Stainless Steel 301 - Alloy Composition

Stainless steel type 301 is part of a family of stainless steel alloys (301, 302, 303, 304, 316, 347). Type 301 is an austenitic chromium-nickel stainless steel that provides high strength and good ductility when cold worked. It is a modification of Type 304 in which the chromium and nickel contents are lowered to increase the cold work-hardening range. This permits higher tensile strengths to be achieved by rolling with a lower loss of ductility than with Type 304. The grade is essentially non-magnetic when annealed. However, when the grade is cold worked, it becomes more magnetic than other standard austenitic stainless steels.

Nominal Composition in Percentage:

Ni                     7.00

Cr                   17.00

Fe                  Balance

Si                    1.00

Mn                   2.00

C                     0.150

P                     0.045

S                     0.030

UNS Number:


Other Standard Specifications:

ASTM A167, MIL-S-5059D 


8.03 g/cm3 (0.290 lbs/in2)

Exceptional Properties:

High strength; corrosion resistance