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300 Series
A.S.T.M. A276 (except 303)
Metal & Alloy Cold Finished Round Bar
Unit of Measure
Items Metal & Alloy Cold Finished Round Bar
304-0625
Round Stainless Steel Bar - Type 304
Metal & Alloy Cold Finished Round Bar
304-0938
Round Stainless Steel Bar - Type 304
Metal & Alloy Cold Finished Round Bar
304-125
Round Stainless Steel Bar - Type 304
Metal & Alloy Cold Finished Round Bar
304-1563
Round Stainless Steel Bar - Type 304
Metal & Alloy Cold Finished Round Bar
304-1875
Round Stainless Steel Bar - Type 304
Material N/A Type 304 Stainless Steel
Shapeform N/A Round Bar
Diameter N/A 1/16 inches N/A 3/32 inches N/A 1/8 inches N/A 5/32 inches N/A 3/16 inches
Diameter N/A 0.0625 inches1.5875 mm N/A 0.0938 inches2.38252 mm N/A 0.125 inches3.175 mm N/A 0.1563 inches3.97002 mm N/A 0.1875 inches4.7625 mm
Weight N/A 0.010 lbs/ft0.01488 kg/m N/A 0.0240 lbs/ft0.035712 kg/m N/A 0.042 lbs/ft0.062496 kg/m N/A 0.065 lbs/ft0.09672 kg/m N/A 0.094 lbs/ft0.139872 kg/m
Finish N/A No. 2B
Condition N/A Cold Finished Annealed
Nominal Composition N/A 0 to 0.25% Carbon 1.00% Max. Silicon 2.00% Max. Manganese 6 to 36% Nickel 7 to 30% Chrome
ASTM Specification N/A ASTM A276 UNS S30400
Steel Alloy Group N/A Austenitic
Magnetic Properties N/A Non-Magnetic
Harden By N/A Cold Work
Corrosion Resistance N/A High
Hardness N/A Low to Med.
Strength N/A Low to Med.
Ductility N/A High
Toughness N/A High
Elec. Conductance N/A Low
Thermal Conductance N/A Low
Thermal Expansion N/A High
Heat Resistance (Scaling Strength) N/A High/High
Yield Strength N/A 46000 lbs/in²
Tensile Strength N/A 89000 lbs/in²
Elongation percent in 2 inches N/A 55 %
Hardness (Rockwell B) N/A 86
Creep Strength Load for 10000 Hr. with 1% Elongation at 1000°F N/A 17000 lbs/in²
Creep Strength Load for 10000 Hr. with 1% Elongation at 1100°F N/A 12000 lbs/in²
Creep Strength Load for 10000 Hr. with 1% Elongation at 1200°F N/A 7000 lbs/in²
Creep Strength Load for 10000 Hr. with 1% Elongation at 1300°F N/A 4000 lbs/in²
Density N/A 0.29 lbs/in³
Modulus of Elasticity in Tension N/A 28.0 x 106 lbs/in²
Specific Heat (32 to 212°F) N/A 0.12 BTU/ºF/lbs
Thermal Conductivity at 212°F N/A 9.4 BTU/hr.ft²/ft/ºF
Thermal Conductivity at 932°F N/A 12.4 BTU/hr.ft²/ft/ºF
Mean Coefficient of Thermal Expansion per °F (32 to 212°F) N/A 9.6 x 10-6 ºF
Mean Coefficient of Thermal Expansion per °F (32 to 600°F) N/A 9.9 x 10-6 ºF
Mean Coefficient of Thermal Expansion per °F (32 to 1000°F) N/A 10.2 x 10-6 ºF
Mean Coefficient of Thermal Expansion per °F (32 to 1200°F) N/A 10.4 x 10-6 ºF
Melting Point Range N/A 2550 to 2650 ºF
Electrical Resistivity N/A 72 µΩ.cm
Max. Operating Temp. (Continuous Service) N/A 1650 ºF
Max. Operating Temp. (Intermittent Service) N/A 1500 ºF
Welding Properties N/A Very Good-Tough Welds
Drawing and Stamping N/A Very Good
Hot Working - Initial Forging N/A 2100 to 2300 ºF
Annealing Temp. N/A 1850 to 2050 ºF
Stress Relieving Temp. N/A 400 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