AISI 1030 Steel (UNS G10300)

Description

AISI 1030 is a high-carbon steel containing approximately 0.30% carbon that can be hardened by heat treatment to a maximum hardness of approximately Rockwell C 50.  Soft annealed high carbon steel is intended for applications requiring moderate forming, while soft spheroidized annealed product is intended for applications requiring maximum cold forming.  The soft spheroidized annealed product is processed to give the lowest hardness for maximum formability.  This grade of steel is used for machinery parts, brackets, brakes, clips, clutches, springs, washers and for a wide range of applications that can make use of its good combination of mechanical properties.

Chemical Composition
Chemical Composition (wt%) limits of AISI 1030*
Element AISI 1030
Carbon 0.28-0.34
Manganese 0.60-0.90
Phosphorus 0.030
Sulfur 0.035
* Maximum, unless range is indicated
Hardness Requirements
Hardness requirements for ASTM A684 annealed high carbon steel (0.34% C)
Temper

Thickness(inch)

Rockwell HardnessMin.Max.
Under Through
Soft Annealed 0.020
0.030
0.300
-
0.020
0.030
15T87
30T71.0
B82
Soft Spheroidized Annealed 0.020
0.030
0.300
-
0.020
0.030
15T85.5
30T69.0
B77.5
Physical Properties
Physical properties for AISI 1030 steel
Property AISI 1030 Data
Density, lb/in3 0.284
Modulus of Elasticity, psi 29 x 106
Coefficient of Thermal Expansion, 68-212˚F, /˚F 6.5 x 10-6
Thermal Conductivity, Btu/ft hr ˚F 30.0
Specific Heat, Btu/lb ˚F 0.116
Electrical Resistivity, Microohm-in 6.54
Standards
Typical standards for AISI 1030 steel
AISI 1030
ASTM A684

Data are typical, are provided for informational purposes, and should not be construed as maximum or minimum values for specification or for final design, or for a particular use or application. The data may be revised anytime without notice. We make no representation or warranty as to its accuracy and assume no duty to update. Actual data on any particular product or material may vary from those shown herein.  © 2014 RMP Inc. All rights reserved.