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NITROY 40B - 3% Carbon Chromium Nitriding Steel
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USASPEAD
USALED
USASPEAD 40M
USACASE 32M
USASPEAD 202
USACUT 55
USANGLE
MMC
USABEND
USAFLAT
USAMILD
USACASE
USEN 6
USAKEY
USASPEAD 40
USASPEAD 55
USAWELD
USALOY 16/USEN 16
USALOY 19/USEN 19
USALOY 4140/USEN 4140
USALOY 24/ USEN 24
USALOY 24T/ USEN 24T
USEN 31
NITROY 40B
USALOY 34/USEN 34
USALOY 36/USEN 36
USALOY 351/USEN 351
USALOY 8620/USEN 8620
MAC 416 Se
MAC 431 Se
MAC 303 Se
MAC 316 Se
MMC GREY CAST IRON
SG IRON
MMC SILVER STEEL
USASPEAD (Annealed)
USASPEAD N.S.O.H.
USASPEAD 'D2'
USAKEY(Bright Drawn)
Woodruff Keys
USAFOIL (Steel)
PLASTIC Shim
USAFOIL (Brass)
PENTON
LEADED GUNMETAL
PHOSPHOR BRONZE
Rounds Hot Rolled
General
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Colour
Black / Red
Hot Rolled
BS 970: Part 1: 1983: 722M24
BS EN 10083-1: 1991: 722M24*
BS 970: 1955: En40B
*Included in the National Appendix
Chemical Compostition
C
Mn
Si
S
P
Cr
Mo
Percentage
0.20-0.28
0.45-0.70
0.10-0.35
0.040max
0.035max
3.00-3.50
0.45-0.65
Form of Supply
Hot Rolled Bars Hardened and Tempered to T condition (850-100 N/mm2)
Rounds Hot Rolled / Turned Stock Size Range - IQ
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Size (mm)
25
28
32
35
40
45
50
55
60
65
70
75
80
85
90
95
100
110
120
130
140
150
160
170
180
200
220
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