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Metal 3D Printing Design Guide

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

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Selecting the Right 3D Printer

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

more free publications
 
AISI Type 420
Category Steel
Class Stainless steel
Type Martensitic standard
Common Names Chromium steel
Designations  France: AFNOR Z 20 C 13
Germany: DIN 1.4021
Italy: UNI X 2O Cr13
Japan: JIS SUS 420 J1
Sweden: SS 2303
United Kingdom: B.S. 420 S 37 , B.S. CDS-18
United States: AMS 5506 , AMS 5621 , ASTM A276 , ASTM A314 , ASTM A473 , ASTM A580 , FED QQ-S-763 , FED QQ-S-766 , FED QQ-W-423 , MIL SPEC MIL-S-862 , SAE 51420 , SAE J405 (51420) , UNS S42000

Composition
ElementWeight %
C  0.15 (min) 
Mn  1.00 
Si  1.00 
Cr  12.0-14.0 
P  0.04 
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) 860  25  annealed, cold finished (wire) more
Yield Strength (Mpa)  
Elongation (%)  
Reduction in Area (%)  
Hardness (HRC) 52  25  tempered at 205°C (bar) 

Thermal Properties
Properties Conditions 
T (°C)Treatment
Thermal Expansion (10-6/ºC) 10.3  0-100 more  
Thermal Conductivity (W/m-K) 24.9  100   
Specific Heat (J/kg-K) 460  0-100   

Electric Properties
Properties Conditions 
T (°C)Treatment
Electric Resistivity (10-9W-m) 550  25   
Glossary
Metal 3D Printing Design Guide

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

Essentials of Manufacturing

Information, coverage of important developments and expert commentary in manufacturing.

3D Scanners

A white paper to assist in the evaluation of 3D scanning hardware solutions.

Selecting the Right 3D Printer

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