Chemical Composition
Chemical Composition (wt%) limits as specified in ASTM A240 and ASME SA240*
Element |
409 UF |
Carbon |
0.02 |
Chromium |
10.5-11.7 |
Nickel |
0.50 |
Manganese |
0.75 |
Silicon |
1.00 |
Nitrogen |
0.030 |
Phosphorus |
0.040 |
Sulfur |
0.020 |
Titanium |
8 x (C+N) min
0.15-0.50 |
* Maximum, unless range is indicated
Mechanical Properties
Mechanical property requirements for annealed product as specified in ASTM A240 and ASME SA240
Property |
409 UF |
Yield Strength, min. (ksi) |
25 |
Tensile Strength, min. (ksi) |
55 |
Elongation, min. (%) |
20 |
Hardness, max. (Rb) |
88 |
ULTRA FORM® is a registered trademark of AK Steel Corporation
Physical Properties
Physical properties for Type 409 ULTRA FORM stainless steel
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.