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300 Series High Temp

Penn Stainless Products inventories a wide range of stainless steel heat resistant grades, including 309, 309S, 309H, 310, 310S, 310H, and 330. High temperature stainless grades are stocked in stainless steel plate, sheet, bar and tubular forms.

Do you need a non-standard pipe, tube or structural item manufactured from a high temperature stainless steel grade?  Contact our specialty pipe, tube & structural division—for rapid delivery of non-standard items!

Penn Stainless stocks the following products in 300 Series High Temp stainless steel:

Stainless Steel 300 Series High Temp Products

Stainless Steel Plate

Plate Mill Plate, Diamond Plate More Information 

Stainless Steel Sheet

2B/2D Finish, Polished Sheet, Perforated Sheet, Flat & Expanded  More Information

Stainless Steel Bar

Round Bar, Square Bar, Hex Bar, Rolled Flat. Sheared&Edged, Half Round  More Information

Stainless Steel Structural

Angles, Unequal Leg, Channel, Beams, Ornamental Square Tube, Ornamental Round Tube, Ornamental Rectangular Tube  More Information

Stainless Steel Tubular

Seamless Pipe, Welded Pipe, Seamless Tube, Seamless Tube  More Information

Please contact us directly with technical questions.

High Temp Series Applications

Type 309

Used for elevated temperature applications, including Furnace parts – conveyor belts, rollers, burner parts, refractory supports, retorts and oven linings, fans, tube hangers, baskets and trays to hold small parts; Containers for hot concentrated acids, ammonia and sulfur dioxide; contact with hot acetic and citric acid.

 Type 310/S

Corrosion resistant, including furnace parts such as conveyor belts, rollers, burner parts, refractory supports, retorts and oven linings, fans, tube hangers, and baskets and trays to hold small parts. Chemical process industry to contain hot concentrated acids, ammonia, and sulfur dioxide and in the food processing industry, they are used in contact with hot acetic and citric acid

Type 330

Combines excellent resistance to carburization and oxidation at temperatures up to 2200 F(1200 C) with high strength.Used in a variety of furnace components as well as in gas turbines, heat exchangers, general heat treating equipment and neutral and cyanide salt pots.

Type 334

 titanium- and aluminum-bearing austenitic stainless steel offering superior elevated temperature scaling resistance compared to the conventional chromium-nickel stainless steels. Heated electric heating elements

Advantages of High Temp Stainless Steel

  • Oxidation resistance up to 2100°F
  • Resistant to carburization and nitriding
  • Resistant to thermal Shock
  • Good strength at elevated temperature
  • Chloride ion stress corrosion cracking resistance
  • Superior Creep strength (ability to resist distortion over long term exposure to a high temperature).

Call us at 1-800-222-6144 for more information