SS 309S / SS 309H Wire

Alloys 309 and 309S are austenitic chromium-nickel stainless steels that are often used for higher temperature applications. Owing to their high chromium and nickel content, Alloys 309 and 309S are highly corrosion resistant, have exceptional resistance to oxidation, and great heat resistance while offering good strength at room and elevated temperatures. The only significant difference between 309 and 309S is the carbon content, Alloy 309S has a much less carbon composition which minimizes carbide precipitation and improves weldability.

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Stainless Steel Plate

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Product information

SS 309S stainless steel is a highly alloyed austenitic stainless steel utilized for its outstanding oxidation resistance, high-temperature, strength, and creep resistance. The lower nickel content of Stainless Steel 309, compared to Stainless Steel 310, increases its resistance to hydrogen sulfide (H2S) attack at high temperatures. It is tough and ductile and can be readily fabricated and machined. SS 309S is the low-carbon version, and is recommended for, uses where sensitization and subsequent corrosion by high temperature condensates during shutdown may pose a challenge. Stainless Steel 309S is used for its high-temperature oxidation resistance and resistance to H2S attack. 309S Stainless Steels can be roll formed, stamped and drawn readily. In-process annealing is usually needed to increase ductility and reduce hardness.

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°

Factory profile

Adhering to the tenet of "integrity first, quality for survival", the company has established a complete marketing channel of "based in North China, radiating the whole country, and facing the world", and has not only established a solid strategic partnership with many domestic and foreign enterprises.We have been committed to product development, production and sales, after more than ten years of efforts, our products have been widely used in various fields.

Packing method: Packing according to customer's requirement.

The company has more than 110,000 square meters of production and processing base, fully introduced the international advanced modern automatic production and processing equipment, and took the lead in passing the ISO9001, TS16949, BV, SGS and other international well-known institutions certification.The products are mainly exported to Italy, Mexico, South Korea, Israel, Turkey, India, Pakistan, Kyrgyzstan, Oman, Kazakhstan, Vietnam, Myanmar and other countries. The company's supply is sufficient, the variety is complete, order production is fast, welcome domestic and foreign manufacturers, traders to contact us.

Company Advantages
1. We are a large-scale production enterprise integrating production, research and development, and can customize the products required by customers.
2. We have a perfect after-sales service system, which can track the problems encountered by customers in production at any time and provide corresponding technical support, so as to share our high-quality resources with customers.
3. After more than ten years of development, the company has complete product varieties and large inventory, which can be delivered in the shortest time.
4. Free samples are available.
5. With obvious price advantage, the company has complete production process, from raw materials to finished products integrated production can maximize the cost savings.