Stainless 301

Annealing Procedure

1850-2050 F (101-1121 C) followed by rapid cooling. For thin sections air cooling is acceptable, while heavier sections should be water quenched.

Applications

Automotive trim, kitchen equipment, hose clamps, wheel covers, aircraft components and a wide variety of industrial applications.

Cold Workability

Most common cold work methods are successful with this alloy. It should be understood however that the material will be more difficult to work than other austenitic stainless steels due its high work hardening rate. The resulting hardening will, however, produce increases in strength and toughness which may be of value in the finished product.

Forgeability

Commence forging at 2000-2200 F(1093-1204 C) and finish at 1700 F(927 C).

Formability

Easily formed in the annealed condition. Care must be taken in forming operations which involve deforming the material in the tempered condition as cracking and tearing can result. Intermediate annealing only serves to reduce the hardness and therefore ultimate properties.

Hardening Procedure

This alloy does not respond to heat treatment.

Hot Workability

While cold forming is recommended wherever feasible, forging, upsetting and other operations can be performed at 1800-2100 F. Temperatures above this range will cause scaling and a reduction in the workability of the material. Post-process annealing is required to re-attain maximum corrosion resistant properties.

Machinability

301 is not available in bar, plate, tube, pipe or forging, therefore no information is available.

Principle Design Features

301 is a commonly available austenitic stainless with good corrosion resistance and elevated carbon to allow for cold working to a variety of tempers. It can be obtained in the annealed, 1/4 hard, 1/2 hard, 3/4 hard, full hard, extra full hard and high yield tempers from both producers and distributors.

Weldability

All popular techniques may be used, however the material will lose temper in the heat affected weld zone.

Known Forms

Angle

Angle

Channel

Channel

Coil

Coil

Disc

Disc

Flat Bar

Flat Bar

Foil

Foil

Hexagon Bar

Hexagon Bar

Hollow Bar

Hollow Bar

Pipe

Pipe

Plate

Plate

Precision Ground Bar

Precision Ground Bar

Rectangle Tube

Rectangle Tube

Ring

Ring

Rod

Rod

Round Bar

Round Bar

Round Tube

Round Tube

Sheet

Sheet

Square Bar

Square Bar

Square Tube

Square Tube

Standard Beam

Standard Beam

Strip

Strip

Tee

Tee

Wire Flat

Wire Flat

Additional Data

Specifications

301,5517,5518,5519,A167,A177,A554,A666,1.4310,S-5059,S766,S30100

Chemical Elements

Carbon0.15 max
Chromium16 - 18
IronBalance
Manganese2 max
Nickel6 - 8
Phosphorus0.045 max
Silicon1 max
Sulphur0.03 max

Physical Properties

Density: 0.29lb/in³Density

Electrical Resistivity: 432µΩ·cmElectrical Resistivity

Specific Gravity: 7.8Specific Gravity

Specific Heat: 0.12BTU/lb·°FSpecific Heat

Mechanical Properties

Modulus of Elasticity – Tension: 28MSIModulus of Elasticity – Tension

Thermal Conductivity

ConditionTemperatureConductivity
Annealed212 °F9.4 BTU/hr·ft·°F
Annealed932 °F12.4 BTU/hr·ft·°F

Thermal Expansion

ConditionMinMaxExpansion Coefficient
Annealed70 °F212 °F9.2 μin/in·°F
Annealed70 °F572 °F9.8 μin/in·°F
Annealed70 °F1292 °F10.8 μin/in·°F
Annealed70 °F1600 °F11 μin/in·°F

