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AISI Type 314
Category Steel
Class Stainless steel
Type Austenitic standard
Common Names Chromium-Nickel steel
Designations  France: AFNOR Z 12 CNS 25.20
Germany: DIN 1.4841
Italy: UNI X 16 CrNiSi 25 20 , UNI X 22 CrNi 25 20
Japan: JIS SUS Y 31O
United Kingdom: B.S. 310 S 24
United States: AMS 5522 , AMS 5652 , ASTM A276 , ASTM A314 , ASTM A473 , ASTM A580 , SAE 30314 , SAE J405 (30314) , UNS S31400

Composition
ElementWeight %
C  0.25 
Mn  2.00 
Si  1.5-3.0 
Cr  23.0-26.0 
Ni  19.0-22.0 
P  0.045 
S  0.03 

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) 200 25  
Tensile Strength (Mpa) 515  25  hot finished and annealed (wire) more
Yield Strength (Mpa) 205 
Elongation (%) 40 
Reduction in Area (%) 50 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 15.1  0-315  
Thermal Conductivity (W/m-K) 17.5  100 more  
Specific Heat (J/kg-K) 500  0-100   

Electric Properties
Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 770  25   
Glossary
Salary Expectation

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

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.