Cold Rolled, Annealed No. 2D Finish
Magnetic
Paper Interleaved

A.S.T.M. A240/A480
ASME SA-240
Unit of Measure

Specifications

Material

Type 409 Stainless Steel

Shapeform

Coil

Preparation

Paper Interleaved

Thickness

24 gauge

Thickness

0.024 inches0.6096 mm

Size

48 x Coil

Width

48

Sheet Weight per Unit Area

0.989 lbs/ft²4.828298 kg/m²

Finish

No. 2D

Condition

Cold Rolled Annealed

Nominal Composition

0 or trace Nickel 0.06 to 0.35% Carbon 0.75% Max. Titanium x Carbon Min 1.00% Max. Manganese 1.00% Max. Silicon 10.50 to 11.75% Chrominum

ASTM Specification

ASTM A240 ASTM A480 ASTM SA-240 UNS N40900

Typical Mechanical Properties

Steel Alloy Group

Ferritic

Magnetic Properties

Magnetic

Harden By

Cold Work

Corrosion Resistance

Med. to High

Hardness

Low

Strength

Low

Ductility

Med.

Toughness

Low to Med.

Elec. Conductance

Med.

Thermal Conductance

Med.

Thermal Expansion

Med.

Heat Resistance (Scaling Strength)

High/Low

Comparative Characteristics and Applications

Yield Strength

35000 lbs/in²

Tensile Strength

62000 lbs/in²

Elongation percent in 2 inches

68 %

Hardness (Rockwell B)

68

Density

0.28 lbs/in³

Modulus of Elasticity in Tension

29.0 x 106 lbs/in²

Specific Heat (32 to 212°F)

0.11 BTU/ºF/lbs

Thermal Conductivity at 212°F

14.4 BTU/hr.ft²/ft/ºF

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

6.5 x 10-6 ºF

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

7.2 x 10-6 ºF

Melting Point Range

2600 to 2750 ºF

Electrical Resistivity

60 µΩ.cm

Max. Operating Temp. (Continuous Service)

1250 ºF

Max. Operating Temp. (Intermittent Service)

1400 ºF

Welding Properties

Good Fairly-Tough Welds

Drawing and Stamping

Good

Hot Working - Initial Forging

1900 to 2100 ºF

Annealing Temp.

1500 to 1800 ºF

Applications

N/A

  • 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