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BS S155

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Alias

S155
BS S155
BMS 7 26
300M
AMS 6257
4340M
MIL S 8844

Chemistry

Element Min Max
C (Carbon) 0.39% 0.44%
Cr (Chromium) 1.6% 2%
Mn (Manganese) 0.6% 0.9%
Mo (Molybdenum) 0.4% 0.6%
Ni (Nickel) 3.5% 4.5%
P (Phosphorus) 0.015%
S (Sulphur) 0.01%
Si (Silicon) 1.5% 1.8%
V (Vanadium) 0.05% 0.1%
Mechanical Properties Min Max
Ultimate Tensile Strength (UTS) 1900 MPa 2100 MPa
0.2% Proof Stress 1550 MPa
Elongation 8%
Hardness (Brinell) 302 HB
Reduction of Area 30%

 

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Information is given for illustrative purposes only. Tachart accepts no responsibility for the accuracy of the data contained within or the use of the data by any other party.
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