Description
Type 201 is an austenitic chromiumnickel- manganese stainless steel that was developed originally to conserve nickel. It provides properties similar to Type 301 and can be used in most applications for Type 301. This alloy is nonmagnetic in the annealed condition, but becomes slightly magnetic when cold worked. The rate of work hardening is similar to Type 301, although Type 201 develops somewhat higher yield strength while retaining equal ductility when cold worked. Toughness at low temperatures is excellent.
Composition
| |
In Percentage (%) |
Carbon |
0.15 max. |
Manganese |
5.50 - 7.50 |
Phosphorus |
0.060 max. |
Sulfur |
0.030 max. |
Silicon |
1.00 max. |
Chromium |
16.00 - 18.00 |
Nickel |
3.50 - 5.50 |
Nitrogen |
0.25 max. |
Iron |
Balance |
Use
Typical uses include appliances, restaurant equipment, cooking utensils, sinks, automotive trim, architectural applications such as windows and doors, railway cars, trailers and hose clamps.
Mechanical Properties
Typical Mechanical Properties*
UTS
ksi (MPa)
|
0.2% YS
ksi (MPa)
|
Elongation
%in 2"
(50.8 mm)
|
Hardness
Rockwell |
Impact Strength
Izod V-Notch
ft-lbs (J)
|
110 (758) |
55 (379) |
52 |
B87 |
120 (163) |
Cold-Worked Properties*
Condition
|
UTS
ksi (MPa)
|
2% YS
ksi (MPa)
|
Elongation
%in 2"
(50.8 mm)
|
Hardness
Rockwell C |
1/4 hard |
125 (862) |
75 (517) |
25 |
25 |
1/2 hard |
150 (1034) |
110 (150) |
15 |
32 |
3/4 hard |
175 (1207) |
135 (931) |
12 |
37 |
Full hard |
185 (1276) |
140 (965) |
8 |
41 |
*Standard practice is to produce to either minimum tensile strength, minimum yield strength or minimum hardness, but not to
combinations of these properties.
|
