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AISI Type 633
Category Steel
Class Stainless steel
Type Precipitation-hardening nonstandard
Common Names Chromium steel
Designations  United States: AMS 5546 , AMS 5548 , AMS 5554 , AMS 5745 , AMS 5774 , AMS 5775 , ASTM A579 (grade 61) , ASTM A693 , SAE J467 (AM-350) , UNS S35000

Composition
ElementWeight %
C  0.07-0.11 
Mn  0.5-1.25 
Si  0.50 
Cr  16.0-17.0 
Ni  4.0-5.0 
P  0.04 
S  0.03 
Mo  2.5-3.25 
N  0.07-0.13 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.7-8.03 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 1105  25  annealed  more
Yield Strength (Mpa) 415 
Elongation (%) 30 
Reduction in Area (%)  
Hardness (HRB) 95  25  annealed more

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 11.3  20-100 more  
Thermal Conductivity (W/m-K) 14.5  38 more  

Electric Properties
Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 79  27 more  
Glossary
Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Mechanical Engineers Outlook

Guide for those interested in becoming a mechanical engineer. Includes qualifications, pay, and job duties.

Selecting the Right 3D Printer

Discover how to choose the right 3D printer for your needs and the key performance attributes to consider.

Metal 3D Printing Design Guide

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