US 309/309S (UNS S30900/S30908) steel

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Stainless Steel Plate

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Stainless Steel Plate

Product information

TYPES 309 AND 309S are austenitic chromium-nickel stainless steels that provide excellent corrosion resistance and heat resistance plus good strength at room and elevated temperatures. Type 309S is identical to Type 309 except for a lower carbon content that minimizes carbide precipitation and improves weldability.
Alloy 309 and 309S is best known for high temperature service. This alloy works well up to 2000 °F, especially if oxidation resistance is required. 309 and 310 stainless steel are premier high temperature performers among the common stainless grades available from our stock. High nickel and chromium content and a coarse grain structure result in:

Improved resistance to cyclic oxidation
Increased resistance to sulfidation
Better high temperature strength
Improved resistance to intergranular corrosion

309S (UNS S30908) stainless steel is the low carbon version of the alloy. It is utilized for ease of fabrication.

309H (UNS S30909) is a high carbon modification developed for enhanced creep resistance. It most instances the grain size and carbon content of the plate can meet both the 309S and 309H requirements. When heated between 1202 – 1742°F (650 – 950°C) the alloy is subject to sigma phase precipitation. A solution annealing treatment at 2012 – 2102°F (1100 – 1150°C) will restore a degree of toughness. Alloy 309 can be easily welded and processed by standard shop fabrication practices.

Technical data

Chemical Composition

Grade	C	Si	P	S	Cr	Mn	Ni	Fe
309	0.20 max	1.0 max	0.045 max	0.030 max	22.0 - 24.0	2.0 max	12.0 - 15.0	Remainder
309S	0.08 max	1.0 max	0.045 max	0.030 max	22.0 - 24.0	2.0 max	12.0 - 15.0	Remainder

Mechanical Properties

Grade	Tensile Strength (ksi)	0.2% Yield Strength (ksi)	Elongation% in 2 inches
309	75	30	40
309S	70	25	40

Physical Properties

	309	309S	Temperature in °C
Density	7.9 g/cm³	8.03 g/cm³	Room
Specific Heat	0.12 Kcal/kg.C	0.12 Kcal/kg.C	22°
Melting Range	1399 - 1454 °C	1399 - 1454 °C	-
Modulus of Elasticity	200 KN/mm²	200 KN/mm²	22°
Electrical Resistivity	78 µΩ.cm	78 µΩ.cm	Room
Coefficient of Expansion	14.9 µm/m °C	14.9 µm/m °C	20 - 100°
Thermal Conductivity	15.6 W/m -°K	15.6 W/m -°K	20°

FAQ

Q. Can I have a sample order for stainless steel sheet plate products?
A: Yes, we welcome sample order to test and check quality. Mixed samples are acceptable.

Q. What about the lead time?
A:Sample needs 3-5 days;

Q. Do you have any MOQ limit for stainless steel sheet plate products order?
A: Low MOQ, 1pcs for sample checking is available

Q. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, FedEx or TNT. It usually takes 3-5 days to arrive. Airline and sea shipping also optional. For mass products, ship freight is prefered.

Q. Is it OK to print my logo on products?
A: Yes. OEM and ODM are available for us.

Q: How to ensure the quality?

A:Mill Test Certificate is supplied with shipment. If needed, a Third Party Inspection is acceptable

warehouse storage

The annual output of the factory is 400,000 tons, and the current inventory is more than 100,000 tons, which can greatly save the purchasing time of customers and ensure the production cycle and product quality of customers. We are a quality partner for domestic and foreign customers. At present, there are 14 steel production lines for processing, bending, coating, heat treatment, cutting, drilling, chamfering, conditioning, surface treatment and 13 sets of processing equipment.

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Our main products are: carbon steel plate, carbon steel pipe, carbon steel coil, stainless steel plate, stainless steel coil, stainless steel profile, galvanized plate, galvanized coil, color coated steel coil, ppgi/ppgl and a wide range of high quality steel products.

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Li Cheng (Shandong) Metal Materials Co., LTD. has the right to import and export, and its products are exported to more than 20 countries in Asia, Africa, Europe, North America and other regions. Complete processing equipment, perfect quality assurance system, well received by customers.We are willing to first-class technology, first-class equipment, first-class service wholeheartedly and friends from all walks of life sincere cooperation!

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Applicable to construction, petroleum, chemical, electric power, metallurgy, urban gas, heat pipe network, Bridges, railways, vehicles, ships and other industrial fields and construction, infrastructure and other engineering fields. Complete testing equipment, strong technical force, can implement GB, ASTM, JIS, DIN and other standards.

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Stainless Steel Plate