SS 309S Flanges ASTM A182 F309H Stainless Steel Flanges Manufacturer
ASTM A182 F309H Stainless Steel Flanges products are designed and developed in accordance with international quality standards and national quality standards.
ASTM A182 F309H Stainless Steel Flanges Manufacturer, Supplier, and Stockists in China
Alloy 309 and 309S Flanges is best known for high temperature service. SS 309 slip on flange works well up to 2000 °F, especially if oxidation resistance is required. SS 309 Flanges 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. SS 309 Flange 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. Stainless steel 309/309S flanges can be easily welded and processed by standard shop fabrication practices. We are named as one of the top Manufacturers and Suppliers of ASTM A182 Grade F309H Flanges in China. Our available qualitative range of Stainless Steel 309 Slip-On Flanges and other types of products are exclusively designed for several piping applications of various industries such as Chemical, Petrochemical, Building, and Construction, and many more.
Equivalent Grades for Stainless Steel 309 Slip on Flanges
Standard | Werkstoff Nr. | UNS |
SS 309S | 1.4833 | S30908 |