In what is termed a Class 1 Steel {HEAD ~ the alloys} indicate tensile strengths of 630 MPa to 1100 MPa and {TAIL ~ elongations} of 10 40% Class 2 Steel indicates tensile strengths of 875 MPa to 1590 MPa and elongations of 5 30% Class 3 Steel indicates tensile strengths of 1000 MPa to 1750 MPa and elongations of 0.5 15% 
indicate
In what is termed a Class 1 Steel { HEAD ~ the alloys } indicate tensile strengths of 630 MPa to 1100 MPa and { TAIL ~ elongations } of 10 40 % Class 2 Steel indicates tensile strengths of 875 MPa to 1590 MPa and elongations of 5 30 % Class 3 Steel indicates tensile strengths of 1000 MPa to 1750 MPa and elongations of 0.5 15 %
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH