SERJEANT INDUSTRIAL CO., LTD.
(P/M) Material

Typical Properties For P/M Materials

Designation JIS EQUIV. Material Density g/cm3 Hardness Tensile ST. Material Analysis General Purpose
Fe C Cu Ni Sn Mo Cr other
SMF1 SMF
1010
Fe 6.4 HRF25 10 kgf/mm2 bal - - - - - - 1 spacer,
pole plece
SMF
1015
6.6 HRF30 15 kgf/mm2 bal - - - - - - 1
SMF
1020
6.8 HRF35 20 kgf/mm2 bal - - - - - - 1
SMF2 SMF
2015
Fe-Cu 6.2 HRF55 15 kgf/mm2 bal - 3 - - - - 1 ratchet, key, cam
SMF
2025
6.6 HRF60 25 kgf/mm2 bal - 3 - - - - 1
SMF
2030
6.8 HRB30 30 kgf/mm2 bal - 3 - - - - 1
SMF3 SMF
3010
Fe-C 6.2 HRB16 10 kgf/mm2 bal .6 - - - - - 1 thrust plate, pinion gear, shock absorber plston
SMF
3020
6.4 HRB18 20 kgf/mm2 bal .8 - - - - - 1
SMF
3030
6.6 HRB22 30 kgf/mm2 bal .8 - - - - - 1
SMF
3035
6.8 HRB25 35 kgf/mm2 bal .8 - - - - - 1
SMF4 SMF
4020
Fe-C-Cu 6.2 HRB10 20 kgf/mm2 bal 1 5 - - - - 1 gear, oil pump rotor, ball seat
SMF
4030
6.4 HRB35 30 kgf/mm2 bal 1 5 - - - - 1
SMF
4040
6.6 HRB45 40 kgf/mm2 bal 1 5 - - - - 1
SMF
4050
6.8 HRB50 50 kgf/mm2 bal 1 5 - - - - 1
SMF5 SMF
5030
Fe-C-
Cu-Ni
6.6 HRB55 30 kgf/mm2 bal .8 3 5 - - - 1 gear, synchronizer hub sprocket
SMF
5040
6.8 HRB60 40 kgf/mm2 bal .8 3 8 - - - 1
SMF6 SMF
6040
Fe-C 6.8 - 40 kgf/mm2 bal .3 25 - - - - 4 valve plate, pump gear
SMF
6055
6.8 HRB60 55 kgf/mm2 bal .7 25 - - - - 4
SMF
6065
6.8 - 65 kgf/mm2 bal .7 25 - - - - 4
SMF7 SMF
7020
Fe-Ni 6.8 - 20 kgf/mm2 bal - - 5 - - - 1 rachet pole, cam solenoid pole, mechanical seal
SMF
7025
6.8 - 25 kgf/mm2 bal - - 5 - - - 1
SMF8 SMF
8035
Fe-C-Ni 6.6 - 35 kgf/mm2 bal .8 - 5 - - - 1 gear, roller, sprocket
SMF
8040
6.8 - 40 kgf/mm2 bal .8 - 5 - - - 1
SMS1 SMS
1025
C-ST. 6.4 - 25 kgf/mm2 bal .2 - - - 14 - 3 nut, mechanical seal valve, cock, nozzle
SMS
1035
6.8 - 35 kgf/mm2 bal .2 - - - 14 - 3
SMS2 SMS
2025
Stainless 6.6 HRB40 25 kgf/mm2 bal .03 - 14 - 3 20 3 nut, mechanical seal valve, cock, nozzle
SMS
2035
6.8 HRB40 35 kgf/mm2 bal .08 - 14 - 3 20 3
SMK2 SMK
1010
Bronze 6.8 HRH40 10 kgf/mm2 - 1.5 bal - 11 - - 2 link arm,
wormwheel
SMK
1015
6.8 HRH40 15 kgf/mm2 - 1.5 bal - 11 - - 2


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