Mechanical Test Data

FormSheet
ConditionAnnealed
Temperature-320°F
Elongation30%
Tensile Strength275 KSI
Yield Strength74 KSI
FormSheet
ConditionAnnealed
Temperature-80°F
Elongation40%
Tensile Strength195 KSI
Yield Strength50 KSI
FormSheet
ConditionAnnealed
Temperature-40°F
Elongation42%
Tensile Strength180 KSI
Yield Strength48 KSI
FormSheet
ConditionAnnealed
Temperature70°F
Brinell Hardness165 HB
Elongation40%
Rockwell HardnessB85
Tensile Strength75 KSI
Yield Strength30 KSI
FormSheet
ConditionAnnealed
Temperature400°F
Elongation46%
Tensile Strength80 KSI
Yield Strength22 KSI
FormSheet
ConditionAnnealed
Temperature800°F
Elongation39%
Tensile Strength67 KSI
Yield Strength20 KSI
FormSheet
ConditionAnnealed
Temperature1200°F
Elongation36%
Tensile Strength41 KSI
Yield Strength15 KSI
FormSheet
ConditionAnnealed
Temperature1600°F
Elongation29%
Tensile Strength16 KSI
Yield Strength10 KSI
FormStrip
ConditionFull Hard
Temperature-423°F
Elongation15%
Tensile Strength340 KSI
Yield Strength250 KSI
FormStrip
ConditionFull Hard
Temperature-320°F
Elongation20%
Tensile Strength302 KSI
Yield Strength215 KSI
FormStrip
ConditionFull Hard
Temperature70°F
Brinell Hardness382 HB
Elongation9%
Rockwell HardnessC41
Tensile Strength185 KSI
Yield Strength140 KSI
FormStrip
ConditionHalf Hard
Temperature-320°F
Elongation25%
Tensile Strength290 KSI
Yield Strength116 KSI
FormStrip
ConditionHalf Hard
Temperature-80°F
Elongation37%
Tensile Strength205 KSI
Yield Strength105 KSI
FormStrip
ConditionHalf Hard
Temperature-40°F
Elongation38%
Tensile Strength188 KSI
Yield Strength101 KSI
FormStrip
ConditionHalf Hard
Temperature70°F
Brinell Hardness297 HB
Elongation18%
Rockwell HardnessC32
Tensile Strength150 KSI
Yield Strength110 KSI
FormStrip
ConditionHalf Hard
Temperature400°F
Elongation9%
Tensile Strength127 KSI
Yield Strength106 KSI
FormStrip
ConditionHalf Hard
Temperature800°F
Elongation7%
Tensile Strength117 KSI
Yield Strength86 KSI
FormStrip
ConditionHalf Hard
Temperature1200°F
Elongation10%
Tensile Strength58 KSI
Yield Strength48 KSI
FormStrip
ConditionHalf Hard
Temperature1600°F
Elongation12%
Tensile Strength16 KSI
Yield Strength14 KSI
FormStrip
ConditionQuarter Hard
Temperature70°F
Brinell Hardness255 HB
Elongation25%
Rockwell HardnessC25
Tensile Strength125 KSI
Yield Strength75 KSI
FormStrip
ConditionQuarter Hard
Temperature400°F
Elongation23%
Tensile Strength91 KSI
Yield Strength62 KSI
FormStrip
ConditionQuarter Hard
Temperature800°F
Elongation18%
Tensile Strength82 KSI
Yield Strength55 KSI
FormStrip
ConditionQuarter Hard
Temperature1200°F
Elongation20%
Tensile Strength51 KSI
Yield Strength40 KSI
FormStrip
ConditionQuarter Hard
Temperature1600°F
Elongation15%
Tensile Strength19 KSI
Yield Strength15 KSI
FormStrip
ConditionThree Quarter Hard
Temperature-423°F
Elongation14%
Tensile Strength317 KSI
FormStrip
ConditionThree Quarter Hard
Temperature-320°F
Elongation20%
Tensile Strength290 KSI
Yield Strength193 KSI
FormStrip
ConditionThree Quarter Hard
Temperature-100°F
Elongation19%
Tensile Strength224 KSI
Yield Strength154 KSI
FormStrip
ConditionThree Quarter Hard
Temperature70°F
Brinell Hardness342 HB
Elongation12%
Rockwell HardnessC37
Tensile Strength175 KSI
Yield Strength135 KSI