properties of 301

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Stainless Steel 301

Chemistry Data

Carbon

0.15 max

Chromium

16 - 18

Iron

Balance

Manganese

2 max

Nickel

6 - 8

Phosphorus

0.045 max

Silicon

1 max

Sulphur

0.03 max

General Information

Principal 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.

Applications

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

Machinability

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

Forming

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.

Welding

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

Forging

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

Hot Working

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.

Cold Working

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.

Annealing

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

Hardening

This alloy does not respond to heat treatment.

Physical Data

Density (lb / cu. in.)

0.29

Specific Gravity

7.8

Specific Heat (Btu/lb/Deg F - [32-212 Deg F])

0.12

Electrical Resistivity (microhm-cm (at 68 Deg F))

432

Modulus of Elasticity Tension

28

Mechanical Data

Form

Sheet

Condition

Annealed

Temper

-320

Tensile Strength

275

Yield Strength

74

Elongation

30

Form

Sheet

Condition

Annealed

Temper

-80

Tensile Strength

195

Yield Strength

50

Elongation

40

Form

Sheet

Condition

Annealed

Temper

-40

Tensile Strength

180

Yield Strength

48

Elongation

42

Form

Sheet

Condition

Annealed

Temper

70

Tensile Strength

75

Yield Strength

30

Elongation

40

Rockwell

B85

Brinnell

165

Form

Sheet

Condition

Annealed

Temper

400

Tensile Strength

80

Yield Strength

22

Elongation

46

Form

Sheet

Condition

Annealed

Temper

800

Tensile Strength

67

Yield Strength

20

Elongation

39

Form

Sheet

Condition

Annealed

Temper

1200

Tensile Strength

41

Yield Strength

15

Elongation

36

Form

Sheet

Condition

Annealed

Temper

1600

Tensile Strength

16

Yield Strength

10

Elongation

29

Form

Strip

Condition

Full Hard

Temper

-423

Tensile Strength

340

Yield Strength

250

Elongation

15

Form

Strip

Condition

Full Hard

Temper

-320

Tensile Strength

302

Yield Strength

215

Elongation

20

Form

Strip

Condition

Full Hard

Temper

70

Tensile Strength

185

Yield Strength

140

Elongation

9

Rockwell

C41

Brinnell

382

Form

Strip

Condition

Half Hard

Temper

-320

Tensile Strength

290

Yield Strength

116

Elongation

25

Form

Strip

Condition

Half Hard

Temper

-80

Tensile Strength

205

Yield Strength

105

Elongation

37

Form

Strip

Condition

Half Hard

Temper

-40

Tensile Strength

188

Yield Strength

101

Elongation

38

Form

Strip

Condition

Half Hard

Temper

70

Tensile Strength

150

Yield Strength

110

Elongation

18

Rockwell

C32

Brinnell

297

Form

Strip

Condition

Half Hard

Temper

400

Tensile Strength

127

Yield Strength

106

Elongation

9

Form

Strip

Condition

Half Hard

Temper

800

Tensile Strength

117

Yield Strength

86

Elongation

7

Form

Strip

Condition

Half Hard

Temper

1200

Tensile Strength

58

Yield Strength

48

Elongation

10

Form

Strip

Condition

Half Hard

Temper

1600

Tensile Strength

16

Yield Strength

14

Elongation

12

Form

Strip

Condition

High Yield

Temper

70

Tensile Strength

270

Yield Strength

256

Form

Strip

Condition

Quarter Hard

Temper

70

Tensile Strength

125

Yield Strength

75

Elongation

25

Rockwell

C25

Brinnell

255

Form

Strip

Condition

Quarter Hard

Temper

400

Tensile Strength

91

Yield Strength

62

Elongation

23

Form

Strip

Condition

Quarter Hard

Temper

800

Tensile Strength

82

Yield Strength

55

Elongation

18

Form

Strip

Condition

Quarter Hard

Temper

1200

Tensile Strength

51

Yield Strength

40

Elongation

20

Form

Strip

Condition

Quarter Hard

Temper

1600

Tensile Strength

19

Yield Strength

15

Elongation

15

Form

Strip

Condition

Three Quarter Hard

Temper

-423

Tensile Strength

317

Elongation

14

Form

Strip

Condition

Three Quarter Hard

Temper

-320

Tensile Strength

290

Yield Strength

193

Elongation

20

Form

Strip

Condition

Three Quarter Hard

Temper

-100

Tensile Strength

224

Yield Strength

154

Elongation

19

Form

Strip

Condition

Three Quarter Hard

Temper

70

Tensile Strength

175

Yield Strength

135

Elongation

12

Rockwell

C37

Brinnell

342