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
Power Transmission

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

Quality Magazine

Techniques to improve quality on the shop floor and in manufacturing planning.

3D Scanners

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

Negotiate Your Salary

Learn the best principles to negotiate the salary you deserve!

more free magazines
 
AISI 94B30
Category Steel
Class Alloy steel
Type Standard
Common Names Boron steel
Designations  United States: ASTM A322 , ASTM A331 , ASTM A519 , SAE J404 , SAE J412 , SAE J770 , UNS G94301

Composition

ElementWeight %
C  0.28-0.33 
Mn  0.75-1.00 
P  0.035 (max) 
S  0.04 (max) 
Si  0.15-0.30 
Cr  0.30-0.50 
Ni  0.30-0.60 
Mo  0.08-0.15 
B  0.0005-0.003 

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) 1724  25  oil quenched, fine grained, tempered at 205°C  more
Yield Strength (Mpa) 1551 
Elongation (%) 12 
Reduction in Area (%) 46 
Hardness (HB) 475  25  oil quenched, fine grained, tempered at 205°C more
Glossary