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.

Offshore

International news and technology for marine/offshore operations around the world.

Injection Molding Design Guide

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

Machine Design

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

more free magazines
 
AISI 4142
Category Steel
Class Alloy steel
Type Standard
Common Names Chromium-molybdenum steel
Designations  United States: ASTM A322 , ASTM A331 , ASTM A505 , ASTM A519 , ASTM A547 , SAE J404 , SAE J412 , SAE J770 , UNS G41420

Composition

ElementWeight %
C  0.40-0.45 
Mn  0.75-1.00 
P  0.035 (max) 
S  0.04 (max) 
Si  0.15-0.30 
Cr  0.80-1.10 
Mo  0.15-0.25 

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  
Glossary