steel?
How Does Chromium Prevent Rusting?

What Is The Difference Between 309 And 309S?

Answer:

309S is an extra-low carbon variant of 309. Due to a lower carbon content, that minimizes carbide precipitation and improves weldability.

What Is Stainless Steel?

Answer:

309/309S is one of the stainless steel grade. Grades of steel that contain more than 10 percent chromium — with or without other alloying elements — are called stainless steel.

How Does Chromium Prevent Rusting?

Answer:

309/309S stainless steel contains chromium (22.0 min.-24.0 max). Chromium and other elements react with air and water to form a thin film on the outside of the steel. This film serves as a barrier that prevents corrosion.

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