Metal Alloys
Alloy Home
Steels
Stainless Steels
General Information
Properties
Stainless Stl. Grades
Austenitic
Martensitic
Ferritic
Precipitation Hardening
Stainless Steel List
AISI Type 2xx
AISI Type 3xx
AISI Type 4xx
AISI Type 5xx
AISI Type 6xx
* For other AISI or Non-AISI, please use the search function above or check Grades.
Specific Stainless Stl
General Information
Resources
Bibliography
Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

Metal 3D Printing Design Guide

Direct Metal Laser Sintering (DMLS) 3D printing for parts with reduced cost and little waste.

Autonomous Vehicle Engineering

The No. 1 media source for those developing the next generation mobility solutions.

Quality Magazine

Techniques to improve quality on the shop floor and in manufacturing planning.

more free magazines
 
AISI Type 409
Category Steel
Class Stainless steel
Type Ferritic standard
Common Names Chromium steel
Designations  Germany: DIN 1.4512
Japan: JIS SUH 409
United Kingdom: B.S. 409 S 17
United States: ASME SA268 , ASTM A176 , ASTM A268 , ASTM A651 , SAE 51409 , SAE J405 (51409) , UNS S40900

Composition
ElementWeight %
C  0.08 
Mn  1.00 
Si  1.00 
Cr  10.5-11.75 
P  0.045 
S  0.045 
Ti  0.48-0.75 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.8 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 450  25  annealed (plate, sheet, strip) more
Yield Strength (Mpa) 240 
Elongation (%) 25 
Reduction in Area (%)  
Hardness (HRB) 80 (max)  25  annealed (bar) more

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 11.7  0-100  
Thermal Conductivity (W/m-K) 24.9  95 more  
Glossary