Item # 321-2500-48-240, Stainless Steel Plate - Type 321 On Continental Steel & Tube Co.

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	Item # 321-2500-48-240, Stainless Steel Plate - Type 321

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Hot Rolled, Annealed and Pickled
A.S.T.M. A240/A480 ASME SA-240

Unit of Measure: Imperial

Specifications · Typical Mechanical Properties · Comparative Characteristics and Applications · Applications

Specifications

Material		Type 321 Stainless Steel

Shapeform		Plates

Thickness		1/4 inches

Thickness		0.25 inches

Size		48 x 240 inches

Width		48 inches

Length		240

Weight per Plate		893 lbs

Finish		No. 2B

Condition		Hot Rolled Annealed Pickled

Nominal Composition		0.08% Max. Carbon 1.00% Max. Silicon 17.00 to 20.00% Chrominum 2.00% Max. Manganese 34.00 to 37.00% Nickel

ASTM Specification		ASME SA-240 ASTM A240 ASTM A480 UNS S32100

Typical Mechanical Properties

Steel Alloy Group		Austenitic

Magnetic Properties		Non-Magnetic

Harden By		Cold Work

Corrosion Resistance		High

Hardness		Low to Med.

Strength		Low to Med.

Ductility		High

Toughness		High

Elec. Conductance		Low

Thermal Conductance		Low

Thermal Expansion		High

Heat Resistance (Scaling Strength)		High/High

Comparative Characteristics and Applications

Yield Strength		37000 lbs/in²

Tensile Strength		81000 lbs/in²

Elongation percent in 2 inches		57 %

Hardness (Rockwell B)		80

Creep Strength Load for 10000 Hr. with 1% Elongation at 1000°F		18000 lbs/in²

Creep Strength Load for 10000 Hr. with 1% Elongation at 1100°F		13000 lbs/in²

Creep Strength Load for 10000 Hr. with 1% Elongation at 1200°F		8700 lbs/in²

Creep Strength Load for 10000 Hr. with 1% Elongation at 1300°F		4500 lbs/in²

Density		0.29 lbs/in³

Modulus of Elasticity in Tension		28.0 x 10⁶ lbs/in²

Specific Heat (32 to 212°F)		0.12 BTU/ºF/lbs

Thermal Conductivity at 212°F		9.3 BTU/hr.ft²/ft/ºF

Thermal Conductivity at 932°F		12.8 BTU/hr.ft²/ft/ºF

Mean Coefficient of Thermal Expansion per °F (32 to 212°F)		9.3 x 10^-6 ºF

Mean Coefficient of Thermal Expansion per °F (32 to 600°F)		9.5 x 10^-6 ºF

Mean Coefficient of Thermal Expansion per °F (32 to 1000°F)		10.3 x 10^-6 ºF

Mean Coefficient of Thermal Expansion per °F (32 to 1200°F)		10.7 x 10^-6 ºF

Melting Point Range		2550 to 2600 ºF

Electrical Resistivity		72 µΩ.cm

Max. Operating Temp. (Continuous Service)		1650 ºF

Max. Operating Temp. (Intermittent Service)		1500 ºF

Welding Properties		Very Good-Tough Welds

Drawing and Stamping		Good

Hot Working - Initial Forging		2100 to 2300 ºF

Annealing Temp.		1750 to 2050 ºF

Stress Relieving Temp.		400 to 750 ºF

Applications

Rapid transit cars, buses, aircraft, cargo containers
Retractor springs
Hose clamps
Conveyors
Bottling machinery
Jewelry
Cryogenic vessels and components
Still tubes
Expand metal parts
Mixing bowls
Dryers
Furnace parts
Heat exchangers
Paper mill equipment
Oil refining equipment
Textile industry
Dyeing equipment
Jet engine parts
Welded storage tanks for organic chemicals
Combustion chambers
Furnace arch supports
Kiln linings
Smoke control ductwork
Coal chutes
Gauge parts
Cutlery
Fish hooks
Glass molds
Bank vaults
Fasteners
Skewers
Dairy industry
Burner and emission control components
Recuperators
Pipes, tubes

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		Terminology Sheet

		Types Finishes Spec Sheet

Item # 321-2500-48-240, Stainless Steel Plate - Type 321

Material

Shapeform

Thickness

Thickness

Size

Width

Length

Weight per Plate

Finish

Condition

Nominal Composition

ASTM Specification

Steel Alloy Group

Magnetic Properties

Harden By

Corrosion Resistance

Hardness

Strength

Ductility

Toughness

Elec. Conductance

Thermal Conductance

Thermal Expansion

Heat Resistance (Scaling Strength)

Yield Strength

Tensile Strength

Elongation percent in 2 inches

Hardness (Rockwell B)

Creep Strength Load for 10000 Hr. with 1% Elongation at 1000°F

Creep Strength Load for 10000 Hr. with 1% Elongation at 1100°F

Creep Strength Load for 10000 Hr. with 1% Elongation at 1200°F

Creep Strength Load for 10000 Hr. with 1% Elongation at 1300°F

Density

Modulus of Elasticity in Tension

Specific Heat (32 to 212°F)

Thermal Conductivity at 212°F

Thermal Conductivity at 932°F

Mean Coefficient of Thermal Expansion per °F (32 to 212°F)

Mean Coefficient of Thermal Expansion per °F (32 to 600°F)

Mean Coefficient of Thermal Expansion per °F (32 to 1000°F)

Mean Coefficient of Thermal Expansion per °F (32 to 1200°F)

Melting Point Range

Electrical Resistivity

Max. Operating Temp. (Continuous Service)

Max. Operating Temp. (Intermittent Service)

Welding Properties

Drawing and Stamping

Hot Working - Initial Forging

Annealing Temp.

Stress Relieving Temp.