Steels_ Metallurgy and Applications, Third Edition

Table 3.9 (conrinued)
~~ ~~ ~ ~
Heat Tensile HB range Ruling Section
treatment strength
condition range >13 mm >19 mm >29 mm >63 mm >lo0 mm >150 mm
(N/mm2)" - (13 mm 519 mm 529 mm 163 mm 5100 mm 5150 mm 1250 mm

T 850- 1ooO 248-302 135MUd

080M50b*d

2 1 6M44'sd

226M44'vd

U 925-1075 269-331 135MMd

V 1ooO-1150 293-352 708M40

W 1075-1225 311-375 708M40",'

605M36

817MW

135MMd 530M40 708M40 709M40 817M40 817M40

MOM55b*d

605M36

606M36' 606M36'

708M40 708M40 709M40 817M40 720M32 720M32

605M36 605M36

708M40 709M40 817M40 720M32 720M32 826M40

605M36

709M40"*c 817MW 720M32' 720M32' 826MW 826MW

817MW

'1 N/m2 = 1 MPa
bNo specified impact pmperties.
'Free cutting steel.
dFull mechanical pmperties may not always be obtained by bulk heat treatment but the properties can be achieved by the appropriate heat treatment of die forgings
and components.
Loften ordered in the softened condition for machining and subsequent heat treatment.
After BS 970 Part 1: 1983