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 |
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.
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