309 Steel Steel Plate

This stainless steel plate has a wide range of uses in many industries. It is commonly used in the production of boiler baffles, furnace components, oven linings and fire box sheets. Because of its chemical composition, 309, 309S and 309H stainless steel plate are frequently used in environments that endure high heat, it can be found in waste treatment facilities specifically in things such as incinerators, rotary kilns and calciners. These grades of stainless steel are also useful in paper mill equipment as well as in petroleum refining, catalytic recovery systems and recuperates. Power generation is another area in which this stainless steel plate is very useful.

It can be utilized in pulverized coal burners and tube hangers. It is also utilized on fluidized bed furnaces, mainly in grids, piping, and wind boxes. Thermal processing including annealing covers and boxes, burner, grids doors, fans, lead pans, neutral salt pots, muffles, retorts and walking beams are very commonly made of or contain this stainless steel plate. This type of plate has many applications in which high temperatures need to be endured. This type of plate is also found in oven and stove parts and heavily utilized in the chemical and pharmaceutical industry. Due to its chemical composition, this stainless steel plate has a wide variety of uses in the higher temperature range.

Typical Values at 68°F (20°C)

Yield Strength 0.2% Offset	Ultimate Tensile Strength	Elongation in 2 in.	Hardness
psi (min.)	(MPa)	psi (min.)	(MPa)	% (min.)	(max.)
45,000	310	85,000	586	50	202 (HBN)

0.12 BTU/lb-°F (32 – 212°F)

502 J/kg-°K (0 – 100°C)

Modulus of Elasticity

28.5 x 106 psi
193 GPa

Thermal Conductivity 212°F (100°C)

9.0 BTU/hr/ft2/ft/°F
15.6 W/m-°K

Melting Range

2500 – 2590°F
1480 – 1530°C

Electrical Resistivity

30.7 Microhm-in at 68°C
78 Microhm-cm at 20°C

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