Typical Mechanical Properties of round Alloy Steel Tube and Pipe

Taken from: http://www.emjmetals.com/

Legend:
CREW = Cold Rolled Electric Welded
HREW = Hot Rolled Electric Welded
ERW = Electric Resistance Welded
CDS = Cold Drawn Seamless
DOM = Drawn Over Mandrel
HFS = Hot Finished Seamless
CDBW = Cold Drawn Butt Welded (Continuous)
W&D = Welded and Drawn

Grade  and  Description Tensile Strength Yield Strength Elongation Rockwell hardness
         
Units ksi ksi % in 2" typical
4130
CDS		 90 70 20 RB91
4130
HFS		 90 70 20 RB91
4130
DOM		 100 90 15 RB90
4140
CDS
NORM    120
SRA    120
HT    140
NORM    90
SRA    100
HT    115
10-20
NORM    RB101
SRA    RB101
HT    RB108
4140
HFS		 120 90 20 RB101
4340
CDS, HFS		 CDS 110 CDS 75 16-20 CDS RB98
8620
CDS, HFS		 78 56 31 RB83
52100
CDS ANN, HFS ANN
9Cr1Mo
Seamless		 93 60 31.3 RC22