Type 305 (UNS S30500)

Description

Type 305 is a chromium nickel austenitic stainless steel with a low rate of work hardening due to the elevated nickel content. This low rate of work hardening makes this grade well suited for multi-stage deep drawing applications without process annealing where 304/304L may suffer from cracking issues. Type 305 is non-magnetic in the annealed and cold worked conditions and has corrosion resistance similar to 304/304L stainless steel.

Chemical Composition
Chemical Composition (wt%) limits as specified in ASTM A240 and ASME SA240*
Element 305
Carbon 0.12
Chromium 17.0-19.0
Nickel 10.5-13.0
Manganese 2.00
Silicon 0.75
Phosphorus 0.045
Sulfur 0.030
* Maximum, unless range is indicated
Mechanical Properties
Mechanical property requirements for annealed product as specified in ASTM A240 and ASME SA240
Property 305
Yield Strength, min. (ksi) 25
Tensile Strength, min. (ksi) 70
Elongation, min. (%) 40
Hardness, max. (Rb) 88
Physical Properties
Physical properties for Type 305
Property 305
Density, lb/in3 0.290
Modulus of Elasticity, psi 28.0 x 106
Coefficient of Thermal Expansion, 68-212˚F, /˚F 9.6 x 10-6
Thermal Conductivity, Btu/ft hr ˚F 9.4
Specific Heat, Btu/lb ˚F 0.12
Electrical Resistivity, Microohm-in 28.4
Standards
Typical standards for Type 305
305
ASTM A240
ASME SA240
AMS 5514

Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice. We make no representation or warranty as to its accuracy and assume no duty to update. Actual data on any particular product or material may vary from those shown herein.  © 2014 RMP Inc. All rights reserved.