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AISI 4037
Category Steel
Class Alloy steel
Type Standard
Common Names Molybdenum steel
Designations  United States: AMS 6300 , ASTM A322 , ASTM A331 , ASTM A519 , ASTM A547 , SAE J404 , SAE J412 , SAE J770 , UNS G40370

Composition

ElementWeight %
C  0.35-0.40 
Mn  0.70-0.90 
P  0.035 (max) 
S  0.04 (max) 
Si  0.15-0.30 
Mo  0.20-0.30 

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) 1027  25  oil quenched, fine grained, tempered at 205°C  more
Yield Strength (Mpa) 758 
Elongation (%)
Reduction in Area (%) 38 
Hardness (HB) 310  25  oil quenched, fine grained, tempered at 205°C more

Thermal Properties

Properties Conditions 
T (°C)Treatment
Thermal Conductivity (W/m-K) 48.2  100 more  
Glossary
Essentials of Manufacturing

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

STEM Career Outlook

Wages, employment opportunities, and growth projections for STEM jobs.

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

Injection Molding Design Guide

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