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Metal 3D Printing Design Guide

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

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

CNC Machining Design Guide

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

Mechanical Engineers Outlook

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

more free publications
 
AISI Type 309SCb
Category Steel
Class Stainless steel
Type Austenitic nonstandard
Common Names Chromium-Nickel steel
Designations  United States: ASTM A554 , UNS S30940

Composition
ElementWeight %
C  0.08 
Mn  2.00 
Si  1.00 
Cr  22.0-24.0 
Ni  12.0-15.0 
P  0.045 
S  0.03 
Nb  0.64 (min) 

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) 200 25  
Tensile Strength (Mpa) 620  25  annealed (soft temper wire, 1.57 mm in diameter) more
Yield Strength (Mpa) 310 
Elongation (%) 45 
Reduction in Area (%)  
Hardness (HB) 156  25  annealed (soft temper wire, 12.7 mm in diameter) more

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 14.9  0-100 more  
Thermal Conductivity (W/m-K) 15.6  100 more  
Glossary
Metal 3D Printing Design Guide

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

Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

CNC Machining Design Guide

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

Mechanical Engineers Outlook

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