300 Series
A.S.T.M. A276 (except 303)
Unit of Measure

Specifications

Material

N/AType 304 Stainless Steel

Shapeform

N/ARound Bar

Diameter

N/A1/4 inches

Diameter

N/A0.25 inches6.35 mm

Weight

N/A0.167 lbs/ft0.248496 kg/m

Finish

N/ANo. 2B

Condition

N/ACold Finished Annealed

Nominal Composition

N/A0 to 0.25% Carbon1.00% Max. Silicon2.00% Max. Manganese6 to 36% Nickel7 to 30% Chrome

ASTM Specification

N/AASTM A276UNS S30400

Typical Mechanical Properties

Steel Alloy Group

N/AAustenitic

Magnetic Properties

N/ANon-Magnetic

Harden By

N/ACold Work

Corrosion Resistance

N/AHigh

Hardness

N/ALow to Med.

Strength

N/ALow to Med.

Ductility

N/AHigh

Toughness

N/AHigh

Elec. Conductance

N/ALow

Thermal Conductance

N/ALow

Thermal Expansion

N/AHigh

Heat Resistance (Scaling Strength)

N/AHigh/High

Comparative Characteristics and Applications

Yield Strength

N/A46000 lbs/in²

Tensile Strength

N/A89000 lbs/in²

Elongation percent in 2 inches

N/A55 %

Hardness (Rockwell B)

N/A86

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

N/A17000 lbs/in²

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

N/A12000 lbs/in²

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

N/A7000 lbs/in²

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

N/A4000 lbs/in²

Density

N/A0.29 lbs/in³

Modulus of Elasticity in Tension

N/A28.0 x 106lbs/in²

Specific Heat (32 to 212°F)

N/A0.12 BTU/ºF/lbs

Thermal Conductivity at 212°F

N/A9.4 BTU/hr.ft²/ft/ºF

Thermal Conductivity at 932°F

N/A12.4 BTU/hr.ft²/ft/ºF

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

N/A9.6 x 10-6ºF

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

N/A9.9 x 10-6ºF

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

N/A10.2 x 10-6ºF

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

N/A10.4 x 10-6ºF

Melting Point Range

N/A2550 to 2650 ºF

Electrical Resistivity

N/A72 µΩ.cm

Max. Operating Temp. (Continuous Service)

N/A1650 ºF

Max. Operating Temp. (Intermittent Service)

N/A1500 ºF

Welding Properties

N/AVery Good-Tough Welds

Drawing and Stamping

N/AVery Good

Hot Working - Initial Forging

N/A2100 to 2300 ºF

Annealing Temp.

N/A1850 to 2050 ºF

Stress Relieving Temp.

N/A400 to 750 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