Metal Alloys
Alloy Home
Steels
Alloy Steels
General Information
Properties
Classification
Standard
H-Steels
HSLA
Alloy Steel List
AISI 1xxx
AISI 2xxx
AISI 3xxx
AISI 4xxx
AISI 5xxx
AISI 6xxx
AISI 8xxx
AISI 9xxx
* For other AISI or Non-AISI, please use the search function above or check Grades.
ASTM Steels
Specific Alloy Steel
General Information
Resources
Bibliography
3D Scanners

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

Metal 3D Printing Design Guide

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

Power Transmission

Gear drives, bearings, motors, clutches, couplings, machine controls, sensors and components.

Machine Design

How-to, in-depth technical articles for machine design engineers

more free magazines
 
AISI 1340
Category Steel
Class Alloy steel
Type Standard
Common Names Manganese steel
Designations  United States: ASTM A322 , ASTM A331 , ASTM A519 , ASTM A547 , MIL SPEC MIL-S-16974 , SAE J404 , SAE J412 , SAE J770 , UNS G13400

Composition

ElementWeight %
C  0.38-0.43 
Mn  1.60-1.90 
P  0.035 (max) 
S  0.04 (max) 
Si  0.15-0.30 

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) 703.3  25  annealed at 800°C  more
Yield Strength (Mpa) 436.4 
Elongation (%) 25.5 
Reduction in Area (%) 57.3 
Hardness (HB) 207  25  annealed at 800°C more
Impact Strength (J)
(Izod)
70.5  25  annealed at 800°C  more
Glossary