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AISI 1021
Category Steel
Class Carbon steel
Type Standard
Designations  United States: ASTM A29 , ASTM A510 , ASTM A519 , ASTM A545 , ASTM A548 , ASTM A576 , ASTM A659 , SAE J403 , SAE J412 , SAE J414 , UNS G10210

Composition
ElementWeight %
C  0.18-0.23 
Mn  0.60-0.90 
P  0.04 (max) 
S  0.05 (max) 

Mechanical Properties
Properties Conditions 
T (°C)Treatment
Density (×1000 kg/m3) 7.858 25  
Poisson's Ratio 0.27-0.30 25  
Elastic Modulus (GPa) 190-210 25  
Tensile Strength (Mpa) 470  25  cold drawn (round bar (19-32 mm)) more
Yield Strength (Mpa) 395 
Elongation (%) 15 
Reduction in Area (%) 40 
Hardness (HB) 121  25  cold drawn (round bar (19-32 mm)) more
Glossary
CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Essentials of Manufacturing

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

Salary Expectation

8 things to know about the interview question "What's your salary expectation"?

STEM Career Outlook

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